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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE Blacksburg VA 1031 AM EDT Wed Jul 17 2024 VAZ020-172000- RAWS 441801 37.99N 79.76W Elev. 2160 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 88 68 85 62 83 TEMP 82 86 82 76 72 70 69 72 78 82 81 73 69 66 63 67 75 80 80 73 DEWPT 69 67 67 67 67 66 65 66 65 62 58 58 56 57 56 57 58 58 58 59 MAX/MIN RH 53 89 45 78 46 RH 65 53 61 74 84 87 87 81 64 51 46 59 63 73 78 70 55 47 47 62 WIND DIR W W W W W W NW NW NW NW NW NW N N N NE E S S S WIND SPD 5 6 6 5 4 3 3 3 2 3 3 3 3 3 3 3 2 2 2 2 CLOUDS SC B1 B2 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC B1 SC SC SC CLOUDS(%) 44 54 78 62 61 65 68 56 65 63 58 48 49 50 49 47 55 48 39 43 VSBY 7 6 7 5 5 1 2 3 8 10 10 7 POP 12HR 40 50 30 10 10 RAIN SHWRS SC IS SC SC SC SC SC SC SC IS TSTMS SC IS SC SC IS SC IS LAL 1 3 2 3 3 2 1 1 1 3 2 1 1 1 1 1 1 1 1 HAINES 4 4 4 3 3 3 3 3 3 4 4 4 4 4 4 4 4 5 5 4 MIX HGT 4 5 3 <1 <1 <1 <1 <1 2 5 5 <1 <1 <1 <1 <1 5 7 6 <1 T WIND DIR W W W W W NW NW N NW NW NW NW NW N N N S SW S S T WIND SPD 14 16 14 8 4 4 2 3 3 8 12 13 4 3 3 4 3 4 4 8 DISPERSION PR VP VP VP VP VP VP VP VP ADI 67 67 51 5 3 2 1 4 10 43 74 6 2 2 2 4 19 37 34 4 MAX LVORI 1 1 1 3 5 6 6 5 2 1 1 3 3 3 4 3 2 1 1 3 STABILITY A C C E E F F B B B B F F F F A B A A F CEILING 2100 5000 4000 600 None None None None None STA PRES 27.76 27.77 27.79 27.84 27.85 27.91 27.95 27.99 27.96 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 65 80 65 85 66 85 67 83 TEMP 68 70 78 71 68 69 83 74 68 70 83 73 69 71 81 74 DEWPT 60 63 65 66 64 65 62 65 63 63 65 66 65 66 67 66 RH 76 78 64 84 87 87 49 74 84 78 55 79 87 84 63 76 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS SC B1 B2 B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 POP 12HR 10 40 10 30 20 50 40 60 RAIN SHWRS SC SC IS SC IS SC SC SC IS SC NM TSTMS SC SC IS SC SC 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