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Spot Forecast
Issued by NWS Portland, OR

000
FNUS76 KPQR 200100
FWSPQR

Spot Forecast for Fairdale Road Fire...Oregon Department of Forestry
National Weather Service Portland OR
600 PM PDT Fri Apr 19 2024

Forecast is based on forecast start time of 1800 PDT on April 19.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...Dry conditions continue tonight, then a frontal
system will return rain to the burn site Saturday afternoon and
evening. Winds out of the northeast will gradually weaken
overnight, then shift westerly and strengthen again Saturday
afternoon. RHs will moderate tonight, lowering into the 40s
Saturday with very good recoveries Saturday night. Scattered
showers continue Sunday, with conditions drying again by Sunday
night.

.TONIGHT...

Sky/weather.........Partly cloudy.
CWR.................0 percent.
Min temperature.....44 to 49.
Max humidity........52 to 57 percent.
Wind (20 ft)........
 Slope/valley.......Northeast winds 7 to 12 mph with gusts up to 15
                    mph becoming north winds 4 to 7 mph after 2100.
 Ridgetop...........Northeast winds 8 to 13 mph with gusts up to 15
                    mph becoming north winds 4 to 8 mph after 2100.
Mixing height.......400 ft AGL.
Transport winds.....Northeast winds 8 to 13 mph lowering to 4 to 7
mph after midnight.
Haines Index........4 (low).
Haines Index (Mid)..4 (low).

.SATURDAY...

Sky/weather.........Mostly sunny then becoming mostly cloudy. Rain
                    likely after 1200.
CWR.................15 to 20 percent.
Max temperature.....58 to 62.
Min humidity........41 to 46 percent.
Wind (20 ft)........
 Slope/valley.......Variable winds 3 to 5 mph becoming southwest 8
to 12 mph with gusts up to 20 mph after 1200.
 Ridgetop...........Variable winds 3 to 5 mph becoming southwest 10
to 15 mph with gusts 20 to 25 mph after 1200.
Mixing height.......3500 to 4000 ft AGL.
Transport winds.....Northeast winds 4 to 8 mph shifting southwest
15 to 20 mph after 1100.
Haines Index........3 (very low).
Haines Index (Mid)..5 (moderate).

.SATURDAY NIGHT...

Sky/weather.........Partly cloudy. Chance of rain showers.
CWR.................11 percent.
Min temperature.....36 to 41.
Max humidity........85 to 90 percent.
Wind (20 ft)........
 Slope/valley.......West winds 5 to 8 mph.
 Ridgetop...........West winds 7 to 12 mph.
Mixing height.......500 ft AGL.
Transport winds.....West 10 to 15 mph.
Haines Index........3 (very low).
Haines Index (Mid)..4 (low).

$$
Forecaster...HEC/Alviz
Requested by...Renae Shippey
Type of request...WILDFIRE
.TAG 2411457.0/PQR
.DELDT 04/19/24
.FormatterVersion 2.0.0
.EMAIL renae.shippey@odf.oregon.gov