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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE Blacksburg VA 1101 AM EDT Tue Sep 16 2025 NCZ001-162000- RAWS 310141 36.40N 81.29W Elev. 3009 ft 1101 AM EDT Tue Sep 16 2025 Date Tue 09/16/25 Wed 09/17/25 Thu 09/18/25 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 73 53 71 52 75 TEMP 72 66 62 57 55 53 53 64 70 70 64 59 57 53 54 68 73 72 65 DEWPT 53 52 51 53 53 52 52 55 56 57 57 56 55 53 53 58 57 58 57 MAX/MIN RH 51 96 60 100 56 RH 51 61 67 86 93 96 96 73 61 63 78 90 93100 96 70 57 61 75 WIND DIR N N N N NW NW NW N N N E SW W W NW NW W W W WIND SPD 5 5 3 2 2 2 2 3 4 3 2 1 1 1 2 2 3 2 2 CLOUDS B2 B2 B2 B2 B1 B2 B2 B1 B1 B1 B1 SC SC SC SC FW SC SC FW CLOUDS(%) 71 70 75 70 65 78 70 64 65 60 61 46 33 31 37 25 39 29 23 VSBY 10 10 10 10 8 10 10 10 10 7 10 10 10 10 10 POP 12HR 20 20 20 0 10 RAIN SHWRS IS IS IS IS MIX HGT 5 3 <1 <1 <1 <1 <1 2 4 4 <1 <1 <1 <1 <1 3 5 3 <1 T WIND DIR N N N N N N NW N N N W W W W NW W SW SW SW T WIND SPD 13 16 11 5 9 10 8 12 9 6 1 1 1 1 2 3 4 5 2 DISPERSION VP VP VP VP VP VP VP VP VP ADI 41 52 5 3 4 5 6 34 25 24 1 1 1 1 2 14 28 18 1 MAX LVORI 1 1 3 6 6 7 6 3 2 3 4 7 8 10 8 3 2 2 4 STABILITY D C F F F F C C D C F F G G B B B B G CEILING 8300 4700 4200 3500 3100 None None None None STA PRES 27.33 27.32 27.29 27.30 27.27 27.30 27.30 27.33 27.29 Date Fri 09/19/25Sat 09/20/25Sun 09/21/25Mon 09/22/25 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 53 78 55 75 55 70 54 71 TEMP 56 55 77 67 59 56 73 66 58 57 68 62 57 57 69 63 DEWPT 54 52 54 57 54 53 58 57 57 57 59 58 57 56 60 59 RH 93 90 45 70 83 90 59 73 96100 73 87100 96 73 87 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS FW FW FW FW FW FW SC SC SC B1 B1 SC SC B1 B1 B1 POP 12HR 0 5 0 10 10 20 20 30 RAIN SHWRS IS IS IS 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