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

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896
FOUS54 KSJT 290924
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
424 AM CDT FRI JUL 29 2016
TXZ170-292215- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 424 AM CDT FRI JUL 29 2016 DATE FRI 07/29/16 SAT 07/30/16 SUN 07/31/16 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 95 72 97 73 98 TEMP 73 83 91 95 92 82 77 74 73 84 93 97 94 83 78 75 73 85 94 98 95 DEWPT 70 70 66 62 62 65 69 69 69 70 66 62 62 64 69 70 70 69 65 62 62 MIN/MAX RH 34 90 32 89 31 RH 90 65 44 34 37 56 76 85 88 63 41 32 35 54 75 85 90 59 39 31 34 WIND DIR S SW S S S SE S S S S S S S SE S S S S S S S WIND SPD 3 5 5 8 9 5 5 3 3 6 5 8 9 4 6 3 3 6 8 9 10 CLOUDS B1 B1 SC SC SC SC SC SC B1 B1 SC SC FW FW SC SC FW FW FW FW FW CLOUDS(%) 65 56 47 48 48 44 39 46 58 53 38 38 16 16 36 36 22 22 12 12 15 POP 12HR 10 5 5 5 5 QPF 12HR 0 0 0 0 0 RAIN SHWRS S S TSTMS S S LAL 1 2 1 1 1 1 1 1 1 1 HAINES 3 5 5 6 6 5 5 4 4 5 MIX HGT 8100 9600 5200 800 5400 8700 4600 1300 6700 8300 T WIND DIR S S S S S S S S S S T WIND SPD 10 11 11 11 11 14 13 12 13 17 SMOKE DISP FR VG FR PR GD VG FR PR DATE MON 08/01/16 TUE 08/02/16 WED 08/03/16 THU 08/04/16 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 73 98 72 98 72 98 74 98 TEMP 79 73 95 94 78 72 94 95 78 72 94 95 79 74 95 95 DEWPT 69 69 62 57 64 66 59 57 66 68 64 60 66 69 64 61 MAX/MIN RH RH 72 87 34 29 62 81 31 29 66 86 36 31 65 84 36 32 PWIND DIR S S S S S S S S WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS FW FW FW FW FW FW FW FW FW FW FW CL FW FW FW FW POP 12HR 5 5 0 5 0 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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