The next significant round of severe thunderstorms is unfolding as forecast over the High Plains Wednesday and will shift eastward over the Central states later in the week. The multiple-day outbreak could bring a number of strong tornadoes.
Indications are the movement of this storm and strong upper-level winds will interact with a zone of building heat and humidity over the Plains in such a way to produce an outbreak of powerful and dangerous thunderstorms.
Areas from Chicago to Des Moines, Omaha, Kansas City, Wichita, St. Louis, Tulsa, Oklahoma City, Dallas and Little Rock could be impacted by violent storms through late this week.
In addition to the risk of large hail, damaging wind gusts and frequent lightning, there is the risk for several tornadoes. Some of these tornadoes could be particularly long-lived and intense, especially across Kansas, Oklahoma and south-central Nebraska.
Severe weather including drenching rains, large hail, damaging winds and several tornadoes has impacted areas from Texas to Wisconsin.
Look for the potential for these storms, including a few tornadoes, to shift northeastward central and northeastern Oklahoma, eastern Kansas, eastern Nebraska and eastern South Dakota to northwestern Arkansas, much of Missouri, Iowa, Illinois, Wisconsin and southern Minnesota during the latter part of the week.
Another pocket of severe thunderstorms will be over part of the Northeast Wednesday afternoon and evening.
Essentially areas from New York state and northeastern Pennsylvania and northern New Jersey to western and southern New England are at risk for damaging wind gusts, large hail and frequent lightning strikes. There is also the risk of a tornado from the strongest couple of storms.
For more information consult Severe Storms From New York City to Boston.
Flooding Concerns Continue
In addition to the risk for violent thunderstorms, there is the likelihood of flooding problems, especially over parts of the central Plains to the Midwest that have already received heavy rain over the Memorial Day weekend and/or will do so into the end of this week.
Flooding problems have expanded from that of flash and urban concerns to major rivers centered on Iowa.
Portions of states that could be hit hard with flooding problems not only at the beginning of this week, but the end of the week include Iowa, Nebraska, Kansas, Missouri and Illinois.
As millions prepare to take part in Memorial Day weekend events, showers, storms and a potential tropical system could threaten outdoor activities and travel plans during the extended weekend.
Summerlike warmth will make it feel like the 90s F at times in the eastern United States through Memorial Day weekend, despite localized rainfall.
An area of showers and thunderstorms near the Bahamas has the potential to develop into a tropical system and impact part of the East Coast of the United States during Memorial Day weekend.
The threat for severe weather, including tornadoes and flash flooding, will expand across the central United States through the end of the week.
As summer approaches, sun protection becomes a vital part of daily activity.
A large tornado moved dangerously close to Dodge City, Kansas, on Tuesday afternoon, tracking just west of the center of the city.
Philadelphia, PA (1991)
96 degrees -- a record sixth 90-degree reading for the month. (The month ended with twelve 90-degree days.)
Chicago, IL (1992)
32 degrees, latest 32 or lower on record.
Iowa City, IA (1859)
Waterspout; 8 killed, one child was taken up, carried 500 yards and thrown in a slough but survived.