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

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290
FOUS54 KSJT 312329 AAA
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES...UPDATED
NATIONAL WEATHER SERVICE SAN ANGELO TX
529 PM CST SAT JAN 31 2015
TXZ170-011015- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 529 PM CST SAT JAN 31 2015 DATE 01/31/15 SUN 02/01/15 MON 02/02/15 TUE 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 53 63 29 53 34 TEMP 55 54 53 53 53 56 61 63 56 41 34 33 29 35 48 53 49 41 37 36 34 DEWPT 52 52 52 53 51 51 52 45 38 37 30 26 23 23 22 23 26 27 28 28 27 MAX/MIN RH 100 46 89 31 79 RH 89 93 96100 91 83 72 51 50 85 85 76 78 61 35 31 40 57 69 71 74 WIND DIR SE SE S S SW SW NW N N N N N N NE NE SE SE S S S S WIND SPD 8 4 7 4 8 7 12 15 17 11 10 8 7 4 3 3 4 5 5 4 4 CLOUDS OV OV OV OV OV B2 B2 B2 B1 B1 SC SC FW FW FW SC SC SC SC SC SC CLOUDS(%) 99 99 97 97 94 84 73 73 67 53 38 29 19 19 18 26 33 33 44 44 26 POP 12HR 70 20 5 5 5 QPF 12HR 0.08 0.02 0 0 0 RAIN RAIN SHWRS NM NM NM NM IS IS IS LAL 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 HAINES 3 3 3 3 4 3 4 3 2 4 4 4 4 3 2 3 3 4 2 3 MIX HGT <1 <1 <1 <1 <1 <1 2 3 3 3 1 <1 <1 1 2 2 2 <1 <1 <1 <1 T WIND DIR SE S S SW SW W NW N N N N NE NE NE NE NE S SE S S S T WIND SPD 13 6 10 10 11 17 16 17 23 26 27 19 11 16 10 2 8 5 5 4 4 SMOKE DISP PR PR PR PR PR PR PR FR FR FR PR PR PR PR PR PR PR PR PR PR PR DATE 02/03/15 WED 02/04/15 THU 02/05/15 FRI 02/06/15 SAT 02/07/15 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 60 42 65 38 53 31 60 37 67 TEMP 55 57 45 42 61 60 42 38 50 49 34 31 55 55 40 37 61 63 DEWPT 34 40 43 42 50 47 42 37 32 32 31 31 36 37 38 37 42 43 MIN/MAX RH 42 100 54 100 45 100 42 100 42 RH 45 54 93 100 67 61100 96 51 53 89 100 49 50 92 100 49 48 PWIND DIR S S S W N N SE S SW WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS SC B1 SC SC SC SC B1 B1 SC SC FW FW FW FW FW FW FW FW POP 12HR 20 20 10 10 10 5 5 5 5 RAIN SHWRS 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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