359
FNUS76 KSEW 161232
FWSSEW
SPOT FORECAST FOR TUNNEL CREEK FIRE...USFS
NATIONAL WEATHER SERVICE SEATTLE WA
532 AM PDT TUE SEP 16 2025
FORECAST IS BASED ON FORECAST START TIME OF 0730 PDT ON SEPTEMBER 16.
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
THERMALLY INDUCED SURFACE TROUGH OF LOW PRESSURE ALONG
THE COAST THIS MORNING WILL SLOWLY SHIFT INLAND LATE THIS AFTERNOON
AND EVENING. THE RESULTING LOW LEVEL OFFSHORE FLOW WILL GIVE THE
FIRE LOCATION A VERY DRY AND WARM DAY. WEAK LOW LEVEL ONSHORE FLOW
WEDNESDAY WITH THE THERMAL TROUGH WELL INLAND FOR COOLER
TEMPERATURES AND HIGHER RELATIVE HUMIDITY VALUES.
REST OF TODAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....AROUND 71.
MIN HUMIDITY........39 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 9 MPH WITH GUSTS TO AROUND
20 MPH LATE MORNING AND AFTERNOON HOURS.
MIXING HEIGHT.......1800 FT AGL.
TRANSPORT WINDS.....SOUTHEAST AROUND 13 MPH.
RAINFALL AMOUNT.....0.00 INCHES.
CEILING (KFT).......25.
VISIBILITY..........10.
TONIGHT
SKY/WEATHER.........CLEAR (0-5 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....AROUND 56.
MAX HUMIDITY........60 PERCENT.
WIND (20 FT)........SOUTH WINDS 7 TO 9 MPH WITH GUSTS TO AROUND 20
MPH.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 11 MPH.
RAINFALL AMOUNT.....0.00 INCHES.
CEILING (KFT).......25.
VISIBILITY..........10.
WEDNESDAY
SKY/WEATHER.........SUNNY (20-30 PERCENT). PATCHY MORNING FOG.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....AROUND 64.
MIN HUMIDITY........60 PERCENT.
WIND (20 FT)........SOUTH WINDS AROUND 5 MPH SHIFTING TO THE EAST
IN THE AFTERNOON.
MIXING HEIGHT.......1800 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 8 MPH.
RAINFALL AMOUNT.....0.00 INCHES.
CEILING (KFT).......25.
VISIBILITY..........1-3 INCREASING TO 10 BY LATE MORNING.
FORECASTER...FELTON
REQUESTED BY...INCIDENT COMMANDER
TYPE OF REQUEST...WILDFIRE
.TAG 2521506.9/SEW
.DELDT 09/16/25
.FORMATTERVERSION 2.0.0
.EMAIL BENJAMIN.DEAN@USDA.GOV,REED.SNOW@USDA.GOV
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