Severe Weather Risk for Upper Midwest and Ohio Valley, Heat Alerts in West


Strong thunderstorms will bring a risk of severe weather to the upper Midwest and Ohio Valley on Tuesday, excessive heat warnings for the West and heat advisory for southeastern Louisiana, and latest on Hurricane Larry.

Severe weather threat over upper Midwest and Ohio Valley, thunderstorms for South and Southeast

Thunderstorms will span over portions of the Midwest across parts of the Ohio Valley and Great Lakes and portions of the South and Southeast on Tuesday, particularly along the Gulf Coast, WKRG reported.

In the upper Midwest and Ohio Valley, following a mild Labor Day weekend, a big jump in high temperatures is expected for the region before a cold front in the afternoon brings potential severe thunderstorms, which could arrive anywhere from 2 PM-8 PM. Storms could bring damaging wind, hail, and isolated tornado risk, CBS Chicago reported.

The National Weather Service (NWS) is warning severe thunderstorms will be possible over parts of the upper Midwest and Ohio Valley on Tuesday to include northeastern Illinois, Northwestern in northern Indiana, Northwestern Ohio, and Michigan.

Heat alerts in the West for Tuesday

The National Weather Service (NWS) has issued a number of heat alerts for parts of the West and southeastern Louisiana on Tuesday.

Excessive heat warning: Southern, southeastern and desert regions of California; Southern Nevada; Northwestern and Western Arizona; southwestern Utah.

Heat advisory: North-central, central south-central, and Southern California; southeastern Louisiana.

The latest on Hurricane Larry and a new disturbance in the Gulf

As of 5 AM Monday, Larry was a category 3 hurricane with sustained winds of 120 mph, located 830 miles southeast from Bermuda, moving northwest at 10 MPH, according to the National Hurricane Center (NHC). Currently, Larry is forecast to calm down and make a sharp turn to the northeast avoiding the North American content, the Orlando Sentinel reported.

Nonetheless, forecasters predict that because of Larry’s hurricane-force winds extending 70 miles out from its center and its tropical-storm-force winds extending 185 miles, the NHC says “significant swells” could cause dangerous surf and rip current conditions along the East Coast of the United States by midweek, the Miami Herald reported.

New disturbance in the Gulf

Forecasters are watching a new disturbance in the Gulf of Mexico that is expected to move east toward Florida. However, the system has a better chance of forming into a tropical depression after it passes over Florida and into the waters off the East Coast. The National Hurricane Center (NHC) giving the system a 10% chance of forming by Thursday and a 30% chance of formation by Sunday.