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

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472
FOUS54 KSJT 271931
PFWSJT

Fire Weather Point Forecast Matrices
National Weather Service San Angelo TX
231 PM CDT Sat May 27 2017<br>

TXZ128-281015-
Hamby RAWS-Callahan TX
32.50N  99.62W Elev. 1900 ft
231 PM CDT Sat May 27 2017

Date           05/27/17      Sun 05/28/17            Mon 05/29/17            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                      66          82          61          84          61
Temp          99 98 82 79 71 66 70 76 82 80 71 67 64 62 73 80 83 82 70 65 63 62
Dewpt         57 54 61 64 63 60 60 60 60 58 60 58 58 56 55 50 48 48 54 55 56 58
Max/Min Rh                   81          46          87          29          87
Rh            25 23 49 60 76 81 71 58 47 47 68 73 81 81 53 35 30 31 57 70 78 87
Wind Dir      SW SW  S  S NW  N  N  N  N NE NE NE NE NE  E  E  E  E SE SE  S SE
Wind Spd      10 10  8 10 11 11 12 13 10 10  5  5  4  4  8  8  9  9  5  5  3  3
Wind Gust
Clouds        SC FW SC SC SC B1 B2 B1 B1 B1 B1 SC FW SC FW FW FW FW CL FW FW SC
Clouds(%)     33 24 31 37 50 63 73 60 63 53 65 44 24 37 22 21 15 23  4 23 15 50
Pop 12hr                     10          20          20          10           5
Qpf 12hr                      0        0.02        0.02           0           0
RAIN SHWRS                    S  S  S  S  S  S  S  S                          C
TSTMS                         S  S  S  S  S  S  S  S                          C
LAL                     1     1     2     2     2     2     1     1     1     1
Haines                  6     6     4     3     3     5     5     6     5     4
Mix Hgt              8700  1500  4800  6000  4100   400  7100  8300  5000   200
T Wind Dir             SW    NW     N    NE    NE    NE     E     E     E    SE
T Wind Spd             13    19    20    17    10     6    14    13    10     5
Smoke Disp             VG    PR    GD    GD    FR    PR    GD    GD    FR    PR


Date           05/30  Wed 05/31/17  Thu 06/01/17  Fri 06/02/17  Sat 06/03/17
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          85      64    81      63    81      65    83      66    86
Temp          79 83   68 64 77 77   67 63 77 79   70 65 77 80   70 67 81 84
Dewpt         59 59   63 63 63 62   64 62 65 63   64 64 66 64   65 64 66 63
Min/Max Rh       41      97    53      97    54      97    55      93    48
Rh            50 44   84 97 62 60   90 97 67 58   81 97 69 58   84 90 60 49
Pwind Dir        SE      SE    SE      SE    SE       S     S       S     S
Wind Char       <15     <15   <15     <15   <15     <15   <15     <15   <15
Avg Clouds    SC B1   B1 B2 B2 B2   OV OV B2 B2   B2 B2 B2 B2   B2 B2 B1 B1
Pop 12hr         30      40    50      40    50      30    30      30    30

$$

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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