Warm Weather Brings Concerns of River Rises and Ice Jams in Vermont

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After an unusually cold winter, warmer weather is finally arriving in Vermont, with highs expected to reach the 50s and even low 60s by early next week. However, the rapid snowmelt from these spring-like temperatures will cause significant runoff into rivers and streams, leading to concerns about possible river rises, ice movement, and ice jams that could result in minor flooding.

Why it matters

Vermont has experienced a particularly harsh winter with heavy snowfall and thick ice on its rivers. The sudden shift to warmer weather will provide a welcome taste of spring, but it also raises concerns about the ability of the state's rivers to handle the rapid influx of snowmelt water without causing flooding or other issues.

The details

Sunday's highs will reach the 40s, but temperatures will climb into the 50s and low 60s by Monday. This rapid warming will cause rapid snowmelt that will flow into rivers and streams, leading to expected river rises, particularly along the Mad River, Ausable River, and Otter Creek. While widespread flooding is not expected at this time, the combination of rising water levels and potential ice jams could result in minor flooding in some areas.

• Highs will reach the 40s on Sunday, March 10, 2026.
• Highs will climb into the 50s and low 60s on Monday, March 11, 2026.
• Mild temperatures will continue through Thursday, March 14, 2026, with rain likely on Wednesday and Thursday.

What’s next

The First Alert Weather Team at WCAX will continue to monitor the situation and provide updates on the potential for river rises, ice movement, and any flooding risks.