782  
FNUS76 KPDT 191904  
FWSPDT  
 
SPOT FORECAST FOR WILLOW CREEK RX...USFS  
NATIONAL WEATHER SERVICE PENDLETON OR  
1204 PM PDT FRI APR 19 2019  
 
FORECAST IS BASED ON IGNITION TIME OF 1400 PDT ON APRIL 19.  
***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
 
A COLD FRONT WILL SWEEP ACROSS NORTH CENTRAL OREGON  
TODAY WITH THE FRONTAL PASSAGE AT THE BURN SITE BETWEEN 1500-1700.  
THE AIR MASS IS UNSTABLE AHEAD OF THE FRONT WITH ADDITIONAL CUMULUS  
DEVELOPMENT THIS AFTERNOON. ANY THUNDERSTORMS WILL LIKELY BE  
SOUTH AND EAST OF THE BURN SITE. SHOWERS WILL END SATURDAY, AND  
WINDS WILL BE BREEZY DURING THE DAY.  
 
***THANK YOU FOR THE OBSERVATIONS. VERY HELPFUL!***  
   
REST OF TODAY
 
 
SKY/WEATHER.........BECOMING MOSTLY CLOUDY. SHOWERS LIKELY  
AFTER 1400.  
CWR.................30 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....74.  
MIN HUMIDITY........38 PERCENT.  
WIND (20 FT)........WEST-NORTHWEST 4-7 MPH BECOMING NORTHWEST  
9-14 MPH WITH STRONGEST WINDS AFTER 1500.  
RIDGETOP WIND.......SOUTHWEST-WEST 5-10 MPH BECOMING WEST-NORTHWEST  
10-16 MPH AFTER 1500.  
MIXING HEIGHT.......6500 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 16 MPH.  
HAINES INDEX........2 (VERY LOW).  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY. RAIN SHOWERS LIKELY IN THE EVENING,  
THEN A CHANCE OF RAIN SHOWERS OVERNIGHT.  
CWR.................50 PERCENT.  
LAL.................1.  
MIN TEMPERATURE.....45-48.  
MAX HUMIDITY........85-90 PERCENT.  
WIND (20 FT)........NORTHWEST 10-15 MPH GUSTING TO 25 MPH  
DECREASING TO 8-12 MPH OVERNIGHT.  
RIDGETOP WIND.......NORTHWEST-NORTH 10-15 MPH.  
MIXING HEIGHT.......LOWERING TO 2000 FT AGL.  
TRANSPORT WINDS.....NORTHWEST AROUND 16 MPH.  
HAINES INDEX........2 (VERY LOW).  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS IN THE  
MORNING, THEN A SLIGHT CHANCE OF RAIN SHOWERS  
IN THE AFTERNOON.  
CWR.................20 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....58-61.  
MIN HUMIDITY........45-50 PERCENT.  
WIND (20 FT)........NORTH WINDS 6-12 MPH. OCCASIONAL GUST TO  
20 MPH.  
RIDGETOP WIND.......NORTHWEST 9-14 MPH.  
MIXING HEIGHT.......5000 FT AGL.  
TRANSPORT WINDS.....NORTHWEST AROUND 17 MPH.  
HAINES INDEX........2 (VERY LOW).  
 

 
 
FORECASTER...WISTER  
REQUESTED BY...SAM PEARCY  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1906549.1/PDT  
.DELDT 04/19/19  
.FORMATTERVERSION 1.0.26  
.EMAIL SPEARCY@FS.FED.US  
 
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