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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE Blacksburg VA 802 PM EDT Wed Jul 23 2025 NCZ019-240800- RAWS 312001 36.23N 81.32W Elev. 2380 ft 802 PM EDT Wed Jul 23 2025 Date 07/23/25 Thu 07/24/25 Fri 07/25/25 Sat 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 65 85 68 88 71 TEMP 69 67 67 68 76 82 83 78 72 70 69 72 80 85 86 82 77 75 73 75 DEWPT 60 60 61 63 66 65 66 67 66 65 64 65 70 70 70 70 67 66 66 67 MIN/MAX RH 87 55 85 56 83 RH 73 78 81 84 71 56 57 69 81 84 84 79 72 61 59 67 71 74 79 76 WIND DIR NE NE NE NE E SE SE SE SW W W W W SW SW W NW NW NW NW WIND SPD 2 1 1 1 2 3 3 2 1 1 1 1 1 2 2 2 2 2 2 2 CLOUDS CL FW SC B1 SC FW SC FW FW FW FW FW FW B1 B1 FW FW FW FW SC CLOUDS(%) 1 16 37 58 41 19 28 10 11 12 8 10 10 53 53 19 15 11 15 40 VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 POP 12HR 0 10 5 20 5 RAIN SHWRS IS IS TSTMS IS IS MIX HGT <1 <1 <1 1 3 4 5 <1 <1 <1 <1 <1 4 6 4 <1 T WIND DIR NE NE E SE S S S S NW W W NW NW NW SW W T WIND SPD 2 2 1 4 2 1 3 5 2 3 3 3 8 3 3 4 DISPERSION VP VP VP VP VP VP VP VP VP VP VP ADI 1 1 1 7 9 6 21 3 1 2 2 3 41 22 18 2 MAX LVORI 3 5 6 4 3 3 2 3 5 5 5 5 3 2 2 3 STABILITY G G F B A A A G G G G A A B B G CEILING None None None None None None None None None STA PRES 28.09 28.10 28.13 28.07 28.06 28.05 28.06 27.99 Date 07/26Sun 07/27/25Mon 07/28/25Tue 07/29/25Wed 07/30/25 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 89 72 90 73 91 71 92 70 92 TEMP 86 82 75 75 87 83 76 76 88 83 74 75 88 84 74 74 89 84 DEWPT 72 70 68 69 71 70 69 69 69 68 66 66 68 69 68 67 67 68 RH 63 67 79 82 59 65 79 79 54 61 76 74 52 61 82 79 48 59 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS SC B1 SC FW SC B1 SC FW SC B1 SC CL FW B1 SC FW SC B1 POP 12HR 40 10 50 10 40 20 30 20 40 RAIN SHWRS SC SC IS SC IS SC IS SC TSTMS SC SC IS SC IS SC 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