488
FNUS76 KPDT 160955
FWSPDT
SPOT FORECAST FOR OLIVE BUTTE FIRE...USFS
NATIONAL WEATHER SERVICE PENDLETON OR
255 AM PDT THU JUL 16 2026
FORECAST IS BASED ON FORECAST START TIME OF 0900 PDT ON JULY 16.
***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 TRANSPORT WIND
MULTIPLIED BY THE MIXING HEIGHT IN 100'S OF FT.
CATEGORIES ARE A GENERALIZED INDICATOR ONLY:
LOW (< 200), MODERATE (200-500), HIGH (500-700),
AND VERY HIGH (> 700). ***
IF YOU HAVE QUESTIONS OR CONCERNS WITH THIS FORECAST, PLEASE
CONTACT OUR OFFICE AT (541) 276-8134.
DISCUSSION
THERE IS A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS TODAY,
WITH SOME CHANCES THIS MORNING AND AGAIN THIS AFTERNOON.
OTHERWISE IT WILL BE DRY. MIN RH VALUES WILL BE AROUND 20 PERCENT WITH
EXCELLENT OVERNIGHT RECOVERIES.
TODAY
SKY/WEATHER.........SUNNY (15-25 PERCENT). SLIGHT CHANCE (20%) OF SHOWERS
AND THUNDERSTORMS.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.16 PERCENT.
MAX TEMPERATURE.....89-92.
MIN HUMIDITY........19-24 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 8 MPH LATE IN
THE MORNING, THEN SHIFTING TO THE SOUTHWEST IN
THE AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS LATE IN THE AFTERNOON.
RIDGETOP WIND.......EAST WINDS 5 TO 10 MPH, BECOMING SOUTH IN THE LATE MORNING,
THEN SOUTHWEST IN THE AFTERNOON.
MIXING HEIGHT.......10100 FT AGL.
TRANSPORT WINDS.....SOUTH 10 TO 17 MPH SHIFTING TO THE SOUTHWEST
LATE IN THE AFTERNOON.
VENTILATION INDEX...LOW (60) INCREASING TO VERY HIGH (1050) IN THE
AFTERNOON.
TIME (PDT) 9 AM 11 AM 1 PM 3 PM 5 PM 7 PM
CHC OF LTNG (%).0 10 10 20 10 10
TEMP............73 85 89 89 87 83
RH..............41 29 27 24 24 31
20 FT WIND......E 4 S 7 SW 7 SW 6 SW 5 W 3
20 FT WIND GUST.7 14 14 14 11 7
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.6 PERCENT.
MIN TEMPERATURE.....52-55.
MAX HUMIDITY........75-80 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING WEST 5 TO 7 MPH LATE IN
THE EVENING, THEN BECOMING LIGHT OVERNIGHT.
RIDGETOP WIND.......SOUTHWEST WIND 5 TO 10 MPH BECOMING NORTHWEST.
MIXING HEIGHT.......500 FT AGL IN THE EVENING AND OVERNIGHT.
TRANSPORT WINDS.....SOUTHWEST AROUND 12 MPH SHIFTING TO THE
NORTHWEST EARLY IN THE EVENING.
VENTILATION INDEX...LOW (180) DECREASING TO LOW (40) OVERNIGHT.
FRIDAY
SKY/WEATHER.........SUNNY (5-15 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.3 PERCENT.
MAX TEMPERATURE.....89-92.
MIN HUMIDITY........16-21 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 7 MPH LATE
IN THE AFTERNOON, THEN BECOMING LIGHT LATE IN
THE AFTERNOON.
RIDGETOP WIND.......NORTHWEST WIND 5 TO 10 BECOMING WEST.
MIXING HEIGHT.......8900 FT AGL EARLY IN THE MORNING.
TRANSPORT WINDS.....WEST AROUND 7 MPH SHIFTING TO THE SOUTHWEST 13
TO 16 MPH LATE IN THE MORNING.
VENTILATION INDEX...LOW (60) INCREASING TO VERY HIGH (910) IN THE
AFTERNOON.
FORECASTER...NIERENBERG
REQUESTED BY...LAUREL CLAYSON
TYPE OF REQUEST...WILDFIRE
.TAG 2617456.0/PDT
.DELDT 07/16/26
.FORMATTERVERSION 2.0.0
.EMAIL LAUREL.CLAYSON@GMAIL.COM
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