Posted May 29, 2018 9:12 p.m. EDT
The center of Subtropical Depression Alberto is expected to move north on Wednesday from the lower Ohio Valley to the central Great Lakes. Areas immediately surrounding the storm can expect heavy rain and thunderstorms. Downpours may cause flash flooding. The circulation of air around the storm will produce breezy conditions, with gusty winds in some spots.
Farther from the storm system’s center, tropical air will help fuel spotty, drenching showers and thunderstorms. Heavy downpours are expected to extend from parts of Wisconsin and Minnesota to Florida.
The Middle Atlantic coast to New England can expect a mainly dry day. A high-pressure system will move slowly east into the area, keeping tropical air at bay.
Heat will linger over the South-Central States. Even hotter conditions are in store later this week, with highs in many areas reaching or exceeding 100 degrees.
Most of the West can expect dry conditions and at least partial sunshine. A few storms are projected to develop around midday and into the afternoon over the central and northern Rockies as well as the Sierra Nevada.
FOCUS: Severe Thunderstorms on Thursday
A storm will move through the northern Rockies on Thursday and into Thursday night. Rain and thunderstorms are expected from Idaho through Montana. Some of the storms may turn severe from southeastern Idaho to east-central Montana.