790  
FNUS75 KSLC 281951  
FWSSLC  
 
SPOT FORECAST FOR FISH SPRINGS NWR RX HARRISON UNIT...USWFS  
NATIONAL WEATHER SERVICE SALT LAKE CITY UT  
151 PM MDT MON SEP 28 2026  
 
FORECAST IS BASED ON IGNITION TIME OF 0800 MDT ON SEPTEMBER 29.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
A COOL NORTHERLY FLOW WILL SPREAD OVER THE AREA  
TUESDAY IN THE WAKE OF A DEPARTING STORM SYSTEM, AS HIGH PRESSURE  
BEGINS TO BUILD INTO THE REGION. GUSTY NORTH-NORTHWEST WINDS WILL  
PERSIST THROUGHOUT THE DAY, AND HELP TO BOOST THE CLEARING INDEX  
WELL ABOVE 500. LINGERING MOISTURE ASSOCIATED WITH THE DEPARTING  
STORM SYSTEM MAY ALLOW FOR A COUPLE OF SHOWERS AROUND THE AREA,  
BUT THE CHANCE OF PRECIPITATION ON THE BURN UNITS TUESDAY IS ONLY  
10%. AS THIS HIGH CONTINUES TO BUILD INTO THE AREA WEDNESDAY  
TEMPERATURES WILL TREND SLIGHTLY HIGHER AND RH A LITTLE LOWER.  
WINDS ON WEDNESDAY WILL TREND A BIT WEAKER, BUT REMAIN SUFFICIENT  
TO KEEP THE CLEARING INDEX ABOVE 500.  
   
TUESDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT CLOUD COVER) THEN  
BECOMING MOSTLY SUNNY (15-25 PERCENT CLOUD  
COVER).  
CWR.................0 PERCENT.  
CHANCE OF PCPN......10 PERCENT.  
CHANCE OF LIGHTNING.1 PERCENT.  
MAX TEMPERATURE.....72-76.  
MIN HUMIDITY........22-26 PERCENT.  
WIND (20 FT)........NORTH-NORTHWEST 8-14 MPH WITH GUSTS 20-25 MPH  
INCREASING TO 12-16 MPH WITH GUSTS AROUND 30  
MPH DURING THE AFTERNOON.  
MIXING HEIGHT.......5600 FT AGL (20-30TH PERCENTILE).  
TRANSPORT WINDS.....NORTH 20-25 MPH.  
CLEARING INDEX......1000+.  
   
WEDNESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT CLOUD COVER).  
CWR.................0 PERCENT.  
CHANCE OF PCPN......0 PERCENT.  
CHANCE OF LIGHTNING.0 PERCENT.  
MAX TEMPERATURE.....75-79.  
MIN HUMIDITY........20-24 PERCENT.  
WIND (20 FT)........NORTH 7-12 MPH WITH GUSTS AROUND 20 MPH.  
MIXING HEIGHT.......4500 FT AGL (20-30TH PERCENTILE).  
TRANSPORT WINDS.....NORTH 10 TO 15 MPH.  
CLEARING INDEX......680.  
 

 
FORECASTER...SEAMAN  
REQUESTED BY...ANDY BUYERS  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2622677.0/SLC  
.DELDT 09/28/26  
.FORMATTERVERSION 2.0.0  
.EMAIL ANDREW_BUYERS@FWS.GOV  
 
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