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

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593
FOUS54 KSJT 232020
PFWSJT

Fire Weather Point Forecast Matrices
National Weather Service San Angelo TX
320 PM CDT Tue May 23 2017
TXZ170-241015- Mason RAWS-Mason TX 30.74N 99.19W Elev. 1463 ft 320 PM CDT Tue May 23 2017 Date 05/23/17 Wed 05/24/17 Thu 05/25/17 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 50 83 62 92 72 Temp 73 71 62 56 53 51 67 77 82 82 71 66 63 63 76 85 92 90 81 77 73 73 Dewpt 60 57 52 48 46 46 46 45 46 47 49 51 50 52 58 63 63 64 67 70 70 70 Max/Min Rh 86 27 67 38 93 Rh 64 61 70 74 77 83 47 32 28 29 46 58 62 67 54 48 38 42 63 79 90 90 Wind Dir N N N N NW W W NW W SW S S S S S S S S S S S S Wind Spd 12 11 5 3 3 4 6 8 6 4 4 5 6 8 14 14 14 12 10 11 9 9 Wind Gust Clouds B1 B1 FW FW FW FW FW CL CL CL CL CL CL FW FW CL CL FW FW SC SC B1 Clouds(%) 69 57 23 15 14 12 9 5 4 3 2 1 1 8 8 5 3 7 9 34 32 59 Pop 12hr 10 0 0 0 0 Qpf 12hr 0 0 0 0 0 RAIN SHWRS C TSTMS C LAL 1 1 1 1 1 1 1 1 1 1 Haines 5 5 6 6 6 5 6 4 6 6 Mix Hgt 2100 200 8100 9500 5600 500 3900 5700 2900 600 T Wind Dir N W W W SW S SW SW S SW T Wind Spd 8 6 16 14 9 17 31 26 20 21 Smoke Disp PR PR VG VG FR PR GD VG FR PR Date 05/26 Sat 05/27/17 Sun 05/28/17 Mon 05/29/17 Tue 05/30/17 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 96 74 94 71 88 65 84 65 81 Temp 91 94 79 74 90 93 77 71 86 85 71 65 81 82 69 66 78 78 Dewpt 69 68 72 72 70 68 70 70 68 67 66 64 64 63 65 63 65 65 Min/Max Rh 39 93 43 97 50 97 49 97 58 Rh 49 43 79 93 52 44 79 97 55 55 84 97 56 53 87 90 64 64 Pwind Dir SW S S S N NE E E E Wind Char <15 <15 <15 <15 <15 <15 <15 <15 <15 Avg Clouds SC SC FW SC B1 SC SC SC B1 B2 B2 B2 B2 B2 B1 B2 OV B2 Pop 12hr 0 10 10 20 40 40 40 30 50 $$ 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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