682
FNUS76 KPQR 072053
FWSPQR

Spot Forecast for Dorena Pile Burn...USFS
National Weather Service Portland OR
1253 PM PST Sun Dec 7 2025

Forecast is based on ignition time of 0700 PST on December 08.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...A frontal system will be approaching the burn site
Monday with light rain and south to southwest winds less than 10
mph during the day. Monday night, rain increases in intensity,
with moderate to heavy rain through Tuesday. Winds increase
Monday night with south winds up to 10 mph and gusts up to 20
mph at times through Tuesday.

.MONDAY...

Sky/weather.........Cloudy with light rain.
CWR.................15 percent increasing to 50 percent late in the
                    afternoon.
Max temperature.....Around 59.
Min humidity........88 percent.
Wind (20 ft)........
 Slope/valley.......South winds 5 to 8 mph shifting to the southwest
                    in the afternoon.
Mixing height.......2200 ft AGL.
Transport winds.....Southwest 13 to 18 mph.

TIME (PST)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........91  86  94  92  89  87  88  90  87  92  92
Weather cov.....DEF DEF DEF LKY LKY LKY LKY LKY LKY DEF DEF
Weather type....RN  RN  RN  RN  RN  RN  RN  RN  RN  RN  RN
Tstm cov........
CWR.............20  20  20  20  20  20  20  20  20  50  50
Temp............50  50  50  51  53  55  57  57  58  57  56
RH..............95  98  99  100 99  95  92  87  86  88  87
20 FT wind dir..S   S   S   S   SW  SW  SW  SW  SW  SW  SW
20 FT wind spd..6   6   6   6   7   7   7   6   6   6   6
20 FT wind gust.10  11  12  13  14  14  14  14  14  14  14
Mix hgt (kft)...1.2 1.4 1.5 1.7 2.1 2.2 2.1 2.0 2.0 1.9 1.7
Transp wind dir.S   SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
Transp wind spd.13  13  13  15  17  18  16  14  14  14  13

.MONDAY NIGHT...

Sky/weather.........Cloudy. Rain.
CWR.................76 percent increasing to 90 percent after 3 am.
Min temperature.....Around 50.
Max humidity........100 percent.
Wind (20 ft)........
 Slope/valley.......Southwest winds 6 to 10 mph. Gusts up to 21 mph
                    in the evening and overnight.
Mixing height.......1200 ft AGL.
Transport winds.....Southwest 14 to 18 mph.

TIME (PST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........92  92  92  92  92  92  92  92  92  92  96  96
Weather cov.....DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF
Weather type....RN  RN  RN  RN  RN  RN  RN  RN  RN  RN  RN  RN
Tstm cov........
CWR.............80  80  80  80  80  80  80  80  80  80  90  90
Temp............55  52  52  52  52  52  51  51  51  51  51  51
RH..............89  92  93  92  90  90  91  92  92  92  92  93
20 FT wind dir..SW  SW  SW  SW  S   S   S   S   S   S   S   S
20 FT wind spd..6   6   6   6   8   8   8   7   7   7   6   6
20 FT wind gust.14  16  16  16  17  17  17  16  16  16  14  14
Mix hgt (kft)...1.7 1.2 1.2 1.3 1.4 1.4 1.4 1.4 1.4 1.3 1.4 1.4
Transp wind dir.SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
Transp wind spd.14  14  14  15  16  17  18  18  18  18  18  18

.TUESDAY...

Sky/weather.........Cloudy. Rain.
CWR.................90 percent.
Max temperature.....Around 58.
Min humidity........94 percent.
Wind (20 ft)........
 Slope/valley.......South winds around 6 mph. Gusts up to 20 mph
                    early in the afternoon.
Mixing height.......1900 ft AGL.
Transport winds.....Southwest 12 to 17 mph.

TIME (PST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........96  96  96  96  98  98  98  98  98  98  99  99
Weather cov.....DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF
Weather type....RN  RN  RN  RN  RN  RN  RN  RN  RN  RN  RN  RN
Tstm cov........
CWR.............90  90  90  90  90  90  90  90  90  90  90  90
Temp............51  51  51  51  52  53  54  55  56  56  56  56
RH..............94  96  98  99  100 100 100 99  98  97  96  96
20 FT wind dir..S   S   S   S   S   S   S   S   S   S   S   S
20 FT wind spd..6   6   6   6   6   6   6   6   6   6   6   6
20 FT wind gust.14  14  14  14  14  14  14  16  16  16  16  16
Mix hgt (kft)...1.5 1.5 1.6 1.7 1.8 1.9 1.9 1.9 1.8 1.8 1.6 1.4
Transp wind dir.SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
Transp wind spd.17  17  17  17  17  17  17  16  15  13  12  12

$$
Forecaster...HEC
Requested by...Fabian Garza
Type of request...PRESCRIBED
.TAG 2526983.0/PQR
.DELDT 12/07/25
.FormatterVersion 2.0.0
.EMAIL fabian.garza@usda.gov,joshua.d.collins@usda.gov,stacystacy.ainslie@usda.gov