Suppression Forecast
Issued by NWS San Angelo, TX

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FNUS74 KSJT 270014
FWSSJT

Spot Forecast for Rockin rk rx...Coleman Fire Department
National Weather Service San Angelo TX
614 PM CST Fri Feb 26 2021

Forecast is based on ignition time of 1900 CST on February 26.
Please contact our office at 325-944-3030 if you have questions
or concerns with this forecast.

.DISCUSSION...

Expect south winds of 5 to 10 mph Saturday with a few gusts to 15
mph during the afternoon. For Saturday night, expect south winds
of 5 to 10 mph with a few gusts to 15 mph during the evening. The
RH values will be 95 to 100 percent through 10 AM Saturday and
then fall to 65 percent by 2 PM and a minimum RH of around 55
percent by late afternoon. The RH values will increase to around
85 percent by late Saturday evening.

.REST OF TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent) then becoming
                    mostly cloudy (60-70 percent). Areas of fog
                    late in the night.
LAL.................No Tstms.
Min temperature.....Around 48.
Max humidity........100 percent.
Wind (20 ft)........Southeast winds around 5 mph.
Mixing height.......0-100 ft AGL.
Transport winds.....Southeast 5 to 7 mph.
Smoke dispersal.....Poor (200 knot-ft).
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.

TIME (CST)          7 PM   9 PM   11 PM  1 AM   3 AM   5 AM
Sky (%).............18     28     53     73     72     79
Weather cov.........                            AREAS  AREAS
Weather type........NONE   NONE   NONE   NONE   FOG    FOG
Tstm cov............
LAL.................1      1      1      1      1      1
Temp................57     51     49     48     48     49
RH..................57     80     93     100    100    100
20 FT wind dir......S      SE     SE     S      S      S
20 FT wind spd......5      5      5      5      5      5
20 FT wind gust.....7      7      7      6      7      6
Mix hgt (ft)........100    BLW100 BLW100 100    100    100
Transport wind......S 5    SE 7   SE 6   SE 6   S 7    S 5
Haines index........5      4      4      5      4      4
SDspl kt-ft/1000....1      0      0      0      0      0

.SATURDAY...

Sky/weather.........Mostly cloudy (75-85 percent). Areas of fog
                    early in the morning.
LAL.................No Tstms.
Max temperature.....Around 73.
Min humidity........52 percent.
Wind (20 ft)........South winds 5 to 13 mph.
Mixing height.......100-1900 ft AGL increasing to 1900-2500 ft AGL
                    late in the afternoon.
Transport winds.....South 2 to 13 mph shifting to the southeast 3
                    to 12 mph late in the morning, then increasing
                    to south 15 to 23 mph in the afternoon.
Smoke dispersal.....Poor to good (200-48400 knot-ft).
Haines Index........2 to 5 or very low to moderate potential for
                    large plume dominated fire growth.

TIME (CST)          6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).............73     95     93     93     89     75
Weather cov.........AREAS  AREAS
Weather type........FOG    FOG    NONE   NONE   NONE   NONE
Tstm cov............
LAL.................1      1      1      1      1      1
Temp................49     50     56     62     68     73
RH..................100    100    95     77     65     55
20 FT wind dir......S      S      S      S      S      S
20 FT wind spd......5      5      5      7      9      12
20 FT wind gust.....6      6      7      10     13     14
Mix hgt (ft)........100    100    200    500    1900   2200
Transport wind......S 3    SE 2   SE 6   S 12   S 20   S 23
Haines index........5      5      2      2      2      2
SDspl kt-ft/1000....0      0      1      5      32     44

.SATURDAY NIGHT...

Sky/weather.........Mostly cloudy (75-85 percent).
LAL.................No Tstms.
Min temperature.....Around 52.
Max humidity........100 percent.
Wind (20 ft)........South winds 8 to 23 mph decreasing to 5 to 7
                    mph early in the evening.
Mixing height.......100-1500 ft AGL.
Transport winds.....South 5 to 17 mph decreasing to 6 to 7 mph
                    after midnight.
Smoke dispersal.....Poor to fair (600-27200 knot-ft).
Haines Index........5 to 6 or moderate to high potential for large
                    plume dominated fire growth.

TIME (CST)          6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).............66     79     80     75     83     88
Weather cov.........
Weather type........NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov............
LAL.................1      1      1      1      1      1
Temp................72     62     58     55     54     53
RH..................52     73     87     96     100    100
20 FT wind dir......S      S      S      S      SW     SW
20 FT wind spd......9      7      6      5      5      5
20 FT wind gust.....13     10     8      7      7      7
Mix hgt (ft)........1500   600    200    200    100    100
Transport wind......S 21   S 13   S 8    S 8    S 7    S 6
Haines index........5      5      6      5      5      6
SDspl kt-ft/1000....27     7      1      1      1      1

$$
Forecaster...CUNNINGHAM
Requested by...Duston Crawford
Type of request...PRESCRIBED
.TAG 2103204.0/SJT
.DELDT 02/26/21
.EMAIL duston.crawford@colemanfire.com


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