FNUS76 KPDT 210055
FWSPDT

Spot Forecast for East Beaver...OR-WSA
National Weather Service Pendleton OR
455 PM PST Wed Nov 20 2024

Forecast is based on ignition time of 1000 PST on November 21. 
***Thunderstorms imply gusty and erratic winds***
***Winds are 20 foot 10-minute averages***
***CWR-Chance of wetting rain 0.10 or greater***

If you have questions or concerns with this forecast, please
contact our office at (541) 276-8134.

.DISCUSSION...The strong, upper level low pressure system located
offshore will continue to bring unstable weather across the fire
site. Persistent southwest flow aloft will keep rain chances
(60-70%) at the fire location Thursday before chances increase 
(75-95%) on Friday associated with a passing surface front. Winds
will be light and variable Thursday, but will become breezy on 
Friday associated with the passing front with gusts of 25 mph
possible out of the southwest. High and low temperatures will be 
increasing 1-4 degrees each day, as afternoon humidities hover 
around 80% both days with excellent overnight recoveries. 


.THURSDAY...

Sky/weather.........Mostly cloudy (70-80 percent). Patchy fog late 
                    in the morning. Rain likely through the day. 
CWR.................17 percent increasing to 35 percent late in the 
                    afternoon. 
LAL.................1. 
Max temperature.....45-48. 
Min humidity........80-85 percent. 
Wind (20 ft)........Light and variable winds becoming south 2 
                    to 7 mph after 10 am.
Mixing height.......1300 ft AGL. 
Transport winds.....South 6 to 10 mph. 
Haines Index........2 or very low potential for large plume 
                    dominated fire growth. 

TIME (PST)      10 AM  NOON   2 PM   4 PM   6 PM   8 PM   
Temp............37     42     43     43     42     39     
RH..............96     89     85     86     88     92     
20 ft wind......S 4    S 3    SE 2   S 3    S 2    E 2    
20 ft wind gust.6      5      5      5      5      5      

.THURSDAY NIGHT...

Sky/weather.........Cloudy (85-95 percent). Rain likely early in 
                    the evening, then rain in the late evening and 
                    overnight. Patchy fog overnight. 
CWR.................35 percent increasing to 72 percent in the late 
                    evening and overnight, then decreasing to 51 
                    percent after 3 am. 
LAL.................1. 
Min temperature.....35-38. 
Max humidity........91-96 percent. 
Wind (20 ft)........South winds 2 to 5 mph becoming light and
                    variable after 5 pm. 
Mixing height.......600 ft AGL. 
Transport winds.....South around 6 mph shifting to the southeast 6 
                    to 10 mph in the evening and overnight, then 
                    shifting to the south around 8 mph after 3 am. 
Haines Index........2 or very low potential for large plume 
                    dominated fire growth. 

.FRIDAY...

Sky/weather.........Mostly cloudy (65-75 percent) then becoming 
                    mostly sunny (45-55 percent). Rain. 
CWR.................51 percent decreasing to 28 percent in the late 
                    morning and afternoon. 
LAL.................1. 
Max temperature.....Around 50. 
Min humidity........75-80 percent. 
Wind (20 ft)........Light and variable through the morning, 
                    becoming southwest 9 to 14 mph with gusts up 
                    to 25 mph between noon and 4 pm. 
Mixing height.......3600 ft AGL. 
Transport winds.....Southwest 6 to 14 mph increasing to around 31 
                    mph early in the afternoon, then decreasing 
                    to around 16 mph late in the afternoon. 
Haines Index........2 or very low potential for large 
                    plume dominated fire growth. 

$$
Forecaster...Callihan
Requested by...Joel Thompson
Type of request...PRESCRIBED
.TAG 2427126.0/PDT
.DELDT 11/20/24
.FormatterVersion 2.0.0
.EMAIL joel.thompson@ctwsbnr.org