EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE BLACKSBURG VA 638 PM EDT Tue Jun 18 2013 NCZ003-190900- RAWS 310301 36.48N 80.86W ELEV. 1300 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 61 80 61 80 61 TEMP 70 66 64 63 66 73 77 79 73 68 65 63 66 73 77 78 73 67 65 63 65 DEWPT 67 66 64 63 63 64 63 63 62 61 60 60 60 61 62 62 63 63 63 63 62 MIN/MAX RH 100 57 93 57 100 RH 90100100100 90 73 62 58 68 78 84 90 81 66 60 58 71 87 93100 90 WIND DIR N N N N NW N N NE E E E E E SE SE S S S SW SW SW WIND SPD 5 2 2 3 3 5 4 3 1 1 2 1 2 4 5 5 3 2 0 0 1 CLOUDS B1 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 SC SC SC B1 B1 SC SC SC SC SC CLOUDS(%) 56 78 86 75 66 60 57 57 57 59 60 50 44 50 55 52 42 37 32 32 34 POP 12HR 40 20 10 20 10 RAIN SHWRS IS SC SC SC 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 4 4 4 4 4 4 4 3 3 3 3 3 3 MIX HGT 3 2 2 2 2 5 6 6 <1 <1 <1 <1 1 4 6 6 4 T WIND DIR N N N N N N N N E E E E E SE S S S T WIND SPD 28 21 19 19 17 16 11 6 1 1 2 1 6 5 8 9 9 DISPERSION PR VP VP VP VP VP VP VP VP VP VP VP ADI 19 10 9 9 32 50 48 47 1 1 1 1 10 20 25 28 4 MAX LVORI 4 8 5 5 3 1 1 1 4 6 8 9 5 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 79 61 83 62 83 64 85 66 86 TEMP 76 73 65 66 79 76 67 67 80 77 68 69 81 78 70 70 83 79 DEWPT 63 64 60 60 64 64 61 62 65 65 63 64 67 67 64 66 68 68 RH 64 73 84 81 60 66 81 84 60 67 84 84 63 69 81 87 61 69 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS SC SC SC FW FW SC SC FW SC B1 SC SC SC B1 B1 B1 SC B1 POP 12HR 20 10 20 10 20 5 20 10 30 RAIN SHWRS IS IS IS IS SC SC TSTMS IS IS IS IS 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