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

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211
FOUS54 KSJT 291935
PFWSJT

Fire Weather Point Forecast Matrices
National Weather Service San Angelo TX
235 PM CDT Wed Mar 29 2017<br>

TXZ128-301015-
Hamby RAWS-Callahan TX
32.50N  99.62W Elev. 1900 ft
235 PM CDT Wed Mar 29 2017

Date           03/29/17      Thu 03/30/17            Fri 03/31/17            Sat
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                      47          74          53          87          58
Temp          72 70 59 54 50 47 54 64 73 71 63 59 56 53 62 74 85 83 72 66 62 58
Dewpt         43 43 42 40 41 41 42 42 42 42 42 42 42 41 43 44 40 44 49 51 52 49
Max/Min Rh                   79          32          66          20          72
Rh            35 38 53 59 71 79 64 45 33 35 46 53 59 64 50 34 20 25 44 58 70 72
Wind Dir       W NW NW NW NW  W NW NW NW NW SW  S  S  S SW SW  S  S  S  S  S  S
Wind Spd      13 14 11 10  9 10 10 11 10  5  5  9 11 10 14 12 14 11 13 17 12 11
Wind Gust
Clouds        FW B1 B1 B1 SC FW FW CL CL CL CL FW CL CL CL FW FW CL FW FW FW SC
Clouds(%)     21 53 53 52 32 13  9  4  4  3  5  7  4  3  3  7  8  5  6 15 17 30
Pop 12hr                      5           0           0           0           5
Qpf 12hr                      0           0           0           0           0
RAIN SHWRS                                                                    S
TSTMS                                                                         S
LAL                     1     1     1     1     1     1     1     1     1     1
Haines                  4     4     4     6     6     6     6     6     6     6
Mix Hgt              3200   300  7000  7700   300   200  4000  6800   600   600
T Wind Dir             NW     W     W     W     S    SW    SW     S     S     S
T Wind Spd             19     9    16    18    11    14    20    24    21    21
Smoke Disp             GD    PR    VG    EX    PR    PR    GD    EX    PR    PR


Date           04/01  Sun 04/02/17  Mon 04/03/17  Tue 04/04/17  Wed 04/05/17
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          81      53    70      50    77      55    80      53    75
Temp          72 78   60 53 64 68   55 50 67 74   61 55 71 77   60 53 67 72
Dewpt         46 42   47 48 50 49   48 47 47 45   43 41 41 39   33 36 40 39
Min/Max Rh       26      83    47      89    33      59    24      54    27
Rh            39 28   62 83 60 51   77 89 49 35   51 59 34 25   36 52 37 30
Pwind Dir         S      SW     N      NW     W      SW     W       W     W
Wind Char       <15     <15   <15     <15   <15     <15   <15     <15   <15
Avg Clouds    SC FW   SC B1 B2 B2   B1 SC FW FW   FW FW FW FW   FW FW FW FW
Pop 12hr         20      30    40      20     5       5     5       5     0

$$

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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