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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE Blacksburg VA 731 AM EDT Thu May 1 2025 NCZ019-012000- RAWS 312001 36.23N 81.32W Elev. 2380 ft 731 AM EDT Thu May 1 2025 Date Thu 05/01/25 Fri 05/02/25 Sat 05/03/25 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 80 60 78 59 74 TEMP 63 73 78 76 69 66 64 62 64 72 76 75 69 64 61 61 60 68 73 71 65 DEWPT 59 60 56 56 57 56 56 55 58 59 58 58 58 56 56 56 58 59 57 56 55 MAX/MIN RH 46 85 53 91 57 RH 87 64 47 50 66 70 75 78 81 64 54 55 68 75 84 84 93 73 57 59 70 WIND DIR SW S S SW SW SW SW SW SW SW S S S SW SW SW SW S S SW SW WIND SPD 1 5 10 10 6 4 3 2 2 3 5 5 3 2 2 2 2 4 8 6 5 CLOUDS B1 B1 SC B1 B1 B1 SC SC B1 B1 B1 B1 B1 SC SC B1 B2 B2 B1 B1 B2 CLOUDS(%) 61 54 31 65 69 59 48 39 61 58 53 56 61 44 50 64 78 77 68 68 83 VSBY 2 10 10 10 10 9 6 10 9 10 10 10 10 POP 12HR 30 20 50 50 70 RAIN SHWRS SC IS SC SC SC SC SC SC SC SC NM NM NM NM TSTMS SC IS SC SC SC SC IS IS IS SC MIX HGT <1 3 6 4 <1 <1 <1 <1 <1 3 5 2 <1 <1 <1 <1 1 3 6 3 <1 T WIND DIR SW SW SW S SW SW SW SW SW SW SW SW W SW W NW N S S S SW T WIND SPD 4 14 18 21 11 6 4 3 3 9 13 16 1 3 3 4 2 12 20 26 12 DISPERSION PR VP VP VP VP VP VP VP PR ADI 5 46130 82 8 5 2 2 3 31 57 46 1 2 2 2 4 41 92 92 8 MAX LVORI 5 1 1 1 3 3 4 5 5 1 1 1 4 4 5 5 6 3 1 1 3 STABILITY B C B C E E F G A A C C F F F F B C C C E CEILING None 3100 None None 22000 None None 2200 700 3100 STA PRES 27.99 27.91 27.92 27.92 27.92 27.89 27.87 27.87 27.86 27.78 Date Sun 05/04/25Mon 05/05/25Tue 05/06/25Wed 05/07/25 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 54 68 50 69 50 69 52 72 TEMP 58 55 67 61 53 53 67 64 54 54 67 63 55 56 69 65 DEWPT 53 53 49 47 47 48 48 48 47 48 50 49 48 51 53 52 RH 83 93 52 60 80 83 50 56 77 80 54 60 77 83 57 63 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS B2 B2 SC SC SC SC SC SC SC SC SC SC SC SC B1 SC POP 12HR 70 50 30 40 20 30 20 30 RAIN SHWRS NM NM SC SC SC SC SC SC IS IS SC SC IS IS SC TSTMS SC $$ 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