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

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507
FOUS54 KSJT 231918
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
218 PM CDT SAT AUG 23 2014
TXZ170-241015- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 218 PM CDT SAT AUG 23 2014 DATE 08/23/14 SUN 08/24/14 MON 08/25/14 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 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 72 97 73 99 73 TEMP 96 94 82 78 75 72 82 94 97 95 83 79 76 73 84 96 99 97 84 79 76 73 DEWPT 57 58 62 65 67 68 70 65 60 59 62 64 65 65 64 62 60 58 60 62 63 64 MAX/MIN RH 87 29 77 27 74 RH 27 30 51 66 78 87 67 39 30 31 49 61 70 77 51 33 28 28 44 56 65 74 WIND DIR S S S S S S S S SE SE SE S S S S SE SE SE SE SE S S WIND SPD 11 8 4 7 4 3 7 8 9 7 5 4 3 3 4 7 8 8 5 3 3 2 CLOUDS FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW SC SC CLOUDS(%) 10 9 9 10 17 25 24 19 19 23 23 24 24 25 24 24 23 23 24 25 26 26 POP 12HR 5 5 5 0 5 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 1 HAINES 5 5 4 3 4 5 5 4 5 5 5 4 4 4 5 4 5 5 5 5 5 MIX HGT 7 6 2 <1 <1 <1 2 6 7 7 <1 <1 <1 <1 3 7 8 8 2 <1 <1 <1 T WIND DIR S S S S S S S S S S S S S S S SE SE SE SE S S SW T WIND SPD 16 17 5 9 6 5 11 11 11 12 4 5 4 3 5 10 11 12 8 5 5 6 SMOKE DISP GD GD PR PR PR PR PR GD GD GD PR PR PR PR PR GD GD GD PR PR PR PR DATE 08/26 WED 08/27/14 THU 08/28/14 FRI 08/29/14 SAT 08/30/14 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 101 72 97 73 96 68 95 68 95 TEMP 97 98 79 72 94 95 79 73 93 93 75 68 92 93 75 68 92 93 DEWPT 61 59 64 69 67 65 67 69 65 62 64 65 63 61 63 65 62 59 MIN/MAX RH 27 89 35 87 34 91 35 90 31 RH 31 28 61 89 41 37 68 87 41 36 70 91 39 36 68 90 37 32 PWIND DIR SE SE S S SE E NE E E WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS SC SC SC SC SC SC B1 SC SC B1 B1 B1 B1 B1 SC SC SC SC POP 12HR 5 5 10 5 20 20 20 10 10 RAIN SHWRS IS IS IS IS IS IS TSTMS IS IS 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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