345  
FNUS63 KFSD 200754  
RFDFSD  
 
RANGELAND FIRE DANGER STATEMENT  
NATIONAL WEATHER SERVICE SIOUX FALLS SD  
254 AM CDT SUN SEP 20 2020  
   
DISCUSSION
 
 
A BREEZY SOUTHEAST WIND WILL PREVAIL TO START SUNDAY, HOWEVER  
WE'RE EXPECTING SOME DIRECTIONAL TURNING TOWARDS THE SOUTH BY MID-  
DAY. SUSTAINED WINDS WILL AVERAGE 20 TO 25 MPH WITH GUSTS BETWEEN  
35 AND 45 MPH POSSIBLE. RELATIVE HUMIDITY VALUES WILL DROP INTO  
THE LOWER 40 TO UPPER 30 PERCENT RANGE. THIS WILL LEAD TO HIGH FIRE  
DANGER CONCERNS.  
 
WINDS WILL CONTINUE TO STAY BREEZY INTO MONDAY HOWEVER WILL NOT  
BE AS STRONG AS ON SUNDAY. TEMPERATURES DO WARM FURTHER INTO THE  
80S ON MONDAY AND TUESDAY, WITH RELATIVE HUMIDITY VALUES FALLING  
FURTHER INTO THE 30 PERCENT RANGE. WE SHOULD CONTINUE TO SEE  
DRYING OF FUELS THROUGH MUCH OF THE UPCOMING WEEK.  
 
IAZ001-012-013-020-021-031-NEZ013-014-SDZ065>071-202300-  
LYON-SIOUX-O'BRIEN-PLYMOUTH-CHEROKEE-WOODBURY-DIXON-DAKOTA-  
HUTCHINSON-TURNER-LINCOLN-BON HOMME-YANKTON-CLAY-UNION-  
   
..HIGH FIRE DANGER
 
 
THE GRASSLAND FIRE DANGER INDEX WILL REACH THE HIGH CATEGORY  
THIS AFTERNOON. UNFAVORABLE WEATHER CONDITIONS OR A LOW  
MOISTURE CONTENT OF GRASSES AND OTHER DRY ORGANIC MATERIAL  
ON THE GROUND INDICATE THAT THERE IS A MODERATE TO HIGH  
POTENTIAL FOR A FIRE OCCURRENCE. OUTDOOR BURNING SHOULD BE  
RESTRICTED TO EARLY MORNING OR EVENING HOURS WHEN WIND SPEEDS  
ARE USUALLY LOWER AND THE RELATIVE HUMIDITY IS HIGHER.  
 
OUTLOOK FOR MONDAY AFTERNOON...THE GRASSLAND FIRE DANGER INDEX  
WILL REACH THE MODERATE 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.  
 

 
 
IAZ002-003-014-022-032-MNZ089-097-098-SDZ050-052>064-202300-  
OSCEOLA-DICKINSON-CLAY-BUENA VISTA-IDA-NOBLES-PIPESTONE-ROCK-  
GREGORY-JERAULD-SANBORN-MINER-LAKE-MOODY-BRULE-AURORA-DAVISON-  
HANSON-MCCOOK-MINNEHAHA-CHARLES MIX-DOUGLAS-  
   
..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 MONDAY AFTERNOON...THE GRASSLAND FIRE DANGER INDEX  
WILL REACH THE LOW 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.  
 

 
 
MNZ071-072-080-081-090-SDZ038>040-202300-  
LINCOLN-LYON-MURRAY-COTTONWOOD-JACKSON-BEADLE-KINGSBURY-BROOKINGS-  
   
..LOW FIRE DANGER
 
 
THE GRASSLAND FIRE DANGER INDEX WILL REACH THE LOW CATEGORY  
THIS AFTERNOON. FAVORABLE WEATHER CONDITIONS OR A HIGH MOISTURE  
CONTENT OF GRASSES AND OTHER DRY ORGANIC MATERIAL ON THE  
GROUND INDICATE THAT THE PROBABILITY OF A FIRE OCCURRENCE IS LOW.  
OUTDOOR BURNING UNDER THESE CONDITIONS CAN USUALLY BE PERFORMED  
WITH REASONABLE SAFETY PRECAUTIONS.  
 
OUTLOOK FOR MONDAY AFTERNOON...THE GRASSLAND FIRE DANGER INDEX  
WILL REACH THE LOW 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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