Severe Thunderstorms, High Winds, Hail Forecast Friday Night: NWS

MILWAUKEE, WI — The National Weather Service has issued a hazardous weather outlook for southeastern Wisconsin as severe thunderstorms, heavy rainfall, damaging winds and hail are forecast to move in later Friday.

The NWS says thunderstorms are expected Friday as low pressure and an associated cold front move through. Some storms may be severe, with the threat for heavy rainfall again as well. Large hail and damaging winds will be the main threats again, though a tornado is not out of the question.

"This afternoon/evening's thunderstorm chances will depend on how fast we clear out from this morning's thunderstorms," the NWS said in their bulletin Friday.

A Flash Flood Watch remains in effect for northern portions of the area until early evening, the NWS said.

Hazards: Severe thunderstorms and heavy rainfall. Large hail and damaging winds are the main threats, with a tornado also possible. Flash flooding threat is diminishing but still possible in the north as well.

Areas Impacted: The flash flood threat is diminishing toward central Wisconsin, weather observers said. The severe storm threat continues across all of southern Wisconsin, but especially south of I-94.

Timing and Duration: The NWS said the greatest chance for severe storms will Friday evening. The flash flood threat in the north is through the day, but gradually diminishing.

Impacts: High winds, large hail, and frequent lightning will pose a threat to those outdoors and to temporary structures. Some structural, tree and power line damage will also be possible. Additionally, heavy rainfall may result in life threatening flash flooding of creeks and streams, urban areas, highways, streets, and underpasses.

Certainty and Considerations: There remains some uncertainty with the coverage of stronger storms later Friday.