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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE Blacksburg VA 802 PM EDT Wed Jul 23 2025 NCZ003-240800- RAWS 310301 36.48N 80.86W Elev. 1300 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 87 67 92 71 TEMP 71 68 67 70 79 83 85 81 73 71 68 72 82 88 89 84 77 75 73 75 DEWPT 63 62 63 66 70 68 69 71 69 68 66 68 73 72 73 72 71 70 69 70 MIN/MAX RH 91 59 93 55 95 RH 76 81 87 87 74 61 59 72 87 90 93 87 74 59 59 67 82 84 87 84 WIND DIR N N N N SE SE SE SE N N N N W SW SW W W NW NW NW WIND SPD 0 0 0 0 1 2 2 1 0 0 0 0 1 2 2 1 1 1 1 2 CLOUDS CL FW B1 B2 SC FW FW FW FW FW FW FW FW SC SC FW FW FW FW FW CLOUDS(%) 4 14 65 75 39 23 19 8 12 13 9 7 9 43 43 17 18 15 16 22 VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 POP 12HR 0 5 5 20 5 RAIN SHWRS IS IS TSTMS IS IS MIX HGT <1 <1 <1 1 3 5 5 <1 <1 <1 <1 <1 4 7 5 <1 T WIND DIR NE NE SE S SW SW S S W W W NW NW NW W W T WIND SPD 2 2 3 6 4 2 4 6 2 2 3 2 8 4 3 4 DISPERSION VP VP VP VP VP VP VP VP VP VP VP ADI 1 1 2 12 20 14 29 3 1 1 2 2 45 36 20 2 MAX LVORI 4 5 7 4 3 2 2 3 6 7 7 6 3 1 2 3 STABILITY G G F B A A A G G G G A A A A G CEILING None None None None None None None None None STA PRES 28.30 28.31 28.34 28.27 28.26 28.24 28.25 28.18 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 93 72 93 73 95 71 95 70 96 TEMP 89 85 76 76 90 86 77 77 91 85 75 75 91 86 75 75 92 86 DEWPT 73 72 70 71 72 72 71 71 72 71 69 70 71 72 71 70 71 72 RH 59 65 82 85 56 63 82 82 54 63 82 84 52 63 87 84 51 63 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS FW B1 SC SC SC B1 SC FW FW B1 FW FW FW SC FW FW FW B1 POP 12HR 30 10 40 10 30 20 30 20 30 RAIN SHWRS SC SC SC IS SC IS SC TSTMS SC SC 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