272  
FNUS75 KSLC 240139  
FWSSLC  
 
SPOT FORECAST FOR ETHER HOLLOW  
NATIONAL WEATHER SERVICE SALT LAKE CITY UT  
739 PM MDT WED SEP 23 2020  
 
...RED FLAG WARNING IN EFFECT FROM NOON UNTIL 9 PM FRIDAY  
FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY...  
   
DISCUSSION
 
HIGH PRESSURE ALOFT CENTERED OVER THE AREA WILL  
GIVE WAY TO SOUTHWESTERLY FLOW THURSDAY. AS THIS FLOW MIXES  
DOWN DURING THE AFTERNOON TERRAIN DRIVEN WINDS WILL GIVE WAY  
TO GUSTY SOUTHWEST WINDS BY MID AFTERNOON, WHICH COUPLED WITH  
VERY LOW HUMIDITY WILL RESULT IN CRITICAL FIRE WEATHER CONDITIONS  
THURSDAY AFTERNOON THROUGH EARLY EVENING. A WEAK, DRY FRONTAL  
BOUNDARY WILL PUSH THROUGH THE AREA THURSDAY NIGHT, WHICH WILL  
RESULT IN SLIGHTLY COOLER TEMPERATURES ALONG WITH SLIGHTLY HIGHER  
RH VALUES FRIDAY. WINDS FRIDAY SHOULD REMAIN LIGHTER AND FROM  
THE WEST DURING THE LATE MORNING AND AFTERNOON.  
   
REST OF TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT CLOUD COVER). HAZE.  
CHANCE OF PCPN......0 PERCENT.  
CWR.................0 PERCENT.  
LAL.................1.  
MIN TEMPERATURE.....AROUND 60.  
MAX HUMIDITY........28-30%.  
WIND (20 FT)........EAST 4-9 MPH.  
HAINES INDEX........5 ..MODERATE.  
   
THURSDAY
 
 
SKY/WEATHER.........SUNNY (0-10 PERCENT CLOUD COVER). HAZE.  
CHANCE OF PCPN......0 PERCENT.  
CWR.................0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....AROUND 90.  
MIN HUMIDITY........10-12%.  
WIND (20 FT)........EAST 3-7 MPH EARLY BECOMING WEST 4-8 MPH AFTER  
1000, THEN SOUTHWEST SOUTHWEST 12-18 MPH WITH  
GUSTS AROUND 25 MPH AFTER 1400.  
IN THE AFTERNOON.  
HAINES INDEX........5 ..MODERATE.  
   
THURSDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR (0-10 PERCENT CLOUD COVER).  
CHANCE OF PCPN......0 PERCENT.  
CWR.................0 PERCENT.  
LAL.................1.  
MIN TEMPERATURE.....AROUND 60.  
MAX HUMIDITY........33-35%.  
WIND (20 FT)........SOUTHWEST 10-15 MPH WITH GUSTS TO 25 MPH EARLY  
BECOMING EAST 4-9 MPH AFTER 2000.  
HAINES INDEX........5 ..MODERATE.  
   
FRIDAY
 
 
SKY/WEATHER.........SUNNY (10-20 PERCENT CLOUD COVER).  
CHANCE OF PCPN......0 PERCENT.  
CWR.................0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....84-86.  
MIN HUMIDITY........13-15%.  
WIND (20 FT)........SOUTHEAST WINDS 6-9 MPH BECOMING WEST 8-14 MPH  
WITH GUSTS TO 20 MPH IN THE AFTERNOON.  
HAINES INDEX........4 ..LOW.  
 

 
FORECASTER...SEAMAN  
REQUESTED BY...INCIDENT COMMANDER  
TYPE OF REQUEST...WILDFIRE  
.TAG 2012934.0/SLC  
.DELDT 09/23/20  
.FORMATTERVERSION 1.0.26  
.EMAIL KEVINFRANK@UTAH.GOV  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab UT Page
The Nexlab ID Page
The Nexlab WY Page Main Text Page