818  
FNUS75 KSLC 130336  
FWSSLC  
 
SPOT FORECAST FOR UPPER PROVO  
NATIONAL WEATHER SERVICE SALT LAKE CITY UT  
936 PM MDT WED AUG 12 2020  
   
..RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT THURSDAY
 
 
   
DISCUSSION
 
LITTLE CHANGE IN THE OVERALL WEATHER PATTERN THROUGH THE  
END WEEK WITH HIGH PRESSURE ALOFT CENTERED OVER THE SOUTHERN ROCKIES  
AND A GENERAL WESTERLY FLOW ALOFT ACROSS NORTHERN UTAH. TEMPERATURES  
WILL REMAIN SEASONALLY WARM WITH LOW DAYTIME HUMIDITY AND ONLY FAIR  
RECOVERIES AT NIGHT. SOME LATE MORNING THROUGH EARLY EVENING CUMULUS  
ARE EXPECTED BOTH THURSDAY AND FRIDAY. ANY PRECIPITATION OUT OF THIS  
CUMULUS DEVELOPMENT WILL LIKELY REMAIN NORTH AND NORTHEAST OF THE FIRE  
SITE BOTH DAYS.  
   
THURSDAY
 
 
SKY/WEATHER.........SUNNY (0-5 PERCENT CLOUD COVER) UNTIL 1100, THEN  
PARTLY CLOUDY (20-30 PERCENT CLOUD COVER).  
CHANCE OF PCPN......5 PERCENT.  
CWR.................0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....69-71.  
MIN HUMIDITY........13-15%.  
WIND (20 FT)........NORTH WINDS 1-3 MPH UNTIL 1000, THEN WEST 5-8 MPH  
WITH GUSTS TO 13 MPH IN THE LATE MORNING AND AFTERNOON.  
HAINES INDEX........6 ..HIGH.  
   
THURSDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT CLOUD COVER) UNTIL  
2000, THEN CLEAR (5-10 PERCENT CLOUD COVER).  
CHANCE OF PCPN......5 PERCENT.  
CWR.................0 PERCENT.  
LAL.................1.  
MIN TEMPERATURE.....48-50.  
MAX HUMIDITY........27-29%.  
WIND (20 FT)........WEST WINDS 6-8 MPH WITH GUSTS TO AROUND 13 MPH  
BECOMING NORTH 1-3 MPH LATE IN THE EVENING.  
HAINES INDEX........5 ..MODERATE.  
   
FRIDAY
 
 
SKY/WEATHER.........SUNNY (0-5 PERCENT CLOUD COVER) IN THE MORNING,  
THEN MOSTLY SUNNY (15-25 PERCENT CLOUD COVER)  
IN TO AFTERNOON.  
CHANCE OF PCPN......5 PERCENT.  
CWR.................0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....71-74  
MIN HUMIDITY........10-12%.  
WIND (20 FT)........NORTHWEST WINDS 2-4 MPH, INCREASING TO 7-9 MPH WITH  
GUSTS TO 14 MPH LATE MORNING THROUGH THE AFTERNOON.  
HAINES INDEX........6 ..HIGH.  
 

 
FORECASTER...CONGER  
REQUESTED BY...IC  
TYPE OF REQUEST...WILDFIRE  
.TAG 2010829.0/SLC  
.DELDT 08/12/20  
.FORMATTERVERSION 1.0.26  
.EMAIL DAVID.INSKEEP@USDA.GOV  
 
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