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

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FOUS54 KSJT 312028
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
328 PM CDT FRI JUL 31 2015
TXZ170-011100- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 328 PM CDT FRI JUL 31 2015 DATE 07/31/15 SAT 08/01/15 SUN 08/02/15 MON 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 73 99 73 99 73 TEMP 101100 89 82 77 73 85 96 99 97 88 82 77 73 86 95 99 97 88 82 77 73 DEWPT 61 62 64 66 66 66 62 59 58 57 59 60 61 61 65 59 59 57 58 60 62 65 MAX/MIN RH 79 26 66 26 76 RH 27 29 45 58 70 79 46 29 26 27 38 47 58 66 50 30 27 27 36 48 60 76 WIND DIR E E E SE NE NE E E E E SE SE S S S SE SE SE SE S S S WIND SPD 8 9 4 2 1 2 3 5 8 9 4 3 3 3 5 4 6 8 6 5 5 5 CLOUDS SC SC SC FW SC SC FW SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC CLOUDS(%) 42 42 33 24 27 31 22 39 46 40 42 44 42 41 40 40 39 39 38 37 41 44 POP 12HR 10 20 10 10 5 QPF 12HR 0 0.01 0 0 0 RAIN SHWRS C S S S S S S TSTMS C S S S S S S LAL 2 1 2 2 1 1 1 1 1 1 HAINES 5 4 4 5 5 6 6 6 6 5 MIX HGT 6200 600 7900 9200 5800 300 8200 9600 5900 200 T WIND DIR E E E E SE S S SE SE S T WIND SPD 11 5 10 11 6 3 8 8 6 5 DATE 08/03 TUE 08/04/15 WED 08/05/15 THU 08/06/15 FRI 08/07/15 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 98 73 98 73 98 72 100 73 100 TEMP 94 96 81 73 94 96 81 73 94 96 81 72 95 98 82 73 95 98 DEWPT 59 60 64 66 60 60 68 68 63 61 66 69 63 60 67 67 60 59 MIN/MAX RH RH 31 30 56 79 32 30 65 84 36 32 60 90 35 29 62 83 31 28 PWIND DIR S S S S S S S S S WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS SC SC SC SC SC FW FW FW SC FW FW FW SC FW FW FW FW FW POP 12HR 0 0 0 0 0 0 0 0 0 $$ 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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