Drenching storms to rattle north-central US into midweek
By Alex Sosnowski, AccuWeather senior meteorologist
July 05, 2018, 5:04:35 AM EDT
Strong to locally severe thunderstorms are forecast to erupt on the rim of a large swath of hot and humid air over the north-central Plains and the Upper Midwest this week.
People venturing outdoors should keep an eye out for rapidly changing weather conditions, especially during the afternoon and evening hours.
Wind gusts to 70 mph cannot be ruled out in the strongest storms. The risk of flash flooding will accompany the storms as well.
During Wednesday evening and night, the severe weather threat is likely to continue to escalate.
As a storm moves across the northern Plains, it is forecast to produce a large swath of powerful thunderstorms.
"The storms, which may last into the overnight hours, may bring damaging winds, large hail and localized urban flooding," according to AccuWeather Storm Warning Meteorologist Richard Schraeger.
"The tornado threat is low, but a few isolated spin-ups cannot be ruled out."
The threat of severe weather into Wednesday night is expected to extend from northeastern Minnesota, northwestern Wisconsin and part of the Upper Peninsula of Michigan to Nebraska and the northeastern corner of Colorado.
Major cities that may be affected by the storms include Omaha, Nebraska; Sioux Falls, South Dakota; Minneapolis; Sioux City, Iowa; and Eau Claire, Wisconsin.
How a single lightning strike can claim many lives
7 lightning safety tips if you’re caught outside during a thunderstorm
What you should do if you get stuck driving in floodwaters
What's the difference between straight-line winds and tornadoes?
The difference between tornado watches and warnings
The storms will arrive just in time for the Fourth of July holiday and can put cookouts, festivities and fireworks in jeopardy during the Fourth of July in Minneapolis.
"Anyone spending the holiday outdoors will want to enable audible alerts on cell phones to receive severe weather bulletins as they are issued and seek shelter indoors as soon as thunder is heard," AccuWeather Senior Meteorologist Kristina Pydynowski said.
Residents and visitors may have to settle on nature’s fireworks if officials deem the weather too hazardous to let Wednesday’s evening displays proceed as planned, she added
Motorists traveling on portions of interstates 80, 90 and 94 should be prepared for rapid reductions in roadway visibility and reduce speed in blinding downpours to minimize the risk of hydroplaning.
Some parts of the Upper Midwest at risk for storms this week have been hit hard by flooding over the last two weeks, so any additional rainfall in a short amount of time can trigger new flooding concerns.
While rain is needed in parts of the Plains and Midwest, any persistent downpours will aggravate the flooding situation in parts of Iowa, southern Missouri, northwestern Illinois and northern Missouri.
By Thursday and Friday, much cooler and less humid air will plunge southward from Canada with the main focus from the upper Mississippi Valley on east.
The leading edge of the cooler air will continue to set off showers and heavy, gusty thunderstorms.
On Thursday, these storms will be centered from the middle and lower Great Lakes to the Ohio Valley and central Plains.
Comments that don't add to the conversation may be automatically or manually removed by Facebook or AccuWeather. Profanity, personal attacks, and spam will not be tolerated.
More Weather News
Weather News - March 21, 2019, 3:18:47 PM EDT
The four-day blaze sent smoke and dangerous fumes billowing into the air -- and resulted in a shelter-in-place alert
Flood damages exceed $1.3 billion in Nebraska as floodwaters begin to slowly recede across central US
Weather News - March 21, 2019, 5:56:58 PM EDT
Evacuations, flood warnings and states of emergency persist as historic river flooding continues to burden the north-central United States.
Weather News - March 21, 2019, 1:16:03 PM EDT
In less than 24 hours, Veronica went from an unnamed tropical low to a Category 4 intense tropical cyclone as it spun off the northwestern coastline of Western Australia. The powerful cyclone is now taking aim at the Pilbara Coast.
Tropical Cyclone Trevor may bring a year's worth of rain to central Australia after slamming into Northern Territory
Weather News - March 21, 2019, 9:01:33 PM EDT
The dangers to lives and property are expected to expand well away from where Tropical Cyclone Trevor makes a dangerous strike on Australia's Northern Territory early this weekend.
Cyclone Idai flood catastrophe: Estimates of more than 1,000 dead as 'inland ocean' forms in Mozambique
Weather News - March 21, 2019, 4:57:57 PM EDT
More than a thousand people are feared dead in Mozambique and Zimbabwe as the flood catastrophe caused by Tropical Cyclone Idai rages on. Drier weather is expected to finally return later this weekend.
Weather News - March 21, 2019, 2:36:05 PM EDT
A combination of factors may come together to unleash a rapid flooding event across the central and southeastern portions of Maine and New Brunswick from Thursday night to Friday night.
Weather News - March 21, 2019, 11:53:04 AM EDT
Weather and the expanded MLB schedule have created unforgettable moments for baseball fans
Weather News - March 21, 2019, 6:02:56 PM EDT
A NOAA satellite image shows how the vernal equinox divides the Earth, a phenomenon that's as fleeting as it is breathtaking