238  
FNUS76 KPQR 222106  
FWSPQR  
 
SPOT FORECAST FOR SPIRIT LAKE TUNNEL PROJECT...US FOREST SERVICE  
NATIONAL WEATHER SERVICE PORTLAND OR  
206 PM PDT SUN SEP 22 2019  
 
FORECAST IS BASED ON FORECAST START TIME OF 1500 PDT ON SEPTEMBER 23.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE PORTLAND, OREGON OFFICE.  
   
DISCUSSION
 
MONDAY WILL START OUT FAIRLY CLEAR BUT AN APPROACHING  
FRONT WILL BRING LOWER CEILINGS BY EARLY EVENING. THE FRONT MOVES  
ACROSS MONDAY NIGHT WITH ASSOCIATED IMPACTS WILL BEGINNING TO  
DISSIPATE BY MID-MORNING. TUESDAY AFTERNOON APPEARS TO BRING  
FAVORABLE FIGHT CONDITIONS, ALTHOUGH SCATTERED CLOUDS MAY HUG  
JUST ABOVE THE RIDGES.  
   
MONDAY
 
 
SKY/WEATHER.........INCREASING CLOUDS BECOMING MOSTLY CLOUDY IN THE  
AFTERNOON.  
CHANCE OF PCPN......10 PERCENT.  
MAX TEMPERATURE.....56.  
MIN HUMIDITY........67 PERCENT.  
SURFACE WINDS.......VARIABLE 0 TO 3 MPH.  
10000 FT MSL WINDS..NORTHWEST AROUND 25 MPH INCREASING TO AROUND 40  
MPH IN THE AFTERNOON.  
RAINFALL AMOUNT.....0.00 INCHES.  
CEILING (AGL).......LOWERING TO 7000 FEET IN THE AFTERNOON.  
VISIBILITY..........10+ MILES.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........CLOUDY. RAIN LIKELY.  
CHANCE OF PCPN......70 PERCENT.  
MIN TEMPERATURE.....46.  
MAX HUMIDITY........100 PERCENT.  
SURFACE WINDS.......VARIABLE 0 TO 3 MPH BECOMING SOUTHWEST 5 TO 8  
MPH IN THE EVENING.  
10000 FT MSL WINDS..NORTHWEST AROUND 40 MPH.  
RAINFALL AMOUNT.....0.15 INCHES.  
CEILING (AGL).......7000 FEET LOWERING TO 5000 FEET IN THE EARLY  
EVENING, THEN TO LESS THAN 1000 FT AFTER  
MIDNIGHT.  
VISIBILITY..........10 MILES LOWERING TO 1 MILE AROUND MIDNIGHT.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. RAIN LIKELY IN THE MORNING, THEN  
A SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON.  
CHANCE OF PCPN......60 PERCENT.  
MAX TEMPERATURE.....58.  
MIN HUMIDITY........72 PERCENT.  
SURFACE WINDS.......SOUTHWEST 5 TO 9 MPH.  
10000 FT MSL WINDS..NORTHWEST AROUND 43 MPH.  
RAINFALL AMOUNT.....0.07 INCHES.  
CEILING (AGL).......1000 FEET INCREASING TO 2500 FEET BY LATE  
MORNING, THEN INCREASING TO ABOVE 8000 FEET IN  
THE AFTERNOON.  
VISIBILITY..........1 MILE INCREASING TO 10 MILES BY LATE MORNING.  
 

 
FORECASTER...JBONK  
REQUESTED BY...BRANDON POE  
TYPE OF REQUEST...OTHER  
.TAG 1915815.1/PQR  
.DELDT 09/22/19  
.FORMATTERVERSION 1.0.26  
.EMAIL CHRIS.STREBIG@USDA.GOV,MICHELLE.D.KING@USDA.GOV,WACCC@USDA.GOV  
 
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