FLUS43 KDLH 180837 HWODLH Hazardous Weather Outlook National Weather Service Duluth MN 337 AM CDT Mon May 18 2026 MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-190845- Koochiching-North St. Louis-Northern Cook/Northern Lake- North Itasca-Central St. Louis-Southern Lake/North Shore- Southern Cook/North Shore-North Cass-South Itasca-South Cass- Crow Wing-Northern Aitkin-South Aitkin-Carlton/South St. Louis- Pine-Douglas-Bayfield-Ashland-Iron-Burnett-Washburn-Sawyer-Price- 337 AM CDT Mon May 18 2026 This Hazardous Weather Outlook is for portions of northeast Minnesota and northwest Wisconsin. .DAY ONE...Today and Tonight There is a risk of severe storms in east-central Minnesota and northwest Wisconsin this evening into early Tuesday morning. Damaging wind gusts to 60 mph and large hail to half dollar size are the main severe weather threats. Isolated tornadoes cannot be ruled out. Areas of repeated heavy rainfall could lead to localized flash flooding, with the best potential in east- central Minnesota to northwest Wisconsin. Localized minor flooding continues over portions of the Boundary Waters. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday There is potential for areas of frost across much of the Northland Tuesday night,and possibly again Wednesday night. A freeze is possible for areas along and north of US-2 in northeast Minnesota Tuesday night. Localized minor flooding continues in the Boundary Waters region. .SPOTTER INFORMATION STATEMENT... Skywarn spotters are encouraged to report hail of any size and rainfall amounts to the National Weather Service. $$ LSZ121-140>148-150-190845- Bayfield to Oak Point WI-Grand Portage to Grand Marais MN- Grand Marais to Taconite Harbor MN- Taconite Harbor to Silver Bay Harbor MN- Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN- Duluth MN to Port Wing WI-Port Wing to Sand Island WI- Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI- Outer Apostle Islands Beyond 5 NM from Mainland- 337 AM CDT Mon May 18 2026 This Hazardous Weather Outlook is for portions of Lake Superior and the Nearshore waters of western Lake Superior. .DAY ONE...Today and Tonight Strong and gusty northeast winds continue through mid morning, with gusts to 25 knots and building waves to 4 to 8 feet. Winds diminish through much of the day. Strong and gusty northeast to northerly winds increase again this evening. There is the potential for gales up to 35 knots late tonight for the southwest arm of Lake Superior, the Outer Apostle Islands, and Grand Marais to Grand Portage. Small Craft Advisories, and possibly Gale Warnings, will be needed again this evening into Tuesday. Another round of thunderstorms are possible this evening into tonight. A few storms may be severe with wind gusts up to around 50 knots and large hail to the size of quarters. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday Strong northeast winds, with gusts to 25kts, continue Tuesday morning. These winds will gradually diminish through the morning and turn to the north, then northwest through the afternoon. $$ HA More information may be obtained at the following web address: http://www.weather.gov/duluth