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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE Blacksburg VA 1031 AM EDT Wed Jul 17 2024 NCZ001-172000- RAWS 310141 36.40N 81.29W Elev. 3009 ft 1031 AM EDT Wed Jul 17 2024 Date Wed 07/17/24 Thu 07/18/24 Fri 07/19/24 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 84 64 76 58 74 TEMP 77 82 80 74 69 67 65 67 72 74 73 70 66 63 60 62 70 72 72 70 DEWPT 67 66 66 66 65 64 64 64 65 64 63 61 59 57 56 57 60 60 62 62 MAX/MIN RH 59 97 72 87 67 RH 71 58 62 76 87 90 97 90 79 71 71 73 78 81 87 84 71 66 71 76 WIND DIR W W W W W W NW NW NW NW NW N N N N N E SE SE SE WIND SPD 8 8 8 5 5 4 4 4 4 5 4 4 4 3 3 3 3 4 3 3 CLOUDS SC SC B1 B2 B2 B1 B1 B1 B2 B2 B2 B1 SC SC SC B1 B2 B2 B2 B2 CLOUDS(%) 31 48 67 82 79 60 59 58 71 78 78 67 49 50 47 55 72 71 71 70 VSBY 7 7 6 4 10 7 6 7 10 10 10 5 POP 12HR 50 50 60 20 50 RAIN SHWRS SC SC SC SC SC SC NM NM SC IS IS IS IS SC SC SC TSTMS SC SC SC SC IS NM SC IS IS LAL 1 1 3 3 3 3 1 1 2 4 3 1 1 1 1 1 1 2 2 HAINES 4 4 4 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 MIX HGT 3 5 4 <1 <1 <1 <1 <1 2 2 3 <1 <1 <1 <1 <1 4 5 4 <1 T WIND DIR W SW SW SW W NW NW NW NW NW N N N N N NE E SE S SE T WIND SPD 9 5 12 8 6 10 10 11 8 9 11 12 12 5 5 4 8 3 4 8 DISPERSION PR PR VP VP VP VP VP VP VP ADI 32 33 48 5 5 7 7 9 16 26 37 8 8 3 3 5 35 14 21 4 MAX LVORI 3 1 1 4 6 6 6 5 4 3 3 3 4 5 6 5 3 3 3 4 STABILITY B B C E E E E C C C C E E F F B B C B F CEILING 3000 6400 400 400 3400 None None 800 1300 STA PRES 27.18 27.18 27.20 27.25 27.25 27.29 27.31 27.36 27.34 Date Sat 07/20/24Sun 07/21/24Mon 07/22/24Tue 07/23/24 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 62 73 61 76 62 76 63 76 TEMP 64 64 71 70 65 64 74 70 64 64 75 70 66 64 74 71 DEWPT 63 63 66 64 64 63 64 64 63 63 66 65 64 64 67 65 RH 97 97 84 81 97 97 71 81 97 97 74 84 93100 79 81 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS B2 B2 B2 B2 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 POP 12HR 30 60 40 60 50 60 50 60 RAIN SHWRS SC SC SC NM SC IS SC NM SC IS SC NM SC SC SC NM TSTMS IS SC SC IS SC SC IS SC SC IS SC $$ 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