820
FNUS76 KPDT 262104
FWSPDT
SPOT FORECAST FOR BOLOGNA...USFS
NATIONAL WEATHER SERVICE PENDLETON OR
204 PM PDT WED AUG 26 2026
FORECAST IS BASED ON FORECAST START TIME OF 1400 PDT ON AUGUST 26.
***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
BREEZY WEST TO NORTHWEST WINDS WILL DEVELOP IN THE
AFTERNOONS TODAY AND TOMORROW, WITH LIGHT WINDS IN THE OVERNIGHT
AND MORNING HOURS. AFTERNOON RHS ARE EXPECTED TO LOWER INTO THE
LOWER TEENS THIS AFTERNOON, THEN IN THE LOWER 20S TOMORROW WITH
COOLER TEMPERATURES. UNSTABLE CONDITIONS ARE EXPECTED THIS
AFTERNOON OVER THE FIRE AREA, BUT WILL BE WEAKER TOMORROW. LOW
LEVEL INVERSION IS EXPECTED TO DEVELOP AROUND 9PM THIS EVENING,
THEN LIFTING GRADUALLY STARTING 8AM TOMORROW.
REST OF TODAY
SKY/WEATHER.........SUNNY (15-25 PERCENT). PATCHY SMOKE LATE IN THE
AFTERNOON.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.1 PERCENT.
MAX TEMPERATURE.....89-92.
MIN HUMIDITY........11-16 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 10 MPH SHIFTING TO THE WEST
7 TO 13 MPH WITH GUSTS TO AROUND 19 MPH AFTER
3PM.
RIDGETOP WIND.......SOUTHWEST 6 TO 12 MPH SHIFTING TO THE WEST
8 TO 15 MPH WITH GUSTS TO AROUND 23 MPH AFTER
3PM.
MIXING HEIGHT.......10000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 17 MPH SHIFTING TO THE
NORTHWEST AROUND 9 MPH LATE IN THE AFTERNOON.
VENTILATION INDEX...VERY HIGH (1050).
TIME (PDT) 2 PM 4 PM 6 PM 8 PM 10 PM MIDNGT
CHC OF LTNG (%).0 0 0 0 0 0
TEMP............89 91 88 76 72 67
RH..............16 14 19 30 35 40
20 FT WIND......SW 7 W 9 N 10 N 12 N 7 N 4
20 FT WIND GUST.12 13 16 18
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT) THEN BECOMING
MOSTLY CLOUDY (75-85 PERCENT). PATCHY SMOKE.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.1 PERCENT.
MIN TEMPERATURE.....56-59.
MAX HUMIDITY........51-56 PERCENT.
WIND (20 FT)........NORTH WINDS 7 TO 13 MPH WITH GUSTS TO AROUND
19 MPH DECREASING TO 4 TO 7 MPH AROUND 11PM,
THEN BECOMING DOWNSLOPE WINDS AFTER 1AM.
RIDGETOP WIND.......NORTH WINDS 8 TO 15 MPH WITH GUSTS TO AROUND
23 MPH DECREASING TO 5 TO 10 MPH AROUND 10PM,
THEN DECREASING TO 3 TO 6 MPH AROUND 1AM.
MIXING HEIGHT.......700 FT AGL IN THE EVENING.
TRANSPORT WINDS.....NORTHWEST 5 TO 12 MPH BECOMING LIGHT.
VENTILATION INDEX...MODERATE (260-280) DECREASING TO LOW (30)
OVERNIGHT.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT) THEN BECOMING
SUNNY (15-25 PERCENT). PATCHY SMOKE IN THE
MORNING AND EARLY AFTERNOON.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....82-85.
MIN HUMIDITY........22-27 PERCENT.
WIND (20 FT)........DOWNSLOPE WINDS BECOMING UPSLOPE AROUND 8AM,
THEN BECOMING WEST WINDS 5 TO 10 MPH AROUND
11AM, THEN SHIFTING TO THE NORTHWEST 7 TO
13 MPH WITH GUSTS UP TO 18 MPH AROUND 3PM.
RIDGETOP WIND.......NORTH WINDS 3 TO 6 MPH BECOMING LIGHT VARIABLE
WINDS AROUND 8AM, THEN BECOMING WEST WINDS
5 TO 11 MPH AROUND 11AM, THEN INCREASING TO
8 TO 14 MPH WITH GUSTS TO AROUND 22 MPH AFTER
3PM.
MIXING HEIGHT.......7000 FT AGL EARLY IN THE MORNING.
TRANSPORT WINDS.....LIGHT WINDS BECOMING SOUTHWEST 8 TO 13 MPH LATE
IN THE MORNING, THEN SHIFTING TO THE NORTHWEST
LATE IN THE AFTERNOON.
VENTILATION INDEX...LOW (30) INCREASING TO MODERATE (500) IN THE
AFTERNOON.
FORECASTER...LAWHORN
REQUESTED BY...KRISTEN MARSHALL
TYPE OF REQUEST...WILDFIRE
.TAG 2620625.0/PDT
.DELDT 08/26/26
.FORMATTERVERSION 2.0.0
.EMAIL KRISTEN.MARSHALL@USDA.GOV,JAIMME.NOONCHESTER@USDA.GOV
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