Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE Blacksburg VA 131 AM EDT Sat Apr 26 2025 VAZ018-270800- RAWS 444002 37.56N 80.18W Elev. 2702 ft 131 AM EDT Sat Apr 26 2025 Date 04/25/25 Sat 04/26/25 Sun 04/27/25 Mon UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 MIN/MAX TEMP 60 73 43 72 44 TEMP 61 60 61 67 72 72 62 54 50 46 45 58 68 72 63 53 48 44 46 DEWPT 57 56 57 59 58 54 48 42 38 34 32 33 32 32 33 33 33 33 35 MIN/MAX RH 98 54 66 24 67 RH 87 87 87 75 61 53 60 64 63 63 60 39 26 23 32 46 56 65 65 WIND DIR SW W W W NW NW NW NW NW NW NW NW NW NW NW NW NW N E WIND SPD 5 6 8 9 11 16 10 8 6 6 6 6 6 5 3 2 1 1 1 WIND GUST 20 23 24 25 26 28 31 27 25 26 26 23 18 17 16 CLOUDS OV OV B2 B1 B1 SC SC FW FW SC SC SC FW FW FW FW FW FW FW CLOUDS(%) 95 98 86 63 51 30 35 12 18 34 44 33 21 14 20 17 22 23 14 VSBY 7 7 7 8 10 10 10 10 10 10 10 POP 12HR 60 30 5 0 0 RAIN SHWRS IS SC SC SC TSTMS MIX HGT <1 <1 <1 3 4 4 2 1 <1 <1 1 3 4 5 <1 T WIND DIR SW SW W W NW NW NW NW NW NW NW N N N NW T WIND SPD 6 5 10 12 26 26 24 24 20 13 13 12 12 9 4 DISPERSION PR PR FR PR PR PR VP VP VP VP ADI 6 4 11 37136 94 16 16 9 6 22 43 64 55 2 MAX LVORI 4 6 4 3 1 1 2 2 3 3 2 1 1 1 2 STABILITY D E C C B C E E F F B B B A G CEILING 700 1100 None None None None None None STA PRES 27.72 27.73 27.76 27.87 27.91 27.96 27.93 Date 04/28Tue 04/29/25Wed 04/30/25Thu 05/01/25Fri 05/02/25 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 MAX/MIN TEMP 77 53 85 63 83 61 81 63 79 TEMP 73 68 57 58 84 73 66 66 83 71 63 63 80 70 65 65 79 67 DEWPT 40 44 45 48 56 55 56 57 58 55 54 54 55 55 55 57 55 50 RH 30 42 64 69 38 53 70 73 43 57 72 72 42 59 70 75 44 54 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS FW FW FW FW SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC POP 12HR 0 0 20 20 40 20 50 50 50 RAIN SHWRS IS IS IS IS SC IS SC SC SC SC SC SC TSTMS IS SC IS SC IS $$ This product is for planning and review purposes only and is not to be substituted for an official fire weather spot forecast. The data displayed are calculated from a 2.5 by 2.5 km digital database and only approximates weather conditions in highly varying terrain. Please relay any comments you have to the NWS via email at rnk.webmaster@noaa.gov. Below is a weather element key for this product. (Note...winds do not reflect local terrain effects.) DAY 1 THROUGH 3... MAX/MIN TEMP OR MIN/MAX TEMP(F).....Maximum/Minimum air temperature TEMP(F).............................Air temperature DEWPT(F)............................Dew point temperature MIN/MAX RH OR MAX/MIN RH(%).........Maximum/Minimum humdity RH(%)...............................Relative humidity WIND DIR(8 POINT COMPASS)...........Wind direction WIND SPD(MPH).......................Wind speed CLOUDS(CATEGORY)....................Cloud cover category EXAMPLE: CL = CLEAR; FW = FEW; SC = Scattered; BK = Broken; OV = Overcast CLOUDS(%)...........................Cloud cover as a percentage VSBY................................Visibility value in statute miles POP 12HR(%).........................Probability for accumulating precipitation WEATHER... TYPE... RAIN...........Rain RAIN SHWRS.....Rain showers TSTMS..........Thunderstorms DRIZZLE........Drizzle SNOW...........Snow SNOWSHWRS......Snow showers SLEET..........Sleet FRZG RAIN......Freezing rain FRZG DRZL......Freezing drizzle COVERAGE... IS.............Isolated SC.............Scattered NM.............Numerous O..............Occasional S..............Slight chance C..............Chance L..............Likely WD.............Widespread D..............Definite AR.............Areas PA.............Patchy MIX HGT(THOUSANDS OF FT AGL)........Mixing height Example: 6 = 6000 feet; 12 = 12000 feet; <1 = Less than 1000 foot t WIND DIR(8 POINT COMPASS).........Transport Wind direction T WIND SPD(MPH).....................Transport Wind speed DISPERSION(CATEGORY)................Smoke Dispersion category Values: vp =Very Poor;PR = Poor; FR = Fair; GD = Good; ADI (INDEX).........................Atmospheric Dispersion Index MAX LVORI (INDEX)...................Low Visibility Occurrence Risk Index STABILITY (CATEGORY)................Pasquill Turner Stability CEILING (FT)........................Ceiling STA PRES (INCHES MERCURY)...........Station pressure Day 4 Through 7... MAX/MIN TEMP OR MIN/MAX TEMP(F).....Maximum/Minimum air temperature TEMP(F).............................Air temperature DEWPT(F)............................Dew Point temperature RH(%)...............................Relative Humidity WIND SPD(MPH).......................Wind Speed Example: <15 = less than 15 MPH; 15> = 15 MPH or greater AVE CLOUDS(CATEGORY)................Average Cloud Cover Category POP 12HR(%).........................Probability for accumulating precipitation WEATHER.............................See Day 1 through 3 weather descriptions