FNUS76 KSEW 202012

FWSSEW



Spot Forecast for Electric Fire...US Forest Service

National Weather Service Seattle WA

112 PM PDT Sun Sep 20 2026



Forecast is based on forecast start time of 1400 PDT on September 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...Clear conditions will persist this afternoon with

slightly warmer temperatures. There is a weak offshore wind coming

through the Cascades today, which will lower the afternoon

relative humidity values to around 35 percent. Recent cool and

wetter weather will have likely moderated the heavier fuels to an extent, but

the low RH today could prompt a little more response to the

dryness in the finer fuels. More onshore flow on Monday will keep

the RH up, with similar temperatures in the forecast. 



.REST OF TODAY...



Sky/weather.........Sunny (10-20 percent). 

CWR.................0 percent. 

Chance of lightning.0 percent. 

Max temperature.....Around 75. 

Min humidity........35 percent. 

Wind (20 ft)........South winds 5 mph, westerly after 1700. 

Mixing height.......2500 ft AGL. 

Transport winds.....Southwest around 7 mph. 

Rainfall amount.....0.00 inches. 

Ceiling (KFT).......25. 

Visibility..........10. 



.TONIGHT...



Sky/weather.........Mostly clear (10-20 percent). 

CWR.................0 percent. 

Chance of lightning.0 percent. 

Min temperature.....Around 55. 

Max humidity........55 percent. 

Wind (20 ft)........WNW on the ridges 5-8 mph, otherwise downslope 3-5 mph. 

Mixing height.......300 ft AGL. 

Transport winds.....East around 10 mph. 

Rainfall amount.....0.00 inches. 

Ceiling (KFT).......25. 

Visibility..........10. 



.MONDAY...



Sky/weather.........Mostly sunny (30-40 percent). 

CWR.................0 percent. 

Chance of lightning.0 percent. 

Max temperature.....Around 73. 

Min humidity........55 percent. 

Wind (20 ft)........South 5 to 9 mph in the afternoon. 

Mixing height.......2300 ft AGL. 

Transport winds.....Southwest around 8 mph. 

Rainfall amount.....0.00 inches. 

Ceiling (KFT).......25. 

Visibility..........10. 



$$

Forecaster...Kristell

Requested by...Jack Bruemmer

Type of request...WILDFIRE

.TAG 2622088.2/SEW

.DELDT 09/20/26

.FormatterVersion 2.0.0

.EMAIL jack.bruemmer@usda.gov