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Spot Forecast
Issued by NWS Seattle/Tacoma, WA

000
FNUS76 KSEW 202253
FWSSEW

Spot Forecast for Lyman fire...DNR
National Weather Service Seattle WA
353 PM PDT Sat Apr 20 2024

Forecast is based on forecast start time of 1600 PDT on April 20.
If conditions become unrepresentative, contact the National Weather
Service.

Please contact our office at (206) 526-6095, if you have questions
or concerns with this forecast.

.DISCUSSION...A cold front will continue to progress eastward this
afternoon with the front reaching the burn site between 4-5 PM PDT.
Southwest winds will be strongest along the front, with gusts of 20
to 25 mph for a few hours into the early evening. Precipitation will
be light as the front crosses, though convergence activity forming over
Skagit and Whatcom Counties later this evening into the overnight hours
may prolong precipitation and cause locally heavy showers. Conditions
Sunday will be much cooler with scattered light shower activity. Drier
into Monday and Tuesday with a warming trend.

.REST OF TODAY...

Sky/weather.........Cloudy (90-100 percent). Rain.
CWR.................60 percent.
LAL.................1.
Max temperature.....Around 69.
Min humidity........32 percent.
Wind (20 ft)........Southwest 8 to 10 mph with gusts up to 22 mph.
Mixing height.......3900 ft AGL.
Transport winds.....South around 20 mph.
Haines mid level....6 or high potential for large plume dominated
                    fire growth.
Rainfall amount.....0.08 inches.

.TONIGHT...

Sky/weather.........Cloudy (85-95 percent). Rain in the evening,
                    then rain likely overnight.
CWR.................80 percent.
LAL.................1.
Min temperature.....Around 41.
Max humidity........95 percent.
Wind (20 ft)........Southwest winds 7 to 10 mph.
Mixing height.......800 ft AGL.
Transport winds.....West around 10 mph.
Haines mid level....3 or very low potential for large plume
                    dominated fire growth.
Rainfall amount.....0.39 inches.

.SUNDAY...

Sky/weather.........Mostly cloudy (75-85 percent). Rain showers through the
                    day.
CWR.................30 percent.
LAL.................1.
Max temperature.....Around 54.
Min humidity........63 percent.
Wind (20 ft)........Southwest winds 5 to 8 mph with gusts to 14 mph.
Mixing height.......3400 ft AGL.
Transport winds.....West around 15 mph.
Haines mid level....3 or very low potential for large plume
                    dominated fire growth.
Rainfall amount.....0.02 inches.

$$
Forecaster...Lindeman
Requested by...Dean Warner DO
Type of request...WILDFIRE
.TAG 2411536.0/SEW
.DELDT 04/20/24
.FormatterVersion 2.0.0
.EMAIL Dean.warner@dnr.wa.gov