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

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624
FOUS54 KSJT 232032
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
232 PM CST SUN NOV 23 2014
TXZ170-241030- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 232 PM CST SUN NOV 23 2014 DATE 11/23/14 MON 11/24/14 TUE 11/25/14 WED UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MIN/MAX 36 61 33 60 35 TEMP 77 59 46 41 38 37 46 60 57 49 40 36 35 34 44 58 56 49 41 38 36 36 DEWPT 36 35 33 32 29 26 28 25 22 24 28 29 28 27 29 30 29 28 28 28 27 25 MAX/MIN RH 71 24 78 32 69 RH 23 41 60 70 70 65 49 27 25 38 62 74 76 76 55 34 35 44 59 67 69 65 WIND DIR W W N NW NW NW W N E E SE S SW W W NW NW NW W W SW SW WIND SPD 18 10 11 7 3 3 2 3 2 3 2 2 3 4 7 8 7 5 4 4 4 5 CLOUDS FW CL CL CL FW FW FW FW FW FW FW FW FW FW FW FW FW CL CL CL CL CL CLOUDS(%) 9 5 1 0 9 9 9 7 7 14 14 15 15 13 13 16 16 5 5 3 3 2 POP 12HR 0 0 0 0 0 QPF 12HR 0 0 0 0 0 LAL 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 HAINES 5 6 4 4 4 5 5 5 4 5 5 6 5 5 4 6 5 5 5 5 4 4 MIX HGT 5 <1 1 1 <1 <1 <1 5 5 2 <1 <1 <1 <1 <1 4 4 <1 <1 <1 <1 <1 T WIND DIR W W N NW W NW NW N NW SE S SW SW SW SW W NW NW NW W SW SW T WIND SPD 29 11 26 17 6 8 10 9 6 3 5 5 5 5 9 17 25 8 6 6 5 5 SMOKE DISP VG PR PR PR PR PR PR PR PR PR PR PR PR PR PR GD GD PR PR PR PR PR DATE 11/26/14 THU 11/27/14 FRI 11/28/14 SAT 11/29/14 SUN 11/30/14 UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 MAX/MIN 67 40 69 42 69 45 66 47 68 TEMP 65 55 43 41 67 57 45 43 67 59 48 46 65 58 49 48 67 61 DEWPT 29 30 31 30 36 38 38 41 47 46 48 46 49 49 48 48 55 52 MIN/MAX RH 24 69 30 96 45 100 54 100 63 RH 26 38 62 66 32 49 76 94 49 63100 100 56 72 96 100 65 72 PWIND DIR SW SW SW S S S S S S WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS CL CL CL CL CL CL CL FW SC FW FW SC SC SC SC SC B1 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 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... IS.............ISOLATED SC.............SCATTERED NM.............NUMEROUS O..............OCCASIONAL S..............SLIGHT CHANCE C..............CHANCE L..............LIKELY WD.............WIDESPREAD 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 HAINES(CAT).........................HAINES INDEX 10K WIND DIR(8 POINT COMPASS).......10000 FOOT WIND DIRECTION 10K WIND SPD(MPH)...................10000 FOOT WIND SPEED MIX HGT(THOUSANDS OF FT AGL)........MIXING HEIGHT EXAMPLE: 6 = 6000 FEET; 12 = 12000 FEET; <1 = LESS THAN 1000 FEET T WIND DIR(8 POINT COMPASS).........TRANSPORT WIND DIRECTION T WIND SPD(MPH).....................TRANSPORT WIND SPEED SMOKE DISP(CAT(KT-FT))...................SMOKE DISPERSION CATEGORY EXAMPLE: PR = POOR; FR = FAIR; GD = GOOD; VG = VERY GOOD; EX = EXCELLENT FOSBERG.............................FOSBERG FIRE WEATHER INDEX 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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