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FNUS63 KFSD 130917

RFDFSD



Rangeland Fire Danger Statement

National Weather Service Sioux Falls SD

417 AM CDT Tue May 13 2025



.DISCUSSION...

Issued at 405 AM CDT Tue May 13 2025



Hot, very dry, and breezy conditions will again result in critical 

to near-critcal fire weather conditions across the area today. With 

temperatures in the upper 80s to lower 90s and afternoon dew points 

in the 40s, RH values will drop to as low as 20 to 25 percent over a 

good portion for the area. Because of this, a Red Flag Warning has 

been issued for southeast South Dakota, southwest Minnesota, and 

parts of northwest Iowa.



While temperatures and wind gusts will be similar on Wednesday, an 

increase in low level moisture will result in dew points into the 

50s. This will yield afternoon RH values ranging from around 25 

percent to 40 percent. As a result, the fire danger while still 

elevated will be lesser than recent days. Thunderstorms are expected 

to develop over central South Dakota by late afternoon, pushing 

eastward across the area into Thursday. This will usher in much 

cooler temperatures for the end of the week.



People are urged to exercise extreme care with respect to outdoor

activities that could cause grass fires. Avoid equipment that can

cause sparks near dry grass or brush. Do not toss cigarettes on 

the ground. Report new fires quickly to the nearest fire 

department or law enforcement office.



IAZ001-MNZ071-072-080-089-097-098-SDZ038>040-052>067-069-131230-

Lyon-Lincoln-Murray-Nobles-Pipestone-Rock-Beadle-Kingsbury-

Brookings-Jerauld-Sanborn-Miner-Lake-Moody-Brule-Aurora-Davison-

Hanson-McCook-Minnehaha-Charles Mix-Douglas-Hutchinson-Turner-

Yankton-



...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 WEDNESDAY 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.





$$



IAZ002-003-012-013-020-MNZ081-090-NEZ013-014-SDZ050-068-070-071-

131230-

Osceola-Dickinson-Sioux-O'Brien-Plymouth-Cottonwood-Jackson-Dixon-

Dakota-Gregory-Bon Homme-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 WEDNESDAY 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.





$$



IAZ014-021-022-031-032-131230-

Clay-Cherokee-Buena Vista-Woodbury-Ida-



...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 WEDNESDAY 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.





$$