283
FNUS76 KPDT 051314
FWSPDT
SPOT FORECAST FOR COLD CANAL 505A...USFS
NATIONAL WEATHER SERVICE PENDLETON OR
614 AM PDT TUE MAY 5 2026
FORECAST IS BASED ON IGNITION TIME OF 0700 PDT ON MAY 05.
***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
WARM, DRY CONDITIONS ARE FORECAST TODAY. WINDS
ARE EXPECTED (80 PERCENT CONFIDENCE) TO BECOME NORTHERLY LATER THIS
MORNING THROUGH AFTERNOON, AND GUSTY ALONG RIDGETOPS. THERE IS A VERY
LOW (5 PERCENT) CHANCE OF SHOWERS AND EVEN LOWER (1 PERCENT) CHANCE OF
THUNDERSTORMS. OVERNIGHT AND WEDNESDAY, LIGHTER DIURNALLY AND
TERRAIN-DRIVEN WINDS ARE FORECAST. MODERATE OVERNIGHT RH RECOVERY IS
FORECAST FOR MID-SLOPES WITH GOOD TO EXCELLENT RECOVERY IN DRAINAGES.
REST OF TODAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.1 PERCENT.
MAX TEMPERATURE.....60-63 MID-SLOPES, 57-60 DRAINAGES.
MIN HUMIDITY........30-35 PERCENT, MID-SLOPES, 35-40 PERCENT
DRAINAGES.
WIND (20 FT)........NORTH WINDS 4-8 MPH WITH GUSTS OF 15-20 MPH
LATE MORNING AND AFTERNOON.
RIDGETOP WIND.......NORTH WINDS 10-15 MPH IN THE MORNING, INCREASING
TO 15-20 MPH WITH GUSTS OF 25-35 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......INCREASING TO 6000-6500 FT AGL LATE MORNING.
TRANSPORT WINDS.....NORTH 10-15 MPH INCREASING TO 17-22 MPH IN THE
AFTERNOON.
VENTILATION INDEX...MODERATE (200) INCREASING TO VERY HIGH (1050)
IN THE AFTERNOON.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....45-48 MID-SLOPES, 37-40 DRAINAGES.
MAX HUMIDITY........51-56 PERCENT MID-SLOPES, 80-85 PERCENT DRAINAGES.
WIND (20 FT)........NORTH WINDS 4-8 MPH WITH GUSTS OF 15-20 MPH IN
THE EARLY EVENING, BECOMING DRAINAGE WINDS 1-5 MPH
OVERNIGHT.
RIDGETOP WIND.......NORTH WINDS 15-20 MPH WITH GUSTS OF 25-35 MPH IN THE
EARLY EVENING, DECREASING TO 3-7 MPH OVERNIGHT.
MIXING HEIGHT.......DECREASING TO 400-900 FT AGL OVERNIGHT.
TRANSPORT WINDS.....NORTHWEST 6-12 MPH.
VENTILATION INDEX...MODERATE (400) DECREASING TO LOW (30)
OVERNIGHT.
WEDNESDAY
SKY/WEATHER.........SUNNY (10-20 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.1 PERCENT.
MAX TEMPERATURE.....64-67 MID-SLOPES, 61-64 DRAINAGES.
MIN HUMIDITY........25-30 PERCENT MID-SLOPES, 30-35 PERCENT DRAINAGES.
WIND (20 FT)........BECOMING UPSLOPE WINDS 2-5 MPH EARLY MORNING, THEN
SHIFTING TO THE NORTHWEST 3-6 MPH LATE MORNING.
RIDGETOP WIND.......BECOMING UPSLOPE WINDS 2-5 MPH EARLY MORNING, THEN
SHIFTING TO THE NORTHWEST 5-8 MPH LATE MORNING.
MIXING HEIGHT.......INCREASING TO 5000-5500 FT AGL BY LATE MORNING.
TRANSPORT WINDS.....NORTH TO NORTHWEST 5-9 MPH.
VENTILATION INDEX...LOW (30) INCREASING TO MODERATE (460) IN THE
AFTERNOON.
FORECASTER...PLUNKETT
REQUESTED BY...ANDREW HAYES
TYPE OF REQUEST...PRESCRIBED
.TAG 2612019.4/PDT
.DELDT 05/05/26
.FORMATTERVERSION 2.0.0
.EMAIL MARK.MOELLER@USDA.GOV,EAGLECAPWFM@GMAIL.COM,ANDREW.C.HAYES@USDA.GOV
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