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On Monday, May 18, 2026, parts of Michigan are under a severe thunderstorm warning, with risks including damaging winds, large hail, localized flash flooding, and the possibility of isolated tornadoes. The National Weather Service (NWS) has indicated that severe weather will progress from west to east across the state, mainly impacting the Lower Peninsula. Storm activity is anticipated to begin in the late morning or early afternoon and persist into the evening.

Key Threats on Monday

• Wind gusts reaching 40–60 mph
• Hail potentially exceeding 1 inch
• Localized flash flooding
• Minimal risk of isolated tornadoes

The NWS office in Gaylord has highlighted that northern Michigan may experience scattered severe storms, particularly between noon and 7 PM.

Tuesday's Forecast

Another wave of thunderstorms is anticipated on Tuesday, May 19, with a Slight Risk (Level 2 out of 5) for southeastern Michigan. Storms could form between 2 PM and 8 PM, bringing similar threats: damaging winds, large hail, heavy rainfall, and isolated tornadoes.

Safety Recommendations

Residents are advised to:

• Review their emergency plans for severe weather.
• Ensure they have multiple methods to receive weather alerts at all times.
• Stay updated through local NWS offices and trusted weather apps.
• Avoid traveling in affected areas during peak storm periods if possible.

Upcoming Temperature Drop

Following the severe weather, a notable temperature drop is expected. From Tuesday to Wednesday, temperatures may decrease by nearly 20 degrees as cooler, drier air moves into the Great Lakes region. Mid-week highs are projected to remain in the 60s, with overnight lows dipping into the 40s, offering a respite from the recent heat and humidity.