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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE Blacksburg VA 231 PM EST Wed Jan 29 2025 NCZ018-300900- RAWS 311941 36.22N 81.63W Elev. 3254 ft 231 PM EST Wed Jan 29 2025 Date 01/29/25 Thu 01/30/25 Fri 01/31/25 Sat 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 31 51 39 50 38 TEMP 48 42 38 34 31 33 43 49 51 42 40 41 42 43 46 49 48 46 44 42 40 39 DEWPT 24 20 19 19 20 19 21 23 26 29 33 34 38 41 44 48 47 41 40 39 38 37 MIN/MAX RH 65 36 90 82 97 RH 39 41 46 54 63 56 41 36 37 60 76 76 86 93 93 96 96 83 86 89 92 92 WIND DIR NW NW NW NW W W SW S S S S S S S S SW W W W NW NW NW WIND SPD 24 20 16 10 5 2 4 8 6 3 4 5 5 6 10 10 11 11 12 11 10 5 WIND GUST 48 44 34 21 14 16 17 18 19 23 21 24 26 29 28 24 18 CLOUDS FW FW CL FW SC SC SC B1 B2 OV OV OV OV OV OV OV B2 B1 SC B1 B1 B1 CLOUDS(%) 8 6 5 8 33 32 36 55 87 93 91 92 88 90 92 89 82 59 50 53 58 67 VSBY 10 10 10 10 10 10 10 10 7 7 6 6 6 6 6 6 6 7 10 10 10 POP 12HR 0 30 70 90 20 RAIN S C C C L L RAIN SHWRS O O O IS LAL HAINES MIX HGT 2 <1 <1 <1 <1 <1 <1 1 1 <1 <1 <1 <1 <1 <1 1 1 <1 T WIND DIR NW NW NW NW NW NW S S SW S S S SW S SW W W W T WIND SPD 34 18 16 10 8 4 5 8 4 4 8 9 10 12 21 12 8 11 DISPERSION GD GD FR PR VP VP PR PR FR FR FR FR ADI 65 16 14 7 4 5 6 13 7 2 5 6 7 14 28 18 13 10 MAX LVORI 1 2 2 2 3 3 2 2 2 3 4 4 4 5 4 5 5 4 STABILITY D D D E F B B D D F E E E D D D D D CEILING None None None 5400 4500 1700 700 700 None STA PRES 26.84 26.93 27.02 26.99 26.96 26.81 26.73 26.67 Date 02/01Sun 02/02/25Mon 02/03/25Tue 02/04/25Wed 02/05/25 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 50 33 45 36 57 40 54 38 51 TEMP 47 41 36 34 42 39 37 39 55 47 43 41 53 45 40 40 49 45 DEWPT 36 36 34 31 37 37 35 34 39 40 40 38 40 39 36 35 40 40 RH 65 82 92 89 82 92 92 82 55 76 89 89 61 79 85 82 71 82 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS SC FW SC B1 B1 SC SC SC SC FW SC SC SC SC SC SC B1 B1 POP 12HR 0 5 5 5 0 5 5 10 20 RAIN SHWRS 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