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Red Flag Warning

Status

New Event Expired

Start Time

Mon 05/12/2025 01:00 PM EDT

End Time

Mon 05/12/2025 10:00 PM EDT

Significance

Warning

Impacts

High impact

Locations Affected

Duluth, MN ∙ Leader, MN ∙ Mizpah, MN ∙ Bowstring Lake, MN ∙ International Falls, MN ∙ Henriette, MN ∙ Sturgeon Lake, MN ∙ Virginia, MN ∙ Shaw, MN ∙ Deer River, MN

Headline

...CRITICAL FIRE WEATHER CONDITIONS EXPECTED IN NORTHEASTERN MINNESOTA AND IN NORTHWESTERN WISCONSIN TODAY...
.Breezy south-southwesterly to southerly winds gusting to 25 to 35 mph today along with relative humidity values as low as 15 percent will lead to critical fire weather conditions across northeastern Minnesota and northwestern Wisconsin.
Breezy southerly winds with gusts of 20 to 30 mph on Monday along with relative humidity values as low as 15 percent will lead to critical fire weather conditions across northeastern Minnesota and possibly in northwestern Wisconsin.
Additional breezy southerly winds and low relative humidity on Tuesday may lead to near-critical to critical fire weather conditions.

Full Alert Message

URGENT - FIRE WEATHER MESSAGE National Weather Service Duluth MN 218 PM CDT Sun May 11 2025 ...CRITICAL FIRE WEATHER CONDITIONS EXPECTED IN NORTHEASTERN MINNESOTA AND IN NORTHWESTERN WISCONSIN TODAY... .Breezy south-southwesterly to southerly winds gusting to 25 to 35 mph today along with relative humidity values as low as 15 percent will lead to critical fire weather conditions across northeastern Minnesota and northwestern Wisconsin. Breezy southerly winds with gusts of 20 to 30 mph on Monday along with relative humidity values as low as 15 percent will lead to critical fire weather conditions across northeastern Minnesota and possibly in northwestern Wisconsin. Additional breezy southerly winds and low relative humidity on Tuesday may lead to near-critical to critical fire weather conditions. ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM CDT THIS EVENING FOR GUSTY WINDS AND CRITICALLY LOW RELATIVE HUMIDITY FOR NORTHEASTERN MINNESOTA... ...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM CDT MONDAY FOR GUSTY WINDS AND CRITICALLY LOW RELATIVE HUMIDITY FOR NORTHEASTERN MINNESOTA... The National Weather Service in Duluth has issued a Red Flag Warning for wind and low relative humidity, which is in effect from noon to 9 PM CDT Monday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...In Minnesota, Koochiching, North St. Louis, Northern Cook and Lake, North Itasca, Central St. Louis, North Cass, South Itasca, South Cass, Crow Wing, Northern Aitkin, South Aitkin, Carlton and South St. Louis and Pine. * WINDS...South 10 to 20 mph with gusts up to 30 to 35 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...Any fires that ignite will spread rapidly and become difficult to control. Outdoor burning is not recommended. * ADDITIONAL DETAILS...RH improves slightly overnight to between 35 to 55 percent before again falling to critically low values again on Monday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.

Technical Header

MNZ010>012-018-019-025-026-033>038-121000- /O.UPG.KDLH.FW.A.0003.250512T1700Z-250513T0200Z/ /O.NEW.KDLH.FW.W.0002.250512T1700Z-250513T0200Z/ /O.CON.KDLH.FW.W.0001.000000T0000Z-250512T0300Z/ Koochiching-North St. Louis-Northern Cook and Lake-North Itasca- Central St. Louis-North Cass-South Itasca-South Cass-Crow Wing- Northern Aitkin-South Aitkin-Carlton and South St. Louis-Pine- 218 PM CDT Sun May 11 2025