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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE Blacksburg VA 931 AM EDT Sat Sep 20 2025 NCZ005-202000- RAWS 310540 36.38N 79.70W Elev. 858 ft 931 AM EDT Sat Sep 20 2025 Date Sat 09/20/25 Sun 09/21/25 Mon 09/22/25 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 86 60 81 59 83 TEMP 77 83 82 74 67 63 62 62 72 79 80 73 65 62 60 61 73 80 82 74 DEWPT 64 62 60 61 63 63 62 62 64 62 61 62 63 62 60 61 63 63 63 64 MAX/MIN RH 46 100 51 100 52 RH 64 49 47 64 87100100100 76 56 52 68 93100100100 71 56 53 71 WIND DIR NE E E E E NE NE NE NE NE E E E E NE NE S S S S WIND SPD 6 6 6 4 3 2 4 4 5 5 5 3 2 2 2 2 2 3 3 2 CLOUDS CL FW B1 B1 SC SC B1 B1 SC FW FW SC SC SC SC B1 SC B1 SC SC CLOUDS(%) 3 19 56 57 35 50 55 66 43 23 25 33 34 40 48 58 45 56 46 38 VSBY 10 10 10 10 10 10 8 4 10 10 10 10 10 10 10 10 10 10 10 10 POP 12HR 0 10 0 0 5 MIX HGT 2 6 6 <1 <1 <1 <1 <1 2 4 4 <1 <1 <1 <1 <1 2 5 5 <1 T WIND DIR E E E NE NE NE NE E E NE E E E SE S S SW SW SW S T WIND SPD 9 8 9 5 13 8 8 9 8 5 5 2 2 4 3 2 10 8 6 4 DISPERSION VP VP VP VP VP VP VP VP VP ADI 24 56 59 3 6 4 5 10 22 28 29 1 1 2 2 2 32 45 40 2 MAX LVORI 2 1 1 3 4 9 9 7 3 2 2 3 7 9 10 10 3 1 1 3 STABILITY B B B F G F E D B B B G G G F C B B B G CEILING None None None None None None None None None STA PRES 29.35 29.41 29.43 29.47 29.40 29.38 29.38 29.38 29.31 Date Tue 09/23/25Wed 09/24/25Thu 09/25/25Fri 09/26/25 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 61 87 64 85 65 78 63 74 TEMP 65 63 86 75 67 65 84 74 67 66 78 70 66 65 73 67 DEWPT 62 62 63 64 65 64 65 67 67 66 68 68 66 65 67 66 RH 90 97 46 69 93 97 53 79100100 71 93100100 81 97 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS SC SC SC SC SC B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 POP 12HR 5 10 10 20 30 40 50 50 RAIN SHWRS IS IS SC SC 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