FNUS76 KSEW 181212
FWSSEW

Spot Forecast for WIWFA May Session...WA-DNR
National Weather Service Seattle WA
512 AM PDT Mon May 18 2026

Forecast is based on forecast start time of 0600 PDT on May 18. 
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...An upper-level ridge will begin to center over the
area today. A period of dry weather has began and is forecast to
maintain into the new week. Min RH values won't be of any concern
as onshore flow prevails. 

.TODAY...

Sky/weather.........Partly sunny (45-55 percent). 
Chance of pcpn......0 percent. 
Chance of lightning.1 percent. 
Max temperature.....Around 64. 
Min humidity........44 percent. 
Surface winds (mph).West winds up to 5 mph shifting to the 
                    northwest 5 to 10 mph in the afternoon. 
Mixing height.......3900 ft AGL. 
Transport winds.....Northwest around 10 mph. 
Rainfall amount.....0.00 inches. 
Ceiling (KFT).......2.5 increasing to 18 in the afternoon. 
Visibility..........10. 

.TONIGHT...

Sky/weather.........Partly cloudy (35-45 percent). 
Chance of pcpn......0 percent. 
Chance of lightning.0 percent. 
Min temperature.....Around 42. 
Max humidity........89 percent. 
Surface winds (mph).West winds up to 5 mph in the evening becoming 
                    light. 
Mixing height.......400 ft AGL. 
Transport winds.....West around 5 mph. 
Rainfall amount.....0.00 inches. 
Ceiling (KFT).......25 decreasing to 2.2 overnight. 
Visibility..........10. 

.TUESDAY...

Sky/weather.........Partly sunny (60-70 percent). 
Chance of pcpn......0 percent. 
Chance of lightning.0 percent. 
Max temperature.....Around 63. 
Min humidity........54 percent. 
Surface winds (mph).Light winds becoming west around 5 mph in the 
                    afternoon. 
Mixing height.......3000 ft AGL. 
Transport winds.....West around 8 mph. 
Rainfall amount.....0.00 inches. 
Ceiling (KFT).......MISSING. 
Visibility..........MISSING. 

$$
Forecaster...McMillian
Requested by...Ross Avichouser- Training Coordinator
Type of request...OTHER
.TAG 2611984.8/SEW
.DELDT 05/18/26
.FormatterVersion 2.0.0
.EMAIL ross.avichouser@dnr.wa.gov,krissy.mitchell@dnr.wa.gov,sean.kibbe@dnr.wa.gov,lois.anderson@dnr.wa.gov