EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE BLACKSBURG VA 315 PM EDT Sun May 19 2013 NCZ001-200900- RAWS 310101 36.42N 81.29W ELEV. 3000 FT 315 PM EDT Sun May 19 2013 DATE 05/19/13 Mon 05/20/13 Tue 05/21/13 Wed 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 74 61 77 61 TEMP 64 63 61 60 60 62 68 71 73 69 66 64 63 65 71 74 76 71 67 65 63 64 DEWPT 61 61 59 59 59 59 61 60 61 61 60 59 59 59 61 59 59 59 59 58 59 60 MIN/MAX RH 98 62 89 55 94 RH 90 93 93 96 96 90 78 68 66 76 81 84 87 81 71 59 56 66 75 78 87 87 WIND DIR SE S S SW W W W W SW SW W W NW NW W SW SW SW SW SW SW SW WIND SPD 3 3 1 1 2 3 5 4 5 4 1 2 2 3 5 6 6 4 4 4 4 5 CLOUDS OV OV OV OV OV OV B2 B1 B2 B2 B1 SC SC B1 SC SC SC B1 B1 SC B1 B1 CLOUDS(%) 100100 97 94 93 89 78 69 74 70 64 45 40 57 50 45 50 65 52 50 55 55 POP 12HR 70 40 30 30 30 RAIN SHWRS O NM SC SC SC SC SC SC SC SC IS IS IS SC SC SC SC SC SC SC TSTMS IS IS IS SC SC SC SC SC LAL 3 3 3 1 1 2 2 3 3 1 1 1 1 1 1 3 3 HAINES 3 3 3 3 3 3 3 3 3 3 4 5 5 5 4 4 4 3 MIX HGT 2 1 <1 <1 <1 <1 2 3 3 1 1 <1 <1 <1 2 4 5 2 T WIND DIR S S SW SW W W W NW W SW SW W NW NW SW SW SW SW T WIND SPD 6 12 13 1 2 10 13 11 11 10 18 2 2 3 2 6 9 10 DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP ADI 11 14 13 1 1 12 28 35 28 7 8 1 1 2 7 29 38 7 MAX LVORI 5 5 5 10 10 5 3 3 3 4 4 6 6 5 3 2 1 3 DATE 05/22 Thu 05/23/13 Fri 05/24/13 Sat 05/25/13 Sun 05/26/13 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 61 71 58 70 55 65 54 67 TEMP 73 71 65 64 70 67 61 61 68 65 58 57 63 61 56 57 65 63 DEWPT 61 61 59 60 60 59 56 57 55 54 51 50 49 51 46 47 49 51 RH 66 71 81 87 71 75 84 87 63 68 77 77 60 70 69 69 56 65 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS B1 B1 B1 B2 B2 B2 B1 B1 B1 B1 SC SC SC B1 SC B1 B1 B1 POP 12HR 40 40 50 50 40 20 20 20 10 RAIN SHWRS SC SC SC SC SC SC SC SC SC SC IS IS IS IS IS IS TSTMS SC SC SC SC SC SC SC SC SC 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