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

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FOUS54 KSJT 150152 AAA
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES...UPDATED
NATIONAL WEATHER SERVICE SAN ANGELO TX
752 PM CST SUN DEC 14 2014
TXZ170-151015- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 752 PM CST SUN DEC 14 2014 DATE 12/14/14 MON 12/15/14 TUE 12/16/14 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 44 67 35 57 43 TEMP 56 51 48 45 49 59 67 58 47 40 39 36 40 50 57 52 47 45 44 44 DEWPT 56 51 47 41 39 32 26 31 32 33 33 30 32 31 33 33 35 35 37 36 MAX/MIN RH 100 21 87 40 79 RH 98100 98 88 68 36 21 36 56 78 81 80 75 48 40 48 63 67 76 73 WIND DIR SW SW W W W NW NW N N NE N N NE NE E E E SE SE SE WIND SPD 3 5 7 5 5 10 8 4 2 1 2 3 4 5 5 3 4 5 4 4 CLOUDS SC FW FW FW FW FW FW FW FW FW FW FW SC SC B1 B2 B2 B2 B2 B2 CLOUDS(%) 28 23 18 13 14 14 14 14 15 15 17 16 27 48 56 74 80 80 83 83 POP 12HR 10 0 0 5 10 QPF 12HR 0 0 0 0 0 RAIN SHWRS SC TSTMS LAL 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 HAINES 4 3 5 4 4 4 4 4 4 4 4 4 4 4 4 3 3 2 3 3 MIX HGT 1 <1 <1 <1 1 3 4 2 1 <1 <1 <1 <1 2 3 2 <1 <1 <1 <1 T WIND DIR SW SW W W W NW NW N N NE NE NE E E E E SE SE SE SE T WIND SPD 16 9 10 10 12 17 13 10 11 6 11 6 12 11 14 11 16 10 13 9 SMOKE DISP PR PR PR PR PR FR FR PR PR PR PR PR PR PR PR PR PR PR PR PR DATE 12/17/14 THU 12/18/14 FRI 12/19/14 SAT 12/20/14 SUN 12/21/14 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 54 48 64 46 58 37 56 36 55 TEMP 52 52 49 50 59 58 48 46 55 51 39 37 51 50 38 36 50 51 DEWPT 42 46 48 49 52 48 47 44 45 40 38 34 35 34 35 34 36 36 MIN/MAX RH 66 100 58 98 54 96 45 95 49 RH 69 79 97 96 77 68 97 92 70 65 94 88 55 55 90 91 60 57 PWIND DIR SE S S SE NW N N E SE WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS B2 B2 B2 B2 B2 B2 B2 B2 SC SC SC FW FW SC FW SC SC SC POP 12HR 40 40 40 40 30 10 5 5 5 RAIN SHWRS SC SC SC SC SC SC SC SC SC SC TSTMS SC SC SC SC 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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