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

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FOUS54 KSJT 302017
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
317 PM CDT SAT JUL 30 2016
TXZ170-311015- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 317 PM CDT SAT JUL 30 2016 DATE 07/30/16 SUN 07/31/16 MON 08/01/16 TUE 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 97 75 98 73 TEMP 95 93 84 79 76 73 84 93 97 95 86 81 78 75 85 94 98 95 85 80 76 73 DEWPT 63 63 65 68 69 69 69 65 62 64 66 69 69 69 67 62 58 57 60 64 67 67 MAX/MIN RH 87 32 81 27 83 RH 35 37 54 69 79 87 62 40 32 36 51 67 74 81 55 35 28 28 43 59 75 83 WIND DIR S S SE S S S S S S S S S S S S S S S S S S S WIND SPD 8 9 4 6 4 3 8 9 10 10 10 11 9 8 10 10 10 10 9 10 8 4 CLOUDS SC SC SC SC SC B1 SC FW SC FW FW SC SC SC FW FW FW FW FW FW FW FW CLOUDS(%) 46 34 31 28 41 55 50 25 27 16 24 32 33 35 23 11 10 8 9 9 14 19 POP 12HR 5 10 5 0 0 QPF 12HR 0 0 0 0 0 RAIN SHWRS S TSTMS S LAL 1 1 1 1 1 1 1 1 1 1 HAINES 5 3 3 5 5 4 5 6 5 5 MIX HGT 2900 300 5200 7200 3100 400 5600 7800 3300 400 T WIND DIR S S S S S S S S SE S T WIND SPD 9 4 13 16 9 6 13 17 9 5 SMOKE DISP PR PR GD VG PR PR GD VG PR PR DATE 08/02 WED 08/03/16 THU 08/04/16 FRI 08/05/16 SAT 08/06/16 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 98 72 99 73 98 74 97 74 96 TEMP 94 95 79 72 95 96 80 73 94 96 80 74 94 95 80 74 93 94 DEWPT 60 58 66 68 63 60 67 69 64 61 69 70 65 62 69 70 65 63 MIN/MAX RH RH 32 29 64 87 35 30 65 87 37 32 68 87 39 34 69 86 39 36 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 CL FW FW CL FW FW FW FW FW FW FW SC FW FW SC SC POP 12HR 0 0 0 0 5 5 5 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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