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

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284
FOUS54 KSJT 241957
PFWSJT

Fire Weather Point Forecast Matrices
National Weather Service San Angelo TX
257 PM CDT Fri Mar 24 2017<br>

TXZ170-251015-
Mason RAWS-Mason TX
30.74N  99.19W Elev. 1463 ft
257 PM CDT Fri Mar 24 2017

Date           03/24/17      Sat 03/25/17            Sun 03/26/17            Mon
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                      48          80          55          88          53
Temp          81 75 60 54 53 49 56 73 80 76 64 59 59 55 64 81 88 82 66 59 59 54
Dewpt         28 30 33 35 36 37 38 40 38 37 37 42 44 52 58 53 42 40 41 46 39 45
Max/Min Rh                   65          21          96          19          77
Rh            14 19 36 48 52 63 51 30 22 24 37 53 57 90 81 38 20 22 40 62 47 71
Wind Dir       W  W  W NW NW NW NW NW  W  W SE SE  S  S  S  S SW  S SW SW  W NW
Wind Spd      17 12  4  4  4  3  8  4  5  2  3  3  4  4 10 13 13  9  3  3  3  3
Wind Gust
Clouds        CL CL CL CL CL CL CL CL CL CL CL FW SC SC SC FW FW SC FW SC CL FW
Clouds(%)      4  2  2  1  1  0  0  0  0  2  0  7 26 44 29 22 12 26  9 27  5 20
Pop 12hr                      0           0           0          10          10
Qpf 12hr                      0           0           0           0           0
LAL                     1     1     1     1     1     1     1     1     1     1
Haines                  6     6     6     5     5     5     5     6     6     6
Mix Hgt              4500   200  3000  5700  3200   200  5100  7700  3100   200
T Wind Dir              W    NW    NW     W    SE     S     S    SW    SW    NW
T Wind Spd             11     6    12     9     8    11    25    25    11     5
Smoke Disp             GD    PR    PR    FR    PR    PR    VG    EX    FR    PR


Date           03/27  Tue 03/28/17  Wed 03/29/17  Thu 03/30/17  Fri 03/31/17
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          82      57    81      59    78      54    76      53    81
Temp          75 78   61 57 76 77   63 59 74 74   58 54 71 72   57 53 75 78
Dewpt         49 46   55 56 60 60   61 57 42 40   41 44 45 44   45 46 51 53
Min/Max Rh       28     100    49      93    26      69    32      80    37
Rh            40 32   81 96 58 56   93 93 32 29   53 69 39 37   64 77 43 42
Pwind Dir         N      SE    SE       S    SW       W    NW       S     S
Wind Char       <15     <15   <15     <15   <15     <15   <15     <15   <15
Avg Clouds    FW FW   FW SC SC B1   B1 B2 SC SC   SC SC SC FW   FW FW FW FW
Pop 12hr          5       5    30      50    40      20    10       5    10

$$

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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