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

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FOUS54 KSJT 042128
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
328 PM CST WED MAR 4 2015
TXZ170-051015- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 328 PM CST WED MAR 4 2015 DATE 03/04/15 THU 03/05/15 FRI 03/06/15 SAT 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 27 34 23 43 30 TEMP 38 31 29 30 27 29 31 33 30 25 24 23 23 29 36 41 39 32 31 30 30 DEWPT 36 31 26 25 24 21 17 19 20 20 19 20 18 22 22 24 25 29 27 29 27 MAX/MIN RH 100 56 88 45 96 RH 92100 88 81 88 72 56 57 66 81 81 88 81 75 57 51 58 88 86 96 88 WIND DIR N N N N N N N N NE N N N N NE E E E E SE SE SE WIND SPD 17 18 17 17 17 16 14 11 10 5 3 3 3 3 3 3 3 3 3 2 3 CLOUDS OV OV OV OV OV B2 SC SC SC SC FW FW FW SC SC SC SC SC B1 B1 B1 CLOUDS(%) 100100100100100 74 48 38 28 26 23 24 24 30 35 36 37 46 54 60 65 POP 12HR 100 10 5 5 10 QPF 12HR 0.35 0 0 0 0 FRZG RAIN D D D RAIN RAIN SHWRS O SLEET D D D LAL 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 HAINES 2 2 2 2 2 2 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 MIX HGT 2 <1 <1 <1 <1 2 3 3 1 <1 <1 <1 <1 <1 1 2 <1 <1 <1 <1 <1 T WIND DIR N N N N N N N NE N N N N N NE NE NE E E E SE E T WIND SPD 27 31 33 32 33 32 25 24 18 9 8 6 6 8 6 6 6 5 4 4 4 SMOKE DISP FR PR PR PR PR GD GD FR PR PR PR PR PR PR PR PR PR PR PR PR PR WINTER WEATH Y Y DATE 03/07/15 SUN 03/08/15 MON 03/09/15 TUE 03/10/15 WED 03/11/15 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 52 37 57 40 62 40 66 42 69 TEMP 44 47 38 37 50 51 41 40 54 55 42 40 57 58 44 42 60 62 DEWPT 29 30 34 34 39 40 40 37 42 42 41 39 44 41 44 41 45 42 MIN/MAX RH 43 92 50 99 48 100 43 100 40 RH 54 52 85 89 65 65 96 90 64 61 97 96 62 54100 96 58 49 PWIND DIR SE SE SE E NE SE SE SE S WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS B1 B1 B2 B2 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC FW POP 12HR 10 20 30 10 10 10 10 10 10 RAIN SHWRS IS IS 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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