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 - 63ø [PREVIOUSLY IN 1987]
17TH - TEMPERATURE MAXIMUM MINIMUM TIED - 74ø [[PREVIOUSLY 1980]
17TH - WIND GUST MAXIMUM - 30 MPH [PREVIOUSLY 29 MPH 1990]
19TH - TEMPERATURE MINIMUM MAXIMUM [PREVIOUSLY 69ø IN 1981]
21ST - TEMPERATURE MINIMUM 53ø [PREVIOUSLY 54ø 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 |
For ACON
VA/NC/SC Recent Weather News, Search CNN
http://www.cnn.com/WEATHER
National
Weather Service Web Sites & Current Email Addresses
Within or
Nearby the ACON VA/NC/SC Area Can Be Found At:
NWS Washington/Baltimore,
VA/MD
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
$$$ National Climatic Data
Center, Asheville, NC $$$
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 38°0'45" N
77°32'29" 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 |
|