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

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379
FOUS54 KSJT 291955
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
255 PM CDT TUE JUL 29 2014
TXZ170-301015- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 255 PM CDT TUE JUL 29 2014 DATE 07/29/14 WED 07/30/14 THU 07/31/14 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 71 98 72 94 71 TEMP 93 92 84 78 74 71 84 96 98 96 87 80 76 72 83 92 94 92 84 78 74 71 DEWPT 63 65 65 66 66 64 64 59 56 55 58 61 63 66 66 65 65 64 65 65 65 64 MAX/MIN RH 79 24 81 37 79 RH 35 41 53 66 75 79 50 29 25 25 37 52 64 81 58 41 38 39 52 64 73 79 WIND DIR E E E SE S S S S S S S S S S SW SW NW NE NE NE NE NE WIND SPD 7 10 7 5 4 3 9 12 12 11 11 11 9 5 3 2 4 8 8 7 7 7 CLOUDS SC B1 B1 B1 B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 CLOUDS(%) 46 57 54 51 55 60 55 51 49 48 44 48 52 55 57 59 62 65 65 64 65 65 POP 12HR 10 5 10 30 20 QPF 12HR 0 0 0 0.01 0.07 RAIN SHWRS IS SC SC SC SC IS IS IS IS IS TSTMS IS SC SC SC SC IS IS IS IS IS LAL 2 1 1 1 1 1 1 1 1 1 1 1 1 3 3 3 3 2 2 2 2 2 HAINES 5 5 5 5 4 5 4 4 5 5 4 4 4 4 4 3 5 MIX HGT 8 5 <1 <1 <1 <1 3 6 7 4 <1 <1 <1 <1 2 5 7 6 <1 <1 <1 <1 T WIND DIR E E SE SE S S S S S S S S S S SW NW N NE NE NE NE NE T WIND SPD 10 11 10 6 5 5 17 16 17 17 10 18 16 10 8 4 3 5 5 11 11 10 SMOKE DISP GD FR PR PR PR PR FR GD VG FR PR PR PR PR PR PR PR PR PR PR PR PR DATE 08/01 SAT 08/02/14 SUN 08/03/14 MON 08/04/14 TUE 08/05/14 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 91 70 92 69 92 70 93 70 92 TEMP 89 90 76 70 90 91 76 69 90 91 77 70 91 92 77 70 91 91 DEWPT 64 59 63 65 61 59 62 60 61 59 60 64 58 57 61 64 60 58 MIN/MAX RH 36 84 33 73 34 81 30 81 32 RH 44 36 64 84 38 35 62 73 38 35 57 81 33 32 58 81 37 33 PWIND DIR NE E E E E E E SE SE WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC POP 12HR 20 20 20 10 10 10 10 10 10 RAIN SHWRS IS IS IS IS IS IS TSTMS IS IS IS IS IS IS $$ 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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