Rangeland Fire Danger Forecast
Issued by NWS Sioux Falls, SD
Issued by NWS Sioux Falls, SD
747 FNUS63 KFSD 120900 RFDFSD Rangeland Fire Danger Statement National Weather Service Sioux Falls SD 400 AM CDT Mon May 12 2025 .DISCUSSION... Issued at 334 AM CDT Mon May 12 2025 Hot, dry, and breezy conditions will continue across the area for today - resulting in critical to near-critical fire danger. Afternoon highs will be in the upper 80s to lower 90s, with dewpoints just either side of 40, yielding RH values of 15 to 20 percent. Although winds may be slightly lower than yesterday, these conditions will result in a very high fire danger for much of the area and the current Red Flag Warning for southeast South Dakota, southwest Minnesota, and parts of northwest Iowa remains valid. Tuesday will see similar temperatures, though winds are expected to be slightly less still. With a slight increase in low level moisture, dew points will be higher, and afternoon RH will run closer to 20 to 30 percent - bringing an elevated to near-critical fire danger to most of the area. Low level moisture will continue to increase on Wednesday, thus mitigating the fire danger somewhat. By Wednesday evening, showers and thunderstorms are expected to develop across the area, followed by cooling for the remainder of the week. Of note with regard to the above, the fire danger through the period will vary greatly over a small distances - dependent on the greenness of local vegetation. 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. MNZ071-072-080-097-SDZ038>040-050-052>062-064>067-069-070-121200- Lincoln-Lyon-Murray-Pipestone-Beadle-Kingsbury-Brookings-Gregory- Jerauld-Sanborn-Miner-Lake-Moody-Brule-Aurora-Davison-Hanson- McCook-Minnehaha-Douglas-Hutchinson-Turner-Yankton-Clay- ...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 TUESDAY 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. $$ IAZ001>003-012-013-020-MNZ081-089-090-098-NEZ013-014-SDZ063-068- 071-121200- Lyon-Osceola-Dickinson-Sioux-O`Brien-Plymouth-Cottonwood-Nobles- Jackson-Rock-Dixon-Dakota-Charles Mix-Bon Homme-Union- ...HIGH FIRE DANGER... The Grassland Fire Danger Index will reach the high category this afternoon. Unfavorable weather conditions and low moisture content of grasses, and other dry organic material on the ground, indicate that there is a high potential for a fire to spread.. Outdoor burning should be restricted to early morning or evening hours, when wind speeds are usually lower and the relative humidity is higher. OUTLOOK FOR TUESDAY AFTERNOON...The Grassland Fire Danger Index will reach the high category. The grassland fire danger product reflects fire danger for native grasses. It is not intended for cured agricultural crops, nor will it reflect conditions in road ditches which have been mowed. $$ IAZ014-021-022-031-032-121200- 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 TUESDAY 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. $$