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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE Blacksburg VA 431 PM EDT Sat Oct 18 2025 VAZ020-190800- RAWS 441801 37.99N 79.76W Elev. 2160 ft 431 PM EDT Sat Oct 18 2025 Date 10/18/25 Sun 10/19/25 Mon 10/20/25 Tue 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 53 71 45 60 37 TEMP 76 64 60 58 55 54 65 70 65 57 52 49 46 45 54 60 59 48 45 43 40 39 DEWPT 51 53 54 53 52 54 56 55 57 53 47 42 39 39 39 36 36 34 35 34 33 33 MIN/MAX RH 100 59 93 40 84 RH 42 67 81 83 90100 73 59 75 86 83 77 76 79 57 41 42 58 68 70 76 79 WIND DIR SW S SW SW S S S S SW W W W W W W W W W W W W W WIND SPD 2 2 2 3 3 4 6 9 10 12 13 12 11 9 8 5 5 3 2 2 2 2 WIND GUST 23 25 27 28 26 26 21 19 16 CLOUDS FW SC SC SC SC B1 SC B2 OV OV B2 B1 B1 SC FW CL CL CL CL CL CL FW CLOUDS(%) 9 31 33 42 38 63 45 72 95 91 80 55 53 39 14 5 1 3 4 5 5 6 VSBY 10 10 10 10 10 10 10 7 5 3 3 7 7 10 10 10 10 10 POP 12HR 0 80 70 5 0 RAIN SHWRS IS NM NM NM SC SC MIX HGT 2 <1 <1 <1 <1 <1 2 3 2 2 2 2 2 2 3 4 3 <1 T WIND DIR W S SE SE N SE S S S S W W W NW NW NW NW W T WIND SPD 8 5 2 1 1 2 12 28 27 12 31 29 27 20 29 25 19 10 DISPERSION VP VP VP VP FR FR FR FR VP VP VP VP ADI 21 3 1 1 1 3 38 73 49 14 42 40 31 45123129 83 5 MAX LVORI 2 3 5 6 7 9 3 1 3 4 4 3 3 3 1 1 1 3 STABILITY B G G F G D B D D D D D D C B B B G CEILING None None 1300 1100 1500 None None None None STA PRES 27.82 27.77 27.72 27.64 27.65 27.71 27.81 27.83 Date 10/21Wed 10/22/25Thu 10/23/25Fri 10/24/25Sat 10/25/25 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 69 42 57 39 56 34 62 42 61 TEMP 68 55 48 42 57 47 43 40 56 45 39 35 61 50 46 43 61 50 DEWPT 40 42 42 38 34 32 34 32 32 30 32 32 36 36 37 38 41 41 RH 36 61 80 86 42 56 70 73 40 55 76 89 39 58 71 82 48 71 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS FW SC SC FW FW SC SC SC FW FW FW FW SC SC B1 B1 B1 B1 POP 12HR 5 10 5 5 5 0 5 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