Flooding Risks from Tropical Moisture Across the Intermountain West and East Coast

Tropical moisture from Isaias and Rachel will impact portions of the Intermountain West and East Coast states. Flooding, gusty winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, record warmth will spread northward across the Mississippi Valley the next few days. Looking for snow, the first winter storm of the season is underway across the northern Rockies. Read More >

The river gauge at the South Branch Rock River at Waupun has been discontinued. It was operated in cooperation with the City of Waupun and the USGS. The NWS has flood stages established for that site corresponding to flood impacts. The NWS does not issue river water level forecasts for that location, however we issue river flood warnings when the river level exceeds the flood stage. The river flood warnings message the flood hazards at the known water level. Since there are no longer observed flood levels, the NWS will no longer issue river flood warnings for that location.

If there is observed flooding or expected flooding in the area based either on reports or radar estimated precipitation, we will issue a flood advisory, flood warning, or flash flood warning for the area of concern. The wording will highlight the hazard but will not mention a specific river level or impacts tied to that river level as listed on the NWS Water Prediction Service page for Waupun.

The nearest river gauge site is West Branch Rock River near Waupun, courtesy of the U.S. Fish and Wildlife Service.

Please contact sarah.marquardt@noaa.gov with any questions.

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Flooding Risks from Tropical Moisture Across the Intermountain West and East Coast

River Gauge At South Branch Rock River At Waupun Discontinued