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

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462
FOUS54 KSJT 161005
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
505 AM CDT WED JUL 16 2014
TXZ170-162215- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 505 AM CDT WED JUL 16 2014 DATE WED 07/16/14 THU 07/17/14 FRI 07/18/14 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 93 72 93 72 90 TEMP 70 81 90 93 90 84 78 75 72 82 90 93 90 84 78 75 72 81 87 89 87 DEWPT 69 68 67 67 67 69 70 70 69 68 68 67 67 68 70 70 70 69 69 69 69 MIN/MAX RH 43 90 43 93 51 RH 97 64 48 43 47 61 76 84 90 63 49 43 47 59 76 84 93 68 54 52 55 WIND DIR SE SE S SE SE SE SE SE S SE S S S SE SE SE S S S SE SE WIND SPD 2 5 7 7 8 3 5 5 7 10 15 14 11 9 5 4 4 4 4 4 3 CLOUDS SC SC SC B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 CLOUDS(%) 46 48 48 51 54 56 64 71 78 77 76 73 70 76 82 83 85 74 62 57 51 POP 12HR 10 30 40 50 20 QPF 12HR 0 0 0.13 0.31 0.05 RAIN SHWRS IS IS IS SC SC SC SC SC SC SC SC SC IS IS IS IS IS TSTMS IS IS IS SC SC SC SC SC SC SC SC SC IS IS IS IS IS LAL 1 1 1 1 2 2 2 3 3 3 3 3 3 3 3 3 2 2 2 2 2 HAINES 3 3 3 3 4 4 4 5 5 3 3 3 3 3 4 4 3 3 3 3 MIX HGT <1 2 5 7 6 3 <1 <1 <1 3 6 8 5 <1 <1 <1 <1 2 4 5 3 T WIND DIR SE S S S S S S S S S S S S SE S S NE NE SE S S T WIND SPD 3 9 11 12 16 6 8 9 13 20 24 24 21 19 18 11 6 5 5 6 3 SMOKE DISP PR PR FR GD GD PR PR PR PR FR VG EX GD PR PR PR PR PR PR PR PR DATE SAT 07/19/14 SUN 07/20/14 MON 07/21/14 TUE 07/22/14 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 71 94 73 95 74 96 73 96 TEMP 76 71 91 91 79 73 92 92 80 74 93 93 80 73 93 93 DEWPT 70 70 69 67 70 72 69 66 69 70 69 63 65 69 64 61 MAX/MIN RH 98 43 97 41 87 37 87 33 RH 81 98 50 45 74 97 48 42 69 87 46 37 61 87 39 34 PWIND DIR SE S S S S S S SE WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 20 10 10 5 5 5 10 10 RAIN SHWRS IS IS TSTMS 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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