Multiple rounds of showers and storms moving through the region overnight tonight will bring heavy rainfall. This may produce areas of flooding or flash flooding, especially in areas where storms move over repeatedly. If you live in a flood prone area, have a plan in place now in case of overnight flooding. Diagrams and description provided | National Weather Service

A tornado warning is in effect for portions of Northern Kentucky until 1:15 a.m. Thursday. Affected areas should take cover.

Affected areas include Alexandria, Silver Grove, Melbourne and California.

Affected areas should seek shelter in a basement or on the lowest floor of a building. Move away from windows. If you are outside, move to the nearest substantial shelter and cover yourself against flying debris.

The warning was issued after National Weather Service radars measured rotations in the affected areas.

A flash flood warning has also been issued for Boone County and northern portions of Kenton and Campbell Counties until 4 a.m.

The severe weather coincides with the emergence of tropical storm Arthur, the first of the year, which developed off the coast of Texas Wednesday.

“Showers and thunderstorms will develop through late afternoon and then move southeast across the area overnight,” according to the National Weather Service. “Some severe storms will be possible. Damaging wind is the primary threat. However, large hail, localized flash flooding and a few tornadoes will also be possible.”

People around rivers, creeks, streams and other flood-prone areas should monitor weather conditions and be prepared to act if flooding occurs. The most precipitation is predicted to occur in the early morning hours.

The service is recommending people have multiple means of keeping up with the weather, given the tornado risk.

Each county has its own emergency notification system, which residents can learn about at the links below. All systems are free.

You can view the precipitation radar below or at the National Weather Service’s dedicated radar page. Stay up to date with announcements and warnings at weather.gov or at the National Weather Service’s X page.

Refresh the page for up-to-date radar results.

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