843  
FNUS76 KPDT 161505  
FWSPDT  
 
SPOT FORECAST FOR RESERVIOR...ODF  
NATIONAL WEATHER SERVICE PENDLETON OR  
805 AM PDT THU JUL 16 2026  
 
FORECAST IS BASED ON FORECAST START TIME OF 0800 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  
OVERALL THREAT FOR STORMS/LIGHTNING HAS DIMINISHED  
DOWN TO 5-10% THIS AFTERNOON WITH THE CONCERNS TODAY EAST AND  
NORTHEAST OF THE WILDFIRE. SOME ISOLATED CU/BUILDING CU THIS  
AFTERNOON, OTHERWISE MOSTLY SUNNY WITH GOOD MIXING. A WEAK FRONT  
WILL ARRIVE LATE TODAY CAUSING WINDS TO SHIFT AND RAMP UP LATE  
THIS AFTERNOON WITH WINDS THEN LESSENING AFTER MIDNIGHT.  
   
TODAY  
 
SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT).  
CWR.................0 PERCENT.  
CHANCE OF LIGHTNING.5 PERCENT.  
MAX TEMPERATURE.....82-85.  
MIN HUMIDITY........28-33 PERCENT.  
WIND (20 FT)........LIGHT WINDS 1 TO 3 MPH BECOMING SOUTHWEST 5 TO  
7 MPH LATE IN THE MORNING, SHIFTING TO THE  
NORTHWEST 12 TO 15 MPH WITH GUSTS 20 TO 25 MPH  
AROUND 1400-1700.  
RIDGETOP WIND.......SOUTHWEST AROUND 5 MPH SHIFTING TO THE NORTHWEST  
AROUND 15 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......6100 FT AGL.  
TRANSPORT WINDS.....SOUTH AROUND 5 MPH BECOMING AROUND 10 MPH LATE IN  
IN THE MORNING, SHIFTING TO THE NORTHWEST AROUND  
15 MPH LATE IN THE AFTERNOON.  
VENTILATION INDEX...HIGH (510).  
 
TIME (PDT) 8 AM 10 AM NOON 2 PM 4 PM 6 PM  
CHC OF LTNG (%).0 0 0 0 0 0  
TEMP............63 70 77 80 80 77  
RH..............62 50 41 33 33 33  
20 FT WIND......SE 4 SW W 8 NW 11 NW 15 NW 15  
20 FT WIND GUST. 12 16 19 20  
   
TONIGHT  
 
SKY/WEATHER.........CLEAR (0-10 PERCENT).  
CWR.................0 PERCENT.  
CHANCE OF LIGHTNING.0 PERCENT.  
MIN TEMPERATURE.....AROUND 50.  
MAX HUMIDITY........64-69 PERCENT.  
WIND (20 FT)........NORTHWEST WINDS 13 TO 17 MPH WITH GUSTS UP TO  
25 MPH INITIALLY BECOMING NORTH 5 TO 10 MPH  
AFTER 2300. LIGHT TERRAIN DRIVEN WINDS 2 TO 4 MPH  
IN THE EARLY MORNING.  
RIDGETOP WIND.......NORTHWEST 15 TO 20 MPH BECOMING NORTH AROUND 10 MPH  
BY 2300, THEN LIGHT WINDS 1 TO 3 MPH IN THE EARLY  
MORNING.  
MIXING HEIGHT.......1300 FT AGL IN THE EVENING.  
TRANSPORT WINDS.....NORTH 9 TO 16 MPH DECREASING TO AROUND 5 MPH  
OVERNIGHT, THEN BECOMING LIGHT SOUTHWEST WINDS  
3 TO 5 MPH BY EARLY IN THE MORNING.  
VENTILATION INDEX...MODERATE (330) DECREASING TO LOW (30)  
OVERNIGHT.  
   
FRIDAY  
 
SKY/WEATHER.........SUNNY (0-10 PERCENT).  
CWR.................0 PERCENT.  
CHANCE OF LIGHTNING.0 PERCENT.  
MAX TEMPERATURE.....83-86.  
MIN HUMIDITY........13-18 PERCENT.  
WIND (20 FT)........LIGHT WINDS 2 TO 4 MPH BECOMING NORTHWEST 7 TO 13  
MPH LATE IN THE MORNING.  
RIDGETOP WIND.......LIGHT WINDS BECOMING NORTHWEST WINDS AROUND 10 MPH.  
MIXING HEIGHT.......6900 FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS BECOMING SOUTHWEST 6 TO 12 MPH  
LATE MORNING, THEN SHIFTING TO THE NORTHWEST  
AROUND 15 MPH LATE IN THE AFTERNOON.  
VENTILATION INDEX...LOW (30) INCREASING TO MODERATE (440) IN THE  
AFTERNOON.  
 
 
FORECASTER...TOWNSEND  
REQUESTED BY...RACHAEL HERKAMP  
TYPE OF REQUEST...WILDFIRE  
.TAG 2617473.0/PDT  
.DELDT 07/16/26  
.FORMATTERVERSION 2.0.0  
.EMAIL RACHAEL.HERKAMP@ODF.OREGON.GOV,ORCOC@FIRENET.GOV  
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab OR Page
The Nexlab WA Page
Main Text Page