260
FNUS76 KPDT 271849
FWSPDT
SPOT FORECAST FOR BOLOGNA...USFS
NATIONAL WEATHER SERVICE PENDLETON OR
1149 AM PDT THU AUG 27 2026
FORECAST IS BASED ON FORECAST START TIME OF 1230 PDT ON AUGUST 27.
***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
DRY CONDITIONS WILL PERSIST OVER THE FIRE AREA
THROUGH THE PERIOD. WINDS WILL BE FROM THE W AT 5-8 MPH SHIFTING
TO THE N AFTER 1800. DAYTIME HUMIDITY WILL BE IN THE LOW 20%.
WINDS OVERNIGHT WILL BE LIGHT AND VARIABLE WITH RECOVERIES IN THE
MID TO UPPER 50%. FRIDAY WILL SEE LIGHT WINDS SHIFTING TO THE
SW AT 5-7 MPH AFTER 1100 THEN W AT 5-8 MPH THEN NW AFTER 1600.
DAYTIME HUMIDITY WILL BE IN THE UPPER TEENS.
REST OF TODAY
SKY/WEATHER.........SUNNY (10-20 PERCENT). PATCHY SMOKE EARLY IN
THE AFTERNOON.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.1 PERCENT.
MAX TEMPERATURE.....81-84.
MIN HUMIDITY........22-27 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 8 MPH.
RIDGETOP WIND.......WEST WINDS 6 TO 9 MPH.
MIXING HEIGHT.......6800 FT AGL.
TRANSPORT WINDS.....WEST 9 TO 14 MPH SHIFTING TO THE NORTHWEST LATE
IN THE AFTERNOON.
VENTILATION INDEX...HIGH (560-570).
TIME (PDT) NOON 2 PM 4 PM 6 PM 8 PM 10 PM
CHC OF LTNG (%).0 0 0 0 0 0
TEMP............77 82 83 81 71 66
RH..............34 26 26 30 37 42
20 FT WIND......W 6 W 8 W 8 N 8 N 8 N 6
20 FT WIND GUST.10 13 14 14 14 10
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.1 PERCENT.
MIN TEMPERATURE.....51-54.
MAX HUMIDITY........56-61 PERCENT.
WIND (20 FT)........NORTH WINDS 5 TO 10 MPH AFTER 1800 BECOMING
LIGHT OVERNIGHT.
RIDGETOP WIND.......NORTH WINDS 7 TO 12 MPH AFTER 1800 BECOMING
VARIABLE 3 TO 5 MPH OVERNIGHT.
MIXING HEIGHT.......1000 FT AGL IN THE EVENING.
TRANSPORT WINDS.....NORTHWEST 6 TO 14 MPH IN THE EVENING AND
OVERNIGHT BECOMING LIGHT.
VENTILATION INDEX...MODERATE (270) DECREASING TO LOW (30)
OVERNIGHT.
FRIDAY
SKY/WEATHER.........SUNNY (15-25 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.1 PERCENT.
MAX TEMPERATURE.....81-84.
MIN HUMIDITY........19-24 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 7 MPH AFTER
1100 SHIFTING TO THE WEST 5 TO 8 MPH AFTER 1400
SHIFTING TO THE NORTHWEST AFTER 1600.
RIDGETOP WIND.......VARIABLE WINDS 3 TO 5 MPH BECOMING SOUTHWEST 7
TO 9 MPH AFTER 1100 SHIFTING TO THE WEST 7 TO
10 AFTER 1400 THEN SHIFTING NORTHWEST AFTER
1600.
MIXING HEIGHT.......6400 FT AGL EARLY IN THE MORNING.
TRANSPORT WINDS.....LIGHT WINDS BECOMING SOUTHWEST 8 TO 12 MPH LATE
IN THE MORNING, THEN SHIFTING TO THE NORTHWEST
LATE IN THE AFTERNOON.
VENTILATION INDEX...LOW (30) INCREASING TO MODERATE (400-420) IN
THE AFTERNOON.
FORECASTER...BENNESE
REQUESTED BY...KRISTEN MARSHALL
TYPE OF REQUEST...WILDFIRE
.TAG 2620625.1/PDT
.DELDT 08/27/26
.FORMATTERVERSION 2.0.0
.EMAIL KRISTEN.MARSHALL@USDA.GOV,JAIMME.NOONCHESTER@USDA.GOV
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