667  
FNUS63 KFSD 140945  
RFDFSD  
 
RANGELAND FIRE DANGER STATEMENT  
NATIONAL WEATHER SERVICE SIOUX FALLS SD  
445 AM CDT WED MAY 14 2025  
   
DISCUSSION  
 
ANOTHER WARM DAY IS AHEAD AS TEMPERATURES TOP OUT IN THE UPPER 80S  
TO LOW 90S FOR THE DAY. AS MIXING INCREASES ALONG WITH OUR  
TEMPERATURES, EXPECT RH VALUES TO FALL IN BETWEEN 25-30 PERCENT  
THIS AFTERNOON AS BREEZIER SOUTHERLY TO SOUTHEASTERLY WINDS ARE  
TRANSPORTED TO THE SURFACE. WHILE SOME LOCALLY ELEVATED CONCERNS  
WILL BE POSSIBLE THIS AFTERNOON, FUELS ARE GREEN ENOUGH TO KEEP  
ANY SIGNIFICANT CONCERNS AT BAY. NONETHELESS, RAIN CHANCES RETURN  
THIS EVENING AND WILL INTERMITTENTLY PERSIST ACROSS PORTIONS OF  
THE AREA THROUGH THURSDAY.  
 
 
IAZ001-012-MNZ080-097-098-NEZ013-014-SDZ038-040-053-055-056-  
058>062-064>067-069>071-141245-  
LYON-SIOUX-MURRAY-PIPESTONE-ROCK-DIXON-DAKOTA-BEADLE-BROOKINGS-  
SANBORN-LAKE-MOODY-AURORA-DAVISON-HANSON-MCCOOK-MINNEHAHA-DOUGLAS-  
HUTCHINSON-TURNER-LINCOLN-YANKTON-CLAY-UNION-  
   
..HIGH FIRE DANGER  
 
THE GRASSLAND FIRE DANGER INDEX WILL REACH THE HIGH CATEGORY  
THIS AFTERNOON. UNFAVORABLE WEATHER CONDITIONS AND LOW  
MOISTURE CONTENT OF GRASSES, AND OTHER DRY ORGANIC MATERIAL  
ON THE GROUND, INDICATE THAT THERE IS A HIGH POTENTIAL FOR  
A FIRE TO SPREAD.. 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 THURSDAY 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.  
 
 
 
IAZ002-003-013-014-020>022-031-032-MNZ071-072-081-089-090-SDZ039-  
050-052-054-057-063-068-141245-  
OSCEOLA-DICKINSON-O'BRIEN-CLAY-PLYMOUTH-CHEROKEE-BUENA VISTA-  
WOODBURY-IDA-LINCOLN-LYON-COTTONWOOD-NOBLES-JACKSON-KINGSBURY-  
GREGORY-JERAULD-MINER-BRULE-CHARLES MIX-BON HOMME-  
   
..MODERATE FIRE DANGER  
 
THE GRASSLAND FIRE DANGER INDEX WILL REACH THE MODERATE  
CATEGORY THIS AFTERNOON. MARGINAL WEATHER CONDITIONS OR  
LOWERING MOISTURE CONTENT OF GRASSES, AND OTHER DRY ORGANIC  
MATERIAL ON THE GROUND, INDICATE THAT THERE IS SOME POTENTIAL  
FOR A FIRE TO SPREAD. ANY OUTDOOR BURNING SHOULD BE CLOSELY  
MONITORED.  
 
OUTLOOK FOR THURSDAY 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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