Severe thunderstorms will pose significant danger to those celebrating Father’s Day weekend outdoors from the eastern Great Lakes to the Arklatex region of the United States into Sunday night.
Residents from Ohio and Tennessee valleys to the Great Lakes and central Appalachians will need to keep handy a weather radio or cellphone with severe weather alerts enabled. A separate area of severe weather will erupt overnight in southeastern Oklahoma and northeastern Texas.
“The storms threaten to spoil outdoor barbecues, fishing and boating ventures and trips to the beach around the Great Lakes for Father’s Day,” AccuWeather Meteorologist Kyle Elliott said.
Even worse, the risk of winds strong enough to flip over tents, knock down barbecue grills and toss other loose outdoor items will be high. Siding, roof, tree and power line damage is also likely.
Frequent lightning strikes, flooding downpours and hail will pose further dangers. An isolated tornado or two can not be ruled out.
Seeking shelter under a pavilion, tree or covered porch does not provide sufficient protection from lightning and high winds. Seeking shelter indoors or in a vehicle with a metal roof is the best option when the first clap of thunder is heard or stroke of lightning is seen.
After severe storms struck the Midwest to start the weekend, including in Kansas City, Missouri, for the second day in a row, the violent weather progress eastward on Father's Day.
“Into Sunday evening, storms will shift eastward and threaten a region from western New York and northwestern Pennsylvania through the Ohio and western Tennessee River valleys,” Elliott said.
Heavy thunderstorms capable of causing damaging winds and flooding downpours will then ignite overnight Sunday in the vicinity of southern Arkansas and northeastern Texas. Shreveport, Louisiana, and Dallas are among the cities at risk.
Ahead of the main line of severe thunderstorms, a nearly stationary complex of thunderstorms triggered flooding in Montgomery, Alabama, on Sunday morning. More than 3 inches of rain poured down in five hours.
The forward speed of the storm will slow significantly to end the weekend.
Downpours will crawl toward the central Appalachians and lower Tennessee River Valley Sunday night, when the threat for severe weather will greatly diminish but the threat for flooding will mount.
Winds thousands of feet above the ground will roughly flow parallel to the line of thunderstorms, which will result in hours of torrential rainfall in many areas.
The saturated soil combined with the slowed forward progress and repeating nature of the storms will result in an enhanced risk of flash, urban and small stream flooding.
“Any thunderstorm that repeatedly slams any one location can produce over 3 inches of rain in a short amount of time,” Elliott said.
The thunderstorms will slowly march eastward and may intensify and once again turn severe prior to reaching the I-95 Northeast corridor later Monday.
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