EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE BLACKSBURG VA 327 PM EDT Fri May 24 2013 WVZ043-250900- RAWS 465401 37.53N 81.00W ELEV. 2725 FT 327 PM EDT Fri May 24 2013 DATE 05/24/13 Sat 05/25/13 Sun 05/26/13 Mon 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 35 61 39 66 44 TEMP 54 49 43 40 38 41 51 57 60 54 48 44 42 46 56 62 65 59 52 49 47 50 DEWPT 30 30 31 29 28 30 29 27 28 29 31 32 33 34 35 34 35 36 36 36 37 39 MIN/MAX RH 76 30 76 32 77 RH 40 48 62 64 67 65 42 31 29 38 51 62 70 63 45 35 33 42 54 61 68 66 WIND DIR NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW N E SE S WIND SPD 18 11 8 6 6 8 10 12 12 9 6 4 3 3 6 6 6 4 2 2 2 3 WIND GUST 28 CLOUDS FW FW CL CL CL FW SC SC FW FW FW SC SC B1 SC FW FW FW FW SC SC SC CLOUDS(%) 13 25 0 0 0 7 27 36 18 10 17 33 49 51 38 18 11 11 24 33 37 43 POP 12HR 0 0 0 0 10 RAIN SHWRS IS LAL 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 HAINES 3 2 2 4 4 4 4 3 4 3 2 2 3 2 2 2 3 3 MIX HGT 4 2 <1 <1 <1 <1 2 4 4 3 1 <1 <1 <1 3 4 5 1 T WIND DIR NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW T WIND SPD 29 11 8 6 6 18 18 18 18 19 6 4 3 3 14 12 11 4 DISPERSION FR PR PR PR PR PR VP VP VP VP VP VP ADI 82 8 5 3 3 18 47 47 51 13 3 2 1 3 56 50 45 2 MAX LVORI 1 2 3 3 3 2 1 1 1 2 2 3 3 3 1 1 1 2 DATE 05/27 Tue 05/28/13 Wed 05/29/13 Thu 05/30/13 Fri 05/31/13 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 72 56 81 60 84 61 86 63 88 TEMP 67 66 60 62 77 74 64 65 80 76 67 67 82 78 68 69 84 79 DEWPT 45 50 54 56 56 60 57 58 58 62 59 61 60 63 60 62 60 65 RH 45 56 81 81 48 62 78 78 47 62 75 81 47 60 76 78 44 62 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS B1 B2 B2 B1 B1 B1 B1 SC SC SC SC FW SC SC FW FW SC SC POP 12HR 30 30 30 10 20 10 10 10 20 RAIN SHWRS IS SC SC SC SC SC IS IS IS IS TSTMS IS IS IS IS IS IS IS IS $$ BELOW IS A WEATHER ELEMENT KEY FOR THIS PRODUCT 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(CAT).........................CLOUD COVER CATEGORY EXAMPLE: CL = CLEAR; FW = FEW; SC = SCATTERED; BK = BROKEN; OV = OVERCAST CLOUDS(%)...........................CLOUD COVER AS A PERCENTAGE 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(CAT)............................LIGHTNING ACTIVITY LEVEL HAINES(CAT).........................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 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(CAT).....................AVERAGE CLOUD COVER CATEGORY POP 12HR(%).........................PROBABILITY FOR ACCUMULATING PRECIPITATION WEATHER... SEE DAY 1 THROUGH 3 WEATHER DESCRIPTIONS