EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE BLACKSBURG VA 229 PM EST Mon Nov 23 2009 NCZ001-240900- RAWS 310101 36.42N 81.29W ELEV. 3000 FT 229 PM EST Mon Nov 23 2009 DATE 11/23/09 Tue 11/24/09 Wed 11/25/09 Thu UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 EST 3HRLY 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 MIN/MAX TEMP 39 56 39 55 36 TEMP 44 44 43 42 40 40 48 53 54 49 46 44 43 40 48 53 53 47 44 41 40 37 DEWPT 43 43 42 41 40 39 42 45 45 46 45 44 43 40 45 46 45 43 42 41 40 37 MIN/MAX RH 100 70 100 72 100 RH 96 96 96 96100 96 80 74 71 89 96100100100 89 77 74 86 93100100100 WIND DIR NE NE N NW W W S E NE N SE E E SE W SW SW W NW NW NW NW WIND SPD 4 2 2 2 1 1 1 1 1 1 1 1 0 1 1 4 6 6 5 5 5 6 CLOUDS OV OV OV OV B2 B2 B1 B1 B2 B2 OV OV OV OV B2 B2 B2 SC SC B1 B1 B2 CLOUDS(%) 96 92 94 92 86 77 69 60 71 82 91 98100100 85 76 76 48 45 56 67 78 POP 12HR 10 10 30 20 20 DRIZZLE AR AR ? ? ? ? ? RAIN S S C S RAIN SHWRS IS IS IS IS SC LAL 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 HAINES 2 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 4 MIX HGT <1 <1 <1 <1 <1 <1 <1 3 3 <1 <1 <1 <1 <1 <1 3 3 <1 T WIND DIR E NE NE S S S N NE SE S SE S S S SW W W S T WIND SPD 9 9 8 0 0 0 9 3 2 11 12 12 8 0 4 14 19 0 DISPERSION VP VP VP VP VP VP VP VP PR PR PR PR DATE 11/26 Fri 11/27/09 Sat 11/28/09 Sun 11/29/09 Mon 11/30/09 UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 EST 6HRLY 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 MAX/MIN TEMP 51 32 41 27 46 27 51 30 49 TEMP 49 43 37 32 39 35 31 28 43 38 33 29 47 42 36 31 46 43 DEWPT 37 35 32 27 24 22 23 24 24 23 23 23 25 28 28 26 30 34 RH 63 73 82 81 54 59 72 85 47 54 66 78 42 57 72 81 53 70 WIND SPD <15 <15 15> 15> 15> 15> <15 <15 <15 AVG CLOUDS B2 B2 B2 B2 B2 B2 B1 SC SC SC SC SC SC SC SC B1 B1 B1 POP 12HR 30 40 30 20 5 5 5 20 30 RAIN SHWRS SC SC SC SC SC SC IS IS IS SC SC SNOWSHWRS SC SC IS IS IS 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; 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