Rangeland Fire Danger Forecast
Issued by NWS Sioux Falls, SD
Issued by NWS Sioux Falls, SD
483 FNUS63 KFSD 220843 RFDFSD Rangeland Fire Danger Statement National Weather Service Sioux Falls SD 343 AM CDT Tue Apr 22 2025 .DISCUSSION... Issued at 334 AM CDT Tue Apr 22 2025 High temperatures are expected to warm to the upper 60s and 70s this afternoon. This will result in a well mixed boundary layer that will bring down drier air aloft. This drier air will lower dew points to the upper 20s to low 30s, resulting in critical humidity levels being reached across the entire area. Winds remain the most questionable part today but a look at BUFKIT soundings shows that there is no inversion above the mixed layer. Wind profiles are also unidirectional, further supporting efficient mixing. However, the magnitude of the winds looks to be on the weaker side of things. The strongest winds look to occur along the highway-14 corridor with gusts up to about 25 mph expected. Do not have enough confidence to issue a Red Flag Warning at this time but have issued a Special Weather Statement (SPS) to account for the remaining uncertainty. Trends will be monitored throughout the day today for any potential upgrade to a Red Flag Warning. Wednesday will be another warm days with high temperatures remaining in the 60s and 70s. Dew points however will moisten to the 30s, 40s, and even up to about 50F across parts of northwest Iowa. This will keep humidity levels above critical levels while winds remain on the lighter side of things. Thus, fire danger is not expected. IAZ001>003-012>014-MNZ071-072-080-081-089-090-097-098-SDZ038>040- 052>056-058-059-061-062-066-067-070-071-221145- Lyon-Osceola-Dickinson-Sioux-O`Brien-Clay-Lincoln-Murray- Cottonwood-Nobles-Jackson-Pipestone-Rock-Beadle-Kingsbury- Brookings-Jerauld-Sanborn-Miner-Lake-Moody-Aurora-Davison-McCook- Minnehaha-Turner-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 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. $$ IAZ020>022-031-032-NEZ013-014-SDZ050-057-060-063>065-068-069- 221145- Plymouth-Cherokee-Buena Vista-Woodbury-Ida-Dixon-Dakota-Gregory- Brule-Hanson-Charles Mix-Douglas-Hutchinson-Bon Homme-Yankton- ...MODERATE FIRE DANGER... The Grassland Fire Danger Index will reach the moderate category this afternoon. Marginal weather conditions or lowering moisture content of grasses, and other dry organic material on the ground, indicate that there is some potential for a fire to spread. Any outdoor burning should be closely monitored. OUTLOOK FOR WEDNESDAY AFTERNOON...The Grassland Fire Danger Index will reach the moderate category. The grassland fire danger product reflects fire danger for native grasses. It is not intended for cured agricultural crops, nor will it reflect conditions in road ditches which have been mowed. $$