Suppression Forecast
Issued by NWS Portland, OR

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FNUS76 KPQR 251329
FWSPQR

Spot Forecast for Buck #2...USFS WIF
National Weather Service Portland OR
629 AM PDT Wed Apr 25 2018

UPDATED FORECAST

Forecast is based on ignition time of 1600 PDT on April 25.
If conditions become unrepresentative...contact the National Weather
Service Portland, Oregon office.

...CONTINUED WARM TODAY WITH RH BELOW 25 PERCENT...

.DISCUSSION...Thermal low pressure near the coast will shift over
the site during the afternoon and evening hours today. This
will result in continued unseasonably warm and dry conditions over
the burn area with diurnally driven winds. Increasing marine
influence should begin to cool temperatures and increase relative
humidities Thursday before a shower or thunderstorm could impact
the site late Thursday or early Friday.

.TODAY...

Sky/weather.........Sunny.
CWR.................0 percent.
LAL.................1.
Max temperature.....84-87.
Min humidity........11-16 percent.
Wind (20 ft)........
 Slope/valley.......Up-slope to 5 mph after 0900 then
                    4 to 8 mph after 1300.
 Ridgetop...........Southwest 4 to 8 mph with gusts to 12
                    mph in the afternoon.
Mixing height.......Increasing to 7000 ft AGL.
Transport winds.....Light wind.
Haines Index(High)..3 (very low).
Haines Index (Mid)..6 (high).
Rainfall amount.....0.00 inches.

TIME             1000      1200       1400     1600     1800
Temp             65-68     74-77      82-85    84-87    81-84
RH               30-35     18-22      12-16    11-15    17-22
20 FT WIND       S 2-4     S 2-5      S 4-8    SW 4-8   SW 4-8
Gust                          8        10        10       10

.TONIGHT...

Sky/weather.........Mostly clear.
CWR.................0 percent.
LAL.................1.
Min temperature.....50-54.
Max humidity........70-75 percent.
Wind (20 ft)........
 Slope/valley.......Downslope to 4 mph by 2100.
 Ridgetop...........East 3-6 mph after 2000.
Mixing height.......7000 ft AGL, decreasing to near surface
                    overnight.
Transport winds.....Northeast to East 4-8 mph.
Haines Index(High)..3 (very low).
Haines Index (Mid)..5 (moderate).
Rainfall amount.....0.00 inches.

.THURSDAY...

Sky/weather.........Mostly sunny in the morning then
                    increasing clouds in the afternoon. A
                    slight chance of showers and thunderstorms
                    beginning around 1700.
CWR.................0 percent.
LAL.................1, becoming 2 by 1700.
Max temperature.....78-81.
Min humidity........28-33 percent.
Wind (20 ft)........
 Slope/valley.......Up-slope to 4 mph, becoming more West 4 to 8
                    mph with gusts to 12 mph in the afternoon.
                    Gusty, erratic wind near any storm.
 Ridgetop...........Southwest 2 to 6 mph, shifting to West 5 to 10
                    mph with gusts to 18 mph in the afternoon.
Mixing height.......Increasing to 5000 ft AGL in the afternoon.
Transport winds.....East 4 to 8 mph, becoming light early in the
                    afternoon, then West to Northwest 5 to 10 mph.
Haines Index(High)..3 (very low).
Haines Index (Mid)..5 (moderate).
Rainfall amount.....0.00 inches.

$$
Forecaster...Weishaar
Requested by...Dirk  Rogers
Type of request...PRESCRIBED
.TAG 1807693.0/PQR
.EMAIL drogers02@fs.fed.us



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