081
FNUS76 KPDT 170402
FWSPDT
SPOT FORECAST FOR ARLINGTON...OSFM
NATIONAL WEATHER SERVICE PENDLETON OR
902 PM PDT THU JUL 16 2026
FORECAST IS BASED ON FORECAST START TIME OF 2100 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
CLEAR SKIES PERSIST THROUGH SATURDAY AS A WARMING
AND DRYING TREND INITIATES INTO THE WEEKEND. WINDS WILL SLOWLY
DECREASE OVERNIGHT INTO FRIDAY MORNING, BUT WILL INCREASE THROUGH
THE AFTERNOON AND PEAK BETWEEN 1800 AND MIDNIGHT. A SIMILAR SETUP
INTO SATURDAY AS WINDS DROP SLIGHTLY OVERNIGHT AND INCREASE
THROUGH THE MORNING HOURS TO PEAK BETWEEN 1600-2000. WIND
DIRECTIONS PRIMARILY OUT OF THE WEST, SOUTHWEST OVERNIGHT INTO
THE EARLY MORNING HOURS BOTH FRIDAY AND SATURDAY.
REST OF TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.1 PERCENT.
MIN TEMPERATURE.....59-62.
MAX HUMIDITY........51-56 PERCENT.
WIND (20 FT)........WEST WINDS 16 TO 24 MPH WITH GUSTS TO AROUND 31
MPH SHIFTING TO THE SOUTHWEST 9 TO 14 MPH AFTER
0300.
RIDGETOP WIND.......WEST WINDS 18 TO 26 MPH WITH GUSTS AROUND 32
MPH SHIFTING TO THE SOUTHWEST 10 TO 15 MPH
AFTER 0300.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....WEST 23 TO 29 MPH DECREASING TO 14 TO 17 MPH
OVERNIGHT.
VENTILATION INDEX...MODERATE (460) DECREASING TO LOW (130)
OVERNIGHT.
TIME (PDT) 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM 6AM 7AM 8AM
CHC OF LTNG (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............71 69 67 66 65 64 62 61 61 60 63 65
RH..............42 45 48 50 51 52 54 53 55 55 51 47
20 FT WIND DIR..W W W W W W SW SW SW SW W W
20 FT WIND SPD..24 24 22 21 20 18 17 14 14 14 14 14
20 FT WIND GUST.31 30 30 29 26 24 21 19 18 18 18 19
FRIDAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....86-89.
MIN HUMIDITY........15-20 PERCENT.
WIND (20 FT)........WEST WINDS 10 TO 15 MPH WITH GUSTS UP TO
22 MPH INCREASING TO 15 TO 20 MPH WITH
GUSTS UP TO 28 MPH AFTER 1500.
RIDGETOP WIND.......WEST WINDS 12 TO 17 MPH WITH GUSTS UP TO
25 MPH INCREASING TO 17 TO 22 MPH WITH
GUSTS UP TO 30 MPH AFTER 1500.
MIXING HEIGHT.......3900 FT AGL.
TRANSPORT WINDS.....WEST 14 TO 20 MPH.
VENTILATION INDEX...LOW (180) INCREASING TO HIGH (520) IN THE
AFTERNOON.
FRIDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (0-10 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....61-64.
MAX HUMIDITY........46-51 PERCENT.
WIND (20 FT)........WEST WINDS 10 TO 20 MPH. GUSTS UP TO 31 MPH IN
THE EVENING AND OVERNIGHT.
RIDGETOP WIND.......WEST WINDS 12 TO 22 MPH. GUSTS UP TO 33 MPH IN
THE EVENING AND OVERNIGHT.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....WEST 14 TO 20 MPH.
VENTILATION INDEX...MODERATE (340) DECREASING TO LOW (80)
OVERNIGHT.
SATURDAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....89-92.
MIN HUMIDITY........13-18 PERCENT.
WIND (20 FT)........WEST WINDS 10 TO 20 MPH. GUSTS UP TO 28 MPH
INCREASING TO 31 MPH AFTER 1600.
RIDGETOP WIND.......WEST WINDS 12 TO 22 MPH. GUSTS UP TO 30 MPH
INCREASING TO 35 MPH AFTER 1600.
MIXING HEIGHT.......5200 FT AGL.
TRANSPORT WINDS.....WEST 14 TO 20 MPH.
VENTILATION INDEX...LOW (200) INCREASING TO HIGH (640) IN THE
AFTERNOON.
FORECASTER...CALLIHAN
REQUESTED BY...MICHIAL RENAULT
TYPE OF REQUEST...WILDFIRE
.TAG 2617532.0/PDT
.DELDT 07/16/26
.FORMATTERVERSION 2.0.0
.EMAIL MICHIAL.RENAULT@OSFM.OREGON.GOV
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