The Atlantic Coast Observer Network - Virginia/North Carolina/South Carolina

http://www.genserva.com/acon

SUMMARY OF CLIMATOLOGICAL DATA 


AUGUST 2015


...TEMPERATURES AVERAGE NEAR NORMAL...

...RAINFALL:
VIRGINIA AVERAGE IS WELL-BELOW NORMAL,
NORTH CAROLINA AVERAGE IS BELOW NORMAL,
SOUTH CAROLINA AVERAGE IS ABOVE NORMAL...




  • Observing Precipitation with NEXRAD Radar   Radar is an acronym meaning Radio Detection and Ranging. During its initial development in WW II, weather was treated as "clutter", a problem that kept radar operators from seeing enemy targets. Shortly after the end of the war, scientists realized the great benefit of using radar to study storms. The radar displayed previously unseen patterns of storm growth and structure. Doppler capabilities allowed for the detection of tornados and downbursts. Radar also showed its utility in estimating precipitation.

    The traditional way of turning radar measurements into rainfall data is to relate the power returned from the cloud to the radar (meteorologists refer to this as the "radar reflectivity") to some estimate of rain intensity measured on the ground. Once this so called Z-R relationship is determined, the radar data can be converted directly to rainfall over the entire coverage region of the radar. Usually, the rainfall estimates in the Z-R relationship come from rain gauge networks, like CoCoRaHS.

    The great benefit of using radar is that it can estimate rainfall over a huge area, including most places where there are no rain gauges. However, it turns out that using radar to estimate rainfall is much more difficult than one might think for a number of reasons:
    ->1. The radar reflectivity and rainfall relationship is not unique, it changes constantly within a storm, among different types of storms, and from place to place.
    ->2. The radar looks within the cloud while the gauge is at the ground. The difference in height between where the radar is looking and the gauge can be thousands of feet. A lot can happen to those drops as they fall out of the cloud: some might evaporate and others might be blown far downwind from where the radar is looking.
    ->3. The radar beam might be blocked by hills, trees or building and might not be able to see the cloud producing the rain.
    ->4. The radar volume at all ranges is very much larger than the sample volume of a 4" rain gauge on the ground. This large volume may have a variety of reflectors - i.e. snow, hail, raindrops and cloud drops, all of which contribute to the reflectivity but which have very different water contents.

    More information and links to information on radar and rainfall can be found on the CoCoRaHS web site. And don't forget to view Pat Kennedy's 2013 WxTalk Webinar on Radar at https://www.youtube.com/watch?v=fRp0F5Knr6s&list=PLDDC91E3A979406CE&index=5.




  • Katrina Sparked Push To Improve Hurricane Forecasting   Kevin Shaw of ACON DC/MD/DE forwards a link to this NPR broadcast and transcript. Listen to the broadcast and read the transcript with a click here.

  • NWS AKQ Monthly Rainfall Analysis      From NWS Wakefield compiled from ASOS...COOP...RAWS REPORTS | Monthly Rainfall Analysis - http://www.weather.gov/akq/MONTHLY_RAINFALL_ANALYSIS -


  • TRACK AUGUST 2015 NWS STORM REPORTS FOR YOUR STATE   The Storm Prediction Center archives reports of severe weather - tornado, wind, hail - to the National Weather Service To view these reports, start here with a click to August 1, 2105. While visiting, you will learn how to navigate the daily reports using forward and backward navigation arrows ( < > ) or by replacing the date in your browser's URL line with a date you wish to view. For starters, click here for August 2015 reports: http://www.spc.noaa.gov/climo/reports/150801_rpts.html




    Visit the interactive FACEBOOK home of the National Weather Service Office (KRAH)
    Raleigh, North Carolina with a click to the image above!


  •    DROUGHT MONITOR       Information on drought can be found at NOAA's Drought Information Center          http://droughtmonitor.unl.edu/

  • 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 be used for these purposes.


  • ACON VA/NC/SC Station Extremes - AUGUST 2015

    State
    Maximum Temperature
    Minimum
    Temperature
    Warmest
    Average
    Temperature
    Coldest
    Average
    Temperature
    Maximum
    Precipitation
    Minimum
    Precipitation
    Virginia
    96
    Washington, DC/Arlington
    Chantilly
    Newport News
    Norfolk (FHC)
    Richmond
    52
    Blacksburg
    79.3
    Washington, DC/Arlington
    71.0
    Blacksburg
    4.09"
    Blacksburg
    0.70"
    Herndon
    North Carolina
    101
    Fayetteville
    56
    Raleigh (RAL)
    80.6
    Lumberton
    73.8
    Asheville
    9.10"
    Beaufort
    2.45"
    Elizabeth City
    South Carolina
    102
    Columbia
    62
    Columbia
    Greenville-Spartanburg
    82.6
    Columbia
    79.0
    Anderson
    12.45"
    Downtown Charleston
    2.41"
    Greenville-Spartanburg


    ( For an explanation of column headers in the following tables,
    please note the column denotations table below. )


    TEMPERATURE / WINDS/ ELEMENTS FOLLOWED BY
    PRECIPITATION / BAROMETRIC PRESSURE

    VIRGINIA | NORTH CAROLINA | SOUTH CAROLINA
    [Reminder: All NWS DATA HEREIN IS NOT OFFICIAL]
    STATION A B C C1 D E F G H I J K K1 L M N N1 N2 O P Q R R1 CWA TIME RECORDED
    BCB 81.9 60.1 71.0 1.0 88 5 52 26 0 0 0 0 78% 22 310 11 2.4 5 0 0 0 6 LWX 2400
    CHT 87.3 65.7 76.5 1.1 95.9 17 57.1 14 9 0 0 0 72% 13 158,068 3,19 0.2 180 3 0 0 0 0 LWX 2400
    CHO 85.2 64.5 74.9 0.9 93 17 56 14 5 0 0 0 27 190 18 3.7 3 0 0 0 1 LWX 2400
    DAN 87.0 66.0 76.5 -0.5 95 5 59 28,29 8 0 0 0 71% 33 290 5 3.5 4 0 0 0 0 RNK 2400
    DCA 88.0 70.5 79.3 1.2 96 4,17 63 27 12 0 0 0 61% 38 270 24 7.6 2 0 0 0 0 LWX 2400
    IAD 85.4 63.8 74.6 -0.8 94 17 53 14 4 0 0 0 68% 32 330 4 5.3 4 0 0 0 0 LWX 2400
    GAV 86.59 66.15 76.37 -0.92 94 4 59 28 7 0 0 0 72% 23 180 4 3 0 0 0 0 AKQ 2400
    HDV 84.8 64.1 74.5 -1.5 93 17 55 27 3 0 0 0 72% 14 90 21 270 4 0 0 0 0 LWX 2400
    LYH 84.3 62.6 73.4 -0.7 92 4 56 2 3 0 0 0 73% 35 160 19 3.7 5 0 0 0 2 RNK 2400
    NPN 87.2 68.0 77.0 -1.0 95.9 4 59.1 15 8 0 0 0 24 68 8 2.1 68 5 0 0 0 0 AKQ 2400
    FHC 86.3 70.7 78.5 1.0 96 4 65 29 9 0 0 0 72% 30 50 8 2.8 50 1 0 0 0 0 AKQ 2400
    NOR 84.8 68.3 76.6 -0.9 93 4 60 29 7 0 0 0 26 30 8 0 0 0 0 0 AKQ 2400
    ORF 85.5 71.1 78.3 0.4 94 20 64 16,29 7 0 0 0 67% 35 40 8 7.6 0 0 0 0 0 AKQ 2400
    POR 86.5 69.6 78.0 -0.3 94 4 62 15,29 9 0 0 0 77% 30 50 8 3.9 42 2 0 0 0 0 AKQ 2400
    CTR 85.7 64.5 75.1 -1.0 92.5 4 56 23 7 0 0 0 82% 19 270 6 0.2 153 3 0 0 0 0 AKQ 2400
    MEC 84.8 65.1 75.4 94 4 57 28 2 0 0 0 59% 14 270 11 3.5 4 0 0 0 0 AKQ 2400
    RIC 87.6 67.4 77.5 0.0 96 4 61 28 10 0 0 0 68% 33 270 6 5.5 5 0 0 0 0 AKQ 2400
    ROA 85.4 65.3 75.3 -0.1 93 4,5 56 26 4 0 0 0 69% 42 290 11 4.9 4 0 0 0 0 RNK 2400
    SVC 84.2 65.9 75.0 -1.2 91 4 58 14 6 0 0 0 1 0 0 0 0 LWX 2400
    WAL 83.8 67.6 75.7 0.2 92 4 59 29 2 0 0 0 33 40 8 7.6 3 0 0 0 0 AKQ 2400
    WSH 81.8 63.3 72.6 -1.33 90.5 17 57.3 27 1 0 0 0 83% 11 158 21 0.1 180 1 0 0 0 0 LWX 2400
    Averages 85.44 66.20 75.81 -0.22 93.47 58.31 5.9 0.0 0.0 0.0 71% 26.7 4.0 3.0 0.0 0.0 0.0 0.4
    STATION A B C C1 D E F G H I J K K1 L M N N1 N2 O P Q R R1 CWA TIME RECORDED
    STATION A B C C1 D E F G H I J K K1 L M N N1 N2 O P Q R R1 CWA TIME RECORDED
    AVL 84.1 63.5 73.8 0.9 92 4 57 2,28 3 0 0 0 68% 29 240 4 4.9 10 0 0 0 3 GSP 2400
    MRH 83.6 71.5 77.5 -1.3 87 5,21 65 16 0 0 0 0 38 210 3 7.6 0 0 0 0 1 MHX 2400
    CLT 90.4 68.5 79.5 2.2 99 4,5 59 29 19 0 0 0 63% 36 350 11 5.5 8 0 0 0 0 GSP 2400
    ECG 86.2 68.3 77.3 -0.3 94 5,6 59 15 6 0 0 0 75% 47 210 4 6.9 7 0 0 0 1 AKQ 2400
    FAY 89.7 69.5 79.6 0.0 101 5 61 29 15 0 0 0 71% 40 250 6 5.5 7 0 0 0 2 RAH 2400
    GSO 86.7 68.1 77.4 0.3 96 4,5 62 28 8 0 0 0 69% 36 210 5 5.0 6 0 0 0 0 RAH 2400
    HSE 84.6 72.8 78.7 0.2 90 25 65 16 1 0 0 0 77% 39 320 27 7.2 MHX 2400
    HKY 87.9 66.9 77.4 1.0 98 5 61 28 10 0 0 0 32 260 19 3.3 7 0 0 0 3 GSP 2400
    LBT 91.1 70.1 80.6 1.6 99 5,6 63 29 19 0 0 0 70% 38 300 6 4.6 8 0 0 0 1 ILM 2400
    EWN 87.6 69.8 78.7 -0.4 96 5 65 15,16 7 0 0 0 73% 33 210 6 4.9 7 0 0 0 2 MHX 2400
    RDU 88.3 67.6 77.9 -0.6 97 5 60 28,29 11 0 0 0 69% 32 330 11 4.2 4 0 0 0 1 RAH 2400
    RAL 87.5 65.3 76.4 -2.1 97 5 56 28 9 0 0 0 33 6 2 0 0 0 0 RAH 2400
    WHI 90.3 68.8 79.6 1.2 98.0 1 61.2 29 16 0 0 0 73% 21 206 19 1.3 109 8 0 0 0 0 ILM 2400
    ILM 87.5 70.9 79.2 -0.5 96 5 66 23,29 6 0 0 0 74% 43 230 6 5.6 12 0 0 0 0 ILM 2400
    Averages 87.54 68.69 78.11 0.2 95.7 61.4 9.3 0.0 0.0 0.0 71% 35.5 5.1 6.6 0.0 0.0 0.0 1.1
    STATION A B C C1 D E F G H I J K K1 L M N N1 N2 O P Q R R1 CWA TIME RECORDED
    STATION A B C C1 D E F G H I J K K1 L M N N1 N2 O P Q R R1 CWA TIME RECORDED
    AND 88.7 69.3 79.0 0.5 100 5 63 31 10 0 0 0 49 230 10 4.5 8 0 0 0 1 GSP 2400
    CAE 92.9 72.2 82.6 1.8 102 4 62 29 28 0 0 0 64% 29 280 5 5.0 4 0 0 0 0 CAE 2400
    CRE 86.5 71.9 79.2 0.3 90 5,22 67 23,29 2 0 0 0 78% 38 220 6 6.7 9 0 0 0 3 ILM 2400
    CHS 89.3 73.2 81.3 0.4 94 21,25 69 16 15 0 0 0 40 290 6 6.3 11 0 0 0 1 CHS 2400
    CXM 86.4 76.2 81.3 0.0 90 20,21 72 28 2 0 0 0 32 190 31 6.7 1 CHS 2400
    FLO 90.3 71.3 80.8 0.9 98 5 65 29 20 0 0 0 72% 64 140 5 5.4 7 0 0 0 2 ILM 2400
    GSP 89.4 68.8 79.1 0.5 99 4 62 31 15 0 0 0 68% 45 270 5 4.6 8 0 0 0 0 GSP 2400
    OGB 91.1 71.3 81.2 1.0 98 4,5 65 15,29 22 0 0 0 36 20 6 4.7 7 0 0 0 3 CAE 2400
    Averages 89.33 71.78 80.56 0.7 96.38 48.0 14.3 0.0 0.0 0.0 71% 41.6 5.5 6.9 0.0 0.0 0.0 1.4
    STATION A B C C1 D E F G H I J K K1 L M N N1 N2 O P Q R R1 CWA TIME RECORDED
    STATION A B C C1 D E F G H I J K K1 L M N N1 N2 O P Q R R1 CWA TIME RECORDED
    TRI 85.7 62.7 74.2 0.4 93 4 55 26 3 0 0 0 37 220 5 2.5 8 0 0 0 5 MRX 2400
    DAV 72.8 53.5 63.1 80 16,18 46 13,14,26 0 0 0 0 PBX 2400
    STATION T T1 U U1 V V1 W X Y Z 1 2 3 4 5 6 6A 7 7A 8 CWA TIME RECORDED
    BCB 4.09 0.50 1.83 10 1.83 10 13 1 25.97 0.0 28.4 RNK 2400
    CHT 1.20 -2.33 0.47 20 0.66 19-20 8 0 27.38 0.0 27.9 30.204 28 29.723 11 29.980 LWX 2400
    CHO 2.43 -1.19 1.57 19 1.57 19 6 1 27.33 29.750 11 LWX 2400
    DAN 3.06 -0.91 1.60 6 1.64 6-7 9 1 28.30 0.0 5.1 30.230 29 29.760 7 29.995 RNK 2400
    DCA 1.16 -1.77 0.41 24 0.45 10-11 6 0 32.89 0.0 18.1 29.750 11 LWX 2400
    IAD 1.09 -2.44 0.41 20 0.57 19-20 8 0 27.28 0.0 36.9 30.220 28 29.740 11 29.980 LWX 2400
    GAV 1.83 0.61 0.61 11 0.92 10-11 8 0 30.90 0.0 14.7 30.250 29 29.780 11 30.010 AKQ 2400
    HDV 0.70 -3.19 0.27 10 9 0 30.60 0.0 28.2 30.190 14 29.720 11 29.955 AKQ 2400
    LYH 1.98 -1.28 0.88 10 0.88 10 8 0 24.74 0.0 22.9 30.240 29 29.800 11 30.020 RNK 2400
    NPN 1.29 -4.74 0.73 11 0.73 11 5 0 33.01 0.0 16.5 30.230 29 29.770 7 30.000 AKQ 2400
    FHC 1.51 -4.26 0.54 7 0.77 6-7 8 0 38.42 0.0 12.5 30.238 29 29.785 7 29.996 AKQ 2400
    NOR 0.94 -4.83 0.25 11 0.28 7-8 7 0 30.66 0.0 12.8 AKQ 2400
    ORF 1.85 -3.67 0.52 20 0.98 20-21 7 0 33.12 0.0 12.7 30.240 29 29.780 7 30.010 AKQ 2400
    POR 1.64 -4.00 0.53 7 0.74 6-7 6 0 33.55 0.0 13.5 30.210 29 29.757 7 29.974 AKQ 2400
    CTR 3.31 -1.84 1.65 6 1.65 6 8 1 36.87 0.0 14.5 30.200 29 29.740 11 29.956 AKQ 2400
    MEC 3.31 1.15 7,11 1.79 11-12 8 2 34.04 0.0 11.4 29.780 11 29.950 AKQ 2400
    RIC 2.77 -1.89 0.93 6 1.14 10-11 7 0 32.64 0.0 12.8 30.260 29 29.770 11 30.015 AKQ 2400
    ROA 3.09 -0.47 1.48 10 1.81 10-11 8 1 31.43 0.0 21.5 30.280 29 29.820 7 30.050 RNK 2400
    SVC 1.51 -2.47 0.67 24 0.67 24 6 0 38.22 0.0 26.0 LWX 2400
    WAL 2.67 -1.52 1.95 11 1.95 11 7 1 29.10 0.0 11.3 30.240 29 29.850 25 30.045 AKQ 2400
    WSH 0.92 -2.31 0.26 24 0.26 24 8 0 29.62 0.0 26.2 30.280 14 29.830 11 30.055 LWX 2400
    Averages 2.02 -2.10 0.89 1.06 7.6 0.4 31.24 0.0 18.7 30.234 29.773 29.999
    STATION T T1 U U1 V V1 W X Y Z 1 2 3 4 5 6 6A 7 7A 8 CWA TIME RECORDED
    STATION T T1 U U1 V V1 W X Y Z 1 2 3 4 5 6 6A 7 7A 8 CWA TIME RECORDED
    AVL 2.77 -1.63 0.80 10 0.80 10 13 0 26.10 0.0 13.3 30.250 29 29.760 7 30.005 GSP 2400
    MRH 9.10 1.40 1.84 8 1.84 8 13 5 36.66 0.0 T 29.720 8 MHX 2400
    CLT 3.84 -0.38 1.19 23 1.19 23 11 1 22.42 0.0 3.1 30.230 29 29.760 7 29.995 GSP 2400
    ECG 2.45 -4.19 0.93 6 1.31 6-7 8 0 30.18 0.0 T 30.220 29 29.750 7 29.985 AKQ 2400
    FAY 3.00 -2.49 1.23 31 1.23 31 10 1 30.79 29.770 7 RAH 2400
    GSO 6.85 2.97 2.95 6 2.95 6 7 2 25.21 0.0 9.6 29.770 7 RAH 2400
    HSE 5.67 -1.26 2.42 3 2.42 3 13 1 36.70 0.0 2.0 29.720 8 MHX 2400
    HKY 3.36 -0.74 1.09 19 1.09 19 8 2 21.78 30.200 29 29.730 7 29.965 GSP 2400
    LBT 3.98 -1.52 1.17 6 1.90 6-7 9 2 28.98 30.220 29 29.730 7 29.975 ILM 2400
    EWN 8.77 2.12 2.83 11 3.17 26-27 9 4 41.22 0.0 3.0 29.720 8 MHX 2400
    RDU 4.82 0.56 1.75 31 1.75 31 6 2 34.02 0.0 7.9 29.770 7 RAH 2400
    RAL 3.47 -0.79 1.46 8 28.16 0.0 8.9 30.070 16 29.800 7 29.935 RAH 2400
    WHI 4.06 -1.59 1.12 26 1.12 26-27 13 1 26.38 0.0 0.5 30.204 29 29.718 7 29.979 ILM 2400
    ILM 8.95 1.54 1.60 3 2.42 6-7 15 4 39.94 0.0 0.3 30.190 30 29.710 7 29.950 ILM 2400
    Averages 5.08 -0.43 1.61 1.76 10.2 1.9 30.61 0.0 4.4 30.198 29.745 29.974
    STATION T T1 U U1 V V1 W X Y Z 1 2 3 4 5 6 6A 7 7A 8 CWA TIME RECORDED
    STATION T T1 U U1 V V1 W X Y Z 1 2 3 4 5 6 6A 7 7A 8 CWA TIME RECORDED
    AND 3.82 0.03 0.95 11 0.96 17-18 10 0 25.57 0.0 30.210 29 29.760 7 29.985 GSP 2400
    CAE 4.85 -0.41 2.22 30 2.22 30 7 2 31.05 0.0 T 30.210 29 29.750 7 29.980 CAE 2400
    CRE 5.79 -1.62 1.84 4 2.15 3-4 14 2 32.76 30.190 29 29.730 7 29.960 ILM 2400
    CHS 11.22 4.07 6.43 31 6.43 31 14 1 41.85 0.0 T 30.180 29 29.730 7 29.955 CHS 2400
    CXM 12.45 5.74 2.56 18 2.56 18 16 6 36.07 29.710 7 CHS 2400
    FLO 5.92 0.68 1.59 5 1.60 5-6 13 2 27.84 0.0 T 30.210 29 29.730 7 29.970 ILM 2400
    GSP 2.41 -2.07 0.50 5 0.83 5-6 12 0 25.54 0.0 3.7 30.210 29 29.740 7 29.975 GSP 2400
    OGB 3.03 -2.25 1.40 6 1.43 6-7 12 1 27.26 30.210 29 29.740 7 29.975 CAE 2400
    Averages 6.19 0.52 2.19 2.27 12.3 1.75 30.99 0.00 0.9 30.203 29.736 29.971
    STATION T T1 U U1 V V1 W X Y Z 1 2 3 4 5 6 6A 7 7A 8 CWA TIME RECORDED
    STATION T T1 U U1 V V1 W X Y Z 1 2 3 4 5 6 6A 7 7A 8 CWA TIME RECORDED
    TRI 6.01 2.54 2.04 18 2.42 18-19 13 1 29.17 0.0 15.5 30.200 29 29.750 7 29.975 MRX 2400
    DAV 4.11 1.49 11 11 1 43.41 0.0 152.1 PBX 2400
    STATION T T1 U U1 V V1 W X Y Z 1 2 3 4 5 6 6A 7 7A 8 CWA TIME RECORDED


    Virginia:

    Arlington/Washington, D.C. - "THE MONTHLY AVERAGE TEMPERATURE WAS SLIGHTLY ABOVE NORMAL. MONTHLY PRECIPITATION WAS BELOW NORMAL. TWELVE DAYS LAST MONTH REACHED OR EXCEEDED 90 DEGREES...THE HIGHEST NUMBER OF DAYS IN AUGUST SINCE 2012. PRECIP IN AUGUST MARKED THE DRIEST AUGUST SINCE 2006. " - [ + - ] - from NWS Sterling, VA

    Chantilly - " August temperatures were above normal and precipitation was much below normal. The mean monthly temperature was 76.5 (+1.1). The mean high temperature was 87.3 (+0.7) and the mean low temperature was 65.7 (+1.5). No temperature records were set. August precipitation of only 1.20 was much below average (-2.33). No precipitation records were set. Thunderstorms were observed on the 4th, 19th, and 20th. *Please note, anemometer is currently partially obstructed from the North and East " - [ + - ] - Member Russ Topping

    Seven Corners (Fairfax County) - from Member John Iekel: " NORMAL TEMPS. NO HEAT WAVES. VERY DRY. PREDICTIONS OF RAIN BROUGHT ONLY DISAPPOINMENT FOR MY PARCHED GARDENS. WHAT A DIFFERENCE A MONTH MAKES. " - [ - - ]

    Dulles - from NWS Sterling (KLWX): "THE MONTHLY AVERAGE TEMPERATURE WAS SLIGHTLY BELOW NORMAL. MONTHLY PRECIPITATION WAS WELL BELOW NORMAL. FOUR DAYS LAST MONTH REACHED OR EXCEEDED 90 DEGREES...THE HIGHEST NUMBER OF DAYS IN AUGUST SINCE 2012. AUGUST 2015 MARKED THE DRIEST AUGUST SINCE 1998...AND THE FIFTH DRIEST ON RECORD. " - [ - - ]

    Herndon - from member Randy Ashby: " August was below normal for temperature and well below normal for precipitation. The temperatures ranged between a high of 93 and a low of 55 and was 1.5 degrees below normal. On the precipitation side, the month was 3.19 Below normal, with only 0.70 measured. This was the driest August on record for this site (21 years). We are now 0.27 below normal for the year. " - [ - - ]

    Norfolk - from NWS Wakefield (AKQ): "View the NWS AKQ Wakefield August 2015 Climate Summary with a click here " - [ + - ]

    Portsmouth - from Bill Trotter: " AUGUST 2015 WAS THE 4TH DRIEST IN THE DATABASE TO 1976. The Top 5 Driest Augusts include: 1) 1.33" 1995 2) 1.35" 1997 3) 1.37" 2008 4) 1.64" 2015 5) 1.67" 1983. The month's average temperature of 78.0 was 0.3 BELOW NORMAL. Precipitation (1.64") was BELOW NORMAL by 4.00" or 29% of the August average during the period from 1976 to 2014. Rainfall for the year through August 31st was 33.55" (-0.58" or 98% of normal), the first time this year that the yearly rainfall has totaled below normal at month's end. To view the station monthly and year-to-date climatological summary (LCD) for this Portsmouth station, please click here. Frontal passages were recorded on the 2nd, 6th, 7th, 12th, 21st, and 25th. STATION RECORDS: 8th - WIND GUST 30mph [previous 26mph 1989], 20th - TEMPERATURE Maximum low 76 [previous 75 2002], and 21st - TEMPERATURE Maximum low 75 [previous 2002]. " - [ - - ]

    Glen Allen - from Lowell Koontz: " The monthly mean temperature for August was 76.4 F, a -0.9 F mean temperature departure based on a seven-year average and the third lowest on record. The 1.83 inches of rain for August was a negative 2.91 inch departure based on a seven-year average and the driest August on record. The most rainfall in a calendar day was 0.61 inches, in 24 hours was 0.92 on the 9th and 10th and in one hour was 0.26 inches which were all record low amounts. The month had 8 precipitation days the second least number of days on record. The maximum temperature for August was only 95F on the 4th. The lowest minimum was 59F recorded on the 28th. The maximum wind gust was only 23 mph on the 4th as there were no strong thunderstorms. Thunder was only heard 3 days which tied for a record minimum. Before drawing too many conclusions between these tables, note Glen Allen has a six-year average and the Richmond International Airport uses a 30-year average. The six year average temperature of this station includes the very hot summers of 2010 and 2011. It is interesting that Glen Allen had the wettest June and the second wettest July followed by the driest August on record. August was 1.82 inches drier than the previous driest August and had a -2.91 inch departure from the average. Thus the summer was cooler than average with an average departure of negative 0.8F. August was also wetter than average with a +1.06 inch departure and a departure of +3.8% relative humidity. " - [ - - ]

    Richmond - from contributor Lowell Koontz (GAV): " The Richmond International Airport (KRIC) had 2.77 inches of rain for the driest August since 2005 when 2.56 inches was recorded and was the 35th driest August in the past 128 years. The Richmond International Airport had an August mean temperature of 77.5 F and was the 43rd warmest August. The Richmond International Airport tied with 2012, 1989, and 1915 for the high daily minimum of 75F on the 5th which was the only daily record. The lowest maximum temperature for the month was 78 F on the 7th and the highest maximum was 96 F on the 4th. The coolest August day was the 28th with a daily mean of 73.5. Only August 5th of 1900 had a higher daily mean for the coolest day in August. The summer averaged +1.1F warmer than average and precipitation averaged +0.70 inches above average because of the wet June and July. " - [ -/+ - ]

    Richmond - from NWS Wakefield (AKQ): "View the NWS AKQ Wakefield August 2015 Climate Summary for Richmond with a click here " - [ -/+ - ]

    North Carolina:

    Fayetteville - from NWS Raleigh (RAH): " A RECORD HIGH MINIMUM TEMPERATURE OF 78 DEGREES WAS TIED AT FAYETTEVILLE REGIONAL AIRPORT ON JULY 15TH. THIS TIED THE RECORD ORIGINALLY SET IN 1993. THE MONTHLY AVERAGE TEMPERATURE AT FAYETTEVILLE REGIONAL AIRPORT FOR JULY 2015 WAS 82.7 DEGREES (AS OF 8 PM ON THE 31ST). THIS MAKES JULY 2015 THE 6TH WARMEST JULY ON RECORD. " - [ + - ]

    Raleigh - from contributor Bob Woodson (RAL): " THE AVERAGE DAILY TEMPERATURE FOR JULY WAS ONLY -0.2 DEGREES BELOW NORMAL WHILE RAINFALL WAS 1.59 BELOW NORMAL. PRECIPITATION FOR THE YEAR IS 0.59 BELOW NORMAL. PLEASE NOTE THAT JULY TEMPERATURE AND WIND DATA IS INCOMPLETE DUE TO EQUIPMENT FAILURE THAT OCCURRED FOR SEVERAL DAYS. " - [ - - ]

    South Carolina:

    North Charleston - from NWS Charleston (CHS): " RECORDS ESTABLISHED DURING THE MONTH: *AUG 31 - RECORD MAXIMUM PRECIPITATION OF 6.43 INCHES 5TH GREATEST 1-DAY PRECIPITATION " - [ + + ]

    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 VRB Variable
    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 2014-2015 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 STN  Station
      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 Weather Headlines visit the National Weather Service Homepage
    or conduct a Google.com Search

    http://www.weather.gov
     

    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:
    [ includes current stations, inactive stations, and closed stations since database inception ]

        
    AKQ    Wakefield, VA NWS Wakefield Municipal Airport 36-58-53N 077-00-04W 33M SVC    Seven Corner, Fairfax County, VA John Iekel Latitude 38.857404 Longitude -77.151696
    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   
      WOO  Woodstock, VA 5NW Lauck Walton 12/1/85 STATION CLOSED 08/2014
       LDY Ladysmith, VA Danny Jessee 2003 STATION CLOSED 8/31/2010 danny@dannyjessee.com
    BRI     Bridgewater, VA Clayton Towers Ctowers19@aol.com WAL   Wallops Island, VA 37 56'26" N 75 27'47" W Wallops Flight Facility Airport
    CEN  Centreville, VA Paul Bassett 1985,
    38 50.9788' N LAT. 77 25.6374' W LON. | Elevation 324' | STATION CLOSED
    AVL    Asheville, NC  Asheville Regional Airport 35-25-55N 082-32-15W 670M
    CHO   Charlottesville, VA  Charlottesville-Albemarle Airport ASOS 
    (Rappahannock County) 38-08-18N 078-27-21W 192M
    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  CLT    Charlotte, NC NWS Charlotte/Douglas International Airport 35-12-48N 080-56-55W 220M
    IAD   Dulles - Washington-Dulles International Airport  38-56-05N 077-26-51W 93M   
    FCH    Falls Church, VA Erica Page 3/7/94 Windie1970@aol.com HKY  Hickory, NC 
    HAM    Hampton, VA 5NE Dave Kessel 1989 kesseld1@cox.net ECG  Elizabeth City, NC,  Coast Guard Air Station 36-15-47N 076 10-58W 11M
    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
    CTR  Winterpock in Chesterfield County, VA Albert Arnold 06/03 FAY  Fayetteville, NC Fayetteville Regional Airport, 34-59-22N 078-52-48W 55M
      GSO   Greensboro, NC NWS Piedmont Triad International Airport 36-05-51N 079-56-37W 275M
    CHT   Chantilly, VA Russ Topping -  12/2006  russ.topping@gmail.com HSE   Cape Hatteras, NC  Mitchell Field 35-13-56N 075-27-21W 3M
    HDV    Herndon, VA  Randoplh W. Ashby, 3.3 SM South,
    Lat: 38.922127, Lon: -77.38015, Elev: 390'. 1993 randy_ashby@msn.com
    LBT    Lumberton, NC  Lumberton Municipal Airport 34-36-26N 079-03-36W 37M
    GAV - Glen Allen, Henrico County, VA - Lowell Koontz  8/1/08  wwkoontz@verizon.net EWN    New Bern, NC  Craven County Regional Airport 36-04-03N 077-02-50W 3M
      MON    Moncure, NC  Chatham County - Mac McIlwain mac.mcilwain@embarqmail.com
      RAL    Raleigh, NC 7NNW  Bob Woodson -  6/1/93 kf4mmm@qsl.net
    LKU     Louisa, VA 1N Joseph Bowers 1944 - NWS ID  44-5050-02 STATION CLOSED RDU   Raleigh-Durham, NC Raleigh-Durham International Airport 35-52-14N 078-47-11W 130M
    LOU     Louisa, VA 6S John Bullock (about 1970) STATION CLOSED ROX    Roxboro, NC 2SE Merriell A. Jay 1/93 ending 12/13
         WHI   North Whiteville, NC Christopher Crawley 12/10 34.413744N / 078.751908W ccawley.kk4csr@gmail.com
    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 STATION CLOSED 5/31/10 CHS   Charleston, SC NWS Charleston Air Force Base 32-53-56N 080-02-26W 13M
      CXM    Downtown Charleston, SC NWS 32.77 N 79.93 W
    NPN     Newport News, VA 7N Gary Leonard -  6/91 mikey0781@cox.net 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 canaanwx@yahoo.com