EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE BLACKSBURG VA 951 PM EDT Thu May 23 2013 NCZ019-240900- RAWS 312001 36.23N 81.32W ELEV. 2380 FT 951 PM EDT Thu May 23 2013 DATE 05/23/13 Fri 05/24/13 Sat 05/25/13 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 54 67 40 69 45 TEMP 63 60 58 58 63 65 66 58 51 47 44 47 58 65 68 61 54 51 48 51 DEWPT 55 52 52 45 41 34 32 32 32 32 32 31 28 26 27 30 33 35 37 39 MIN/MAX RH 83 28 66 21 72 RH 75 75 80 62 44 31 28 37 48 56 62 53 32 23 21 31 45 54 65 63 WIND DIR NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW N N N WIND SPD 4 8 12 16 18 19 17 13 11 9 8 8 9 10 9 6 5 4 2 4 WIND GUST 23 28 28 31 27 CLOUDS B2 B1 SC SC FW FW FW CL CL CL CL CL FW FW SC SC SC SC B1 B1 CLOUDS(%) 73 54 42 38 23 17 18 0 0 0 0 0 9 20 28 35 42 50 60 65 POP 12HR 40 10 0 0 0 RAIN SHWRS SC IS TSTMS LAL 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 HAINES 3 3 3 2 3 2 3 3 4 5 5 5 5 4 4 4 MIX HGT 3 <1 <1 2 3 4 4 4 2 1 <1 1 2 4 5 4 T WIND DIR NW NW NW NW N N NW NW N N N NW NW NW NW NW T WIND SPD 17 19 25 41 41 35 31 33 34 24 23 23 21 17 19 19 DISPERSION VP PR FR FR FR PR PR PR PR VP VP ADI 12 17 23 99121109 90 44 23 16 15 39 63 62 78 9 MAX LVORI 3 3 3 1 1 1 1 1 2 2 2 1 1 1 1 2 DATE 05/26 Mon 05/27/13 Tue 05/28/13 Wed 05/29/13 Thu 05/30/13 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 51 72 55 76 58 81 59 83 TEMP 68 65 56 56 69 66 59 60 73 70 62 63 77 73 64 65 80 76 DEWPT 39 41 45 46 49 54 51 54 56 58 56 57 59 60 58 60 61 62 RH 34 41 66 69 49 65 75 81 55 66 81 81 54 64 81 84 52 62 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B1 SC B1 B1 SC SC SC B1 POP 12HR 10 10 40 30 30 20 30 20 30 RAIN SHWRS SC SC SC IS IS SC IS IS SC IS IS SC TSTMS SC SC SC SC $$ 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