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East Coast Storm; Heavy Rain and Flooding in the Southwest U.S.; Typhoon Remnants Impacting Alaska

A coastal storm continues to bring heavy rain, coastal flooding, high surf, dangerous rip currents, and gusty winds to the East Coast into early Tuesday. A heavy rain and flash flood risk continues for the Southwest/Four Corners region with lingering tropical moisture through Monday. Typhoon remnants are causing strong winds, heavy rain, and coastal flooding across western Alaska through Monday. Read More >

Flood Outlook issued March 13, 2025 - Final Outlook

Key Points

  • The risk of spring flooding is below average across southern Wisconsin.
  • The spring flood risk is based on the following factors: Little snowpack, average streamflow values and average to below average soil moisture. In some areas the ground is still frozen which can result in increased runoff and flooding potential.
  • This flood risk pertains to the underlying risk for the mid March to the mid June time period as a whole. The risk may be higher with individual weather events. Flooding is still possible with heavy rain.
  • River flooding in southern Wisconsin typically occurs in March and April when there is a rapid snowmelt and/or heavy rain, but it can happen any time of the year.

What Has Changed

  • Frost depth has decreased and the top layer is thawing and the ground is completely thawed in some areas, reducing the flood risk.
  • River ice has melted, however many lakes remain frozen.

Briefing Slides

 

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