Suppression Forecast
Issued by NWS San Angelo, TX

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878
FNUS74 KSJT 131352
FWSSJT

Spot Forecast for Colorado Bend SP...Texas Parks & Wildlife Dept
National Weather Service San Angelo TX
752 AM CST Wed Dec 13 2017

Forecast is based on ignition time of 1000 CST on December 13.
Please contact our office at 325-944-3030 if you have questions
or concerns with this forecast.

.DISCUSSION...

A cold morning will quickly warm, with afternoon temperatures
above normal. Highs near 70 late this afternoon. Light winds will
become more consistent southwest by mid to late morning, with wind
speeds generally less than 10 mph at the 20 foot level through the
afternoon. Humidity values will drop to around 20% by late
afternoon.

.TODAY...

Sky/weather.........Sunny (15-25 percent).
LAL.................No Tstms.
Max temperature.....Around 69.
Min humidity........21 percent.
Wind (20 ft)........Light winds becoming southwest 6 to 10 mph in
                    the late morning and afternoon.
Mixing height.......200-1900 ft AGL increasing to 1800-2200 ft AGL
                    early in the afternoon.
Mixing winds........Southwest 5 to 14 mph increasing to 10 to 18
                    mph in the afternoon.
Smoke dispersal.....Poor in the morning...good in the afternoon.
                   (800-34900 knot-ft).
Haines Index........4 to 5 or low potential for large plume
                    dominated fire growth in the morning to
                    moderate potential for large plume
                    dominated fire growth in the afternoon.

TIME (CST)      10 AM  NOON   2 PM   4 PM
Sky (%).........25     18     17     17
Weather cov.....
Weather type....NONE   NONE   NONE   NONE
Tstm cov........
LAL.............1      1      1      1
Temp............48     61     68     69
RH..............44     27     22     22
20 ft wind......SW 6   SW 10  SW 10  SW 9
20 ft wind gust.10            15     10
Mix hgt (ft)....1000   1600   2200   2200
Mixing wind......SW 9   SW 17  SW 18  SW 15
Haines index....4      5      5      5
SDspl kt-ft/10008      24     35     28

.TONIGHT...

Sky/weather.........Mostly clear (10-20 percent).
LAL.................No Tstms.
Min temperature.....Around 38.
Max humidity........76 percent.
Wind (20 ft)........Southwest winds 5 to 6 mph early in the evening
                    becoming light.
Mixing height.......200-1400 ft AGL.
Mixing winds........Northwest 7 to 9 mph.
Smoke dispersal.....Poor to poor (1200-9700 knot-ft).
Haines Index........4 to 5 or low potential for large plume
                    dominated fire growth to or moderate potential
                    for large plume dominated fire growth.

TIME (CST)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........14     18     18     13     16     17
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
LAL.............1      1      1      1      1      1
Temp............59     53     51     47     44     42
RH..............36     46     50     58     65     70
20 ft wind......SW 6   SW 3   SW 3   W 3    W 3    NW 3
20 ft wind gust.       5      5      5      5      5
Mix hgt (ft)....1400   600    200    200    200    200
Mixing wind......SW 8   SW 8   SW 8   W 7    W 8    NW 8
Haines index....5      5      5      5      5      4
SDspl kt-ft/100010     4      1      1      1      1

.THURSDAY...

Sky/weather.........Sunny (15-25 percent).
LAL.................No Tstms.
Max temperature.....Around 59.
Min humidity........31 percent.
Wind (20 ft)........Light winds becoming north 5 to 9 mph.
Mixing height.......200-1900 ft AGL increasing to 2000-2500 ft AGL
                    in the afternoon.
Mixing winds........North 8 to 17 mph.
Smoke dispersal.....Poor to good (1100-34800 knot-ft).
Haines Index........3 to 4 or very low potential for large plume
                    dominated fire growth to or low potential for
                    large plume dominated fire growth.

TIME (CST)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........17     12     11     12     20     25
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
LAL.............1      1      1      1      1      1
Temp............40     38     50     56     59     57
RH..............73     76     48     37     33     35
20 ft wind......N 3    N 6    N 7    N 8    N 9    N 8
20 ft wind gust.5      10     10     10     15     10
Mix hgt (ft)....200    700    1300   1900   2500   2500
Mixing wind......N 8    N 14   N 17   N 16   N 16   N 14
Haines index....4      4      4      4      4      3
SDspl kt-ft/10001      9      20     27     35     30

$$
Forecaster...PMCCULLOUGH
Requested by...Jeff sparks
Type of request...PRESCRIBED
.TAG 1719921.0/SJT



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