454
FNUS76 KPDT 170524
FWSPDT
SPOT FORECAST FOR PILOT...OREGON DEPARTMENT OF FORESTRY
NATIONAL WEATHER SERVICE PENDLETON OR
1024 PM PDT THU JUL 16 2026
FORECAST IS BASED ON FORECAST START TIME OF 2200 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
HIGH PRESSURE STRENGTHENS TONIGHT, DECREASING WINDS
AND KEEPING SKIES CLEAR THROUGH SATURDAY. A WARMING AND DRYING
TREND WILL INITIATE AND PERSIST INTO THE WEEKEND. DIURNAL WINDS
WILL BECOME NORTHWEST EARLY IN THE AFTERNOON AND PEAK BETWEEN
1700-2000 BOTH FRIDAY AND SATURDAY. WINDS WILL BECOMING LIGHT
BETWEEN 2200 AND 2300 EACH NIGHT. INVERSION BREAK AROUND 0800
FRIDAY AND CLOSER TO 0900 ON SATURDAY.
REST OF TONIGHT
SKY/WEATHER.........CLEAR (0-10 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....AROUND 50.
MAX HUMIDITY........58-63 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 11 MPH BECOMING LIGHT.
RIDGETOP WIND.......NORTHWEST WINDS 6 TO 12 MPH BECOMING LIGHT.
MIXING HEIGHT.......1700 FT AGL LATE IN THE EVENING.
TRANSPORT WINDS.....NORTHWEST 6 TO 15 MPH IN THE LATE EVENING AND
OVERNIGHT BECOMING LIGHT.
VENTILATION INDEX...LOW (30) OVERNIGHT.
TIME (PDT) 10 PM MIDNGT 2 AM 4 AM 6 AM 8 AM
CHC OF LTNG (%).0 0 0 0 0 0
TEMP............68 62 56 50 48 55
RH..............38 43 52 60 63 49
20 FT WIND......NW 11 NW 7 NW 5 N 2 N 2 N 2
20 FT WIND GUST.14 10 6
FRIDAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....86-89.
MIN HUMIDITY........11-16 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 4 TO 8 MPH BY
1100, THEN SHIFTING TO THE NORTHWEST 8 TO 14
MPH BY 1500.
RIDGETOP WIND.......LIGHT WINDS BECOMING SOUTHWEST 5 TO 10 MPH
BY 1100, THEN SHIFTING TO THE NORTHWEST
10 TO 16 MPH BY 1500.
MIXING HEIGHT.......8000 FT AGL EARLY IN THE MORNING.
TRANSPORT WINDS.....LIGHT WINDS BECOMING SOUTHWEST 5 TO 13 MPH
EARLY IN THE MORNING, THEN SHIFTING TO THE
NORTHWEST AROUND 14 MPH LATE IN THE AFTERNOON.
VENTILATION INDEX...LOW (30) INCREASING TO HIGH (610) IN THE
AFTERNOON.
FRIDAY NIGHT
SKY/WEATHER.........CLEAR (0-10 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....50-53.
MAX HUMIDITY........54-59 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 8 TO 14 MPH BECOMING LIGHT
AFTER 2300.
RIDGETOP WIND.......NORTHWEST WINDS 10 TO 16 MPH BECOMING LIGHT
AFTER 2300.
MIXING HEIGHT.......1200 FT AGL IN THE EVENING.
TRANSPORT WINDS.....NORTH 7 TO 15 MPH BECOMING LIGHT.
VENTILATION INDEX...MODERATE (400) DECREASING TO LOW (30)
OVERNIGHT.
SATURDAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....AROUND 90.
MIN HUMIDITY........10-15 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NORTHWEST 6 TO 12 MPH
AFTER 1300.
RIDGETOP WIND.......LIGHT WINDS BECOMING NORTHWEST 7 TO 14 MPH
AFTER 1300.
MIXING HEIGHT.......8200 FT AGL EARLY IN THE MORNING.
TRANSPORT WINDS.....LIGHT WINDS BECOMING WEST 5 TO 14 MPH EARLY IN
THE MORNING.
VENTILATION INDEX...LOW (30) INCREASING TO HIGH (610) IN THE
AFTERNOON.
FORECASTER...CALLIHAN
REQUESTED BY...SITL
TYPE OF REQUEST...WILDFIRE
.TAG 2617544.0/PDT
.DELDT 07/16/26
.FORMATTERVERSION 2.0.0
.EMAIL MCKENNA.ARMANTROUT@ODF.OREGON.GOV
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