355  
FNUS75 KSLC 081416  
FWSSLC  
 
SPOT FORECAST FOR CEDAR CITY PILES DUCK CREEK FUELS DECKS...USFS  
NATIONAL WEATHER SERVICE SALT LAKE CITY UT  
716 AM MST THU DEC 8 2022  
 
FORECAST IS BASED ON IGNITION TIME OF 0800 MST ON DECEMBER 08.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
CLEAR AND DRY CONDITIONS WILL BE IN PLACE TODAY AS  
SHORT WAVE RIDGING BUILDS ACROSS THE REGION. DUE TO THE RIDGE  
MOVING IN MIXING HEIGHTS WILL REMAIN QUITE LOW AND SUB 1500 FT  
ABOVE GROUND LEVEL, AND WINDS WILL REMAIN ON THE LIGHT SIDE.  
THIS IS EXPECTED TO DRIVE MINIMAL VENTILATION POTENTIAL TODAY.  
COME FRIDAY VENTILATION POTENTIAL IS EXPECTED TO INCREASE  
SLIGHTLY AS THE RIDGE WILL BE WEAKENING WHILE MOVING DOWNSTREAM  
IN ADVANCE AND APPROACHING STORM PEGGED TO MOVE IN SATURDAY  
NIGHT OR EARLY SUNDAY.  
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT CLOUD COVER).  
CWR.................0 PERCENT.  
CHANCE OF PCPN......0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....34-36.  
MIN HUMIDITY........54-56 PERCENT.  
WIND (20 FT)........NORTHWEST WINDS 4-6 MPH BECOMING SOUTH 4-7 MPH  
LATE IN THE MORNING.  
CLEARING INDEX......130.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT CLOUD COVER).  
CWR.................0 PERCENT.  
CHANCE OF PCPN......10 PERCENT.  
LAL.................1.  
MIN TEMPERATURE.....13-15.  
MAX HUMIDITY........81-83 PERCENT.  
WIND (20 FT)........SOUTH WINDS 5-10 MPH BECOMING SOUTHWEST 8-10  
MPH EARLY IN THE MORNING.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FRIDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT CLOUD COVER) THEN  
BECOMING MOSTLY SUNNY (0-10 PERCENT CLOUD  
COVER).  
CWR.................0 PERCENT.  
CHANCE OF PCPN......10 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....34-36.  
MIN HUMIDITY........52-54 PERCENT.  
WIND (20 FT)........SOUTHWEST WINDS 6-13 MPH.  
CLEARING INDEX......310.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 

 
FORECASTER...MERRILL  
REQUESTED BY...BODE MECHAM  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2222367.0/SLC  
.DELDT 12/08/22  
.FORMATTERVERSION 2.0.0  
.EMAIL BODE.MECHAM@USDA.GOV  
 
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