EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE BLACKSBURG VA 331 PM EDT Wed May 22 2013 NCZ019-230900- RAWS 312001 36.23N 81.32W ELEV. 2380 FT 331 PM EDT Wed May 22 2013 DATE 05/22/13 Thu 05/23/13 Fri 05/24/13 Sat 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 62 78 55 68 42 TEMP 80 75 69 67 65 65 71 75 76 70 63 60 58 58 63 66 67 59 52 48 45 48 DEWPT 61 62 62 61 61 61 60 58 56 55 54 53 53 52 44 37 35 35 36 36 36 35 MIN/MAX RH 93 50 93 30 74 RH 52 64 78 81 87 87 68 55 50 59 72 78 83 80 50 34 30 40 54 63 70 60 WIND DIR S S S SW SW SW SW W W W NW NW NW NW NW NW NW NW NW NW NW NW WIND SPD 6 8 6 8 6 4 5 6 6 8 6 6 9 12 14 16 14 12 9 6 6 6 WIND GUST 26 28 26 CLOUDS B2 B2 B2 OV OV B2 B1 B1 B1 B2 B1 B1 B1 B1 SC FW FW CL CL CL CL CL CLOUDS(%) 76 73 87 95 93 76 65 60 65 71 69 65 66 61 43 22 10 3 2 2 0 1 POP 12HR 60 70 20 10 0 RAIN SHWRS SC SC SC SC SC NM NM NM SC IS IS TSTMS SC SC SC SC SC SC SC SC SC LAL 3 2 2 3 2 3 3 3 3 1 1 1 1 1 1 1 1 HAINES 5 3 3 3 3 3 3 3 4 4 3 4 3 3 3 2 4 3 MIX HGT 5 2 2 2 2 2 3 5 7 3 <1 <1 1 <1 2 3 4 4 T WIND DIR S S SW SW SW SW W W W W NW NW NW NW N N N N T WIND SPD 16 17 18 21 24 19 13 13 16 14 18 21 31 39 41 34 32 34 DISPERSION PR PR PR PR PR PR PR PR FR PR PR PR ADI 53 24 12 25 16 35 36 57 59 20 12 15 35 81113 99 94 46 MAX LVORI 1 2 4 4 4 4 3 1 1 2 3 4 4 3 1 1 1 1 DATE 05/25 Sun 05/26/13 Mon 05/27/13 Tue 05/28/13 Wed 05/29/13 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 71 48 72 52 71 55 76 58 75 TEMP 66 63 53 53 68 65 57 57 68 66 59 60 72 69 62 62 73 70 DEWPT 33 39 40 44 45 49 49 50 53 55 54 55 57 57 55 58 55 58 RH 29 41 61 71 43 56 75 77 59 68 83 84 59 66 78 87 53 66 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS FW FW SC SC B1 B1 B2 OV OV B2 B2 B2 B2 B2 B2 B2 B1 B1 POP 12HR 10 5 5 10 40 40 40 30 20 RAIN SHWRS IS SC SC IS SC SC SC IS IS TSTMS IS 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