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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE Blacksburg VA 131 PM EST Sat Dec 21 2024 NCZ005-212100- RAWS 310540 36.38N 79.70W Elev. 858 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 42 22 37 20 41 TEMP 41 32 27 25 22 22 30 36 37 28 25 23 21 20 31 39 40 33 DEWPT 18 18 16 15 14 14 14 13 12 14 14 14 13 14 16 15 17 18 MAX/MIN RH 39 73 36 77 36 RH 39 56 63 65 71 71 51 38 35 55 62 68 71 77 53 37 39 53 WIND DIR N N N N N N NE NE NE E E E E E SE SE S S WIND SPD 9 5 5 3 2 2 3 2 2 2 1 1 1 1 2 3 3 2 CLOUDS CL CL FW CL CL CL CL CL CL FW CL CL CL CL CL CL CL CL CLOUDS(%) 5 5 8 2 1 2 2 5 3 14 4 2 5 3 2 4 2 3 VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 POP 12HR 5 0 0 0 0 LAL 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 HAINES 5 5 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 MIX HGT 5 <1 <1 <1 <1 <1 3 3 3 <1 <1 <1 <1 <1 2 3 2 <1 T WIND DIR N N N N N N N N N E E E E SE SE SE SE S T WIND SPD 16 14 13 12 10 10 6 3 2 5 2 5 5 5 4 4 4 2 DISPERSION PR PR VP VP VP VP VP VP VP ADI 65 7 6 6 5 11 23 14 9 3 1 3 3 6 10 16 10 1 MAX LVORI 1 3 3 3 3 3 2 2 2 3 3 3 3 3 2 2 2 2 STABILITY C F F G 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 29.51 29.59 29.63 29.70 29.69 29.75 29.78 29.79 29.71 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 25 52 31 47 33 49 36 50 TEMP 26 27 49 43 35 32 46 42 36 33 47 43 37 36 48 45 DEWPT 16 19 31 33 33 32 38 37 35 33 39 38 37 36 41 40 RH 65 71 50 67 92100 73 82 96100 74 82100100 77 82 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS FW SC SC SC SC B1 B2 B1 B2 B1 SC SC B1 B2 B2 B2 POP 12HR 10 5 10 20 30 20 30 40 RAIN SHWRS IS IS SC IS 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