


Rangeland Fire Danger Forecast
Issued by NWS Sioux Falls, SD
Issued by NWS Sioux Falls, SD
825 FNUS63 KFSD 040830 RFDFSD Rangeland Fire Danger Statement National Weather Service Sioux Falls SD 330 AM CDT Sat Oct 4 2025 .DISCUSSION... Hot, dry and windy conditions will lead to widespread High to Very High Grassland Fire Danger today. Afternoon humidity levels are expected to remain just above critical values (minimum afternoon humidity 23-35%, with driest conditions in south central South Dakota). However, south winds gusting as high as 35 to 45 MPH will overcome the marginal humidity levels, especially where grasses are more cured or crops are ready for harvest. With this in mind, farmers and others working outdoors should be mindful of their equipment usage to avoid sparking a fire in the dry fuels. Locations along and east of I-29 will remain breezy and warm ahead of a cold front on Sunday, with southwest to west winds gusting 25 to 30 MPH and humidity levels falling to 30-40%. This will keep the Grassland Fire Danger in the High category in many areas, so continued caution is advised. After the cold front passes, much of next week will provide dry conditions with cooler temperatures and lighter winds allowing for less dangerous harvesting conditions. People are urged to exercise extreme care with respect to outdoor activities that could cause grass fires. Avoid equipment that can cause sparks in dry grass or crops. Do not toss cigarettes on the ground. Report new fires quickly to the nearest fire department or law enforcement office. IAZ001>003-012>014-022-SDZ056-062-066-067-070-071-041130- Lyon-Osceola-Dickinson-Sioux-O`Brien-Clay-Buena Vista-Moody- Minnehaha-Turner-Lincoln-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 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. $$ SDZ050-055-057>061-063>065-068-069-041130- Gregory-Lake-Brule-Aurora-Davison-Hanson-McCook-Charles Mix- Douglas-Hutchinson-Bon Homme-Yankton- ...VERY HIGH FIRE DANGER... The Grassland Fire Danger Index will reach the very high category this afternoon. Very poor weather conditions and very low moisture content of grasses, and other dry organic material on the ground, indicate that dangerous burning conditions exist. Fires will spread rapidly and show erratic behavior. Outdoor burning is not recommended. OUTLOOK FOR SUNDAY AFTERNOON...The Grassland Fire Danger Index will reach the moderate to high category. The grassland fire danger product reflects fire danger for native grasses. It is not intended for cured agricultural crops, nor will it reflect conditions in road ditches which have been mowed. $$ IAZ020-021-031-032-MNZ071-072-080-081-089-090-097-098-NEZ013-014- SDZ038>040-052>054-041130- Plymouth-Cherokee-Woodbury-Ida-Lincoln-Lyon-Murray-Cottonwood- Nobles-Jackson-Pipestone-Rock-Dixon-Dakota-Beadle-Kingsbury- Brookings-Jerauld-Sanborn-Miner- ...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 SUNDAY 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. $$