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

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FOUS54 KSJT 211956
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
256 PM CDT MON JUL 21 2014
TXZ170-221015- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 256 PM CDT MON JUL 21 2014 DATE 07/21/14 TUE 07/22/14 WED 07/23/14 THU 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 74 98 73 97 73 TEMP 97 94 84 79 76 74 85 94 98 94 86 78 76 73 83 93 97 94 85 78 76 73 DEWPT 67 66 68 69 70 71 71 64 62 60 63 65 66 67 65 64 61 58 60 61 62 64 MAX/MIN RH 90 31 81 30 73 RH 38 40 60 72 82 90 62 38 32 33 47 66 71 81 56 39 31 31 43 57 62 73 WIND DIR SE SE SE SE SE SE SE SE E E E SE S W N NE NE NE E E E SE WIND SPD 10 9 5 5 3 2 3 4 7 8 4 3 2 3 3 4 5 5 4 2 2 3 CLOUDS FW FW FW FW FW FW FW SC SC FW FW SC SC SC SC SC SC SC SC SC SC SC CLOUDS(%) 20 22 19 18 20 24 22 27 26 24 25 27 28 29 28 28 27 26 27 27 28 29 POP 12HR 0 0 0 5 5 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 4 4 4 3 3 3 4 3 5 5 5 5 4 5 5 5 5 MIX HGT 9 8 <1 <1 <1 <1 2 7 9 7 <1 <1 <1 <1 1 7 9 7 <1 <1 <1 <1 T WIND DIR SE SE SE S S S E E E E E S SW W NW NE NE NE E SE S SW T WIND SPD 11 13 10 10 5 3 5 8 8 10 8 4 5 5 6 9 12 11 8 4 4 5 SMOKE DISP GD GD PR PR PR PR PR FR GD GD PR PR PR PR PR FR VG GD PR PR PR PR DATE 07/24 FRI 07/25/14 SAT 07/26/14 SUN 07/27/14 MON 07/28/14 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 100 74 99 73 99 73 99 75 99 TEMP 95 96 79 74 94 95 78 73 94 95 78 73 94 95 79 75 94 95 DEWPT 63 64 64 64 64 64 63 63 62 64 65 65 64 64 64 64 63 56 MIN/MAX RH 30 71 32 71 31 76 32 68 27 RH 36 35 61 71 37 36 61 71 35 36 65 76 37 36 60 68 36 28 PWIND DIR SE S S S S S S S S WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS SC FW FW SC SC SC SC FW FW FW FW FW FW FW FW SC SC SC POP 12HR 5 0 0 0 0 0 5 0 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 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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