ACON - VA/NC/SC
The Atlantic Coast Observer Network:   Virginia, North Carolina, South Carolina
http://members.cox.net/wxr/acon.htm

SUMMARY OF CLIMATOLOGICAL DATA 
SEPTEMBER 2004

...ANOTHER WET MONTH AS REMNANTS FROM 3 HURRICANES
DOUSE WESTERN SECTIONS OF THE AREA...
...CLOSE TO NORMAL TEMPERATURES FOR MOST...

Last month there were Alex, Bonnie, Charley and finally Gaston! September 2004 brought even more remnant systems from Frances, Ivan ("the long-lived"), and Jeanne! Quite interestingly, in August, the heaviest rains from tropical storms doused the eastern reaches of our three-state area. In September, our western areas received the brunt of the tropical rains as the remnants of all three storms moved further west and north. 2004 certainly will be remembered for its tropical systems and accompanying rains. Please check the Raleigh station summary after the data tables below for a link to the full September 2004 NC Weather Summary prepared by RAH.

Of particular interest was Hurricane Ivan. After coming ashore in the Gulf States, the remnants of the system moved up through the western Carolinas into south-central VA then headed E just south of Richmond on its way to the coast where it turned to the south offshore, then headed south to FL. There it turned west then headed across the state and into the Gulf of Mexico and on towards New Orleans, eventually completing a loop and reorganizing then heading toward the central Texas coast. Never have seen a storm in the latter half of the previous century nor the first four years of this one make those kinds of moves! Whew! I'm dizzy reading this "tale of one confused tropical system"!

Lowell Koontz (Annandale, VA) made an observation that many of us noted throughout the region during September, one that continues in to October. The nighttime temps were well-above normal while the afternoon highs were cooler than normal, easily attributed to excess cloudiness and a strong surface flow from the SE and S.

A major tornadic outbreak occurred in association with the remnants of Ivan in our northern reaches in Western and Northern Virginia on the 17th. Nearly a dozen tornadoes were reported south and west of Arlington. The remnants of Jeanne brought heavy rain and flooding to western and northern Virginia.

Wendell Prillaman (ROK) experienced his wettest month ever! Details in his station summary below the data tables.

Tri-Cities noted its 4th wettest September ever.

  • U.S. DAILY WEATHER MAPS PROJECT   Looking for that NOAA Daily Weather Map for a given date since 1871? Look no further! Visit the NOAA Central Library U.S. Daily Weather Maps Project [1871-2001] at http://docs.lib.noaa.gov/rescue/dwm/data_rescue_daily_weather_maps.html. A link to maps for 2002 to the present is found at the top of the page. Great resource! Note: You will need to download and install a small program in order to view the maps.


  • REMINDER All National Weather Service station data listed herein is preliminary and may be subject to change.  The data has not been certified and cannot be used in legal actions.  Only reports certified by the National Climatic Data Center in Asheville, NC can used for these purposes.

ACON VA/NC/SC Member Station Extremes - SEPTEMBER 2004
State
Maximum Temperature
Minimum
Temperature
Warmest
Average
Temperature
Coldest
Average
Temperature
Maximum
Precipitation
Minimum
Precipitation
Virginia
88°
Newport News, Richmond,
Richmond,Roanoke (ROA),
Ruther Glen,Wakefield
39°
Blacksburg
72.6°
Norfolk (ORF)
64.4°
Blacksburg
15.20"
Roanoke (ROK)
2.20"
Newport News
North Carolina
90°
Greensboro
43°
Asheville
75.5°
Cape Hatteras
66.4°
Asheville
13.71"
Asheville
2.10"
Greensboro
South Carolina
89
Charleston
52°
Anderson, Columbia
Florence,Greenville-Spartanburg
76.4°
Charleston
70.8°
Greenville-Spartanburg
13.08"
Anderson
3.71"
Charleston

(Please note the column denotations table below.)
TEMPERATURE / WINDS/ ELEMENTS

VIRGINIA
[Reminder: All NWS DATA HEREIN IS NOT OFFICIAL]

     STN  A      B    C     C1    D    E  F     G   H  I  J K K1  L  M     N   N1   N2   O P Q R R1 R2  S    CWA
     -----------------------------------------------------------------------------------------------------------
     ANN 76.67 61.33 69.00 +1.3  82 13,22 47   20   0  0  0 0 80% 30 W    18             2 0 0 0  0     2400 LWX
                                       23
     BCB 74.9  53.9  64.4  -1.4  83    22 39   20   0  0  0 0 76% 32 330 18   3.9       0 0 0 0  6 50% 2400 RNK
     BRI 78.4  58.8  68.6  +2.5  87     4 45   20   0  0  0 0                            0 0 0 0  0     2400 LWX
     CEN 78.7  62.0  70.4  +3.9  85  1,23 48   20   0  0  0 0     37 017 18             5 0 0 0  0     2400 LWX
     CHO 77.8  58.2  68.0  -1.2  87    22 44 20,21  0  0  0 0     29 340 18   3.3       2 0 0 0  5     2400 LWX
     DAN 78.6  59.5  69.1  -1.3  86    22 44   21   0  0  0 0 80% 36 210 17   4.6       3 0 0 0  8 40% 2400 RNK
     DCA 79.1  64.1  71.6  +1.1  87    23 51   19   0  0  0 0 72% 41 360 18   7.1       3 0 0 0  0 70% 2400 LWX
     IAD 78.8  58.7  68.8  +1.4  86    23 46   21   0  0  0 0     43 200 17   5.1       1 0 0 0  2     2400 LWX
     FCH 80.4  62.4  71.4        86  2,25 56   22   0  0  0 0     32      17             2 0 0 0  4     2400 LWX
     HER 76.2  60.0  68.1  +0.8  82.0   4 45.9 20   0  0  0 0     28      18            1+ 0 0 0        2400 LWX
     HRN 76.1  58.9  67.4  +0.1  82.9  23 45.0 20   0  0  0 0 81% 38 N    18   2.2  E    3 0 0 0  0     2400 LWX
     LYH 77.1  58.1  67.6  +0.5  87    22 43 21,20  0  0  0 0 78% 32 230 17   3.3       2 0 0 0  4 40% 2400 RNK
     NEW 77.1  56.40 66.75       85     1 41   20   0  0  0 0 71% 22 NW    9   9.16 S    2 0 0 0  7     1800 LWX
                                                                  22 WNW  18                                            
     NPN 80.3  63.6  72.0        88    24 50   21   0  0  0 0     27 W    28             3 0 0 0  0     2400 AKQ
     NOR 79.3  65.1  72.2  +0.6  87    17 51   21   0  0  0 0                            1 0 0 0  0     2400 AKQ
     ORF 78.1  67.1  72.6  +0.5  87    17 54   21   0  0  0 0 82% 45 020 18   9.1       5 0 0 0  0 50% 2400 AKQ
     FCH 78.26 63.94 71.10       87     8 53.1 21   0  0  0 0 85% 32 023 18   3.0  023 3 0 0 0  0     2400 LWX
                                                                  32 023 19               
     POR 78.5  65.9  72.2  -0.3  83  8,9, 53   21   0  0  0 0 --% 34 360 18   3.24 095 3 0 0 0  0 47% 2400 AKQ
                                       22                            360  19
     MEC 72.67 61.34 70.07       85    22 47   21   0  0  0 0                            4 0 0 0  2     1700 AKQ
     RIC 79.9  63.3  71.6  +1.8  88    22 51   21   0  0  0 0 80% 40 210 17   6.4       3 0 0 0  2 70% 2400 AKQ
     RGL 78.56 60.95 69.75 -0.04 88.2  22 47.8 20   0  0  0 0 82% 26 ENE  18   1.0  NE   5 0 0 0  1     2400 AKQ
     ROA 78.0  60.2  69.1  +1.4  88    22 46   20   0  0  0 0 72% 40 310 17   5.1       1 0 0 0  0 40% 2400 RNK
     ROK 78.3  58.5  68.4  +0.8  87    22 43   20   1  0  0 0     30 SE    8             1 0      0     2300 RNK
     AKQ 81    61    71.0        88    22 47   21   0  0  0 0                                           2400 AKQ
     WAL 78.1  63.2  70.6  +2.1  86    22 51   21   0  0  0 0     38 150 17   9.4       1 0 0 0  1     2400 AKQ
                                                                  38 150 18
     WOO 75.2  60.4  67.8  +1.2  83     5 49   20   0  0  0 0                            4 0 0 0  7     2400 LWX
     WSH 75.1  59.3  67.2        83.9  22 45.8 20   0  0  0 0     21 S    18   0.7  SSW  2 0 0 0  0     2400 LWX
NORTH CAROLINA
[Reminder: All NWS DATA HEREIN IS NOT OFFICIAL]

     STN  A      B    C     C1    D    E  F     G   H  I  J K K1  L  M     N   N1   N2   O P Q R R1 R2  S    CWA
     -----------------------------------------------------------------------------------------------------------
     AVL 75.0  57.9  66.4  +0.7  83    23 43   21   0  0  0 0     52 150 16   4.7       3 0 0 0 14     2400 GSP
                                                                  35 040  9
     MRH 81.4  69.4  75.4        87   4,8 57   23   0  0  0 0     39 010 19   9.6       7 0 0 0  1     2400 MHX
                                                                  39 220 28
     CLT 80.3  61.9  71.1  -1.6  86     1 49   19   0  0  0 0     40 150 17   7.6       3 0 0 0  1     2400 GSP
     ECG 80.6  65.7  73.1  -0.2  87     9 50   21   0  0  0 0 79% 41 190 17  10.0       6 0 0 0  1 40% 2400 AKQ
     FAY 82.0  65.3  73.6        89    17 52   20   0  0  0 0 75% 47 260 17   7.9       1 0 0 0  4 40% 2400 RAH
     GSO 83.7  66.0  74.9  -1.3  90 20,28 54    7   4  0  0 0 73% 37 010  5   6.1       5 0 0 0  0 40% 2400 RAH
     HSE 80.3  70.7  75.5  -0.7  85  8,17 63   22   0  0  0 0     37 020 19   9.3       0 0 0 0  0     2400 MHX
     HKY 78.5  60.6  69.6  -0.3  84 22,23 48 20,21  0  0  0 0     33 310 17   5.7       2 0 0 0  5     2400 GSP
     LBT 81.2  65.3  73.2  +1.1  87    17 53 20,22  0  0  0 0     37 240 17   7.8       0 0 0 0  0     2400 ILM
     EWN 81.5  66.9  74.2  +0.2  87    17 54   23   0  0  0 0     40 170 17   7.7       7 0 0 0  5     2400 MHX
     RAL 80.3  60.9  70.6  -0.6  86    22 46   21   0  0  0 0     29      17             3 0 0 0  1     2400 RAH
     RDU 80.2  32.4  71.3  +0.1  87    17 49   21   0  0  0 0 78% 79 180 17   6.2       2 0 0 0  5 60% 2400 RAH
     ROX 78.8  60.9  69.9  +1.3  87    22 47 20,21  0  0  0 0 71% 40 S    17        E    1 0 0 0  6 49% 2200 RAH
     ILM 81.9  67.2  74.6  -0.5  86 22,23 56 20,21  0  0  0 0     45 170 17   8.7       6 0 0 0  1     2400 ILM
SOUTH CAROLINA
[Reminder: All NWS DATA HEREIN IS NOT OFFICIAL]

     STN  A      B    C     C1    D    E  F      G  H  I  J K K1  L  M     N   N1   N2   O P Q R R1 R2  S    CWA
     -----------------------------------------------------------------------------------------------------------
     AND 80.0  63.3  71.6  -0.6  57    23 52 21,22  0  0  0 0     44 100 16   8.3       5 0 0 0  0     2400 GSP
     CAE 82.4  67.1  74.7  -0.1  88     5 52    22  0  0  0 0     46 180 27   8.7       3 0 0 0  1     2400 CAE
     CHS 83.5  69.2  76.4  +0.3  89     9 58    20  0  0  0 0     41 160 27  10.4       3 0 0 0  2     2400 CHS
     CRE 82.1  68.5  75.3  +1.1  86  4,23 57    22  0  0  0 0     44 210 17   8.7       7 0 0 0  5     2400 ILM
     FLO 81.8  65.9  73.9  -0.8  87 17,23 52    20  0  0  0 0     41 100 27   9.0       4 0 0 0  3     2400 ILM
     GSP 78.8  62.9  70.8  -0.6  86    23 52 20,21  0  0  0 0     46 140 16   7.5       4 0 0 0  2     2400 GSP
     OGB 82.6  66.6  74.6        88     1 55 20,21  0  0  0 0     39 220 17   8.5       4 0 0 0  0     2400 CAE
                                                                  39 200 27
NEARBY STATIONS
[Reminder: All NWS DATA HEREIN IS NOT OFFICIAL]

     STN  A      B    C     C1    D    E  F      G  H  I  J K K1  L  M     N   N1   N2   O P Q R R1 R2  S    CWA
     -----------------------------------------------------------------------------------------------------------
     TRI 79.1  56.6  67.8  +1.2  86 22,23  44   21 0  0  0 0     28 290  17   3.2       0 0 0 0  7     2400 MRX
                                                                 23 270  12
     DAV 67.8  51.3  59.6        75    23  10  19, 0  0  0 0                             4 0 0 0  1     1900 PBZ
20,21

(Please note the column denotations table below.)
PRECIPITATION / BAROMETRIC PRESSURE

VIRGINIA
[Reminder: All NWS DATA HEREIN IS NOT OFFICIAL]
STN  T      T1     U  U1   V    V1   W X   Y     Z   1  2 3   4    5     6    6A   7    7A    8     S
-------------------------------------------------------------------------------------------------------
ANN  3.98        1.99 28 2.00 28-29 11 1 33.72  0.0          0.0  16.3  30.43  20 29.52  18 30.11  2400
BCB  9.39  +6.00 4.26 28 4.26    28  8 3 37.88  0.0          0.0  30.7                             2400
BRI  8.50  +4.98 4.05 28 4.05    28  6 3 34.19  0.0          0.0  25.2  30.27     29.66            0515/1600
CEN  6.34  +2.87 2.45 28 2.45    28  9 3 32.45  0.0          0.0  16.9  30.42  20 29.98            2400
CHO  8.89  +4.04 2.41  8 2.60 27-28 13 3 29.56  0.0          0.0                                   2400
DAN  6.67  +2.59 2.10 17 2.10    17  8 3 58.11  0.0          0.0        30.40  20 29.51  17        2400
DCA  3.99  +0.20 2.46 28 2.46    28  9 1 33.26  0.0          0.0  12.2                             2400
IAD  5.80  +1.98 1.71 17 2.39 17-18 10 3 31.08  0.0          0.0  17.4                             2400
FCH  4.27        1.37 28 1.54 28-29 12 2 32.41  0.0          0.0  15.0                             2400
HER  5.46  +1.64 1.50 28 1.92 17-18  9 3 34.09  0.0          0.0  20.7                             2400
HRN  5.69  +1.87 1.82 28            10 3 32.75  0.0          0.0  19.5  30.388 20 29.503 18 30.08  2400
LXI                                      30.02 [through August 2004]                               2400
LYH  6.64  +2.76 2.27  8 2.39   7-8  8 3 28.31  0.0          0.0  12.1  30.43  20 29.52  17        2400
NEW  6.70  +3.00 2.35 17             7 3 30.15  0.0          0.0  29.5  30.46 15, 29.86  18        1700
                                                                               20                    
NPN  2.20        0.56  9 0.56     9 10 0 47.76  0.0          0.0   7.1  30.22  20 29.48  18        2400
NOR  4.79  +0.13 2.91 15             8 1 50.79  0.0          0.0   7.2                             2400
ORF  3.30  -0.76 1.56 15 1.58 14-15 11 1 46.21  0.0          0.0   6.2  30.35  20 29.53  18        2400
FHC  4.53        2.00 15 2.00    15 11 1 54.72  0.0          0.0   6.0  30.337 20 29.528 18 30.069 2400
POR  5.14  +0.31 2.19 15 2.19    15 10 1 41.61  0.0          0.0   6.5  30.352 20 29.519 18 30.087 2400
MEC  9.90        1.73 18 2.96   8-9 11 4 61.63  0.0          0.0   7.4  30.12  20 29.35  28        1700
RIC  6.14  +2.16 2.84  8 2.85   8-9 11 1 50.19  0.0          0.0   6.2  30.41  20 29.51  18        2400
RGL  8.01  +4.03 2.29 17 2.79 17-18 11 4 35.66  0.0          0.0   3.25 30.40  20 29.48  18 30.08  2400
ROA 11.72  -7.87 4.40  8 7.93   7-8 10 3 38.83  0.0          0.0  22.0  30.42  20 29.53  17        2400
ROK 15.20        6.35  8 6.35     8  7 3 41.73  0.0          0.0  22.1  30.41  20 29.58  17        2400
AKQ  4.79        1.95 16            11 1 45.34  0.0          0.0   7.6                             2400
WAL  2.78  -0.72 1.70 15 1.70    15  8 1 40.89  0.0          0.0   9.6  30.37  20 29.52  29        2400
WOO  7.63  +3.75         2.78   8-9 12 3 32.93  0.0          0.0  26.2  30.46  20 29.83   9        0800
WSH 14.75  +8.42 3.97  8 4.59   8-9 12 4 39.63  0.0          0.0  22.2  30.43  20 29.58  18        2400
NORTH CAROLINA
[Reminder: All NWS DATA HEREIN IS NOT OFFICIAL]
STN  T      T1     U  U1   V    V1   W X   Y     Z   1  2 3   4    5     6    6A   7    7A    8     S
-------------------------------------------------------------------------------------------------------
AVL 13.71  +9.99 3.78  7 4.20 16-17  9 4 42.80  0.0          0.0 14.3  30.38  21 29.53  17         2400
MRH  4.68        1.52 27 1.52    27 13 2        0.0          0.0                                   2400
CLT  6.87  +3.04 2.38  7 3.21   7-8  9 3 37.58  0.0          0.0 14.5  30.37  20 29.55  28         2400
ECG  2.53  -2.54 0.68 28 1.23 27-28 10 0 39.09  0.0          0.0  8.5  30.33  20 29.56  18         2400
FAY  6.95        3.54  8 3.60   7-8  9 2 30.26  0.0          0.0       30.31  21 29.58  17         2400
GSO  2.10  -1.61 0.88 14 1.08 13-14 11 0 23.14  0.0          0.0 18.5                              2400
HSE  4.47  -1.21 1.53 27 1.53    27 15 2        0.0          0.0                                   2400
HKY  9.53  +5.29 3.94  7 5.44   7-8 11 4 37.03  0.0          0.0 12.7  30.36  20 29.49  17         2400
LBT  4.01  -0.60 1.81  7 2.42   7-8  9 1 32.98  0.0          0.0       30.32  21 29.60  17         2400
EWN  9.49  +4.04 3.46  6 3.49   6-7 12 2        0.0          0.0                                   2400
RAL  5.21  +0.95         1.20 16-17 11 1 38.02  0.0          0.0 14.8  30.33  20 29.56  18         1900
RDU  4.49  +0.23 0.96 17 1.41 17-18 10 0 39.26  0.0          0.0 14.9  30.37  20 29.56  17         2400
ROX  4.02  +0.53 0.81  8 0.81     8  9 0 36.42  0.0          0.0  8.0  30.39  20 29.55  18  29.97  2100
ILM  9.93  +3.14 1.87  6 1.99 14-15 16 4 44.23  0.0          0.0       30.28  21 29.66  17         2400
SOUTH CAROLINA
[Reminder: All NWS DATA HEREIN IS NOT OFFICIAL]
STN  T      T1     U  U1   V    V1   W X   Y     Z   1  2 3  4     5     6    6A   7    7A    8    S
------------------------------------------------------------------------------------------------------ 
AND 13.08  +8.89 4.12 27 5.96   7-8 11 3 37.74  0.0          0.0  4.6  30.35  21 29.54  28        2400
CAE  7.23  +3.40 2.62  7 2.72     7 10 3 42.31  0.0          0.0  0.4                             2400
CHS  3.71  -2.27 1.53  6 1.60   6-7 13 1 35.45  0.0          0.0    T  30.24  22 29.68  17        2400
CRE  3.97  -1.61 1.00 17 1.00    17 14 1 40.30  0.0          0.0       30.27  21 29.65  17        2400
FLO  6.72  +3.05 2.15  7 2.51  31-1  9 3 34.56  0.0          0.0       30.30  21 29.59  17        2400
GSP 11.12  +7.15 4.00  7 4.87   7-8  9 4 36.68  0.0          0.0  9.3  30.35  21 29.52  28        2400
OGB  5.73        3.13 27 3.15 27-28 10 2 35.35  0.0          0.0                                  2400
NEARBY STATIONS
[Reminder: All NWS DATA HEREIN IS NOT OFFICIAL]
STN  T      T1     U  U1   V      V1   W X   Y     Z   1  2 3  4     5    6   6A   7   7A    8     S
------------------------------------------------------------------------------------------------------
TRI  6.01  +2.93 2.37 17 3.10 16-17  8 2 38.04  0.0           0.0  15.6                           2400
DAV  6.33        1.84  9            11 3 51.43  0.0           0.0 197.9                           1900

Virginia:

Annandale - Lowell notes: " September was warmer than average and near average in rainfall with above average humidity and cloudiness. Only seven years of the last 24 years had more days with measurable rain. The maximum temperature for September was 82 on the 13th, 22nd, and 23rd which was a -6.5 departure. This is the lowest maximum temperature ever recorded for September in the last 24 years except for 1992 when 82 was also recorded. Only three years in the last 24 years have we had a September maximum temperature that wasn't at least 85. September's mean average temperature however was 69.0 which was a + 1.3 departure. The average maximum temperature had a departure of +0.4 and the average minimum had a departure of +2.2. The higher than average cloud cover and humidity of September made the nights warmer and the days cooler. The highest mean daily temperature for September was 74.5 on the 8th and 17th which was the lowest maximum daily mean temperature ever recorded for September in the last 24 years. The previous record was 75.0 recorded in 2001. The highest temperature for 2004 is only 92 on July 5th and July 14th. This is the lowest maximum ever recorded in the 24 years of records at this station. September's average temperature range was 15.3 the eighth lowest in the last 24-years due to the cloudiness and humid conditions of this September. The maximum wind gust of 30 mph from the west occurred on the 18th at 1454. It is interesting that this is the same day Isabel gave us 41 mph winds last year! The lowest barometer was 29.52" which was recorded as the remnants of Hurricane Ivan passed to our south on the 18th. The highest barometer 30.43" occurred on the 20th and was the highest recorded in September since 2000. We had the remnants of three hurricanes pass Virginia this month Frances, Ivan, and Jeanne but only Jeanne set a record at this station for the most rain for September 28th in the last 24 years. Daily records set (24-Years of records): LOW minimum temperature record: 20; LOW range record: September - 15; HIGH precipitation record: 28. " [ + +/- ] 

Arlington - NWS LWX's Strong reports: " ON THE 28TH...A RECORD RAINFALL OF 2.46 INCHES WAS SET AT WASHINGTON NATIONAL AIRPORT. THAT BROKE THE OLD RECORD OF 1.69 SET IN 1907. SUMMARY SEPTEMBER WAS A WILD WEATHER MONTH WITH SEVERAL HURRICANE REMNANTS PASSING OVER THE REGION...ONE OF WHICH PRODUCED A MAJOR MID ATLANTIC TORNADO OUTBREAK. FOR TEMPERATURES...SEPTEMBER 2004 NEVER WAS VERY HOT...BUT ON THE OTHER HAND IT NEVER REALLY COOLED OFF VERY MUCH FROM THE SUMMER EITHER. IN THE END IT WAS SLIGHTLY WARMER THAN NORMAL WITH THE MONTHLY TOTAL ABOUT ONE DEGREE WARMER THAN NORMAL. WITH NO DAYS IN THE 90S IN SEPTEMBER...THIS SUMMER WILL BE NOTED AS THE SUMMER THAT TIED THE LOWEST MAXIMUM TEMPERATURE FOR THE YEAR. 92 DEGREES WAS THE WARMEST IT EVER GOT THIS SUMMER...WHICH TIES 1886 AS THE ONLY YEAR TO NOT MAKE IT AT LEAST INTO THE MIDDLE 90S IN WASHINGTON. THE TWO BIGGEST WEATHER EVENTS OF THE MONTH WERE THE REMNANTS OF HURRICANE IVAN AND THE REMNANTS OF HURRICANE JEANNE. IVAN MADE LANDFALL IN ALABAMA AND RODE NORTH...REACHING THE MID ATLANTIC ON FRIDAY SEPTEMBER 17TH. WHILE THE AXIS OF HEAVY RAIN REMAINED TO OUR NORTH...FLOODING MOST OF PENNSYLVANIA...TORNADOES BECAME THE THREAT FOR THE WASHINGTON METRO AREA. NEARLY A DOZEN TORNADOES...SOME OF WHICH TRACKED OVER FIFTY MILES...WERE PRODUCED SOUTH AND WEST OF THE DISTRICT THAT LATE AFTERNOON. JEANNE MADE LANDFALL IN EASTERN FLORIDA AND MOVED EAST AGAIN TOWARDS THE MID ATLANTIC. RAIN AND FLOODING BECAME THE THREAT WITH JEANNE ON THE 28TH. ALTHOUGH IT WAS MOVING QUICKER THAN IVAN IT STILL LEFT BETWEEN TWO AND FIVE INCHES OF RAIN AROUND WASHINGTON AND THE SURROUNDING AREA. WASHINGTON NATIONAL/S TWO AND A HALF INCHES SET A DAILY RAINFALL RECORD FOR THAT DAY. SCORES OF ROADS WERE CLOSED THAT AFTERNOON AND EVENING DUE TO FLOODING...MAINLY TO THE WEST OF TOWN. RAINFALL FOR THE MONTH AT THE AIRPORT ENDED UP CLOSE TO NORMAL IN SEPTEMBER. THE WEATHER PATTERN FOR THE MONTH SEEMED TO BE LONG STRETCHES OF SETTLED DRY WEATHER PUNCTUATED BY REMNANTS OF HURRICANES. " - [ - + ] "

Bridgewater - " There were three hurricane-related storms with heavy rain during September. Precipitation was 4.9" above normal. Precipitation for the year is now 4.41" above normal. The temperature was 2.5 above normal. There were no thunderstorms during the month. " - [ + + ] 

Centreville - " ACON Sep 2004 With hurricane headlines coming out of the south so frequently during September, Northern Virginia also wound up being front page news for a while as well. During the late afternoon of Friday, September 17th, the National Weather Service (NWS) at Sterling (LWX) began issuing, what turned out to be, a lengthy string of over 100 warnings for tornadoes, severe thunderstorms, and flash floods. The NWS later verified in their report that there were 17 confirmed tornadoes that damaged nearly 200 homes in Northern Virginia. Forty of those damaged or destroyed were in Centreville according to our local newspaper, The CentreView. A funnel cloud was observed 100-200 feet from the house, but I was already too busy with laundry to confirm the sighting.

Temperatures for September remained generally pleasant with the highest reading getting to 85 on both the first and the 23rd. Our average daily high for the month came in at just 0.3 under the 79.0 normal while the overall average for September worked out to be 70.4, or 3.9 above the 66.5 normal. This leads us to believe that once again the nightly lows were up to high antics. With the month of May this year coming in with plus 12.3 deviation degrees, September placed in the number two slot with 8.1 above the 53.9 normal low for a 62.0 entry in our log book. This reminds me that the September `04 issue of National Geographic Magazine presented an interesting feature article about global warming. Precipitation totaled 182% of normal, well under the 3.47" expected for September. Wow! I never saw my Microsoft Office Assistant do a back flip before. Being over and under simultaneously is fairly easy to explain though. Hurricanes Frances (Sep 8 - 1.47"), Ivan (Sep 17, 18 - 1.89"), and Jeanne (Sep 28 - 2.45") dumped a combined accumulation of 5.81" on us. Of the 6.34" total precipitation received for the month, the remaining 0.53" can be counted as normal rainfall at other times. Disregarding the hurricane rain, minus 0.53" of normal rainfall, leaves nearly three inches of water that didn't fall that should have to reach the 3.47" normal. This is not to say that it may have rained during the days when we were feeling the effects of the hurricanes, but 2.94" is still a lot of water to pull out of the sky otherwise, just to achieve the monthly average. Lots of rain, sure, but very little precipitation from a climatic standpoint. So, with 6.34" actually in the bucket for September, we have broken out of negative territory for the year with a " surplus, but for some at quite a price. " - notes from Paul [ + + ] 

Falls Church - " A wetter than average month due to the remnants of 3 hurricanes (Frances, Ivan and Jeanne). Both Ivan and Jeanne brought over and inch of rain for me. Ivan brought my highest wind gust for the month at 32 mph and also some fierce lightning which struck very close to my house 2-3 times. " - notes from Erica [ M + ] 

Herndon - Bob notes:" My average MAX temperature was 2.4 BELOW the Dulles "normal" and the average MIN was 4.4 ABOVE. Calendar year precip is about 2 inches above the Dulles "normal." Dulles is 4 miles WSW and it's "normal" is the 1971-2000 average. " - [ + + ] 

Herndon - Russ send these notes:" September temperatures averaged close to normal. Rainfall was above average, thanks to the remnants of Ivan and Jeanne. The monthly temperature was 0.1 above average and precipitation was 1.87" above average. Thunderstorms passed through on the 8th, 17th, and 28th. With the remnants of Ivan passing through on the 17th, feeder bands spawned a tornado outbreak across our region. One tornado partially destroyed a home in Chantilly, within 6 miles of my location. " - [ + + ] 

Lexington - notes from Scott: " Scott has left WREL in Lexington and now is focusing his attention on his new web site, Mid-Atlantic Wxr.com found at http://www.midatlanticwx.com/. Here you can still find his popular hurricane model map as well as local conditions - and more -for Lexington. "

Norfolk - from NWS AKQ: " MONTHLY PRECIPITATION TOTALLED JUST 3.30 INCHES...SLIGHTLY BELOW THE NORMAL AMOUNT OF 4.06 INCHES. YEARLY PRECIPITATION THROUGH THE END OF SEPTEMBER IS 43.15 INCHES. (NORMAL JAN THROUGH SEP IS 36.26") - MOST IS 59.84" IN 1889. THE AVERAGE TEMPERATURE FOR THE MONTH WAS 72.6 F...VERY CLOSE TO NORMAL. " - [ - - ]

Portsmouth - " The tropical connection continued with yet two more systems with remnants moving close to the area. On the 17th, the remnants of Hurricane Ivan moved from western VA the looped SE across the Chesapeake Bay then oddly headed south crossing FL and eventually across the Gulf of Mexico on its way to eastern TX. Station records for September included: 2ND - TEMPERATURE MINIMUM TIED - 63 [PREVIOUSLY IN 1987] 17TH - TEMPERATURE MAXIMUM MINIMUM TIED - 74 [[PREVIOUSLY 1980] 17TH - WIND GUST MAXIMUM - 30 MPH [PREVIOUSLY 29 MPH 1990] 19TH - TEMPERATURE MINIMUM MAXIMUM [PREVIOUSLY 69 IN 1981] 21ST - TEMPERATURE MINIMUM 53 [PREVIOUSLY 54 IN 1981] 28TH - WIND GUST MAXIMUM - 32 MPH [PREVIOUSLY 28 MPH 1996] For the year, rainfall was 2.85" above normal (108%) and the annual temp average was 0.3 above normal. " - [ - + ] 

Richmond - NWS AKQ reports: " MONTHLY PRECIPITATION TOTAL OF 6.14 INCHES MAKES THIS THE 4TH CONSECUTIVE MONTH OF ABOVE NORMAL PRECIPITATION AT RICHMOND AND RANKS AS THE 18TH WETTEST SEPTEMBER ON RECORD. THE YEARLY TOTAL THROUGH THE END OF SEPTEMBER IS 50.79 INCHES AND THIS RANKS AS THE 4TH WETTEST JANUARY THROUGH SEPTEMBER PERIOD ON RECORD. (NORMAL IS 34.13") - MOST IS 61.71" IN 1889. THE AVERAGE TEMPERATURE OF 71.6 F WAS SLIGHTLY ABOVE NORMAL...BUT NO RECORD HIGHS OR LOWS WERE SET. " - [ + + ]

Roanoke - Wendell notes:" I have just had my wettest month ever at 15.20" with all by 0.51" coming from what was once Hurricanes Frances, Ivan, and The average temperature was 0.8 ABOVE normal. " - [ + +]

Ruther Glen - Danny sends these notes: " Another month with huge rainfall totals! The deficit established early in the year has now been more than made up, with yearly precipitation now 1.53" above normal. The tropical influence in this month's weather is evident not only in the high rainfall totals, but also in the vast pressure difference that led to the month's maximum and minimum barometric pressure occurring within 48 hours of each other. Temperatures finished very slightly below normal. " - [ - + ]

North Carolina:

Cape Hatteras - The average temperature in September 2004 was 75.5. This was 0.3 warmer than the 1895-2004 average, the 47th warmest September on record (1895-2004). 2.89" of precipitation fell in September. This was -2.50" less than the 1895-2004 average, the 30th driest such month on record (1895-2004). - [ + - ]

Raleigh - NWS Raleigh (RAH) reports: Here are excerpts from the September climate summary from NWS RAH: "September is often known as the most active month during the Atlantic hurricane season. After four tropical systems impacted North Carolina in August, many North Carolinians kept a weary eye on the tropics. By the end of September, 3 additional tropical systems (the remnants of Hurricanes Frances, Ivan, and Jeanne) impacted the state, bringing the season total to a remarkable seven. Flooding rains, damaging winds, tornadoes, and extended periods of cloudy and muggy weather became a recurring theme throughout September, which hopefully brought the unforgettable 2004 Hurricane Season to an end for residents along the Atlantic Ocean and Gulf Coast. The track of the tropical systems and their remnants frequently brought the heaviest rain across western sections of North Carolina, particularly across the North Carolina Mountains. Monthly rainfall totals exceeded 10 inches across much of the western third of the state, with as much as 27 inches of rain observed at Mount Mitchell and Lake Toxaway. The wettest conditions in September were found over the elevated terrain of western North Carolina. Overall, monthly temperatures averaged very close to the 30 year normal across much of the state. " The full September 2004 NC Weather Review is available at: http://www.erh.noaa.gov/rah/climate/data/MonthlySummary.Sep.2004.doc. " -

Nearby Cities:

Tri-Cities - " Tri-Cities received 6.01 inches of rain in September, which was 2.93 inches above normal. It ranked as the 4th wettest September on record at Tri-Cities. Measurable rain occurred on only eight days, but two of those days had more than one inch. The heaviest rain fell on the 17th when 2.37 inches was recorded, which broke the old daily rainfall record of 1.43 inches set in 1988. Another daily rainfall record was broken on the 8th, when 0.89 inches of rain fell surpassing the previous record of 0.60 inches set in 1998. The wettest September at Tri-Cities was back in 1972, when 7.09 inches fell. The average monthly temperature at Tri-Cities was 67.8, which was 1.2 above normal. No daily records were broken. The warmest September at Tri-Cities was back in 1970, when the average temperature was 72.9. " - from NWS MRX [ + + ] 

COLUMN DENOTATIONS:

A  maximum mean temperature T total precipitation (inches)
T1 departure from normal
B  minimum mean temperature U maximum calendar day precipitation (inches)
C  monthly mean temperature
C1 departure from normal
U1 date of maximum calendar day precipitation
D  maximum temperature V date(s) of maximum daily precipitation
E  date(s) of maximum temperature V1 maximum 24-hour precip. & date(s)
F  minimum temperature W number of days with precip. >= .01"
G  date(s) of minimum temperature  X number of days with precip. >= 1.0"
H  days with maximum temperature >=90 Y year-to-date precipitation (inches)
I  days with maximum temperature <=32 Z maximum calendar day snowfall (inches)
J  days with minimum temperature <=32  
K  days with minimum temperature <= 0 1 date of maximum calendar day snowfall (inches)
K1 average relative humidity 2 number of days with snowfall
L  peak wind gust (miles per hour)  3 number of days with snowfall >= 1.0"
M  direction of peak wind gust 4  total snowfall for month (inches)
N  date(s) of peak wind gust  5 total snowfall for 2003-2004 season (inches)
N1   average wind speed (miles per hour) 6 maximum barometric pressure (inches)
N2 dominant wind direction 6A date of maximum barometric pressure
O  number of days with thunder  7 minimum barometric pressure (inches)
P  number of days with hail 7A date of minimum barometric pressure
Q  number of days with glaze 8   average sea-level pressure
R  number of days with ice pellets  
R2 sky cover percentage NR not recorded
R1 number of days with dense fog [1/4 mile and less visibility] (i) incomplete data
S  local observation time for temps/precipitation (M) missing, if listed in data table
 ~ "about" E estimated
 +  additional indeterminate number of days CWA - NWS Office County Warning Area


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National Weather Service Web Sites & Current Email Addresses
Within or Nearby the ACON VA/NC/SC Area Can Be Found At:

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     NWS Wakefield, VA
     NWS Blacksburg, VA
     NWS Raleigh, NC
     NWS Newport/Morehead City, NC
     NWS Wilmington, NC
     NWS Greenville-Spartanburg, SC
     NWS Columbia, SC
     NWS Charleston, SC
     NWS Morristown, TN

     National Weather Service Homepages

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STATION / LOCATION (MILES & DIRECTION FROM MAIN POST OFFICE)/OBSERVER / YEAR RECORDS BEGAN / EMAIL ADDRESS:

  ROK   Roanoke, VA 6SW Wendell Prillaman  4/76 wlprillaman@cox.net
ANN    Annandale, VA 1 3/4 ENE - Lowell Koontz  8/31/79  wwkoontz@verizon.net AKQ    Wakefield, VA NWS Wakefield Municipal Airport 36-58-53N 077-00-04W 33M
DCA    Arlington, VA Washington, DC, Reagan Washington National Airport 38-50-54N 077-02-03W 18M WSH   Washington, VA  David Yowell runamok@runamok.com
BCB    Blacksburg, VA NWS Virginia Tech Airport 37-13N 080-25W WEE   Weems, VA 3WNW Francis J. Socey
BRI     Bridgewater, VA Clayton Towers Ctowers@rica.net WOO  Woodstock, VA 5NW Lauck Walton - 12/1/85 jwalton@shentel.net
CEN   Centreville, VA Paul Bassett 1985 m.psb@verizon.net    Ruther Glen, VA 380'45" N 7732'29" W Danny Jessee 2003 danny@dannyjessee.com
   WAL   Wallops Island, VA 37 56'26" N 75 27'47" W Wallops Flight Facility Airport
CHO   Charlottesville, VA  Charlottesville-Albemarle Airport ASOS  (Rappahannock County) 38-08-18N 078-27-21W 192M AVL    Asheville, NC  Asheville Regional Airport 35-25-55N 082-32-15W 670M
   MRH    Beaufort, NC  Michael J. Field Airport 34-44-01N 076-39-38W 3M
DAN  Danville, VA, Danville Regional Airport, 36-34-22N 079-20-10W 175M  BRE    Brevard, NC 1SE Bob Keehn 1/1/90 rkeehn@brinet.com
IAD   Dulles - Washington-Dulles International Airport  38-56-05N 077-26-51W 93M  CLT    Charlotte, NC NWS Charlotte/Douglas International Airpot 35-12-48N 080-56-55W 220M
FCH    Falls Church, VA Erica Page - 3/7/94 Windie1970@aol.com HKY  Hickory, NC 
HAM    Hampton, VA 5NE Dave Kessel 1989 davidckessel@cox.net ECG  Elizabeth City, NC,  Coast Guard Air Station 36-15-47N 076-10-58W 11M
CTR  Chesterfield, VA Albert Arnold 06/03 FAY  Fayetteville, NC Fayetteville Regional Airport, 34-59-22N 078-52-48W 55M
HER    Herndon, VA R.M. Beall P- 10/76   T-  1/91 beall47@earthlink.net GSO   Greensboro, NC NWS Piedmont Triad International Airport 36-05-51N 079-56-37W 275M
   HSE    Cape Hatteras, NC  Mitchell Field 35-13-56N 075-27-21W 3M
HRN   Herndon, VA 4SW Russ Topping -  1985 weatherwatcher@cox.net LBT    Lumberton, NC  Lumberton Municipal Airport 34-36-26N 079-03-36W 37M
   EWN    New Bern, NC  Craven County Regional Airport 36-04-03N 077-02-50W 3M
LXI     Lexington, VA  Scott M. Lancey, WREL Radio -  06/96 weather@wrel.com RAL    Raleigh, NC 7NNW  Bob Woodson -  6/1/93 kf4mmm@qsl.net
LKU     Louisa, VA 1N Joseph Bowers 1944 - NWS ID  44-5050-02jmbiii@earthlink.net RDU   Raleigh-Durham, NC Raleigh-Durham International Airport 35-52-14N 078-47-11W 130M
LOU     Louisa, VA 6S John Bullock (about 1970) INACTIVE 1/1/02 ROX    Roxboro, NC 2SE Merriell A. Jay 1/93
LYH     Lynchburg, VA NWS Lynchburg Regional Airport 37-19-15N 079-12-24W 295M ILM     Wilmington, NC NWS New Hanover International Airport 34-16-06N 077-54-22W 9M
NEW    Newmarket, VA 2W Joyce Winfree joywood@shentel.net CHS   Charleston, SC NWS Charleston Air Force Base 32-53-56N 080-02-26W 13M
NPN     Newport News, VA 7N Gary Leonard -  6/91 GaryMLeonard@aol.com CAE    Columbia, SC NWS Columbia Metropolitan Airport 33-56-31N 081-07-05W 73M 
NOR     Norfolk, VA 3NE Jim Fentress 6/1/77 FLO    Florence, SC Florence Regional Airport 34-11-16N 079-43-51W 44M
ORF     Norfolk, VA 5NE 36-54-13N 076-11-31W 14M  1871 GSP   Greenville-Spartanburg, SC NWS Greenville-Spartanburg Airport 34-53-02N 082-13-15W 286M 
POR     Portsmouth, VA 36.81° North 76.33° West 3S Bill Trotter -  7/1/76 wxr@cox.net CRE    North Myrtle Beach, SC Grand Strand Airport 33-48-42N 078-43-26W 10M
MEC     Mechanicsville, VA Glen Martin 11/19/91 OGB   Orangeburg, SC  Orangeburg Municipal Airport 33-27-50N 080-51-13W 59M
FHC    Norfolk, VA  Fred Heutte Center 36° 54'N 76° 16'W 01/01/03 fhcgarden@cox.net AND   Anderson, SC 
RIC     Richmond, VA Richmond International Airport 37-30-40N 077-19-24W 50M TRI     Tri-cities, TN  (Bristol / Johnson / Kingsport), Tri-City Regional Airport 36-28-47N 082-23-56W 474M 
ROA    Roanoke, VA Roanoke Regional Airport 37-19-01N 079-58-27W 362M DAV  Davis, WV Dave Lesher wvweather@mountain.net