591
FNUS76 KPDT 060653
FWSPDT

Spot Forecast for YTC FD RX...Yakima Training Center FD
National Weather Service Pendleton OR
1153 PM PDT Wed Jun 5 2024

Forecast is based on ignition time of 0600 PDT on June 06.
***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 upper level ridge, that built over the fire area
Wednesday and Thursday, will suppress Thursday evening into Friday
as a shortwave passes north along the Canadian border. This will
bring in brief partly cloudy skies Thursday afternoon before
clearing by the evening, with the main concern being that of
breezy winds. The passing shortwave will lead to gusts of up to 30
mph, peaking between 7 PM Thursday and 2 AM Friday. A surface low
pressure will approach from the southeast Friday, shifting wind
directions from the northwest to the northeast by 7-8 AM.
Temperatures warm and humidities drop slightly Friday.

.THURSDAY NIGHT...

Sky/weather.........Mostly clear (10-20 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....56-59.
Max humidity........47-52 percent.
Wind (20 ft)........Northwest winds 10 to 20 mph with gusts of
                    up to 30 mph.
Mixing height.......2900 ft AGL early in the evening.
Transport winds.....Northwest around 25 mph.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FRIDAY...

Sky/weather.........Sunny (10-20 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....81-84.
Min humidity........15-20 percent.
Wind (20 ft)........Northwest winds 8 to 15 mph shifting to the
                    northeast 5 to 10 mph in the morning.
Mixing height.......5200 ft AGL late in the morning.
Transport winds.....North around 15 mph.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

$$
Forecaster...Callihan
Requested by...Joshua Thompson
Type of request...PRESCRIBED
.TAG 2415685.0/PDT
.DELDT 06/05/24
.FormatterVersion 2.0.0
.EMAIL joshua.a.thompson36.civ@army.mil