EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE BLACKSBURG VA 1013 PM EDT Tue Jun 18 2013 VAZ020-190900- NEAL_RUN PRESCRIBED BURN 38.11N 79.81W ELEV. 1900 FT 1013 PM EDT Tue Jun 18 2013 DATE 06/18/13 Wed 06/19/13 Thu 06/20/13 Fri 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 59 75 57 76 57 TEMP 64 62 60 63 69 73 74 68 63 61 59 62 69 73 75 69 64 61 59 61 DEWPT 61 59 59 59 59 58 58 56 54 53 53 54 55 55 55 55 56 57 57 57 MIN/MAX RH 99 58 88 50 100 RH 90 90 96 87 70 59 57 65 72 75 80 75 61 53 50 61 75 87 93 87 WIND DIR NW NW NW NW NW N E SE SE S S SE S S S S S S S S WIND SPD 4 5 4 3 4 5 2 1 1 1 0 1 3 5 4 3 2 0 0 2 CLOUDS SC SC SC SC SC B1 SC SC SC SC FW FW SC B1 B1 SC FW FW FW FW CLOUDS(%) 50 50 44 43 50 53 48 46 38 31 16 14 38 60 55 26 16 7 7 11 POP 12HR 30 30 10 20 10 RAIN SHWRS SC SC IS SC IS IS IS TSTMS IS IS LAL 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 HAINES 3 3 3 3 3 4 4 3 3 3 3 2 2 3 3 3 MIX HGT 3 2 2 2 5 5 5 2 <1 <1 <1 1 4 5 6 3 T WIND DIR N N N N NW N SE SE E E S E S S SW S T WIND SPD 17 16 13 9 8 4 3 5 3 3 0 3 8 10 12 8 DISPERSION VP PR VP VP VP VP VP VP VP VP VP ADI 12 11 9 27 23 19 19 3 1 1 0 7 36 30 39 4 MAX LVORI 5 5 6 3 3 2 2 3 4 5 7 4 1 2 1 3 DATE 06/21 Sat 06/22/13 Sun 06/23/13 Mon 06/24/13 Tue 06/25/13 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 76 58 78 59 79 61 80 61 81 TEMP 73 70 62 63 75 71 63 64 76 73 65 65 77 74 65 66 78 74 DEWPT 57 57 57 58 61 62 59 59 62 64 61 61 63 65 61 61 63 65 RH 57 63 84 84 62 73 87 84 62 73 87 87 62 74 87 84 60 74 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS FW SC SC FW FW B1 SC FW SC B1 SC SC SC B1 SC SC SC B1 POP 12HR 20 10 20 10 20 10 30 20 30 RAIN SHWRS IS IS IS SC IS SC SC TSTMS IS IS IS 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