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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE Blacksburg VA 301 PM EST Wed Jan 29 2025 NCZ019-300900- RAWS 312001 36.23N 81.32W Elev. 2380 ft 301 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 34 54 41 53 41 TEMP 56 47 42 38 34 35 43 51 54 46 44 43 43 43 49 52 52 49 47 45 43 42 DEWPT 23 22 19 19 21 22 23 25 27 30 34 34 36 40 45 48 49 44 41 39 39 38 MIN/MAX RH 61 35 89 75 89 RH 27 37 39 46 58 59 45 36 35 53 68 70 76 89 86 86 89 83 79 79 86 86 WIND DIR W SW W W W W SW S S SW S S S S SW SW SW W W W NW NW WIND SPD 12 10 6 3 2 2 3 5 4 3 2 3 3 4 6 8 6 6 6 6 5 3 WIND GUST 27 CLOUDS SC FW FW SC SC SC SC SC B2 OV B2 OV OV OV OV B2 B2 B1 SC SC SC B1 CLOUDS(%) 31 12 7 27 41 30 35 44 81 94 86 93 88 92 93 87 85 58 34 30 36 53 VSBY 10 10 10 10 10 10 10 10 10 7 6 7 6 6 6 6 6 7 10 10 10 POP 12HR 0 20 40 90 20 RAIN C C C C C RAIN SHWRS NM O O IS LAL HAINES MIX HGT 3 <1 <1 <1 <1 <1 1 3 2 <1 <1 <1 <1 <1 1 1 1 <1 T WIND DIR NW W NW W NW W S S SW SW SW SW SW SW SW SW SW W T WIND SPD 25 11 8 4 4 1 4 9 4 2 4 5 6 8 13 13 5 6 DISPERSION FR PR VP VP VP VP VP VP PR PR PR PR ADI 85 8 4 2 2 1 8 29 9 1 2 3 3 9 20 20 7 5 MAX LVORI 1 2 2 2 3 3 2 2 2 3 3 3 4 5 4 4 5 5 STABILITY C E F G F B B B D F F F F D D D D E CEILING None None None 7600 5900 3000 600 500 None STA PRES 27.90 28.00 28.11 28.07 28.03 27.87 27.78 27.71 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 56 35 50 38 63 42 60 40 56 TEMP 54 45 39 36 45 43 40 40 60 51 46 43 59 50 42 41 54 49 DEWPT 37 36 33 32 36 37 36 36 41 42 40 39 41 39 36 36 40 40 RH 52 70 79 85 70 79 85 85 49 71 79 86 51 66 79 82 59 71 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS SC FW SC B1 B1 SC SC SC SC FW FW SC SC SC SC SC B1 B1 POP 12HR 0 5 5 0 0 5 5 5 10 $$ 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