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

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202
FOUS54 KSJT 030932
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
432 AM CDT FRI JUL 3 2015
TXZ170-032215- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 432 AM CDT FRI JUL 3 2015 DATE FRI 07/03/15 SAT 07/04/15 SUN 07/05/15 UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 CDT 3HRLY 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 MAX/MIN 90 71 90 72 91 TEMP 71 80 86 90 86 79 75 73 71 80 86 90 86 79 75 74 72 81 87 91 87 DEWPT 69 69 66 65 65 68 70 70 69 70 67 67 66 69 70 71 70 70 65 68 66 MIN/MAX RH 44 94 46 93 46 RH 93 69 51 44 50 70 85 91 94 73 53 46 52 72 83 90 93 70 48 47 50 WIND DIR S S S S S SE S S S S S S S SE S S S S S S S WIND SPD 7 10 10 11 10 8 9 8 5 9 9 11 11 9 9 8 8 11 15 16 14 CLOUDS B1 B1 SC SC SC SC B1 B1 B2 B2 B1 B1 B1 B1 B1 B1 B2 B2 SC SC SC CLOUDS(%) 62 51 40 41 42 47 52 63 74 74 54 54 51 51 54 54 72 72 43 43 33 POP 12HR 5 10 5 5 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 3 4 3 3 3 3 5 4 4 4 3 4 4 3 3 5 4 4 3 4 4 MIX HGT <1 2 4 6 6 <1 <1 <1 <1 2 5 7 5 1 <1 <1 <1 2 4 6 6 T WIND DIR S S S S S S S S S S S S S S S S S S S S S T WIND SPD 10 16 19 19 18 21 14 17 9 14 16 19 20 24 17 20 12 20 28 28 29 SMOKE DISP PR PR GD VG VG PR PR PR PR PR GD VG GD PR PR PR PR FR VG EX EX DATE MON 07/06/15 TUE 07/07/15 WED 07/08/15 THU 07/09/15 UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 CDT 6HRLY 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 MIN/MAX 72 92 73 92 73 92 72 94 TEMP 76 72 88 88 77 73 88 88 77 73 88 88 76 72 90 89 DEWPT 71 70 64 65 70 70 65 65 69 69 65 64 69 68 59 61 MAX/MIN RH 92 40 90 41 87 39 87 32 RH 84 92 45 47 79 90 46 47 76 87 46 44 79 87 36 39 PWIND DIR S S S S S S S S WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS SC B1 SC SC SC B1 B1 SC B1 B1 B1 SC SC SC SC FW POP 12HR 5 5 10 10 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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