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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE Blacksburg VA 131 PM EDT Fri Sep 19 2025 NCZ001-192000- RAWS 310141 36.40N 81.29W Elev. 3009 ft 131 PM EDT Fri Sep 19 2025 Date Fri 09/19/25 Sat 09/20/25 Sun 09/21/25 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 78 56 75 54 71 TEMP 78 77 69 64 61 59 59 68 73 74 66 60 58 56 55 66 71 69 62 DEWPT 56 58 57 56 54 52 52 58 57 56 56 58 58 56 55 60 59 59 58 MAX/MIN RH 46 84 53 100 66 RH 47 52 66 75 78 78 78 70 57 53 70 93100100100 81 66 70 87 WIND DIR S S S N N N N SE SE SE E E E E E SE SE SE SE WIND SPD 4 4 1 1 1 1 1 3 5 5 2 2 2 2 2 4 5 5 2 CLOUDS SC SC SC SC SC SC SC FW SC SC SC SC SC B1 B1 B1 SC SC FW CLOUDS(%) 32 29 26 30 35 43 28 21 35 46 50 41 49 51 65 59 35 27 20 VSBY 9 9 9 9 9 9 9 10 10 10 10 10 10 10 10 10 10 10 10 POP 12HR 0 0 10 20 10 RAIN SHWRS IS MIX HGT 6 5 <1 <1 <1 <1 <1 3 5 5 <1 <1 <1 <1 <1 2 3 3 <1 T WIND DIR S S SW NW NW NW N E SE E SE E E E E E SE SE SE T WIND SPD 3 4 2 2 2 2 2 2 6 6 8 9 8 11 9 8 8 8 1 DISPERSION VP VP VP VP VP VP VP VP VP ADI 24 27 1 1 1 1 2 9 38 38 4 4 4 5 7 16 33 27 1 MAX LVORI 2 2 3 5 5 7 6 3 1 1 3 6 9 9 8 4 3 3 6 STABILITY B B G G G G A B B B F F F F C D B B G CEILING None None None None None None None None None STA PRES 27.27 27.31 27.32 27.37 27.35 27.37 27.37 27.40 27.33 Date Mon 09/22/25Tue 09/23/25Wed 09/24/25Thu 09/25/25 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 74 55 77 57 76 58 69 TEMP 56 55 74 64 58 57 76 67 60 58 74 66 61 58 68 63 DEWPT 56 55 60 60 58 57 60 60 58 58 62 61 61 58 64 61 RH 100100 62 87100100 58 78 93100 66 84100100 87 93 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS SC B1 B1 SC SC SC SC B1 SC B1 B1 B1 B1 B2 B2 B2 POP 12HR 0 20 10 30 20 40 30 50 RAIN SHWRS IS SC IS IS SC SC SC SC SC TSTMS 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