859  
FNUS76 KPQR 182340  
FWSPQR  
 
SPOT FORECAST FOR COLLAWASH...FOREST SERVICE  
NATIONAL WEATHER SERVICE PORTLAND OR  
440 PM PDT WED JUL 18 2018  
 
FORECAST IS BASED ON FORECAST START TIME OF 1700 PDT ON JULY 18.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE PORTLAND, OREGON OFFICE.  
 
   
DISCUSSION
 
A NORTHWESTERLY ONSHORE PATTERN AND A WEAK STORM  
SYSTEM PASSING BY TO OUR NORTH THIS WEEK WILL RESULT IN NEAR AVERAGE  
TEMPERATURES AND RELATIVE HUMIDITIES. WINDS WILL REMAIN PRIMARILY  
TERRAIN DRIVEN EACH DAY WITH A NOTICEABLE UPTICK IN NORTHERLY WINDS  
EACH AFTERNOON AND EARLY EVENING.  
 
   
TONIGHT
 
 
SKY/WEATHER.........CLEAR.  
CWR.................0 PERCENT.  
LAL.................1.  
MIN TEMPERATURE.....52-54.  
MAX HUMIDITY........85-90 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......NORTH 3 TO 5 MPH IN THE EVENING BECOMING  
DRAINAGE LESS THAN 3 MPH AFTER 2100.  
RIDGETOP...........NORTH 4 TO 6 MPH IN THE EVENING BECOMING  
DRAINAGE LESS THAN 3 MPH AFTER 2100.  
HAINES INDEX(HIGH)..5 (MODERATE).  
RAINFALL AMOUNT.....0.00 INCHES.  
 
   
THURSDAY
 
 
SKY/WEATHER.........A FEW MORNING CLOUDS. OTHERWISE, SUNNY.  
CWR.................0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....78-80.  
MIN HUMIDITY........35-40 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......BECOMING UPSLOPE 2 TO 4 MPH AFTER 0900  
BEFORE BECOMING NORTH 8 TO 10 MPH WITH  
GUSTS TO 20 MPH AFTER 1300.  
RIDGETOP...........BECOMING UPSLOPE 3 TO 5 MPH AFTER 0900  
BEFORE BECOMING NORTH 9 TO 11 MPH WITH  
GUSTS TO 20 MPH AFTER 1300.  
HAINES INDEX(HIGH)..5 (MODERATE).  
RAINFALL AMOUNT.....0.00 INCHES.  
 
   
THURSDAY NIGHT
 
 
SKY/WEATHER.........CLEAR.  
CWR.................0 PERCENT.  
LAL.................1.  
MIN TEMPERATURE.....48-50.  
MAX HUMIDITY........85-90 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......NORTH 5 TO 7 MPH WITH GUSTS TO 14 MPH IN THE  
EVENING BECOMING DRAINAGE LESS THAN 3 MPH  
AFTER 2100.  
RIDGETOP...........NORTH 6 TO 8 MPH WITH GUSTS TO 16 MPH IN THE  
EVENING BECOMING DRAINAGE LESS THAN 3 MPH  
AFTER 2100.  
HAINES INDEX(HIGH)..5 (MODERATE).  
RAINFALL AMOUNT.....0.00 INCHES.  
 

 
 
FORECASTER...NEUMAN  
REQUESTED BY...MIKAELA HAGLUND  
TYPE OF REQUEST...WILDFIRE  
.TAG 1812874.3/PQR  
.DELDT 07/18/18  
.EMAIL JLGOERS@FS.FED.US,TMMERRITT@FS.FED.US,CJHARPER@FS.FED.US,WACCC@FIRENET.GOV  
 
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