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Weather Alerts for Janesville, WI

Rock County, Wisconsin

Janesville is located in Rock County, Wisconsin. This page shows active weather alerts affecting Janesville issued by the National Weather Service.

NWS Forecast Office: Weather alerts for this area are issued by the National Weather Service MKX office.

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Active Alerts for Janesville

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Active Alert Map — Wisconsin

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Weather Overview for Janesville

Janesville, Wisconsin endures the harsh Upper Midwest winter climate with blizzards, lake-effect snow from the Great Lakes, and dangerous wind chills. Spring and summer bring tornado and severe thunderstorm outbreaks across the state.

Common alert types for this area:

  • Blizzard Warning
  • Winter Storm Warning
  • Lake Effect Snow Warning
  • Tornado Warning
  • Severe Thunderstorm Warning

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