EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE BLACKSBURG VA 1247 PM EDT Fri May 24 2013 NCZ001-242100- RAWS 310101 36.42N 81.29W ELEV. 3000 FT 1247 PM EDT Fri May 24 2013 DATE Fri 05/24/13 Sat 05/25/13 Sun 05/26/13 UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 EDT 3HRLY 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 MAX/MIN TEMP 56 39 59 43 63 TEMP 54 55 51 45 43 41 43 51 55 58 53 49 47 45 48 56 60 63 58 DEWPT 34 31 29 29 28 27 25 26 26 27 28 29 31 33 35 36 37 38 39 MAX/MIN RH 39 62 30 68 40 RH 46 40 42 53 55 57 49 37 32 30 38 46 53 62 60 47 42 39 49 WIND DIR NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW W NW NW WIND SPD 21 20 17 17 12 12 9 9 9 8 6 5 4 4 4 4 5 3 2 WIND GUST 41 32 28 28 CLOUDS CL CL CL CL CL CL CL FW SC SC SC B1 B2 B2 B2 B2 B2 B1 B1 CLOUDS(%) 5 0 0 0 0 2 4 9 37 42 35 52 70 75 75 74 70 64 60 POP 12HR 10 0 0 0 5 LAL 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 HAINES 4 4 3 4 4 5 5 4 4 4 5 4 4 4 5 3 4 4 4 MIX HGT 3 3 2 1 <1 <1 <1 1 2 3 1 <1 <1 <1 <1 2 4 4 <1 T WIND DIR NW NW NW NW N NW NW NW NW NW NW NW NW NW NW NW W W NW T WIND SPD 34 32 39 40 39 12 9 16 18 16 14 5 4 4 4 6 11 11 2 DISPERSION GD GD FR FR PR PR VP VP VP ADI 91 84 53 36 35 11 7 24 50 48 7 4 3 3 5 12 31 42 1 MAX LVORI 1 1 1 1 1 2 2 2 1 1 2 2 2 3 3 2 1 1 2 DATE Mon 05/27/13 Tue 05/28/13 Wed 05/29/13 Thu 05/30/13 UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 EDT 6HRLY 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 MIN/MAX TEMP 49 67 53 70 56 75 58 77 TEMP 52 53 64 62 57 57 67 65 59 60 72 69 62 63 74 71 DEWPT 40 40 46 51 48 51 53 56 53 55 56 58 56 57 59 60 RH 63 61 52 67 72 80 61 73 80 84 57 68 81 81 59 68 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS B1 B2 OV OV OV B2 B2 B2 B1 SC B1 B1 SC SC SC B1 POP 12HR 5 40 40 30 30 30 20 30 RAIN SHWRS SC SC IS SC SC IS SC IS SC SC TSTMS SC SC 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