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

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FOUS54 KSJT 282248
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FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
548 PM CDT TUE JUL 28 2015
TXZ170-291030- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 548 PM CDT TUE JUL 28 2015 DATE 07/28/15 WED 07/29/15 THU 07/30/15 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 72 99 72 99 74 TEMP 97 87 79 77 72 85 94 99 97 87 79 77 72 84 94 99 97 88 80 78 74 DEWPT 60 63 64 65 66 69 63 61 58 62 63 65 65 66 58 58 59 60 61 62 63 MAX/MIN RH 81 28 79 27 69 RH 30 45 61 68 81 60 37 30 28 43 57 68 79 55 31 27 29 39 52 58 69 WIND DIR SE SE S S S S S SE SE SE S S SW SW E E SE SE S SW W WIND SPD 10 5 6 3 3 5 5 8 6 4 3 3 1 2 4 5 5 3 3 3 3 CLOUDS FW FW FW FW FW FW FW FW FW FW FW FW FW FW SC SC SC SC SC SC SC CLOUDS(%) 13 11 8 14 19 17 19 20 20 19 17 18 20 24 28 30 33 33 29 29 35 POP 12HR 0 0 0 5 5 QPF 12HR 0 0 0 0 0 RAIN SHWRS S TSTMS S LAL 1 1 1 1 1 1 1 1 1 1 HAINES 6 5 5 6 6 5 5 5 5 5 MIX HGT 7700 900 7000 9900 9400 5600 7900 9000 8500 5000 T WIND DIR S S S SE SE S SE E SE SE T WIND SPD 23 17 10 12 13 8 6 12 12 5 DATE 07/31 SAT 08/01/15 SUN 08/02/15 MON 08/03/15 TUE 08/04/15 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 75 97 73 98 74 98 74 97 TEMP 94 96 81 75 93 95 79 73 93 96 80 74 94 96 80 74 93 95 DEWPT 62 63 67 66 63 58 61 61 59 55 58 61 57 56 59 64 59 54 MIN/MAX RH RH 36 34 63 74 37 29 54 66 32 25 47 64 30 26 49 71 32 25 PWIND DIR E E E E SE SE S S S WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS SC B1 B1 SC SC SC SC SC SC SC FW FW FW FW FW FW FW FW POP 12HR 20 20 20 10 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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