Fire Weather Point Forecast Matrices
Mason RAWS
Issued by NWS San Angelo, TX

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353
FOUS54 KSJT 231006
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
506 AM CDT SUN AUG 23 2015
TXZ170-232215- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 506 AM CDT SUN AUG 23 2015 DATE SUN 08/23/15 MON 08/24/15 TUE 08/25/15 UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 CDT 3HRLY 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 MAX/MIN 99 74 97 74 97 TEMP 74 86 95 99 96 87 81 77 74 85 94 97 95 86 80 77 74 85 94 97 94 DEWPT 70 71 65 62 61 65 66 69 68 69 64 62 62 63 63 66 66 67 63 62 63 MIN/MAX RH 30 82 32 76 32 RH 87 61 37 30 32 49 61 76 82 60 37 32 34 47 56 70 76 56 36 32 35 WIND DIR S S S SE SE SE S S SW W E E SE SE SE S SW SW E SE SE WIND SPD 3 8 6 6 8 3 5 3 3 3 4 6 6 3 3 2 3 3 3 4 5 CLOUDS FW FW FW FW FW FW FW FW FW SC SC SC SC SC SC SC SC SC SC SC B1 CLOUDS(%) 24 21 17 16 15 17 20 20 20 34 32 33 34 34 40 40 38 38 39 39 51 POP 12HR 5 0 20 10 20 QPF 12HR 0 0 0.01 0 0 RAIN SHWRS S S S S S S S S TSTMS S S S S S S S S LAL 1 1 1 1 2 2 1 1 2 2 HAINES 4 5 5 3 4 5 5 5 5 5 MIX HGT 7100 10400 6700 200 8300 10100 6000 100 7700 8900 T WIND DIR S SE SE S SW SE S SW S E T WIND SPD 12 11 9 8 4 8 6 5 5 5 DATE WED 08/26/15 THU 08/27/15 FRI 08/28/15 SAT 08/29/15 UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 CDT 6HRLY 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 MIN/MAX 72 96 71 95 70 95 70 95 TEMP 79 72 92 93 78 71 91 92 77 70 91 93 77 70 91 93 DEWPT 64 65 63 61 65 65 61 54 57 59 54 51 58 63 59 55 MAX/MIN RH RH 61 79 38 35 65 81 37 28 51 68 29 25 52 78 34 28 PWIND DIR S E SE SE S S S S WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS B1 SC SC SC SC FW FW FW SC SC SC FW SC SC SC SC POP 12HR 10 10 5 5 5 5 5 5 $$ 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 HUMIDITY RH(%)...............................RELATIVE HUMIDITY WIND DIR(8 POINT COMPASS)...........20 FT. WIND DIRECTION WIND DIR DEG(DEGREES)...............20 FT. WIND DIRECTION IN TENS OF DEGREES RELATIVE TO DUE NORTH. EXAMPLE: 09 = 90 DEGREES = EAST; 18 = 180 DEGREES = SOUTH; 27 = 270 DEGREES = WEST; 36 = 360 DEGREES = NORTH WIND SPD(MPH).......................20 FT. WIND SPEED WIND GUST(MPH)......................20 FT. WIND GUST WIND CHILL..........................WIND CHILL TEMPERATURE HEAT INDX...........................HEAT INDEX CLOUDS(CAT).........................CLOUD COVER CATEGORY EXAMPLE: CL = CLEAR; FW = FEW; SC = SCATTERED; B1 = MOSTLY CLOUDY; B2 = CONSIDERABLE CLOUDS; OV = OVERCAST CLOUDS(%)...........................CLOUD COVER AS A PERCENTAGE POP 12HR(%).........................PROBABILITY FOR ACCUMULATING PRECIPITATION QPF 12HR(IN)........................LIQUID EQUIVALENT PRECIPITATION AMOUNT WEATHER... TYPE... RAIN...........RAIN RAIN SHWRS.....RAIN SHOWERS TSTMS..........THUNDERSTORMS DRIZZLE........DRIZZLE SNOW...........SNOW SNOWSHWRS......SNOW SHOWERS SLEET..........SLEET FLURRIES.......FLURRIES FRZG RAIN......FREEZING RAIN FRZG DRZL......FREEZING DRIZZLE COVERAGE... S..............SLIGHT CHANCE C..............CHANCE L..............LIKELY O..............OCCASIONAL D..............DEFINITE AR.............AREAS PA.............PATCHY OBVIS...............................OBSTRUCTION TO VISIBILITY TYPE... F..............FOG PF.............PATCHY FOG F+.............DENSE FOG H..............HAZE BS.............BLOWING SNOW K..............SMOKE BD.............BLOWING DUST AF.............VOLCANIC ASHFALL LAL(CAT)............................LIGHTNING ACTIVITY LEVEL MIX HGT(FT AGL).....................MIXING HEIGHT T WIND DIR(8 POINT COMPASS).........TRANSPORT WIND DIRECTION T WIND SPD(MPH).....................TRANSPORT WIND SPEED ADI (INDEX).........................ATMOSPHERIC DISPERSION INDEX DISPERSION..........................LDSI MAX LVORI...........................LVORI STA PRES (INCHES MERCURY)...........STATION PRESSURE ADI (INDEX).........................ATMOSPHERIC DISPERSION INDEX CEILING (FT)........................CEILING STABILITY (CAT).....................PASQUILL TURNER STABILITY WATCH/WARNING/ADVISORY... EXAMPLE: W = WARNING; Y = ADVISORY; A = WATCH IN EFFECT FOR THE INDICATED HOUR 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).......................20 FT. 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

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