226  
FNUS76 KPDT 282318  
FWSPDT  
 
SPOT FORECAST FOR ROWENA...WA-CCC  
NATIONAL WEATHER SERVICE PENDLETON OR  
418 PM PDT SUN JUN 28 2020  
 
FORECAST IS BASED ON FORECAST START TIME OF 1600 PDT ON JUNE 28.  
***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 LARGE UPPER LOW PRESSURE SYSTEM OVER THE REGION  
WILL CAUSE WRAP AROUND SHOWERS AND POSSIBLY A THUNDERSTORM THIS  
EVENING. SHOWERS WILL DECREASE AFTER SUNSET AND AS THE UPPER LOW  
SHIFTS TO THE EAST. IT WILL BE WINDY THIS EVENING AS WELL, BUT  
RELATIVE HUMIDITIES WILL BE HIGH FOR THE REST OF THIS AFTERNOON,  
AND THEN HIGH RECOVERY OVERNIGHT. TEMPERATURES WILL BE WARMER ON  
MONDAY AND TUESDAY WITH HUMIDITIES SLIGHTLY LOWER. IT WILL BECOME  
BREEZY TO WINDY AGAIN IN THE AFTERNOONS ON BOTH MONDAY AND TUESDAY.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY. A CHANCE OF SHOWERS AND A SLIGHT  
CHANCE OF AN EVENING THUNDERSTORM.  
CWR.................20 PERCENT.  
LAL.................2.  
MIN TEMPERATURE.....58-63.  
MAX HUMIDITY........78-83 PERCENT.  
WIND (20 FT)........MOSTLY NORTHWEST 7-14 MPH THIS EVENING, THEN  
DECREASING OVERNIGHT TO NORTHWEST 3-7 MPH.  
RIDGETOP WIND.......NORTHWEST 20 TO 30 MPH THIS EVENING, DECREASING  
TO NORTH 7-13 MPH.  
MIXING HEIGHT.......AROUND 500 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 20 TO 30 MPH THIS EVENING, DECREASING TO  
NORTH 7-13 MPH.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY. WARMER.  
CWR.................0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....78-83.  
MIN HUMIDITY........43-48 PERCENT.  
WIND (20 FT)........INCREASING TO NORTHWEST 15 TO 25 MPH BY LATE  
MORNING.  
RIDGETOP WIND.......INCREASING TO NORTHWEST 20 TO 30 MPH BY LATE  
MORNING.  
MIXING HEIGHT.......INCREASING TO AROUND 3000 FT AGL.  
TRANSPORT WINDS.....BECOMING NORTHWEST 20 TO 30 MPH BY AFTERNOON.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
CWR.................0 PERCENT.  
LAL.................1.  
MIN TEMPERATURE.....59-64.  
MAX HUMIDITY........78-83 PERCENT.  
WIND (20 FT)........DECREASING TO WEST 10 TO 15 MPH AFTER SUNSET.  
RIDGETOP WIND.......NORTHWEST 20 TO 30 MPH DECREASING TO 8-15 MPH  
OVERNIGHT.  
MIXING HEIGHT.......DECREASING TO AROUND 1000 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 20 TO 30 MPH DECREASING TO 8-15 MPH  
OVERNIGHT.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
CWR.................0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....73-78.  
MIN HUMIDITY........45-50 PERCENT.  
WIND (20 FT)........INCREASING TO NORTHWEST 15 TO 25 MPH BY AFTERNOON.  
RIDGETOP WIND.......INCREASING TO NORTHWEST 20 TO 30 MPH BY AFTERNOON.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 

 
 
FORECASTER...CLOUTIER  
REQUESTED BY...IA:SCOTT  
TYPE OF REQUEST...WILDFIRE  
.TAG 2008665.0/PDT  
.DELDT 06/28/20  
.FORMATTERVERSION 1.0.26  
.EMAIL WACCC@FIRENET.GOV  
 
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