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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE Blacksburg VA 431 PM EDT Thu Apr 25 2024 NCZ001-260800- RAWS 310141 36.40N 81.29W Elev. 3009 ft 431 PM EDT Thu Apr 25 2024 Date 04/25/24 Fri 04/26/24 Sat 04/27/24 Sun UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 MIN/MAX TEMP 44 54 48 63 51 TEMP 62 56 51 49 46 45 47 51 52 52 51 51 50 49 54 60 63 60 57 54 51 53 DEWPT 35 37 37 39 43 42 43 44 44 45 45 46 47 46 48 48 47 47 47 49 48 49 MIN/MAX RH 95 73 93 56 89 RH 36 49 59 68 89 89 86 77 74 77 80 83 89 89 80 64 56 62 69 83 89 86 WIND DIR S SE SE SE SE SE SE SE SE SE SE SE SE SE S S S S S S S S WIND SPD 5 4 4 5 5 6 8 9 9 8 8 8 9 8 10 10 10 9 6 5 5 4 CLOUDS FW FW FW B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B2 B1 SC SC SC CLOUDS(%) 10 13 25 63 70 86 80 81 75 79 77 84 85 81 79 80 67 71 60 50 43 40 VSBY 10 10 10 10 7 7 6 8 8 6 6 8 10 10 10 10 10 10 10 10 10 10 POP 12HR 10 30 20 5 0 RAIN SHWRS IS IS IS IS IS IS SPRINKLES SC SC SC SC LAL 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 HAINES 5 5 5 4 3 3 3 3 3 3 3 3 3 3 2 2 3 3 MIX HGT 6 <1 <1 <1 <1 1 1 2 2 <1 <1 <1 <1 <1 2 3 3 <1 <1 <1 <1 <1 T WIND DIR W SE E E E SE SE SE SE SE SE SE S S S S S S S S S SW T WIND SPD 3 6 3 11 10 9 8 6 6 9 12 9 9 16 20 18 16 13 11 12 10 10 DISPERSION VP VP PR PR PR PR PR PR PR PR PR PR ADI 27 3 2 8 7 12 13 14 16 8 11 8 8 12 47 56 54 12 MAX LVORI 2 2 3 3 5 4 4 4 3 4 4 4 5 5 3 1 1 2 STABILITY A F F E E C C C C D D D D C C C C D CEILING None 500 600 600 600 600 600 2200 2200 STA PRES 27.35 27.39 27.47 27.45 27.48 27.48 27.54 27.50 Date 04/28Mon 04/29/24Tue 04/30/24Wed 05/01/24Thu 05/02/24 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 MAX/MIN TEMP 71 51 76 54 73 55 76 55 71 TEMP 69 65 54 55 74 69 57 57 72 65 57 58 75 67 58 58 70 63 DEWPT 50 48 48 49 49 48 48 49 53 52 51 52 50 51 50 49 47 43 RH 51 54 80 80 41 47 72 75 51 63 80 80 41 56 75 72 44 48 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS SC FW CL FW FW FW FW SC SC B1 SC FW FW FW SC SC SC SC POP 12HR 5 0 0 5 50 20 30 10 30 RAIN SHWRS SC SC IS IS SC IS SC TSTMS IS SC IS 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