406  
FNUS63 KFSD 170840  
RFDFSD  
 
RANGELAND FIRE DANGER STATEMENT  
NATIONAL WEATHER SERVICE SIOUX FALLS SD  
340 AM CDT SAT APR 17 2021  
   
DISCUSSION
 
 
CLOUDS AND PATCHY DRIZZLE WILL PERSIST THROUGH THE MORNING,  
GRADUALLY SHIFTING SOUTH OF INTERSTATE 90 THIS AFTERNOON. A LIGHT  
TO BREEZY NORTHWESTERLY WIND WILL HELP TO QUICKLY DRY UP ANY  
SLIGHTLY WET FUELS THIS MORNING.  
 
SUNDAY WILL FEATURE MUCH WARMER TEMPERATURES AND DEEPER MIXING  
AHEAD OF A COLD FRONT THAT WILL MOVE FROM NORTH TO SOUTH LATE IN  
THE DAY. AHEAD OF THIS FRONT, TEMPERATURES WARM INTO THE 60S,  
RELATIVE HUMIDITIES FALL INTO THE MIDDLE 20 PERCENT RANGE, AND  
WESTERLY WINDS MAY GUST OVER 20 MPH AT TIMES. THE FIRE DANGER RISK  
WILL BE SLIGHTLY ELEVATED.  
 
THE AFOREMENTIONED COLD FRONT MOVES THROUGH SUNDAY NIGHT BRINGING  
A RISK FOR A LIGHT ACCUMULATION OF SNOW INTO MONDAY. WELL BELOW  
NORMAL TEMPERATURES ARE EXPECTED MONDAY AND TUESDAY.  
 
IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097-  
098-NEZ013-014-SDZ038>040-050-052>071-172345-  
LYON-OSCEOLA-DICKINSON-SIOUX-O'BRIEN-CLAY-PLYMOUTH-CHEROKEE-  
BUENA VISTA-WOODBURY-IDA-LINCOLN-MURRAY-COTTONWOOD-NOBLES-JACKSON-  
PIPESTONE-ROCK-DIXON-DAKOTA-BEADLE-KINGSBURY-BROOKINGS-GREGORY-  
JERAULD-SANBORN-MINER-LAKE-MOODY-BRULE-AURORA-DAVISON-HANSON-  
MCCOOK-MINNEHAHA-CHARLES MIX-DOUGLAS-HUTCHINSON-TURNER-BON HOMME-  
YANKTON-UNION-  
   
..MODERATE FIRE DANGER
 
 
THE GRASSLAND FIRE DANGER INDEX WILL REACH THE MODERATE  
CATEGORY THIS AFTERNOON. MARGINAL WEATHER CONDITIONS OR A  
MODERATE MOISTURE CONTENT OF GRASSES AND OTHER DRY ORGANIC  
MATERIAL ON THE GROUND...INDICATE THAT THERE IS SOME POTENTIAL  
FOR A FIRE OCCURRENCE. DO NOT LEAVE OUTDOOR FIRES UNATTENDED  
UNDER THESE CONDITIONS.  
 
OUTLOOK FOR SUNDAY AFTERNOON...THE GRASSLAND FIRE DANGER INDEX  
WILL REACH THE HIGH CATEGORY.  
 
THE GRASSLAND FIRE DANGER PRODUCT REFLECTS FIRE DANGER FOR NATIVE  
GRASSES. IT IS NOT INTENDED FOR CURED AGRICULTURAL CROPS, NOR  
WILL IT REFLECT CONDITIONS IN ROAD DITCHES WHICH HAVE BEEN MOWED.  
 

 
 
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