Severe Weather and Flood Threat for Early Part of the Week


Thunderstorms over the central and eastern parts of the nation will bring severe weather and a flooding threat on Monday. In addition, potential hurricanes are brewing in the Atlantic, plus storms over the South and East on Tuesday. See the three-day forecast now.

NWS weather alerts for Monday

Here are Monday’s weather alerts from the National Weather Service (NWS).

Flood warning: central and southeastern Mississippi, southeastern Louisiana, northern Texas, and northwestern South Dakota.

Flood watch: southeastern New Mexico, western Texas, northeast Florida, and southeast Georgia.

Excessive heat watch: central and southern California, southern Nevada, and western and central Arizona.

Heat advisory: western New York.

Multiple systems active in the Atlantic

It has been a quiet two months in the tropics, but activity in the Atlantic is ramping up. Americans are urged to review and make hurricane preparations.

Forecasters with the National Hurricane Center (NHC) are watching four areas of disturbed weather in the Atlantic. Attention is focused on “Disturbance 1,” also named “Invest 91L,” which has an 80% chance of development within the next five days and a 50% chance in the next two days. The system will be tracking just northwest of the Leeward Islands by the end of the week, and most forecast models have the storm turning back to sea, WPTV reported.

Three other systems are of potential concern: “Disturbance 2” has a 10% chance of cyclone development, “Disturbance 3” has a 30% chance of development, and “Disturbance 4,” located east of Belize and Cancún, has a 20% chance of development over the next five days, according to the NHC.

The 3-day forecast: Thunderstorms, severe weather, flood risk

Thunderstorms over nearly half the nation to start the week, predominantly over the Southwest, South, and East on Tuesday. Storms are diminishing on Wednesday except over parts of the South and Northeast.

Here is the 3-day forecast from the National Weather Service (NWS).

Monday: Severe weather, flooding risk

Thunderstorms over the South-Central US, Midwest, South, Southeast, Ohio Valley, and parts of the mid-Atlantic.

The Storm Prediction Center (SPC) has issued a Level 3 severe weather risk for eastern Iowa, northern Illinois, northwestern Indiana, and southwestern Michigan. The greatest risks are damaging wind gusts up to 60 mph, quarter-sized hail, and flooding rain. The risk of tornadoes is low.

A Level 2 severe weather risk has been issued for eastern Iowa, northeastern Missouri, central and northern Illinois, southern Wisconsin, central and northern Indiana, southern Michigan, and northwestern Ohio.

The NWS is warning of heavy rain with potential flash flooding in the Gulf around eastern Texas and southeastern Louisiana.

Heat alerts in the West and for New York (see alerts above).

Tuesday: Southern and eastern thunderstorms

Thunderstorms across the Southwest from Arizona, through the South-Central US, into the deep South, particularly in the southeast of Florida and along the Carolinas. Thunderstorms throughout the mid-South, Ohio Valley, mid-Atlantic, and Northeast.

Currently no flooding threats or severe weather in the forecast. However, storms could be strong for much of the mid-Atlantic and Northeast from Virginia to Maine.

High temperatures are expected to continue in the West for parts of California, Nevada, and Arizona. Temperatures could also be high in parts of the Northwest for Washington, Oregon, and Idaho.

Wednesday: Southern and northern thunderstorms

Scattered thunderstorms over parts of New Mexico, Colorado, and Nebraska. A line of storms will stretch from New Mexico along the southern tier and the Gulf to Florida and into Georgia and South Carolina. Farther north, thunderstorms over parts of Ohio and Pennsylvania and the rest of the Northeast from New York to Maine.

No severe weather or flooding threats are currently in the forecast.

High temperatures are expected to expand throughout California, Washington, Oregon, Idaho, and southern Utah, as well as to continue in parts of Nevada and Arizona.