Suppression Forecast
Issued by NWS Columbia, SC

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000
FNUS72 KCAE 281023
FWSCAE

Spot Forecast for Savannah River cpt 30...Usda
National Weather Service Columbia SC
523 AM EST Sun Feb 28 2021

Forecast is based on ignition time of 1000 EST on February 28.
If conditions become unrepresentative...contact the National Weather
Service.

Positive or negative feedback including observations taken at
the burn site would be greatly appreciated. You can use the same
webpage where you requested the spot forecast for this. You may
also call our office if you have questions or concerns.

.DISCUSSION...High pressure over the western Atlantic will keep
southwest winds across the site today. Given deep mixing, will
probably see wind gusts in the 20 to 23 mph range this afternoon.
Unseasonably warm temperatures continue. Also, isolated showers
are possible this afternoon. Fog is not expected tonight.

TODAY...

Sky/weather.........Partly sunny (50-60 percent).
Chance of pcpn......10 percent.
LAL.................No Tstms.
Max temperature.....Around 83.
Min humidity........46 percent.
Wind (20 ft)........Southwest winds 5 to 9 mph. Gusts up to 20 mph
                    early in the afternoon.
Mixing height.......1300-3000 ft AGL increasing to 3300-4600 ft AGL
                    in the afternoon.
Transport winds.....South 10 to 12 mph shifting to the southwest 17
                    to 24 mph in the afternoon.
LVORI...............3.
Max ADI.............71.

TIME (EST)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........69  58  51  47  42  53  53  44
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   10  10  10  10
Temp............71  74  77  79  80  81  81  80
RH..............76  69  58  52  49  46  46  47
20 FT wind dir..S   SW  SW  SW  SW  SW  SW  SW
20 FT wind dir..200 210 210 210 220 220 230 220
20 FT wind spd..5   6   8   9   9   9   9   8
20 FT wind gust.13  15  18  20  20  20  18  16
Mix hgt (kft)...1.3 1.9 3.0 4.1 4.5 4.6 4.5 3.3
Transp wind dir.S   S   S   SW  SW  SW  SW  SW
Transp wind spd.10  12  20  24  24  24  24  17
LVORI...........4   3   1   1   1   1   1   1
ADI.............15  27  63  68  71  71  71  58
LAL.............1   1   1   1   1   1   1   1

.TONIGHT...

Sky/weather.........Partly cloudy (40-50 percent) then becoming
                    mostly cloudy (60-70 percent).
Chance of pcpn......10 percent.
LAL.................No Tstms.
Min temperature.....Around 63.
Max humidity........87 percent.
Wind (20 ft)........Southwest winds around 6 mph early in the
                    evening becoming light, then becoming southwest
                    5 to 6 mph early in the evening.
Mixing height.......600-2000 ft AGL.
Transport winds.....Southwest 8 to 13 mph.
LVORI...............4.
Min ADI.............4.

TIME (EST)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........44     41     46     49     47     65
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Chc of pcpn (%).10     10     0      10     10     10
Temp............78     73     70     68     67     65
RH..............48     64     78     81     81     87
20 ft wind......SW 6   S 5    S 5    SW 5   SW 5   SW 6
20 ft wind gust.12     9      10     12     12     12
Mix hgt (ft)....2000   900    600    600    600    600
Transport wind..SW 12  S 8    S 10   S 12   SW 12  SW 13
LVORI...........2      3      4      4      4      5
ADI.............8      5      7      8      8      8
LAL.............1      1      1      1      1      1

.MONDAY...

Sky/weather.........Mostly cloudy (80-90 percent). Showers likely
                    through the day.
Chance of pcpn......60 percent.
LAL.................No Tstms.
Max temperature.....Around 75.
Min humidity........63 percent.
Wind (20 ft)........West winds 6 to 11 mph with gusts to around 18
                    mph in the morning and early afternoon becoming
                    light.
Mixing height.......700-2600 ft AGL increasing to 1700-2900 ft AGL
                    in the afternoon.
Transport winds.....Southwest 14 to 18 mph shifting to the west 22
                    to 28 mph in the late morning and early
                    afternoon, then becoming northwest 13 to 15 mph
                    late in the afternoon.
LVORI...............4.
Max ADI.............65.

TIME (EST)      6 AM      9 AM      NOON      3 PM
Sky (%).........79        86        90        91
Weather cov.....          CHANCE    LIKELY    CHANCE
Weather type....NONE      RNSHWR    RNSHWR    RNSHWR
Tstm cov........
Chc of pcpn (%).10        50        60        40
Temp............64        67        70        69
RH..............93        87        78        66
20 FT wind......SW 6G13   SW 10G20  W 11G22   W 6G10
Mix hgt (ft)....700       1800      2800      2100
Transport wind..SW 14     SW 25     W 26      NW 15
LVORI...........5         4         3         3
ADI.............11        46        61        39
LAL.............1         1         1         1

$$
Forecaster...Morrison
Requested by...Jarvis Brown
Type of request...PRESCRIBED
.TAG 2103239.0/CAE
.DELDT 02/28/21
.EMAIL jarvis.brown@usda.gov



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