ACON VA/NC/SC APRIL 1999 SUMMARY - TEMPERATURES/WIND/ELEMENTS ----------------------------------------------------------------------------- VIRGINIA ---------------------------------------------------------------------------- STN A B C D E F G H I J K L M N O P Q R R1 S ----------------------------------------------------------------------------- ANN 66.27 45.00 55.63 86 8 38 25 0 0 0 0 35 WNW 14 4 0 0 0 1 2400 DCA 66.4 46.7 56.5 85 8 41 6,19, 0 0 0 0 2400 21,24 IAD 85 8 31 25 0 0 2 0 2400 BRI 68.2 42.4 55.3 87 22 31 19 0 0 3 0 2 0 0 0 1 0530/1630 FCH 64.8 47.4 56.1 82 22 41 19,21, 0 0 0 0 2 1 0 0 1 2400 24 FRB 70.7 42.9 56.8 90 22 34 6,18, 1 0 0 0 2 0 0 2 0800 19,21 HAM 69.4 50.8 60.1 90 22 38 6 1 0 0 0 64 N 9 4 0 0 0 2 2100 HER 65.6 42.2 53.9 85 8 33 25 0 0 0 0 28 12 3 0 0 0 2400 HRN 66.6 42.5 54.2 86.5 8 32.4 25 0 0 0 0 32 NNE 4 3 1 0 0 0 2400 LKU 68.77 39.27 54.02 89 22 27 13 0 0 6 0 45 NE 23 2 1 0 0 0 2400 LOU 67.30 43.63 55.47 84 9,22 30 19,25, 0 0 4 0 2 0 0 0 2 0800 26 NEW 66.73 40.53 53.63 85 8 28 25 0 0 6 0 38 SW 16 4 0 0 0 2 1800 NPN 71.0 47.5 59.2 92 22 35 6 1 0 0 0 42 ENE 30 4 0 0 0 3 2300 NOR 68.5 46.8 57.6 89 22 35 6 0 0 0 0 2 0 0 0 1 2400 ORF 67.9 48.1 58.0 89 22 40 25 0 0 0 0 43 E 2400 POR 69.9 48.9 59.4 88 22 38 6 0 0 0 0 34 NE 30 4 0 0 0 0 2400 MEC 73 46 60 90 8,22, 33 6 0 0 0 0 2 1 0 0 0 1800 23 RMD 72.2 49.3 60.7 90 22 39 6 1 0 0 0 3 2300 RIC 69.6 45.8 57.7 89 22 34 6 0 0 0 0 53 WSW 2400 ROK 70.7 46.8 58.7 89 22 36 19 0 0 0 0 29 NW 12 2 0 0 0 1 2200 STF 70.43 43.58 57.00 89 4,22 35 19 0 0 0 0 4 0 0 0 3 2100 AKQ 71.57 43.17 57.37 92 22 29 6 1 2400 WEE 65.4 46.1 55.7 88 22,23 32 6 6 0 1 0 40 W 4 3 0 0 0 0 0800/2000 WOO 65.2 45.6 55.4 84 23 39 13,24 0 0 0 0 2 0 0 0 6 0800 WSH 68.19 44.90 56.55 87.5 8 38 13,25 0 0 0 0 25 ENE 12 4 0 0 0 1 2400 VNA 66.8 42.0 54.4 87 8 33 25 0 0 0 0 3 0 0 0 3 2200 ----------------------------------------------------------------------------- NORTH CAROLINA ---------------------------------------------------------------------------- AVL 70.3 46.7 58.5 83 4,11, 32 19 0 0 1 0 44 NW 2400 23 BRE 70.7 44.7 57.7 86 5 29 18,19 0 0 2 0 44 16 4 0 0 0 3 2100 CLT 73.5 50.6 62.1 87 4 33 18 0 0 0 0 41 NNE 2400 GSO 70.6 49.1 59.9 86 22 35 13 2400 RAL 73.3 48.1 60.7 88 22 33 18 0 0 0 0 30 9 4 0 0 0 1 2400 RDU 72.8 50.1 61.5 89 22 36 13 2400 ROX 71.1 50.2 60.7 87.0 4 39.0 6,13 0 0 0 0 32 NW 12 4 0 0 0 4 2100 18 ILM 75.5 55.5 65.5 89 8 42 13 0 0 0 0 47 NE 30 4 2 2400 ----------------------------------------------------------------------------- SOUTH CAROLINA ----------------------------------------------------------------------------- CAE 77.5 55.2 66.4 89 8 37 18,19 2400 CHS 78.3 57.3 67.8 90 8,11 41 18,19 2 0 0 0 37 SW 15 7 5 2400 GSP 74.2 51.5 32.9 88 11 34 18 0 0 0 0 2400 RUB 73.1 49.1 61.1 86 11,22 34 14,18 0 0 0 0 0 0 0 0 1 2400 23 ------------------------------------------------------------------------------ NEARBY LOCATIONS ----------------------------------------------------------------------------- TRI 70.0 46.3 58.2 82 5,22 30 13 0 0 1 0 2400 CHW 57.3 39.4 48.4 74.2 22 28.1 3 0 0 7 0 2000 ----------------------------------------------------------------------------- ACON VA/NC/SC APRIL 1999 SUMMARY - PRECIPITATION/BAROMETRIC PRESSURE ------------------------------------------------------------------------------- VIRGINIA ------------------------------------------------------------------------------- STN T U V V1 W X Y Z 1 2 3 4 5 6 7 S ------------------------------------------------------------------------------- ANN 2.26 0.42 4 0.51 4-5 10 0 14.55 0.0 0.0 16.9 30.36 29.34 2400 15 DCA 2.09 0.54 4 10 0 13.92 0.0 0.0 11.6 2400 IAD 2.68 0.52 9 11 0 14.13 0.0 0.0 20.2 2400 BRI 1.21 0.33 23 0.33 23 8 0 9.92 0.0 0.0 23.5 30.17 29.55 1630 FCH 1.82 0.58 11 0.58 11 10 0 16.67 0.0 0.0 13.7 FRB 0.76 0.27 1 0.27 1-2 7 0 13.06 0.0 0.0 6.95 0800 HAM 3.25 1.29 11 1.29 11 7 1 12.60 0.0 0.0 1.0 2100 15 HER 2.82 0.60 9 0.60 9 11 0 15.74 0.0 0.0 20.4 30.32 29.21 2400 HRN 2.40 0.45 11 0.60 4,5 10 0 13.91 0.0 0.0 18.1 30.34 29.32 2400 LKU 1.68 0.75 23 0.75 23 7 0 12.30 0.0 0.0 5.0 30.37 29.24 2400 LOU 1.57 0.50 1 4 0 12.99 0.0 0.0 6.5 29.40 0800 NEW 2.01 0.42 9,15 12 0 13.16 7.05 15 4 16.75 25.75 30.28 29.46 1800 NPN 3.67 1.44 11 1.44 11 9 1 16.59 0.0 0.0 0.8 30.41 29.37 2300 NOR 3.57 1.46 11 1.46 11 9 1 13.70 0.0 0.0 0.2 2400 ORF 3.66 1.40 11-12 8 0 12.79 0.0 0.0 0.3 30.34 29.29 2400 POR 2.96 1.39 11 1.39 11 8 1 11.43 0.0 0.0 0.1 30.35 29.37 2400 MEC 2.92 1.25 24 1.25 24 10 1 14.61 0.0 0.0 2.5 29.91 29.10 1800 RMD 1.72 0.41 9 8 0 12.21 0.0 0.0 T 2300 RIC 2.60 0.78 9 10 0 12.81 0.0 0.0 2.4 30.37 29.28 2400 ROK 3.02 0.96 11 0.96 11 10 0 12.40 0.0 0.0 9.3 2400 STF 1.95 0.52 9 0.52 9 6 0 15.82 0.0 0.0 10.70 2100 15 AKQ 3.87 1.84 11 8 1 15.72 0.0 0.0 0.3 2400 WEE 3.65 1.13 9 1.13 9 7 1 0.0 0.0 30.28 29.30 1630 WOO 2.08 0.34 10-11 14 0 11.78 0.0 0.0 29.5 30.51 29.85 0800 WSH 2.01 0.41 9 0.41 9 9 0 14.52 0.0 0.0 26.5 30.31 29.34 2400 VNA 2.38 0.42 11 0.42 11 10 0 14.52 0.0 0.0 19.0 ------------------------------------------------------------------------------- NORTH CAROLINA ------------------------------------------------------------------------------- AVL 2.44 0.75 1 11 0 0.0 0.0 30.28 29.50 2400 BRE 4.28 1.63 1 11 1 20.43 0.0 0.0 9.9 30.31 29.64 2100 CLT 4.12 1.47 29-30 8 2 11.62 0.0 0.0 1.9 30.31 29.48 2400 GSO 4.37 1.95 29-30 T 1.7 2400 RDU 3.53 1.26 29 14.95 0.0 0.0 2400 RAL 4.29 0.90 28-29 9 0 17.17 0.0 0.0 T 30.31 29.46 1900 ROX 4.51 1.30 29 1.30 29 10 2 15.25 0.0 0.0 T 30.31 29.38 2100 ILM 5.02 2.19 30 2.19 30 7 2 14.89 0.0 0.0 T 30.33 29.53 2400 ------------------------------------------------------------------------------- SOUTH CAROLINA ------------------------------------------------------------------------------- CAE 3.96 12.61 0.0 2400 CHS 2.90 0.95 15 0.95 15 8 0 12.02 0.0 0.0 T 30.30 29.56 2400 GSP 3.95 1.64 29-30 9 1 12.96 0 0 1.9 30.29 29.50 2400 RUB 5.11 2.70 30 2.70 30 4 2 17.39 0.0 0.0 T 30.40 29.60 2400 ------------------------------------------------------------------------------- NEARBY LOCATIONS ------------------------------------------------------------------------------- TRI 2.47 0.61 15 11 0 12.18 0 0 30.24 29.45 2400 ------------------------------------------------------------------------------- ------------------------------------------------------------------------------- ACON DATA REPORT DENOTATIONS ------------------------------------------------------------------------------- STATION/LOCATION (MILES & DIRECTION FROM MAIN POST OFFICE) /OBSERVER /YEAR RECORDS BEGAN: ALX Alexandria, VA Rick Schwartz 7/95 ROA Roanoke, VA Airport ANN Annandale, VA 1 3/4 ENE Lowell Koontz DCA Arlington, VA NWS 12/90 ROK Roanoke, VA 6SW Wendell Prillaman BCB Blacksburg, VA NWS 4/76 BRI Bridgewater, VA Clayton Towers STF Stafford, VA Danny Jessee VNA Vienna, VA Robert Boott, 1.5SW CEN Centreville, VA Paul Bassett 1985 AKQ Wakefield, VA NWS WSH Washington, VA David Yowell CHO Charlottesville, VA 3N John Stewart (Rappahannock County) 1/91 WEE Weems, VA 3WNW Francis J. Socey WOO Woodstock, VA 5NW Lauck Walton IAD Dulles International Airport 12/1/85 AVL Asheville, NC NWS BRE Brevard, NC 1SE Bob Keehn 1/1/90 FCH Falls Church, VA Erica Page CLT Charlotte, NC NWS 3/7/94 FRB Fredericksburg, VA 7SW Ken McKneely GSO Greensboro, NC NWS HAM Hampton, VA 5NE Dave Kessel 1989 HER Herndon, VA R.M. Beall P- 10/76 RAL Raleigh, NC 7NNW Bob Woodson T- 1/91 6/1/93 HRN Herndon, VA 4SW Russ Topping RDU Raleigh-Durham, NC NWS 1985 LKU Louisa, VA 1N Joseph Bowers 1944 LOU Louisa, VA 6S John Bullock (about 1970) LYH Lynchburg, VA NWS ROA Roanoke, VA NEW Newmarket, VA 2W Joyce Winfree ROX Roxboro, NC 2SE Merriell A. Jay 1/93 NPN Newport News, VA 7N Gary Leonard ILM Wilmington, NC NWS 6/91 CHS Charleston, SC NWS, courtesy of Eleanor Vallier-Talbot NOR Norfolk, VA 3NE Jim Fentress 6/1/77 CAE Columbia, SC NWS ORF Norfolk, VA 5NE NWS 1871 GSP Greenville-Spartanburg, SC NWS POR Portsmouth, VA 3S Bill Trotter RUB Ruby, SC 3 NW Franklin Hancock 7/1/76 MEC Mechanicsville, VA Glen Martin 11/19/91 RMD Richmond, VA Roy Britt 8/22/83 TRI Tri-cities/Bristol, TN NWS RIC Richmond, VA NWS CHW Canaan Heights, WV Dave Lesher COLUMN DENOTATIONS: A maximum mean temperature T total precipitation (inches) B minimum mean temperature U maximum calendar day precipitation (inches) C monthly mean temperature V date(s) of maximum daily precipitation V1 maximum 24-hour precip. & date(s) D maximum temperature W number of days with precip. >= .01" E date(s) of maximum temperature X number of days with precip. >= 1.0" F minimum temperature Y year-to-date precipitation (inches) G date(s) of minimum temperature Z maximum calendar day snowfall (inches) H days with maximum temperature >=90 1 date of maximum calendar day snowfall (inches) I days with maximum temperature <=32 2 number of days with snowfall J days with minimum temperature <=32 3 number of days with snowfall >= 1.0" K days with minimum temperature <= 0 4 total snowfall for month (inches) L peak wind gust (miles per hour) 5 total snowfall for '98-'99 season (inches) M direction of peak wind gust 6 maximum barometric pressure (inches) N date(s) of peak wind gust 7 minimum barometric pressure (inches) O number of days with thunder (i) incomplete data P number of days with hail (M) Missing, if listed in data table Q number of days with glaze E estimated R number of days with ice pellets ~ "about" R1 number of days with dense fog NR Not recorded S local observation time for temps/precipitation ----------------------------------------------------------------------------------------