Suppression Forecast
Issued by NWS San Angelo, TX

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FNUS74 KSJT 201450
FWSSJT

Spot Forecast for Foster Burn...USDA-NRCS
National Weather Service San Angelo TX
950 AM CDT Mon Mar 20 2017

Forecast is based on ignition time of 1000 CDT on March 20.
Please contact our office at 325-944-3030 if you have questions
or concerns with this forecast.

.DISCUSSION...

Currently the temperatures is 67 degrees, winds are from the south
at 8 mph, gusting to 12 mph, and relative humidity values are near
78 percent. Relative humidity values will drop to near 48 percent
by noon, then drop to a minimum near 25 percent around 5 PM.
Relative humidity values will quickly increase to near 35 percent
around 8 PM and near 55 percent around midnight. Expect south
southwest 20 foot winds to increase to 12 to 15 mph within the
next hour and continue through the afternoon and evening hours,
eventually decreasing to 5 to 10 mph early Tuesday morning. High
temperatures this afternoon will be near 90 degrees.


.TODAY...

Sky/weather.........Sunny (5-15 percent).
LAL.................No Tstms.
Temperature.........67 at ignition...Max 91.
RH..................61 percent at ignition...Min 24 percent.
Wind (20 ft)........Winds south at 13 mph at ignition...otherwise
                    South winds 12 to 14 mph.
Mixing height.......1200 ft AGL at ignition...otherwise 400-2200 ft
                    AGL increasing to 3200-4200 ft AGL early in the
                    afternoon, then increasing to 7400 ft AGL early
                    in the afternoon increasing to 10700 ft AGL
                    late in the afternoon increasing to 13900 ft
                    AGL decreasing to 10700 ft AGL late in the
                    afternoon.
Mixing winds........Southwest 16 to 24 mph decreasing to 13 to 15
                    mph late in the afternoon.
Smoke dispersal.....Fair /25900 knot-ft/ at ignition. Max...good
                    /45500 knot-ft/ increasing to excellent to
                    excellent (127300-152900 knot-ft).
Haines Index........6 or high potential for large plume dominated
                    fire growth at ignition...max 6.

TIME (CDT)      10 AM  NOON   2 PM   4 PM
Sky (%).........9      7      7      8
Weather cov.....
Weather type....NONE   NONE   NONE   NONE
Tstm cov........
LAL.............1      1      1      1
Temp............67     75     84     89
RH..............61     48     34     27
20 ft wind......S 14   S 14   S 14   S 13
20 ft wind gust.20     20     20     20
Mix hgt (ft)....1200   3200   7400   13900
Mixing wind......SW 24  SW 22  SW 16  SW 13
Haines index....6      6      6      6
SDspl kt-ft/100026     61     107    153

.TONIGHT...

Sky/weather.........Mostly clear (10-20 percent).
LAL.................No Tstms.
Temperature.........Min 60.
RH..................Max 72 percent.
Wind (20 ft)........South winds 14 to 15 mph with gusts to around
                    25 mph.
Mixing height.......7400 ft AGL decreasing to 400-1900 ft AGL.
Mixing winds........South 20 to 28 mph decreasing to 16 to 18 mph
                    early in the morning.
Smoke dispersal.....Excellent to excellent (83900-123200 knot-ft)
                    decreasing to poor to fair (5200-16300
                    knot-ft).
Haines Index........6 or high potential for large plume dominated
                    fire growth.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........9      9      11     13     15     20
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
LAL.............1      1      1      1      1      1
Temp............91     81     73     69     68     64
RH..............24     32     44     53     57     65
20 ft wind......S 14   S 15   S 15   S 15   S 15   S 14
20 ft wind gust.20     25     25     25     25     20
Mix hgt (ft)....7400   3100   800    600    400    400
Mixing wind......S 20   S 25   S 28   S 26   S 23   S 18
Haines index....6      6      6      6      6      6
SDspl kt-ft/1000123    67     19     14     9      6

.TUESDAY...

Sky/weather.........Sunny (15-25 percent).
LAL.................No Tstms.
Temperature.........Max 93.
RH..................Min 19 percent.
Wind (20 ft)........South winds 10 to 14 mph.
Mixing height.......400-2000 ft AGL increasing to 3300-4600 ft AGL
                    early in the afternoon, then increasing to 8300
                    ft AGL early in the afternoon increasing to
                    12100 ft AGL late in the afternoon increasing
                    to 15800 ft AGL decreasing to 13000 ft AGL late
                    in the afternoon.
Mixing winds........Southwest 15 to 23 mph.
Smoke dispersal.....Poor to good (4600-38600 knot-ft) increasing to
                    excellent to excellent (168600-205300 knot-ft).
Haines Index........6 or high potential for large plume dominated
                    fire growth.

TIME (CDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........24     26     29     25     20     12
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
LAL.............1      1      1      1      1      1
Temp............61     60     67     76     85     91
RH..............72     72     56     42     30     22
20 ft wind......S 14   S 14   S 14   SW 13  SW 10  S 10
20 ft wind gust.20     20     20     20     15     15
Mix hgt (ft)....400    500    700    3300   8300   15800
Mixing wind......S 15   S 17   S 23   SW 20  SW 16  SW 15
Haines index....6      6      6      6      6      6
SDspl kt-ft/10005      7      15     57     116    205

$$
Forecaster...DANIELS
Requested by...Justin Trimble
Type of request...PRESCRIBED
.TAG 1704673.0/SJT



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