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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE Blacksburg VA 931 PM EST Mon Jan 20 2025 NCZ005-210900- RAWS 310540 36.38N 79.70W Elev. 858 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 13 28 10 27 14 TEMP 19 16 15 14 20 26 27 25 23 20 14 12 19 25 27 23 20 18 15 15 DEWPT 0 0 0 -2 -1 -3 -2 4 6 4 1 -3 -4 -5 -5 -2 -1 1 1 1 MIN/MAX RH 52 26 55 24 55 RH 42 48 50 48 39 27 28 40 47 49 55 50 35 26 24 33 39 46 53 53 WIND DIR N N N NE NE N NW N NW N N N N NE SE E SE S S SW WIND SPD 4 4 4 3 3 2 2 2 5 10 10 9 8 4 3 3 4 4 3 3 CLOUDS CL CL FW SC B2 OV B2 OV B2 SC SC FW FW FW FW FW FW FW SC B1 CLOUDS(%) 2 2 10 45 71 89 76 89 87 49 28 11 6 9 16 7 9 13 28 64 VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 POP 12HR 0 10 10 0 0 FLURRIES IS LAL 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 HAINES 4 4 4 5 5 5 5 4 4 4 4 4 4 4 4 4 MIX HGT <1 <1 <1 1 2 3 3 <1 2 3 3 2 3 4 3 <1 T WIND DIR N N N N N N N NW N NW N N N NE SE SE T WIND SPD 9 8 8 9 5 4 4 3 12 17 17 18 12 3 3 3 DISPERSION VP VP VP VP PR FR FR VP VP VP VP ADI 4 4 4 16 14 14 15 2 8 23 12 43 38 12 14 2 MAX LVORI 2 2 2 2 2 2 2 2 2 2 2 1 1 2 2 2 STABILITY F G G B C C C F E D E C C C B G CEILING None 10000 9300 12900 None None None None STA PRES 29.77 29.77 29.67 29.71 29.72 29.79 29.72 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 37 21 41 21 45 26 49 33 49 TEMP 34 31 25 21 40 33 24 21 42 36 29 27 47 42 36 33 47 43 DEWPT 3 8 9 11 15 16 15 14 18 22 22 24 29 31 32 33 37 36 RH 26 37 50 65 36 49 68 74 37 56 75 88 49 65 85100 68 76 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS B1 B2 B1 SC FW SC FW FW FW FW SC B1 B1 B1 B1 B1 B1 B1 POP 12HR 5 5 5 0 0 0 10 10 40 RAIN C C $$ 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