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

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757
FOUS54 KSJT 170945
PFWSJT

Fire Weather Point Forecast Matrices
National Weather Service San Angelo TX
445 AM CDT Wed May 17 2017
TXZ170-172215- Mason RAWS-Mason TX 30.74N 99.19W Elev. 1463 ft 445 AM CDT Wed May 17 2017 Date Wed 05/17/17 Thu 05/18/17 Fri 05/19/17 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 89 68 87 69 83 Temp 64 75 82 88 87 74 68 69 70 78 85 87 85 75 70 69 69 73 77 81 82 Dewpt 62 47 39 35 41 46 63 63 66 69 69 68 67 67 68 69 69 69 68 68 67 Min/Max Rh 15 87 53 100 59 Rh 93 37 22 15 20 37 84 81 87 74 59 53 55 76 93100100 87 74 65 61 Wind Dir SW W SW SW SW S S S S S S S S SE SE S S S S S S Wind Spd 3 5 5 8 6 4 6 5 5 9 11 12 10 9 10 8 6 9 10 10 10 Wind Gust Clouds B1 FW FW FW CL FW SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B1 B2 B2 B2 Clouds(%) 51 20 8 7 4 17 46 64 63 61 68 69 66 65 55 67 76 65 86 76 80 Pop 12hr 10 10 40 40 50 Qpf 12hr 0 0 0.38 0.12 0.18 RAIN SHWRS C C C C C C C C C C C C C TSTMS C C C C C C C C C C C C C LAL 1 1 1 1 3 3 3 3 3 3 Haines 5 6 6 5 5 5 5 4 Mix Hgt 5300 7400 5200 1000 4100 5900 4000 700 2700 6000 T Wind Dir W SW S S S S S S S S T Wind Spd 12 9 17 17 20 23 27 24 21 18 Smoke Disp FR GD GD PR GD VG GD PR FR GD Date Sat 05/20/17 Sun 05/21/17 Mon 05/22/17 Tue 05/23/17 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 67 80 59 79 58 81 65 84 Temp 71 68 78 77 64 60 75 77 64 59 77 79 68 65 80 82 Dewpt 67 67 67 64 61 57 60 58 58 56 61 60 64 64 68 63 Max/Min Rh 100 60 96 49 93 49 97 51 Rh 87 97 69 64 90 90 60 52 81 90 58 52 87 97 67 53 Pwind Dir S S NE NE E SE SE SW Wind Char <15 <15 <15 <15 <15 <15 <15 <15 Avg Clouds B1 B1 B2 B2 B2 B2 B1 SC SC B1 B1 B1 B1 B2 B1 B1 Pop 12hr 40 60 50 30 10 20 20 20 $$ 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 DIR DEG(DEGREES)...............20 FT. WIND DIRECTION IN TENS OF DEGREES Relative to Due North. Example: 09 = 90 Degrees = East; 18 = 180 Degrees = South; 27 = 270 Degrees = West; 36 = 360 Degrees = North 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... S..............Slight Chance C..............Chance L..............Likely O..............Occasional 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 Mix Hgt(Ft Agl).....................Mixing Height T Wind Dir(8 Point Compass).........Transport Wind Direction T Wind Spd(mph).....................Transport Wind Speed ADI (Index).........................Atmospheric Dispersion Index Dispersion..........................LDSI Max LVORI...........................LVORI Sta Pres (Inches Mercury)...........Station Pressure ADI (Index).........................Atmospheric Dispersion Index Ceiling (Ft)........................Ceiling Stability (Cat).....................Pasquill Turner Stability 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 mpn; 15> = 15 mph or Greater Ave Clouds(Cat).....................Average Cloud Cover Category Pop 12hr(%).........................Probability for Accumulation Precipitation Weather... See Day 1 Through 3 Weather Descriptions

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