Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE Blacksburg VA 132 AM EDT Sat Jul 26 2025 VAZ046-270800- RAWS 441101 37.39N 78.80W Elev. 804 ft 132 AM EDT Sat Jul 26 2025 Date 07/25/25 Sat 07/26/25 Sun 07/27/25 Mon 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 72 95 73 95 75 TEMP 75 73 76 86 92 92 87 80 77 75 77 89 94 93 85 78 77 75 78 DEWPT 72 71 72 73 73 72 73 74 74 73 75 75 75 75 77 75 74 73 75 MIN/MAX RH 95 48 100 57 95 RH 90 93 87 65 54 52 63 82 90 94 94 64 54 56 77 91 90 94 91 WIND DIR NW N N NE SE E NE NW N NW W W W W W NW NW NW NW WIND SPD 3 2 3 3 2 3 2 2 2 2 2 4 5 5 3 3 3 3 3 CLOUDS FW FW FW FW FW SC B1 SC SC SC FW FW FW SC SC SC SC FW FW CLOUDS(%) 21 21 15 9 21 38 53 47 33 34 14 13 18 35 39 30 26 24 17 VSBY 10 9 10 10 10 10 10 8 7 3 10 10 10 10 10 10 10 7 10 POP 12HR 20 20 20 30 10 RAIN SHWRS IS IS SC SC TSTMS IS IS SC SC MIX HGT <1 <1 <1 3 6 6 <1 <1 <1 <1 <1 4 6 4 <1 <1 <1 <1 <1 T WIND DIR SE W N NE N SW E E S SE S W W W NW NE NE N N T WIND SPD 1 2 1 4 0 1 1 1 5 2 5 6 8 12 2 2 1 2 2 DISPERSION VP VP VP VP VP VP VP VP VP VP ADI 1 1 1 19 0 9 1 1 3 1 6 32 63 58 1 1 1 1 2 MAX LVORI 7 8 6 3 2 2 4 6 6 8 6 3 1 1 4 7 7 7 6 STABILITY G G A A A A F F G G A A A A G G G G A CEILING None None None None None None None None None STA PRES 29.35 29.37 29.31 29.33 29.34 29.35 29.30 29.33 29.34 Date 07/28Tue 07/29/25Wed 07/30/25Thu 07/31/25Fri 08/01/25 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 94 73 95 73 96 74 92 69 82 TEMP 92 84 76 77 94 85 76 78 94 85 77 77 90 77 71 70 79 72 DEWPT 77 77 75 75 75 75 72 74 74 73 71 72 75 74 70 68 68 66 RH 62 80 97 94 54 72 87 88 53 67 82 85 62 90 97 93 69 81 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS FW SC SC FW FW SC FW FW FW FW SC SC SC B1 B2 B1 B1 SC POP 12HR 30 20 20 10 20 20 70 60 50 RAIN SHWRS SC IS IS IS IS IS NM NM SC SC SC TSTMS SC IS IS IS IS IS SC NM SC 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