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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE Blacksburg VA 331 AM EDT Sun Apr 27 2025 WVZ043-272000- RAWS 465401 37.53N 81.00W Elev. 2725 ft 331 AM EDT Sun Apr 27 2025 Date Sun 04/27/25 Mon 04/28/25 Tue 04/29/25 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 MAX/MIN TEMP 64 42 74 51 79 TEMP 40 40 50 59 63 56 49 46 43 46 60 70 73 66 59 55 52 55 70 77 78 71 DEWPT 34 32 31 30 30 32 32 32 32 34 38 41 44 44 43 42 42 45 51 53 55 54 MAX/MIN RH 29 64 34 70 43 RH 79 73 48 33 29 40 52 58 65 63 44 35 35 45 55 61 69 69 51 43 45 55 WIND DIR NW N N N N N NE E E SE SE S S S S S S S SW W W SW WIND SPD 5 5 6 6 5 4 2 2 3 3 5 5 5 5 4 3 2 2 5 6 6 5 CLOUDS B1 B1 SC SC FW FW FW FW FW FW FW FW FW FW FW CL FW FW SC B1 B1 SC CLOUDS(%) 60 55 41 39 18 18 8 8 10 6 8 7 13 17 8 4 10 16 34 53 58 50 VSBY 10 10 10 10 10 10 10 10 10 10 10 POP 12HR 0 0 0 5 40 RAIN SHWRS IS SC SC TSTMS IS IS IS MIX HGT <1 1 2 3 3 <1 <1 <1 <1 <1 3 5 5 <1 <1 <1 <1 <1 4 6 3 <1 T WIND DIR NW N N N N NW N E SE SE S SW S S S S SE S W W W SW T WIND SPD 16 10 16 10 8 3 2 2 3 5 14 9 8 12 6 4 2 2 13 12 10 6 DISPERSION PR VP VP VP VP PR VP VP VP PR ADI 11 16 48 41 36 2 1 1 2 6 56 56 54 6 3 2 1 2 69 84 33 5 MAX LVORI 4 3 1 1 1 2 2 3 3 3 1 1 1 2 3 3 3 3 1 1 1 3 STABILITY E A B B A F G G G A A A A F F G G A A B C E CEILING None None None None None None None None None None STA PRES 27.87 27.84 27.88 27.90 27.93 27.88 27.88 27.87 27.87 27.79 Date Wed 04/30/25Thu 05/01/25Fri 05/02/25Sat 05/03/25 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 MIN/MAX TEMP 60 77 59 78 60 70 47 65 TEMP 63 62 74 70 62 62 77 71 64 61 69 62 54 50 62 58 DEWPT 56 58 56 56 54 57 56 56 55 56 52 49 46 44 37 35 RH 78 87 53 61 75 84 48 59 73 84 55 62 74 80 39 42 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS SC B1 B1 B1 B1 B1 B1 B1 B1 B2 B1 SC SC SC FW FW POP 12HR 40 60 40 60 40 60 30 10 RAIN SHWRS SC SC SC NM SC SC SC NM SC SC NM NM SC IS TSTMS IS IS IS IS IS 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