971  
FNUS63 KFSD 010903  
RFDFSD  
 
RANGELAND FIRE DANGER STATEMENT  
NATIONAL WEATHER SERVICE SIOUX FALLS SD  
303 AM CST FRI MAR 1 2024  
   
DISCUSSION
 
 
ISSUED AT 238 AM CST FRI MAR 1 2024  
 
ELEVATED FIRE WEATHER CONDITIONS ARE EXPECTED OVER MUCH OF THE  
AREA TODAY. THE AREA WITH THE HIGHEST POTENTIAL OF REACHING NEAR  
CRITICAL FIRE WEATHER VALUES REMAINS WEST OF THE JAMES RIVER,  
AND MORE SPECIFICALLY INTO SOUTH CENTRAL SD. DEEPER MIXING  
SHOULD PROMOTE A HEALTHY DROP IN DEW POINTS, AND WITH HIGH  
TEMPERATURES IN THE 70, RH VALUES FALL BELOW 20% IN MANY AREAS.  
THE ONLY THING PREVENTING CRITICAL CONDITIONS (OR RED FLAG  
WARNINGS) ARE THE LIGHTER WINDS THAT MAY DEVELOP IN THE  
AFTERNOON AS A WEAK SURFACE TROUGH APPROACHES AND THE SURFACE  
PRESSURE GRADIENT WEAKENS. THE EXPERIMENTAL HOURLY WILDFIRE  
POTENTIAL GUIDANCE WHICH FACTORS IN SOIL MOISTURE, WINDS, GUSTS  
WOULD SUGGEST THE GREATEST POTENTIAL FOR DEVELOPMENT (>50%) WOULD  
BE IN BRULE, CHARLES MIX, AND GREGORY COUNTIES. FURTHER EAST,  
SLIGHTLY COOLER TEMPERATURES AND A MODEST INCREASE IN DEW POINTS  
RESULTS IN HIGHER HUMIDITY VALUES, BUT STRONGER SUSTAINED WINDS  
ARE ALSO LIKELY.  
 
A BROAD INCREASE IN SURFACE DEW POINTS AND LIGHTER WINDS WILL LEAD  
TO FAIRLY WIDESPREAD ELEVATED, BUT BELOW CRITICAL, FIRE WEATHER  
CONDITIONS ON SATURDAY.  
 
CONDITIONS ARE A BIT MORE UNCERTAIN FOR SUNDAY WITH THE PASSAGE OF  
THE SURFACE FRONT. SHOULD DEW POINTS MIX DOWN FASTER AHEAD OF THE  
BOUNDARY, THEN CRITICAL FIRE WEATHER CONDITIONS COULD DEVELOP IN  
NORTHWEST IOWA. ELEVATED CONDITIONS ARE EXPECTED IN ALL OTHER AREAS  
AFTER THE FRONT PASSAGE.  
 
DEBRIS BURNING IS THE NUMBER ONE CAUSE OF WILDFIRES...SO PLEASE  
BE CAREFUL WITH ANY USE OF FIRE.  
 
IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097-  
098-NEZ013-014-SDZ040-050-052>071-011215-  
LYON-OSCEOLA-DICKINSON-SIOUX-O'BRIEN-CLAY-PLYMOUTH-CHEROKEE-  
BUENA VISTA-WOODBURY-IDA-LINCOLN-MURRAY-COTTONWOOD-NOBLES-JACKSON-  
PIPESTONE-ROCK-DIXON-DAKOTA-BROOKINGS-GREGORY-JERAULD-SANBORN-  
MINER-LAKE-MOODY-BRULE-AURORA-DAVISON-HANSON-MCCOOK-MINNEHAHA-  
CHARLES MIX-DOUGLAS-HUTCHINSON-TURNER-BON HOMME-YANKTON-UNION-  
   
..VERY HIGH FIRE DANGER
 
 
THE GRASSLAND FIRE DANGER INDEX WILL REACH THE VERY HIGH  
CATEGORY THIS AFTERNOON. VERY POOR WEATHER CONDITIONS AND  
VERY LOW MOISTURE CONTENT OF GRASSES, AND OTHER DRY  
ORGANIC MATERIAL ON THE GROUND, INDICATE THAT DANGEROUS  
BURNING CONDITIONS EXIST. FIRES WILL SPREAD RAPIDLY AND  
SHOW ERRATIC BEHAVIOR. OUTDOOR BURNING IS NOT RECOMMENDED.  
 
OUTLOOK FOR SATURDAY AFTERNOON...THE GRASSLAND FIRE DANGER INDEX  
WILL REACH THE VERY 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.  
 

 
 
SDZ038-039-011215-  
BEADLE-KINGSBURY-  
   
..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 SATURDAY 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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