571
FNUS76 KSEW 161212
FWSSEW
SPOT FORECAST FOR BEAR GULCH FIRE...NATIONAL PARK SERVICE
NATIONAL WEATHER SERVICE SEATTLE WA
512 AM PDT TUE SEP 16 2025
FORECAST IS BASED ON FORECAST START TIME OF 0600 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.
TODAY
SKY/WEATHER.........SUNNY (0-5 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....AROUND 77.
MIN HUMIDITY........39 PERCENT.
WIND (20 FT)........EAST WINDS 7 TO 8 MPH. GUSTS UP TO 20 MPH IN
THE MORNING.
MIXING HEIGHT.......2400 FT AGL.
TRANSPORT WINDS.....EAST AROUND 11 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 57.
MAX HUMIDITY........66 PERCENT.
WIND (20 FT)........EAST WINDS AROUND 5 MPH SHIFTING TO THE
NORTHWEST OVERNIGHT.
MIXING HEIGHT.......700 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 6 MPH.
RAINFALL AMOUNT.....0.00 INCHES.
CEILING (KFT).......25.
VISIBILITY..........10.
WEDNESDAY
SKY/WEATHER.........SUNNY (10-20 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....AROUND 72.
MIN HUMIDITY........66 PERCENT.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......2500 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 5 MPH.
RAINFALL AMOUNT.....0.00 INCHES.
CEILING (KFT).......25.
VISIBILITY..........10.
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT) BECOMING
MOSTLY CLOUDY (60-70 PERCENT) LATE.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....AROUND 50.
MAX HUMIDITY........97 PERCENT.
WIND (20 FT)........SOUTHWEST 5 TO 8 MPH.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.
RAINFALL AMOUNT.....0.00 INCHES.
CEILING (KFT).......25 LOWERING TO 2 LATE.
VISIBILITY..........10 LOWERING TO 1 LATE.
FORECASTER...FELTON
REQUESTED BY...BRIAN GOLD
TYPE OF REQUEST...WILDFIRE
.TAG 2521819.4/SEW
.DELDT 09/16/25
.FORMATTERVERSION 2.0.0
.EMAIL BRIAN_GOLD@NPS.GOV,BRIAN_GOLD@FIRENET.GOV,JONAH_GRAY@NPS.GOV
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