239  
FNUS76 KPDT 221443  
FWSPDT  
 
SPOT FORECAST FOR STARR30...USFS  
NATIONAL WEATHER SERVICE PENDLETON OR  
743 AM PDT TUE MAY 22 2018  
 
FORECAST IS BASED ON IGNITION TIME OF 0900 PDT ON MAY 22.  
***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 AIR MASS REMAIN UNSTABLE, AND A LOW PRESSURE  
SYSTEM OVER NEVADA WILL CIRCULATE MOISTURE OVER SOUTHEAST OREGON  
TODAY. THIS WILL RESULT IN SCATTERED SHOWERS AND THUNDERSTORMS  
NEAR THE BURN SITE IN THE AFTERNOON. OTHERWISE, TEMPERATURES WILL  
BE WARMER AND RHS LOWER COMPARED TO YESTERDAY. WINDS WILL BE  
RELATIVELY LIGHT. THE OVERALL WEATHER PATTERN CHANGES LITTLE ON  
WEDNESDAY, AND ADDITIONAL SHOWERS AND POSSIBLE THUNDERSTORMS ARE  
EXPECTED.  
 
   
REST OF TODAY
 
 
SKY/WEATHER.........SUNNY THEN BECOMING PARTLY CLOUDY. A CHANCE OF  
SHOWERS AND THUNDERSTORMS AFTER 1400.  
CWR.................LESS THAN 10 PERCENT.  
MAX TEMPERATURE.....75.  
MIN HUMIDITY........37 PERCENT.  
WIND (20 FT)........DOWNSLOPE 0-2...BECOMING UPSLOPE WEST-NORTHWEST WIND 3-6 MPH  
AFTER 1000. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS  
IN THE AFTERNOON.  
TRANSPORT WINDS.....NORTH AROUND 8 MPH.  
 
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND A  
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING.  
CWR.................10 PERCENT.  
MIN TEMPERATURE.....46.  
MAX HUMIDITY........93 PERCENT.  
WIND (20 FT)........WEST-NORTHWEST WINDS 4-7 MPH IN THE EVENING BECOMING  
DOWNSLOPE WINDS LESS THAN 5 MPH AFTER 2100. GUSTY AND  
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN  
THE EVENING.  
TRANSPORT WINDS.....NORTH AROUND 5 MPH.  
   
WEDNESDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS IN THE  
MORNING, THEN RAIN SHOWERS LIKELY AND A SLIGHT  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
CWR.................63 PERCENT.  
MAX TEMPERATURE.....72-75.  
MIN HUMIDITY........40-45 PERCENT.  
WIND (20 FT)........BECOMING UPSLOPE 3-6 MPH BY MID-MORNING. GUSTY AND ERRATIC WINDS  
EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON.  
TRANSPORT WINDS.....LIGHT WINDS.  
 

 
 
FORECASTER...WISTER  
REQUESTED BY...KENNETH BOUCHER  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1810474.0/PDT  
.EMAIL KBOUCHER@FS.FED.US  
 
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