EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES NATIONAL WEATHER SERVICE BLACKSBURG VA 958 PM EDT Wed May 22 2013 NCZ001-230900- BLUFF_MOUNTAIN PRESCRIBED BURN 36.39N 81.55W ELEV. 4700 FT 958 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 58 69 49 58 40 TEMP 63 61 60 61 65 67 68 62 57 54 52 51 54 56 57 52 47 44 42 45 DEWPT 59 59 58 58 56 54 53 52 52 51 50 48 41 35 32 32 33 34 34 33 MIN/MAX RH 97 59 100 39 75 RH 87 93 93 90 73 63 59 70 83 90 93 89 61 45 38 46 58 68 73 62 WIND DIR S S SW SW W W W W W NW NW NW NW NW NW NW NW NW NW NW WIND SPD 9 9 6 5 8 10 10 9 8 8 11 13 16 17 17 13 10 6 6 6 WIND GUST 28 29 28 CLOUDS B2 OV OV B2 B1 B1 B2 B2 B2 B2 B2 B2 B1 SC FW FW CL CL CL CL CLOUDS(%) 81 90 94 72 69 69 71 75 80 84 87 80 55 28 14 7 4 3 1 2 POP 12HR 70 70 30 20 0 RAIN SHWRS NM NM SC NM NM SC SC SC SC IS IS IS TSTMS NM NM SC SC SC SC SC LAL 3 3 2 3 3 3 3 1 1 1 1 1 1 1 1 HAINES 3 3 3 3 3 4 4 4 3 3 3 2 2 2 4 3 MIX HGT <1 <1 <1 <1 2 3 5 2 2 1 <1 <1 <1 2 2 2 T WIND DIR S S SW SW NW W W W W NW NW NW N N NW NW T WIND SPD 21 10 9 5 24 17 19 19 8 8 36 40 46 41 39 42 DISPERSION PR PR PR PR PR PR FR FR FR PR PR ADI 19 9 8 6 55 47 59 22 8 8 33 64102 92 87 57 MAX LVORI 4 5 6 6 3 1 1 3 4 5 4 4 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 61 45 65 50 66 52 69 55 70 TEMP 58 55 49 49 62 60 53 53 63 61 55 56 67 64 58 58 68 66 DEWPT 31 36 38 42 42 47 46 49 51 53 52 53 54 55 53 56 52 56 RH 36 49 66 77 48 62 77 86 65 75 90 90 63 73 83 93 57 70 WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS FW FW SC SC B1 B1 B2 B2 OV B2 B2 B2 B1 B2 B2 B1 B1 SC 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