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

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893
FOUS54 KSJT 162002
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
302 PM CDT TUE SEP 16 2014
TXZ170-171030- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 302 PM CDT TUE SEP 16 2014 DATE 09/16/14 WED 09/17/14 THU 09/18/14 FRI 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 71 86 71 87 70 TEMP 87 83 77 74 72 71 77 84 86 82 77 74 72 71 77 85 87 82 76 74 72 70 DEWPT 68 67 68 70 70 70 69 68 69 69 70 71 70 70 70 69 67 69 70 70 70 69 MAX/MIN RH 97 56 96 52 96 RH 53 60 75 86 93 97 77 60 58 66 80 89 92 96 78 60 53 64 80 89 94 96 WIND DIR E E E SE SE SE SE SE SE SE E SE SE SE S SE E E E SE SE SE WIND SPD 9 8 5 3 3 2 3 3 4 4 3 4 4 3 5 7 4 8 8 5 5 7 CLOUDS B2 B2 B2 B2 OV OV OV B2 OV OV OV OV B2 B2 B2 OV OV OV B2 B2 B2 B2 CLOUDS(%) 72 74 79 84 92100 93 86 88 90 89 88 87 86 87 88 89 89 87 85 82 80 POP 12HR 30 40 50 50 30 QPF 12HR 0.03 0.10 0.27 0.76 0.15 RAIN SHWRS SC SC SC IS IS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC TSTMS IS IS IS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC LAL 2 2 2 1 1 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 HAINES 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 MIX HGT 6 5 <1 <1 <1 2 4 6 5 5 3 <1 <1 <1 2 4 3 2 1 <1 <1 <1 T WIND DIR E E E SE S SE SE SE SE SE E SE E SE SE SE SE SE SE SE S SE T WIND SPD 12 13 12 12 6 4 4 6 9 11 12 12 5 4 4 5 8 9 11 13 11 12 SMOKE DISP GD FR PR PR PR PR PR PR FR FR PR PR PR PR PR PR PR PR PR PR PR PR DATE 09/19 SAT 09/20/14 SUN 09/21/14 MON 09/22/14 TUE 09/23/14 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 86 73 89 71 87 65 84 65 85 TEMP 84 83 76 73 87 84 75 71 85 81 69 65 82 79 69 65 83 79 DEWPT 69 69 70 69 69 68 70 70 68 67 66 63 64 62 60 58 56 54 MIN/MAX RH 57 87 53 97 52 97 49 78 36 RH 61 64 81 87 56 60 85 97 57 65 90 94 55 57 74 78 41 42 PWIND DIR SE SE SE S SE SE SE E E WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS B2 B2 B2 B2 B1 B1 B2 B2 B2 B1 B1 SC SC SC SC SC SC B1 POP 12HR 40 20 20 20 40 20 10 10 10 RAIN SHWRS SC SC IS IS IS IS IS IS SC SC IS IS TSTMS SC SC IS IS IS IS IS IS SC SC 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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