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

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FOUS54 KSJT 302025
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
325 PM CDT TUE AUG 30 2016
TXZ170-311015- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 325 PM CDT TUE AUG 30 2016 DATE 08/30/16 WED 08/31/16 THU 09/01/16 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 71 91 71 92 72 TEMP 87 85 77 75 73 71 80 88 91 87 78 75 73 71 80 88 92 88 79 76 74 72 DEWPT 69 68 69 69 69 69 71 69 67 69 69 69 70 69 71 69 68 69 69 69 70 69 MAX/MIN RH 93 45 93 45 91 RH 54 57 76 83 87 93 74 54 45 54 74 82 89 93 73 54 45 53 72 80 88 91 WIND DIR E E NE NE N N NE NE NE NE E NE N N NE NE NE NE E E E NE WIND SPD 9 6 3 2 2 2 3 4 5 5 3 2 1 2 3 3 6 6 3 2 2 2 CLOUDS B2 B2 B2 B2 B2 B1 B1 B2 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 B1 B1 B1 CLOUDS(%) 77 77 71 76 71 65 68 70 67 58 58 47 47 49 49 64 64 64 64 52 52 56 POP 12HR 30 20 10 20 10 QPF 12HR 0.01 0.03 0 0.04 0.13 RAIN SHWRS C C C S S S S S S S S C TSTMS C C C S S S S S S S S C LAL 2 1 2 2 1 1 2 2 1 1 HAINES 4 3 4 4 4 3 4 4 4 3 MIX HGT 3500 300 8000 8500 4800 200 7800 9400 4500 500 T WIND DIR NE N NE E SE NW NE E E E T WIND SPD 5 3 9 10 4 4 5 10 9 5 SMOKE DISP PR PR GD GD PR PR FR GD FR PR DATE 09/02 SAT 09/03/16 SUN 09/04/16 MON 09/05/16 TUE 09/06/16 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 90 71 90 70 90 72 89 72 90 TEMP 87 86 75 71 87 86 74 70 87 86 76 72 86 86 75 72 87 87 DEWPT 69 68 70 70 70 69 70 70 68 68 70 70 70 70 71 70 68 68 MIN/MAX RH RH 55 54 84 97 56 56 86100 53 55 83 93 59 59 87 93 53 53 PWIND DIR E SE SE SE SE SE SE SE S WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS B1 B1 B1 B1 B1 B1 SC SC SC FW FW SC B1 SC SC B1 B1 SC POP 12HR 30 10 30 10 5 5 20 5 10 $$ 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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