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

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036
FOUS54 KSJT 292018
PFWSJT

Fire Weather Point Forecast Matrices
National Weather Service San Angelo TX
318 PM CDT Sat Apr 29 2017<br>

TXZ170-301015-
Mason RAWS-Mason TX
30.74N  99.19W Elev. 1463 ft
318 PM CDT Sat Apr 29 2017

Date           04/29/17      Sun 04/30/17            Mon 05/01/17            Tue
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                      46          72          46          87          58
Temp          85 77 64 57 51 46 54 62 70 71 58 51 48 48 66 79 86 84 70 64 61 59
Dewpt         60 53 49 45 40 36 34 32 31 30 35 35 36 36 39 37 38 39 45 47 49 50
Max/Min Rh                   71          21          68          18          75
Rh            43 43 58 64 66 68 46 32 23 22 42 54 63 63 37 22 18 20 41 54 65 72
Wind Dir       W NW NW NW NW NW NW NW NW NW NW  S SW  S SW SW SW  S  S  S  S  S
Wind Spd       5 19 19 16 13 12 13 14 12 10  3  2  3  3 11 12 11  8  5  8  8  4
Wind Gust
Clouds        B1 B1 B2 B2 B1 SC FW FW CL CL CL CL CL CL CL CL CL CL CL FW FW FW
Clouds(%)     62 64 71 78 53 28 18  8  4  1  0  1  1  3  0  0  0  0  1 11 19 20
Pop 12hr                     40           5           0           0           0
Qpf 12hr                   0.24           0           0           0           0
RAIN SHWRS     S  C  C  C  C
TSTMS          S  S  S  S  S
LAL                     2     2     1     1     1     1     1     1     1     1
Haines                  5     5     4     6     6     6     6     6     6     6
Mix Hgt              4200  2400  6600  9400  5600   200  5900  9200  3600   500
T Wind Dir             NW    NW    NW     W    NW     S    SW    SW     S     S
T Wind Spd             27    24    29    27     6     6    25    23    19    18
Smoke Disp             GD    FR    EX    EX    GD    PR    VG    EX    FR    PR


Date           05/02  Wed 05/03/17  Thu 05/04/17  Fri 05/05/17  Sat 05/06/17
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          87      67    84      53    77      51    82      56    83
Temp          82 84   70 68 83 76   61 53 71 74   56 52 77 80   62 57 78 81
Dewpt         46 53   66 66 60 53   50 46 40 36   41 42 39 42   48 50 45 46
Min/Max Rh       28      97    41      80    24      71    23      80    27
Rh            28 34   87 93 46 45   67 77 32 25   57 69 25 26   60 77 31 29
Pwind Dir         S       S    NW       N     N      NE    SW      SE     S
Wind Char       <15     <15   <15     <15   <15     <15   <15     <15   <15
Avg Clouds    FW FW   SC B1 B1 SC   SC SC FW FW   FW CL CL CL   CL CL FW FW
Pop 12hr          0       5    50      20     5       0     0       0     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 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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