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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE Blacksburg VA 801 PM EDT Sun Sep 21 2025 NCZ003-220800- RAWS 310302 36.35N 80.48W Elev. 1076 ft 801 PM EDT Sun Sep 21 2025 Date 09/21/25 Mon 09/22/25 Tue 09/23/25 Wed 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 60 80 59 84 62 TEMP 67 64 63 63 72 77 79 72 65 62 60 61 73 81 83 74 67 64 63 63 DEWPT 62 62 61 60 64 64 63 63 61 60 59 60 64 63 62 63 63 62 62 62 MIN/MAX RH 99 59 100 49 99 RH 84 93 93 90 76 64 58 73 87 93 96 97 73 54 49 69 87 93 97 97 WIND DIR E E N E SE S S SE S W W W SW SW SW SW W W W W WIND SPD 2 1 0 1 2 1 2 1 1 1 1 1 2 4 3 2 1 1 1 2 CLOUDS SC B1 SC B1 B1 SC SC B1 SC SC FW SC FW FW SC SC SC SC SC SC CLOUDS(%) 27 53 49 65 66 48 33 55 43 35 25 29 18 23 33 42 34 45 43 50 VSBY 10 10 8 5 10 10 10 10 10 10 10 10 10 10 10 10 POP 12HR 5 10 0 20 5 RAIN SHWRS IS IS TSTMS IS IS Obvis PF MIX HGT <1 <1 <1 <1 2 4 4 <1 <1 <1 <1 <1 2 5 4 <1 T WIND DIR E NE N SE SW S S S S SW W W SW SW SW SW T WIND SPD 2 2 1 1 4 5 8 2 1 1 1 1 13 11 10 4 DISPERSION VP VP VP VP VP VP VP VP VP VP VP ADI 1 1 1 1 12 27 38 1 1 1 1 1 33 64 50 2 MAX LVORI 5 7 9 8 4 3 1 3 6 8 10 8 3 1 1 3 STABILITY G F F C C A B F F G G A B B B F CEILING None None 1400 None None None None None None STA PRES 29.07 29.07 29.07 28.98 28.98 28.99 28.99 28.94 Date 09/24Thu 09/25/25Fri 09/26/25Sat 09/27/25Sun 09/28/25 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 84 65 77 65 74 61 75 59 77 TEMP 82 70 66 65 74 70 66 65 71 68 64 62 73 67 61 60 76 67 DEWPT 65 67 66 65 69 68 66 65 68 67 64 62 64 64 61 60 63 62 RH 56 90100100 84 93100100 90 97100100 73 90100100 64 84 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS B1 B1 B2 B2 B2 B2 B2 OV B2 B2 B2 B1 B1 SC SC SC SC SC POP 12HR 30 30 60 70 60 50 30 20 20 RAIN SHWRS SC SC SC SC NM NM NM SC NM SC SC SC SC IS IS IS TSTMS SC IS SC SC 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