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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE Blacksburg VA 801 PM EDT Wed Sep 10 2025 VAZ012-110800- RAWS 447502 37.01N 81.18W Elev. 2540 ft 801 PM EDT Wed Sep 10 2025 Date 09/10/25 Thu 09/11/25 Fri 09/12/25 Sat 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 43 79 46 78 48 TEMP 52 48 44 49 71 75 76 62 54 51 48 49 70 76 76 63 55 53 49 50 DEWPT 46 45 44 48 50 49 49 49 48 46 45 47 53 52 50 52 52 50 49 50 MIN/MAX RH 100 37 94 39 100 RH 80 89100 96 47 40 39 62 80 83 89 93 55 43 40 67 90 89100100 WIND DIR N N NW NW N N N N N N NW NE E NE NE E SE SE SE SE WIND SPD 1 1 1 2 2 2 2 2 1 1 1 1 1 2 2 1 1 1 1 1 CLOUDS CL CL CL FW FW SC FW FW CL CL CL FW FW SC FW FW FW CL FW FW CLOUDS(%) 2 2 4 6 14 30 16 19 3 3 5 6 13 27 12 8 6 4 7 9 VSBY 10 10 8 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 POP 12HR 0 0 0 5 0 MIX HGT <1 <1 <1 <1 3 5 6 <1 <1 <1 <1 <1 3 6 7 <1 T WIND DIR W W W W N N N N NE NE E NW NE NE NE E T WIND SPD 3 3 3 2 4 5 6 4 3 3 2 1 4 5 4 3 DISPERSION VP VP VP VP VP VP VP VP VP VP VP ADI 2 2 2 2 19 35 46 2 2 2 1 1 20 37 34 2 MAX LVORI 4 7 10 8 2 1 1 3 4 5 7 7 2 1 1 3 STABILITY G G G B B B B G G G G A A B B G CEILING None None None None None None None None None STA PRES 27.38 27.38 27.40 27.36 27.39 27.40 27.43 27.39 Date 09/13Sun 09/14/25Mon 09/15/25Tue 09/16/25Wed 09/17/25 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 80 50 83 56 82 51 80 51 81 TEMP 78 64 53 52 80 67 59 57 79 66 55 54 78 66 55 52 79 66 DEWPT 52 52 50 49 53 56 55 55 56 54 52 52 55 55 53 52 56 55 RH 40 65 89 89 39 68 87 93 45 65 90 93 45 68 93100 45 68 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS FW FW FW FW SC SC FW FW FW FW FW FW SC FW FW FW SC FW POP 12HR 0 0 0 5 5 0 5 0 5 $$ 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