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

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755
FOUS54 KSJT 241010
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
410 AM CST MON NOV 24 2014
TXZ170-242245- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 410 AM CST MON NOV 24 2014 DATE MON 11/24/14 TUE 11/25/14 WED 11/26/14 UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 CST 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MAX/MIN 60 32 61 34 69 TEMP 37 46 59 60 52 41 37 34 33 44 60 61 53 43 39 36 35 49 68 69 60 DEWPT 31 31 25 23 24 24 25 25 25 27 29 28 28 28 28 28 26 27 29 30 32 MIN/MAX RH 24 76 28 73 23 RH 79 55 27 24 34 50 61 70 74 51 31 28 38 55 64 72 69 43 23 23 35 WIND DIR NW NW N NE E S S SW W W W W NW W SW W SW W W W W WIND SPD 4 4 4 1 2 3 3 3 3 4 7 9 7 3 4 5 8 10 10 8 3 CLOUDS FW FW FW FW FW FW FW FW FW FW FW FW CL CL CL CL CL CL CL CL CL CLOUDS(%) 9 9 7 7 15 15 22 22 14 14 19 19 4 4 4 4 4 4 4 4 1 POP 12HR 0 0 0 0 0 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 HAINES 4 4 4 4 4 4 4 5 5 5 5 5 5 4 4 5 4 4 4 4 4 MIX HGT <1 3 6 6 2 <1 <1 <1 <1 4 9 10 <1 <1 <1 <1 <1 1 2 4 <1 T WIND DIR NW N N N N S S SW W W W NW NW W SW W SW W W W NW T WIND SPD 8 12 11 5 3 4 4 4 5 2 9 17 4 3 6 6 8 11 14 12 2 SMOKE DISP PR PR FR PR PR PR PR PR PR PR GD EX PR PR PR PR PR PR PR FR PR DATE THU 11/27/14 FRI 11/28/14 SAT 11/29/14 SUN 11/30/14 UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 CST 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 MIN/MAX 38 69 42 69 47 70 47 69 TEMP 44 39 68 61 47 43 68 62 51 48 69 63 51 48 68 64 DEWPT 31 31 37 38 39 41 47 46 48 48 52 51 51 48 55 52 MAX/MIN RH 75 31 96 44 100 53 100 57 RH 60 73 32 43 74 94 47 56 88 100 55 64100 100 62 65 PWIND DIR SW S S S S S S S WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS CL CL CL CL CL FW SC FW FW FW SC FW FW SC SC SC POP 12HR 0 0 0 5 5 5 5 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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