224
FNUS76 KPDT 092327
FWSPDT
SPOT FORECAST FOR SUNRISE FIRE...BLM
NATIONAL WEATHER SERVICE PENDLETON OR
427 PM PDT WED JUL 9 2025
FORECAST IS BASED ON FORECAST START TIME OF 1600 PDT ON JULY 10.
***THUNDERSTORMS IMPLY GUSTY AND ERRATIC WINDS***
***WINDS ARE 20 FOOT 10-MINUTE AVERAGES***
***CWR-CHANCE OF WETTING RAIN 0.10 OR GREATER***
***VENTILATION INDEX IS DERIVED FROM THE
TRANSPORT WIND MULTIPLIED BY THE MIXING
HEIGHT IN 100'S OF FEET. INDEX CATEGORIES
ARE A GENERALIZED INDICATOR ONLY.***
IF YOU HAVE QUESTIONS OR CONCERNS WITH THIS FORECAST, PLEASE
CONTACT OUR OFFICE AT (541) 276-8134.
DISCUSSION
WEAK NORTHWEST FLOW ALOFT WILL MAINTAIN RELATIVELY
COOL BUT DRY CONDITIONS ACROSS THE AREA. AN UPPER LEVEL RIDGE
WILL BUILD OVER THE AREA THURSDAY NIGHT INTO FRIDAY THAT WILL
BEGIN A WARMING AND DRYING TREND WITH MIN RHS FALLING BELOW
15-20%. WINDS LOOK TO REMAIN GENERALLY BELOW 10-15 MPH.
THURSDAY
SKY/WEATHER.........CLEAR (0-10 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....82-85.
MIN HUMIDITY........22-27 PERCENT.
WIND (20 FT)........NORTHWEST 5 TO 10 MPH.
MIXING HEIGHT.......6600 FT AGL.
TRANSPORT WINDS.....NORTHWEST 8 TO 12 MPH.
VENTILATION INDEX...POOR (100) INCREASING TO FAIR (440).
THURSDAY NIGHT
SKY/WEATHER.........CLEAR (0-10 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....49-52.
MAX HUMIDITY........70-75 PERCENT.
WIND (20 FT)........NORTH WINDS 5 TO 10 MPH.
MIXING HEIGHT.......600 FT AGL IN THE EVENING AND OVERNIGHT.
TRANSPORT WINDS.....NORTH AROUND 11 MPH.
VENTILATION INDEX...FAIR (440) DECREASING TO POOR (40) OVERNIGHT.
FRIDAY
SKY/WEATHER.........SUNNY (0-5 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....84-87.
MIN HUMIDITY........15-20 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NORTH 5 TO 7 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......6900 FT AGL EARLY IN THE MORNING.
TRANSPORT WINDS.....NORTH AROUND 7 MPH.
VENTILATION INDEX...POOR (40) INCREASING TO FAIR (300) IN THE
AFTERNOON.
FORECASTER...NWS SEATTLE
REQUESTED BY...AMY LOWE
TYPE OF REQUEST...WILDFIRE
.TAG 2517703.0/PDT
.DELDT 07/09/25
.FORMATTERVERSION 2.0.0
.EMAIL AMY.E.LOWE@USDA.GOV
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page