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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE Blacksburg VA 731 PM EST Sat Dec 21 2024 NCZ006-220900- RAWS 310801 36.37N 79.29W Elev. 580 ft 731 PM EST Sat Dec 21 2024 Date 12/21/24 Sun 12/22/24 Mon 12/23/24 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 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 20 39 17 43 23 TEMP 27 23 21 20 31 38 38 28 24 21 19 18 31 40 42 33 26 24 24 25 DEWPT 16 15 14 14 16 14 13 15 14 14 13 13 16 15 16 18 17 17 17 18 MIN/MAX RH 76 35 82 33 76 RH 63 71 74 77 53 37 35 58 65 74 77 80 53 36 34 53 68 74 74 74 WIND DIR N N N N NE N NE E E E N N E SE S S S SW SW W WIND SPD 5 4 3 3 5 3 3 2 2 1 0 0 2 2 2 1 1 1 2 2 CLOUDS FW CL CL FW CL CL CL FW CL CL CL CL CL CL CL CL FW FW SC SC CLOUDS(%) 7 2 3 6 5 4 2 12 5 2 4 3 2 5 2 3 6 16 34 49 VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 POP 12HR 0 0 0 0 10 LAL 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 MIX HGT <1 <1 <1 <1 3 4 3 <1 <1 <1 <1 <1 2 3 2 <1 T WIND DIR N N N N N N N NE E E E E E SE SE SE T WIND SPD 12 10 10 10 6 4 3 2 3 3 4 3 4 4 4 3 DISPERSION PR VP VP VP VP VP VP VP VP VP VP ADI 6 5 5 11 25 20 14 1 2 2 2 4 11 17 11 2 MAX LVORI 3 3 3 4 2 2 2 3 3 3 5 4 2 2 2 3 STABILITY G 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 29.68 29.73 29.80 29.79 29.86 29.88 29.90 29.82 Date 12/24Wed 12/25/24Thu 12/26/24Fri 12/27/24Sat 12/28/24 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 53 30 49 31 50 35 53 40 55 TEMP 50 44 34 30 47 43 36 32 48 43 36 35 50 47 42 41 53 49 DEWPT 31 34 33 30 38 37 35 32 39 39 36 35 41 41 38 37 42 42 RH 48 68 96100 71 79 96100 71 86100100 71 79 86 85 66 77 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS SC SC SC SC B1 B1 B2 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 POP 12HR 5 10 10 30 20 30 40 50 40 RAIN SHWRS IS SC IS IS IS SC SC SC SC 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