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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE Blacksburg VA 731 AM EDT Tue Apr 1 2025 NCZ005-012000- RAWS 310540 36.38N 79.70W Elev. 858 ft 731 AM EDT Tue Apr 1 2025 Date Tue 04/01/25 Wed 04/02/25 Thu 04/03/25 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 MAX/MIN TEMP 67 46 67 62 83 TEMP 47 54 62 66 59 52 50 47 47 58 63 67 65 64 63 63 65 74 79 82 77 DEWPT 39 39 37 36 37 38 39 40 41 42 47 52 55 57 60 62 63 65 65 63 61 MAX/MIN RH 33 79 54 100 53 RH 74 57 39 33 44 59 66 76 79 55 56 59 70 78 90 97 93 74 62 53 58 WIND DIR NW N N E E E E E SE SE SE S S S S S S S SW SW SW WIND SPD 6 6 4 3 3 4 5 5 5 6 9 9 6 10 11 11 11 13 13 13 8 WIND GUST 26 24 CLOUDS FW FW FW FW FW CL SC B1 OV B2 B1 B1 B1 B1 B2 OV OV B2 B1 SC B1 CLOUDS(%) 13 19 8 10 12 3 26 59 94 76 63 67 59 57 85 95 94 85 62 43 56 VSBY 10 10 10 10 10 10 10 10 10 10 10 9 9 7 10 10 10 10 10 10 10 POP 12HR 0 5 10 40 30 RAIN SHWRS SC SC SC SC IS IS MIX HGT <1 3 4 4 <1 <1 <1 <1 1 2 3 2 <1 <1 <1 <1 <1 2 3 4 <1 T WIND DIR N N N NE E E E E SE SE S SE S S S S S S SW SW S T WIND SPD 18 9 4 3 3 3 5 10 13 13 14 13 14 14 6 8 10 19 20 24 9 DISPERSION VP VP PR PR PR FR FR FR PR ADI 23 33 21 17 2 2 3 7 19 27 34 39 10 13 6 7 11 33 48 63 8 MAX LVORI 3 1 2 2 2 3 3 4 3 2 1 1 2 4 5 5 5 3 1 1 3 STABILITY B B B B G F F E D D D C E D D D D D D D D CEILING None None None 11100 2500 2600 900 500 600 None STA PRES 29.33 29.35 29.45 29.52 29.55 29.50 29.49 29.46 29.5 29.48 Date Fri 04/04/25Sat 04/05/25Sun 04/06/25Mon 04/07/25 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 MIN/MAX TEMP 66 88 63 87 67 84 56 68 TEMP 70 70 84 80 70 67 83 81 73 70 81 74 63 58 66 59 DEWPT 62 63 62 61 61 60 61 56 58 59 59 55 56 49 41 33 RH 76 78 48 52 73 78 47 42 59 68 47 51 78 72 40 37 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS B1 B2 B2 B1 B2 B2 B1 SC B1 B1 B2 B2 B2 B2 SC SC POP 12HR 20 20 30 20 10 50 60 30 RAIN SHWRS IS IS SC IS IS IS SC SC NM SC SC IS TSTMS 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 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