EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE BLACKSBURG VA 638 PM EDT Tue Jun 18 2013 WVZ043-190900- BLUESTONE PRESCRIBED BURN 37.59N 80.95W ELEV. 1900 FT 638 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 76 53 79 57 TEMP 68 63 62 60 63 70 73 74 67 61 58 55 59 70 75 78 72 65 62 60 62 DEWPT 61 59 58 57 59 59 57 57 57 56 55 54 54 56 57 59 60 60 59 59 58 MIN/MAX RH 94 55 100 51 100 RH 78 87 87 90 87 68 57 55 70 84 90 96 83 61 54 52 66 84 90 96 87 WIND DIR N NW NW NW NW NW NW N N E SE SE SE S S S SE SE SE SE SW WIND SPD 4 3 3 2 3 5 8 6 4 2 1 1 1 2 2 2 2 2 1 1 2 CLOUDS B1 B2 B2 B2 B1 B1 B1 SC SC SC SC FW FW SC B1 B1 SC SC FW FW FW CLOUDS(%) 59 70 81 74 63 60 57 45 42 35 27 15 14 38 60 62 46 30 14 14 20 POP 12HR 20 20 10 20 10 RAIN SHWRS IS IS IS IS IS IS IS IS IS TSTMS IS IS LAL 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 HAINES 3 3 3 3 3 3 3 4 3 4 4 4 4 3 3 5 4 MIX HGT 3 2 1 1 1 5 5 5 <1 <1 <1 <1 <1 3 5 7 2 T WIND DIR N N NW NW NW NW NW NW N E SE SE SE SW SW W S T WIND SPD 17 14 10 9 5 13 12 10 4 2 1 1 1 2 4 4 9 DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP ADI 12 7 5 5 10 44 51 45 2 1 0 0 2 7 17 19 5 MAX LVORI 4 5 5 5 4 3 1 1 4 9 10 10 7 3 2 2 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 80 58 84 63 85 64 86 65 86 TEMP 76 72 63 64 80 77 67 68 81 78 68 69 82 78 69 70 83 78 DEWPT 60 61 61 61 64 65 61 63 65 66 62 64 66 67 63 65 67 68 RH 58 68 93 90 58 67 81 84 58 67 81 84 58 69 81 84 59 71 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS SC B1 SC FW SC B1 SC FW SC B1 SC SC SC B1 B1 SC SC B1 POP 12HR 20 10 20 10 20 20 30 20 40 RAIN SHWRS IS IS IS IS SC IS 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