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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE Blacksburg VA 931 PM EST Mon Jan 20 2025 NCZ003-210900- RAWS 310302 36.35N 80.48W Elev. 1076 ft 931 PM EST Mon Jan 20 2025 Date 01/20/25 Tue 01/21/25 Wed 01/22/25 Thu UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 EST 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 MIN/MAX TEMP 11 26 10 27 13 TEMP 17 15 14 12 18 24 25 24 21 17 12 10 16 23 26 22 20 18 15 14 DEWPT -1 -2 -2 -3 -3 -4 -3 4 5 1 -2 -4 -6 -8 -7 -5 -3 -3 -1 -1 MIN/MAX RH 49 28 54 22 50 RH 44 46 48 50 38 28 29 41 49 49 52 52 36 24 23 29 35 38 48 50 WIND DIR N N N N N W SW NW NW N N N NE SE S SE SE S SW W WIND SPD 5 4 4 3 2 2 2 5 10 11 10 6 4 3 4 3 3 3 3 2 CLOUDS CL CL FW SC B1 OV B2 OV B2 SC FW FW FW FW FW FW FW FW SC B1 CLOUDS(%) 2 3 19 40 68 89 81 91 70 31 15 9 6 16 12 8 12 19 29 63 VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 POP 12HR 0 5 5 0 0 LAL 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 HAINES 4 4 4 4 4 3 3 4 4 4 4 4 4 4 4 4 MIX HGT <1 <1 <1 <1 2 3 3 <1 3 3 2 2 2 3 3 <1 T WIND DIR NW N N N NW NW NW W NW NW N N N E S S T WIND SPD 9 5 5 6 4 4 4 9 17 18 13 12 6 2 4 4 DISPERSION PR VP VP PR FR FR FR VP VP VP VP ADI 4 3 3 7 12 15 16 6 23 12 9 27 17 9 15 2 MAX LVORI 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 STABILITY F G G B C C C E D E E C C B C G CEILING None 9300 6800 13300 None None None None STA PRES 29.41 29.40 29.31 29.37 29.36 29.42 29.36 Date 01/23Fri 01/24/25Sat 01/25/25Sun 01/26/25Mon 01/27/25 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 MAX/MIN TEMP 36 20 39 20 43 24 46 31 46 TEMP 33 30 25 21 37 31 24 21 40 35 27 25 44 39 33 32 44 41 DEWPT 2 6 9 11 13 14 14 14 16 21 20 21 27 30 30 31 35 33 RH 26 35 50 65 37 49 65 74 37 56 74 84 51 70 89 96 70 73 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS B1 B1 SC SC SC SC FW FW FW FW SC B1 B1 B1 B1 B1 B1 B1 POP 12HR 0 0 5 0 0 0 10 20 30 RAIN C C SNOW S $$ 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 LAL(CATEGORY).......................Lightning Activity Level HAINES(CATEGORY)....................Haines Index 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