157
FNUS76 KPDT 051240
FWSPDT
SPOT FORECAST FOR BOLOGNA...USFS
NATIONAL WEATHER SERVICE PENDLETON OR
540 AM PDT WED AUG 5 2026
FORECAST IS BASED ON FORECAST START TIME OF 0600 PDT ON AUGUST 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
ELEVATED FIRE WEATHER CONDITIONS WITH MINIMUM RELATIVE
HUMIDITIES DROPPING INTO THE SINGLE DIGITS WITH POOR TO FAIR OVERNIGHT
RECOVERIES. WINDS WILL BE LIGHT IN NATURE WITH SUSTAINED WINDS UNDER 12
MPH THROUGH THE FORECAST PERIOD. SMOKE AND HAZE LINGER IN THE AREA FROM
WILDLAND FIRES, BRINGING SUB-PAR AIR QUALITY IMPACTING THE REGION.
TODAY
SKY/WEATHER.........SUNNY (0-10 PERCENT). AREAS OF SMOKE.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....88-93.
MIN HUMIDITY........9-14 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NORTHWEST 5 TO 10 MPH BY
2 PM.
RIDGETOP WIND.......LIGHT WINDS BECOMING NORTHWEST 7 TO 12 MPH BY
2 PM.
MIXING HEIGHT.......6100 FT AGL EARLY IN THE MORNING.
TRANSPORT WINDS.....LIGHT WINDS BECOMING WEST 5 TO 10 MPH LATE IN
THE MORNING.
VENTILATION INDEX...LOW (30) INCREASING TO MODERATE (320) IN THE
AFTERNOON.
TIME (PDT) 2 PM 4 PM 6 PM 8 PM 10 PM 12 AM
CHC OF LTNG (%).0 0 0 0 0 0
TEMP............88 90 88 79 70 67
RH..............13 12 14 20 24 25
20 FT WIND......NW 4 NW 5 NW 5 N 4 N 3 N 3
20 FT WIND GUST.7 10 11 10 7 5
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT). AREAS OF SMOKE.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....59-64.
MAX HUMIDITY........25-30 PERCENT.
WIND (20 FT)........NORTH WINDS 5 TO 10 MPH EARLY IN THE EVENING
BECOMING LIGHT BY 10 PM.
RIDGETOP WIND.......NORTH WINDS 7 TO 12 MPH EARLY IN THE EVENING
BECOMING LIGHT BY 10 PM.
MIXING HEIGHT.......4800 FT AGL EARLY IN THE EVENING.
TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH BECOMING LIGHT.
VENTILATION INDEX...LOW (190) DECREASING TO LOW (30) OVERNIGHT.
THURSDAY
SKY/WEATHER.........SUNNY (0-10 PERCENT). AREAS OF SMOKE.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....92-97.
MIN HUMIDITY........7-12 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING WEST 3 TO 8 MPH BY
11 AM.
RIDGETOP WIND.......LIGHT WINDS BECOMING WEST 5 TO 10 MPH BY
11 AM.
MIXING HEIGHT.......9000 FT AGL EARLY IN THE MORNING.
TRANSPORT WINDS.....LIGHT WINDS BECOMING WEST 9 TO 14 MPH EARLY IN
THE MORNING.
VENTILATION INDEX...LOW (30) INCREASING TO HIGH (690) IN THE
AFTERNOON.
FORECASTER...DAY
REQUESTED BY...KRISTEN MARSHALL
TYPE OF REQUEST...WILDFIRE
.TAG 2618992.0/PDT
.DELDT 08/05/26
.FORMATTERVERSION 2.0.0
.EMAIL KRISTEN.MARSHALL@USDA.GOV
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