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

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934
FOUS54 KSJT 181005
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
405 AM CST TUE NOV 18 2014
TXZ170-182215- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 405 AM CST TUE NOV 18 2014 DATE TUE 11/18/14 WED 11/19/14 THU 11/20/14 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 53 34 62 40 65 TEMP 21 32 48 53 47 40 38 36 34 44 58 62 55 47 45 43 40 49 61 65 60 DEWPT 15 16 16 17 18 19 20 24 28 34 39 40 40 40 39 39 39 44 50 51 52 MIN/MAX RH 24 83 43 100 59 RH 76 51 27 24 32 43 48 61 78 68 50 44 58 76 79 86 97 85 67 60 75 WIND DIR S S S S S S S SW SW SW SW SW SW SW SW SW SW S S S S WIND SPD 3 7 9 9 7 7 7 7 8 10 12 10 4 3 3 2 3 8 11 10 8 CLOUDS CL CL CL CL FW FW FW FW FW FW FW FW FW FW SC SC B1 B1 FW FW SC CLOUDS(%) 4 4 5 5 11 11 22 22 16 16 17 17 21 21 46 46 55 55 21 21 36 POP 12HR 0 0 0 0 10 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 5 4 4 3 4 4 3 4 4 4 4 4 3 4 4 4 4 4 4 2 4 MIX HGT <1 2 3 5 1 <1 <1 <1 <1 1 3 4 <1 <1 <1 <1 <1 2 3 4 2 T WIND DIR S S S S S S SW SW SW SW SW SW S SW SW W W SW S S S T WIND SPD 3 10 13 16 13 6 8 11 10 19 19 14 5 5 4 3 2 1 12 13 14 SMOKE DISP PR PR PR GD PR PR PR PR PR PR FR FR PR PR PR PR PR PR PR FR PR DATE FRI 11/21/14 SAT 11/22/14 SUN 11/23/14 MON 11/24/14 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 50 68 56 68 48 72 45 62 TEMP 54 50 65 64 59 56 66 61 53 48 68 63 51 45 59 54 DEWPT 52 50 55 54 57 56 57 44 38 35 40 34 34 31 30 29 MAX/MIN RH 100 63 100 50 63 28 59 30 RH 95 100 70 71 95 100 73 53 58 60 36 34 52 59 33 38 PWIND DIR S S SE SW W W NW N WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS SC SC B1 SC SC B2 B2 B1 FW CL CL FW FW FW FW FW POP 12HR 10 30 50 60 5 5 5 10 RAIN SHWRS SC SC SC SC NM NM TSTMS SC SC NM NM $$ 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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