Suppression Forecast
Issued by NWS San Angelo, TX

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844
FNUS74 KSJT 271512
FWSSJT

Spot Forecast for Friday Burn...USDA-NRCS
National Weather Service San Angelo TX
912 AM CST Mon Feb 27 2017

Forecast is based on ignition time of 1000 CST on February 27.
Please contact our office at 325-944-3030 if you have questions
or concerns with this forecast.

.DISCUSSION...
Fire weather concerns will will be slightly elevated this
afternoon and early evening. The minimum relative humdities will
fall to 40 percent late this afternoon. Expect excellent recovery
for relative humdities tonight. The winds will be south to
southwest at 5 to 10 mph with gusts to 15 mph this afternoon. For
tonight, the winds will be south at 5 to 10 mph. Also, isolated
showers and thunderstorms area possible today.

.TODAY...

Sky/weather.........Mostly cloudy (65-75 percent) then becoming
                    mostly sunny (35-45 percent). Slight chance of
                    showers and thunderstorms.
LAL.................1-8 strikes.
Max temperature.....Around 81.
Min humidity........41 percent.
Wind (20 ft)........Light winds becoming south 5 to 8 mph in the
                    late morning and afternoon. Gusty and erratic
                    winds expected near thunderstorms.
Mixing height.......500-2300 ft AGL increasing to 2800-4400 ft AGL
                    early in the afternoon, then increasing to
                    6000-7600 ft AGL early in the afternoon
                    decreasing to 5200 ft AGL late in the afternoon
                    decreasing to 2800 ft AGL.
Mixing winds........Southwest 7 to 13 mph.
Smoke dispersal.....Poor to good (600-47900 knot-ft) increasing to
                    fair to excellent (26600-61100 knot-ft) early
                    in the afternoon.
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)      10 AM  NOON   2 PM   4 PM
Sky (%).........81     55     41     34
Weather cov.....S CHC  S CHC  S CHC  S CHC
Weather type....RNSHWR RNSHWR RNSHWR RNSHWR
Tstm cov........S CHC  S CHC  S CHC  S CHC
LAL.............2      2      2      2
Temp............66     73     79     81
RH..............84     64     45     41
20 ft wind......S 6    SW 8   SW 7   S 7
20 ft wind gust.10     15     10     10
Mix hgt (ft)....1700   2800   6000   5200
Mixing wind......S 8    W 10   W 13   SW 10
Haines index....5      5      5      4
SDspl kt-ft/100018     36     61     42

.TONIGHT...

Sky/weather.........Partly cloudy (35-45 percent) then becoming
                    mostly cloudy (60-70 percent).
LAL.................No Tstms.
Min temperature.....Around 59.
Max humidity........100 percent.
Wind (20 ft)........South winds 6 to 8 mph.
Mixing height.......500-1500 ft AGL.
Mixing winds........South 7 to 14 mph increasing to 12 to 17 mph in
                    the late evening and overnight.
Smoke dispersal.....Poor to fair (2800-18600 knot-ft).
Haines Index........6 or high potential for large plume dominated
                    fire growth.

TIME (CST)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........26     49     57     55     73     78
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
LAL.............1      1      1      1      1      1
Temp............79     71     66     63     60     60
RH..............45     63     78     90     100    100
20 ft wind......S 8    S 7    S 6    S 7    S 7    S 7
20 ft wind gust.15     10     10     10     10     10
Mix hgt (ft)....500    500    500    500    1100   1400
Mixing wind......S 7    S 14   S 16   S 12   S 15   S 17
Haines index....6      6      6      6      6      6
SDspl kt-ft/100018     14     4      3      4      5

.TUESDAY...

Sky/weather.........Mostly cloudy (70-80 percent).
LAL.................No Tstms.
Max temperature.....Around 85.
Min humidity........35 percent.
Wind (20 ft)........South winds 6 to 10 mph.
Mixing height.......1600-3000 ft AGL increasing to 3800-5500 ft AGL
                    late in the morning, then increasing to
                    6500-7500 ft AGL early in the afternoon
                    decreasing to 5100 ft AGL late in the afternoon
                    decreasing to 2800 ft AGL.
Mixing winds........South 13 to 17 mph.
Smoke dispersal.....Poor to good (4800-50100 knot-ft) increasing to
                    good to excellent (57800-71500 knot-ft) early
                    in the afternoon.
Haines Index........3 to 6 or very low potential for large plume
                    dominated fire growth to or high potential for
                    large plume dominated fire growth.

TIME (CST)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........74     81     80     73     69     68
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
LAL.............1      1      1      1      1      1
Temp............60     60     70     78     83     85
RH..............100    100    71     54     43     36
20 ft wind......S 6    S 8    SW 10  SW 10  SW 10  S 9
20 ft wind gust.10     15     15     15     20     20
Mix hgt (ft)....1600   2000   3000   4600   6500   5100
Mixing wind......S 17   S 16   SW 15  SW 14  SW 13  SW 14
Haines index....6      6      5      3      3      5
SDspl kt-ft/10005      14     32     46     58     72

$$
Forecaster...CUNNINGHAM
Requested by...MItchell Schroeder
Type of request...PRESCRIBED
.TAG 1702997.0/SJT



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