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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE Blacksburg VA 201 PM EDT Tue Sep 16 2025 VAZ020-170800- RAWS 441801 37.99N 79.76W Elev. 2160 ft 201 PM EDT Tue Sep 16 2025 Date 09/16/25 Wed 09/17/25 Thu 09/18/25 Fri 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 56 75 56 83 54 TEMP 68 63 60 59 58 57 67 74 72 64 62 60 58 57 73 80 80 68 63 60 57 55 DEWPT 54 53 53 53 53 53 58 60 60 58 58 57 56 57 60 57 56 55 54 54 53 52 MIN/MAX RH 87 60 100 43 93 RH 61 70 78 80 83 86 73 62 66 81 87 90 93100 64 45 44 63 72 81 86 90 WIND DIR NE N N N N NW N NE NE NE N NW NW NW NW NW NW NW NW NW NW NW WIND SPD 2 3 4 4 4 3 2 2 2 2 2 2 2 2 1 1 2 2 2 2 2 2 CLOUDS OV OV B2 B2 B2 B2 B1 B1 B1 B1 SC SC SC SC FW FW FW FW FW FW FW FW CLOUDS(%) 89 91 76 70 74 75 66 58 58 55 44 35 33 37 18 23 14 20 17 16 8 10 VSBY 10 10 10 9 5 10 1 2 3 3 3 10 10 10 10 10 10 10 POP 12HR 20 20 5 5 0 RAIN SHWRS IS IS IS IS MIX HGT 2 <1 <1 <1 <1 <1 2 3 3 <1 <1 <1 <1 <1 3 5 5 <1 T WIND DIR NE N NE NE N N N N N NE NE N NW N N N SW NW T WIND SPD 18 13 11 13 9 5 9 16 8 4 3 0 1 0 3 0 3 2 DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP ADI 49 6 8 9 6 4 19 56 26 2 2 0 1 0 12 0 21 1 MAX LVORI 1 3 4 4 4 5 3 1 3 4 5 7 8 10 2 2 2 3 STABILITY B F E E E C C C C F F G G B A A B G CEILING 5900 3800 1400 900 None None None None None None STA PRES 27.95 27.93 27.88 27.87 27.85 27.89 27.89 27.91 27.88 Date 09/19Sat 09/20/25Sun 09/21/25Mon 09/22/25Tue 09/23/25 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 85 57 81 59 77 56 79 57 82 TEMP 84 70 63 58 79 67 62 60 75 65 59 58 77 66 61 59 81 69 DEWPT 55 54 54 55 58 56 58 58 59 55 55 56 58 57 57 57 58 58 RH 37 57 72 90 49 68 87 93 58 70 87 93 52 73 87 93 46 68 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS FW FW FW FW FW SC B1 B2 B2 SC SC B1 B1 SC SC SC SC SC POP 12HR 0 0 5 5 5 5 10 10 10 $$ 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