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

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FOUS54 KSJT 012004
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
303 PM CDT WED OCT 1 2014
TXZ170-021015- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 303 PM CDT WED OCT 1 2014 DATE 10/01/14 THU 10/02/14 FRI 10/03/14 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 CDT 3HRLY 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 MIN/MAX 73 94 57 85 51 TEMP 95 89 81 77 75 73 81 90 94 90 72 66 62 60 67 79 84 79 64 59 56 53 DEWPT 66 66 66 68 71 71 72 70 66 64 61 58 56 54 51 46 44 45 44 43 44 45 MAX/MIN RH 95 41 83 25 73 RH 39 46 61 74 89 95 76 53 41 43 69 76 80 81 56 31 25 30 48 55 64 73 WIND DIR S S S S S S S S SW W W N N N NE NE NE NE NE NE E E WIND SPD 9 8 4 8 9 7 12 11 10 5 4 5 5 4 8 10 9 4 3 3 3 3 CLOUDS FW FW FW FW B1 B2 B1 SC SC B1 SC SC SC FW FW FW FW FW FW CL CL CL CLOUDS(%) 23 23 23 23 60 73 58 46 40 58 48 38 30 24 17 9 8 7 6 5 4 4 POP 12HR 5 30 30 0 0 QPF 12HR 0 0.10 0.02 0 0 RAIN SHWRS SC SC SC SC SC SC TSTMS SC SC SC SC SC SC LAL 1 1 1 1 1 3 3 3 3 3 3 1 1 1 1 1 1 1 1 1 1 1 HAINES 3 3 3 4 5 4 5 5 4 4 5 4 5 5 5 5 5 5 5 3 4 MIX HGT 6 4 <1 <1 <1 <1 2 4 7 4 <1 <1 <1 <1 2 4 5 4 <1 <1 <1 <1 T WIND DIR S S S S S S S S SW SW W N N N NE N NE NE NE N NE E T WIND SPD 14 18 12 14 13 10 21 21 18 14 10 12 11 4 14 16 16 13 4 3 5 3 SMOKE DISP GD GD PR PR PR PR FR GD VG FR PR PR PR PR PR FR GD FR PR PR PR PR DATE 10/04 SUN 10/05/14 MON 10/06/14 TUE 10/07/14 WED 10/08/14 UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 CDT 6HRLY 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 MAX/MIN 82 57 87 63 86 64 87 64 86 TEMP 75 75 63 59 81 80 68 65 81 81 69 66 82 82 69 66 81 81 DEWPT 36 44 45 52 55 56 58 60 60 59 63 62 62 59 64 63 63 59 MIN/MAX RH 23 79 35 84 41 86 42 90 44 RH 24 33 53 79 42 44 69 84 48 47 81 86 51 46 84 90 54 47 PWIND DIR SE S S S S S S S S WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS CL FW FW SC SC SC SC SC SC SC FW SC SC SC SC SC SC SC POP 12HR 0 0 5 10 10 10 10 10 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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