EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE BLACKSBURG VA 951 PM EDT Thu May 23 2013 VAZ020-240900- RAWS 441801 37.99N 79.76W ELEV. 2160 FT 951 PM EDT Thu May 23 2013 DATE 05/23/13 Fri 05/24/13 Sat 05/25/13 Sun 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 51 62 36 66 39 TEMP 61 57 54 54 58 61 61 53 46 42 39 43 54 61 64 57 49 45 42 45 DEWPT 54 52 49 42 39 33 31 31 30 29 29 29 28 26 27 29 30 32 33 34 MIN/MAX RH 83 32 72 24 77 RH 78 83 83 64 49 35 32 43 53 60 67 57 36 26 24 34 48 60 70 65 WIND DIR W W NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW WIND SPD 4 6 11 16 18 20 19 13 11 9 6 6 10 12 11 8 5 3 3 3 WIND GUST 27 28 33 32 23 CLOUDS B2 B2 B1 SC SC SC SC CL CL CL CL CL FW FW FW CL FW FW SC SC CLOUDS(%) 79 87 66 50 37 26 27 5 2 0 0 0 11 22 15 5 9 19 29 35 POP 12HR 40 10 0 0 0 RAIN SHWRS IS IS TSTMS LAL 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 HAINES 3 3 3 3 2 2 3 2 3 4 4 4 4 4 4 4 MIX HGT 2 <1 <1 1 3 4 4 4 2 1 <1 2 3 4 6 5 T WIND DIR W W NW NW NW NW NW NW NW N N NW NW NW NW NW T WIND SPD 19 17 23 32 39 35 34 35 35 29 23 24 24 24 26 27 DISPERSION VP PR FR FR FR PR PR PR PR VP VP ADI 13 12 26 72111116105 48 24 20 10 54 86 71 82 19 MAX LVORI 4 4 3 1 1 1 1 1 2 2 3 1 1 1 1 2 DATE 05/26 Mon 05/27/13 Tue 05/28/13 Wed 05/29/13 Thu 05/30/13 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 67 46 70 51 75 56 80 57 84 TEMP 63 60 51 52 66 63 55 57 71 69 61 62 76 72 62 63 79 75 DEWPT 34 37 42 44 45 52 49 49 53 58 55 56 58 61 59 60 62 64 RH 34 42 71 74 47 67 80 75 53 68 81 81 54 68 90 90 56 69 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS SC SC SC SC SC SC SC SC B1 B1 SC SC SC B1 SC SC SC B1 POP 12HR 5 5 30 20 30 20 30 20 30 RAIN SHWRS IS SC IS SC IS IS SC IS IS SC TSTMS 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