Hazardous Weather Outlook
Issued by NWS Duluth, MN
Issued by NWS Duluth, MN
594 FLUS43 KDLH 220936 HWODLH Hazardous Weather Outlook National Weather Service Duluth MN 436 AM CDT Tue Jul 22 2025 MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-230945- 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- 436 AM CDT Tue Jul 22 2025 This Hazardous Weather Outlook is for portions of northeast Minnesota and northwest Wisconsin. .DAY ONE...Today and Tonight Several rounds of thunderstorms are expected today and tonight. Some storms may be strong to severe, particularly this morning and tonight. The strongest storms will be capable of frequent cloud- to-ground lightning, damaging wind gusts up to 80 mph, hail up to golf ball size, and heavy rainfall which may lead to flash flooding. A Flood Watch is in effect for nearly all of the Northland. Warm and muggy conditions are forecast today across central Minnesota into northwest Wisconsin. Heat indices of 90 to 100 degrees are forecast along and south of a line from near Walker MN to Moose Lake to near Winter WI. A Heat Advisory may be needed. .DAYS TWO THROUGH SEVEN...Wednesday through Monday Several more rounds of storms are forecast Wednesday morning through Thursday afternoon. Storms may be strong to severe Wednesday. The main risks from the storms are frequent cloud- to- ground lightning, damaging wind gusts up to 80 mph, hail up to golf ball size, and heavy rainfall which may lead to flash flooding. A Flood Watch is in effect for nearly all of the Northland. Very warm and humid conditions are expected on Wednesday for inland northwest Wisconsin west into Pine County. A Heat Advisory may be needed. A chance of storms returns to the forecast for the weekend into early next week. .SPOTTER INFORMATION STATEMENT... Skywarn spotters may be needed today through Wednesday evening. Spotters and the public are encouraged to report hail of any size, wind damage, rainfall amounts, and flooding to the National Weather Service. $$ LSZ121-140>148-150-230945- Bayfield to Oak Point WI-Grand Portage to Grand Marais MN- Grand Marais to Taconite Harbor MN- Taconite Harbor to Silver Bay Harbor MN- Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN- Duluth MN to Port Wing WI-Port Wing to Sand Island WI- Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI- Outer Apostle Islands Beyond 5 NM from Mainland- 436 AM CDT Tue Jul 22 2025 This Hazardous Weather Outlook is for portions of Lake Superior and the Nearshore waters of western Lake Superior. .DAY ONE...Today and Tonight Several rounds of thunderstorms are forecast today and tonight. Some storms may be strong to severe. The main risks from the storms will be frequent cloud-to-water lightning, hail up to 1.25 inches in diameter, wind gusts to 50 knots, and torrential rainfall which would reduce visibility to less than 1/4 mile at times. .DAYS TWO THROUGH SEVEN...Wednesday through Monday Several additional rounds of storms are possible Wednesday through Thursday afternoon. Some storms may be strong to severe once again. Thunderstorms return to the forecast this weekend and early next week. $$ Huyck More information may be obtained at the following web address: http://www.weather.gov/duluth