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

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987
FOUS54 KSJT 050147 AAA
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES...UPDATED
NATIONAL WEATHER SERVICE SAN ANGELO TX
847 PM CDT TUE AUG 4 2015
TXZ170-051015- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 847 PM CDT TUE AUG 4 2015 DATE 08/04/15 WED 08/05/15 THU 08/06/15 FRI UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 CDT 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 75 101 75 101 75 TEMP 88 82 78 75 87 97101100 88 81 78 75 87 97101100 88 82 78 75 DEWPT 65 67 69 70 70 65 65 63 65 67 70 68 71 65 65 61 64 66 68 68 MAX/MIN RH 85 29 81 28 81 RH 47 62 74 85 57 35 31 30 47 63 78 81 58 35 31 28 45 59 73 81 WIND DIR S S S S S S S S S S S S S S S S S S S S WIND SPD 6 6 5 4 9 8 9 10 5 10 8 8 10 9 9 10 8 10 10 6 CLOUDS FW SC SC B1 SC FW SC FW FW FW SC SC FW FW FW FW FW FW FW FW CLOUDS(%) 20 26 44 61 36 23 33 19 17 15 26 36 16 13 12 11 12 12 13 13 POP 12HR 0 0 0 0 0 QPF 12HR 0 0 0 0 0 LAL 1 1 1 1 1 1 1 1 1 HAINES 4 4 5 5 4 4 4 4 4 MIX HGT 400 6600 10200 6300 300 5900 8700 5700 500 T WIND DIR S S S S S S S S S T WIND SPD 9 10 12 10 8 10 10 11 8 DATE 08/07 SAT 08/08/15 SUN 08/09/15 MON 08/10/15 TUE 08/11/15 UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 CDT 6HRLY 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 MAX/MIN 101 75 102 75 101 75 102 76 101 TEMP 97100 82 75 98101 82 75 97100 82 75 98101 83 76 97100 DEWPT 61 59 66 68 59 57 65 67 55 54 61 66 54 54 59 64 56 55 MIN/MAX RH RH 31 26 58 79 28 24 56 76 25 22 49 73 24 22 45 66 26 23 PWIND DIR S S S S S S S S SE WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW POP 12HR 0 0 0 0 0 0 5 0 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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