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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE Blacksburg VA 131 PM EST Sat Dec 21 2024 NCZ003-212100- RAWS 310302 36.35N 80.48W Elev. 1076 ft 131 PM EST Sat Dec 21 2024 Date Sat 12/21/24 Sun 12/22/24 Mon 12/23/24 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 EST 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 MAX/MIN TEMP 38 21 36 21 39 TEMP 36 29 25 24 23 21 28 34 36 28 26 25 23 22 29 36 39 31 DEWPT 16 17 16 14 14 13 14 11 11 14 13 13 13 14 16 16 17 18 MAX/MIN RH 43 70 35 73 40 RH 43 60 68 65 68 71 55 38 35 55 57 60 65 71 58 43 40 58 WIND DIR N N N N N N N NE E E E E NE E S S S S WIND SPD 8 6 5 4 2 2 2 1 1 2 1 1 1 1 2 2 2 1 CLOUDS FW CL FW CL CL CL CL CL CL FW CL CL CL CL CL CL CL CL CLOUDS(%) 21 5 7 4 2 2 1 4 1 14 3 3 5 2 3 4 1 2 VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 POP 12HR 0 0 0 0 0 LAL 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 HAINES 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 MIX HGT 4 <1 <1 <1 <1 <1 2 3 3 <1 <1 <1 <1 <1 2 3 2 <1 T WIND DIR N N N N N N N N NE E E E E E S S S SW T WIND SPD 13 14 12 11 9 8 4 2 1 2 2 2 1 1 3 3 4 1 DISPERSION PR PR VP VP VP VP VP VP VP ADI 52 7 6 5 4 8 14 9 4 1 1 1 1 1 8 11 13 1 MAX LVORI 1 3 3 3 3 3 2 2 2 2 3 3 4 3 3 2 2 3 STABILITY C F F F G B B B B G G G G B B B B G CEILING None None None None None None None None None STA PRES 29.17 29.25 29.28 29.34 29.33 29.40 29.42 29.43 29.36 Date Tue 12/24/24Wed 12/25/24Thu 12/26/24Fri 12/27/24 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 EST 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 MIN/MAX TEMP 26 51 32 46 34 48 37 48 TEMP 26 27 49 42 34 32 44 41 36 34 45 42 38 38 45 44 DEWPT 17 19 31 32 32 32 37 36 35 34 39 38 37 37 39 39 RH 68 71 50 67 92100 76 82 96100 79 86 96 96 79 82 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS CL FW SC SC SC B1 B2 B1 B2 B1 B1 SC B1 B2 B2 B2 POP 12HR 5 5 10 20 30 20 30 40 RAIN SHWRS IS IS SC IS IS SC SC SC SNOWSHWRS SC IS $$ 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