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

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379
FOUS54 KSJT 252137
PFWSJT

Fire Weather Point Forecast Matrices
National Weather Service San Angelo TX
337 PM CST Sat Feb 25 2017<br>

TXZ128-261015-
Hamby RAWS-Callahan TX
32.50N  99.62W Elev. 1900 ft
337 PM CST Sat Feb 25 2017

Date           02/25/17      Sun 02/26/17            Mon 02/27/17            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
CST 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06

Min/Max                      42          71          49          77          52
Temp             52 46 44 43 42 49 62 71 68 57 53 51 49 56 69 77 74 61 57 54 52
Dewpt            25 28 30 32 34 38 43 40 40 43 45 45 44 45 37 34 33 38 40 41 41
Max/Min Rh                   79          32          83          20          69
Rh               35 49 57 65 73 66 50 32 36 59 74 80 83 66 31 21 22 42 53 61 66
Wind Dir         SE SE SE  S  S  S SW SW SW  S  S SW SW SW SW SW SW  S  S SW SW
Wind Spd          5  6 10 10 10 13 14 12  9  8  8  8  6 10 11 13  9  8  9  8  8
Wind Gust
Clouds           CL CL CL SC SC B1 B1 B1 B1 B1 SC FW SC SC FW FW FW FW SC SC B1
Clouds(%)         4  4  2 26 39 63 69 63 55 64 45 22 45 27 22 15 15 18 31 38 51
Pop 12hr                      0           5           5           0           0
Qpf 12hr                      0           0           0           0           0
LAL                     1     1     1     1     1     1     1     1     1     1
Haines                  4     4     6     6     6     6     6     5     6     6
Mix Hgt              1800   400  2800  7100  3000   300  4100  6800  2900   300
T Wind Dir             SE     S     S     S     S    SW    SW    SW     S    SW
T Wind Spd              9    12    19    18    11     9    13    21     9     9
Smoke Disp             PR    PR    FR    VG    PR    PR    GD    EX    PR    PR


Date           02/28/17  Wed 03/01/17  Thu 03/02/17  Fri 03/03/17  Sat 03/04/17
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00
CST 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18

Max/Min          80      49    59      34    60      38    66      44    67
Temp          72 76 55   49 56 56 39   34 52 57 42   38 58 63 48   44 60 65
Dewpt         40 34 34   30 27 14 18   18 17 17 23   26 25 25 33   36 42 44
Min/Max Rh       19      48    18      51    18      62    21      76    42
Rh            31 22 45   48 32 19 42   51 25 21 46   62 28 23 56   73 51 46
Pwind Dir        SW      SW    NW       N    SE      SE     S       S     S
Wind Char       <15     <15   15>     <15   <15     <15   <15     <15   <15
Avg Clouds    SC SC SC   SC FW FW FW   FW FW FW FW   FW FW FW FW   SC SC SC
Pop 12hr          5       5     0       0     0       0     5       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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