Weekend Severe Weather Concerns Across the U.S.

June 18, 2010; 2:55 PM ET
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Several areas across the United States will be threatened by severe weather this weekend, including on Sunday when many people are celebrating Father's Day.

Eastern Great Lakes, Ohio Valley Threat

The same storm system triggering damaging thunderstorms over the Midwest late Friday will threaten the eastern Great Lakes and Ohio Valley with severe weather on Saturday.

The thunderstorms are expected to rattle the following cities: Syracuse, N.Y.; Buffalo, N.Y.; Erie, Pa.; Pittsburgh, Pa.; Columbus, Ohio; Cincinnati, Ohio; and Indianapolis, Ind. The Canadian cities of Toronto and Montreal will also be targeted.

The heat pouring into the Northeast on Saturday will help fuel the severe thunderstorms over the eastern Great Lakes and Ohio Valley

The majority of the severe thunderstorms will occur during the afternoon and evening. The strongest of these thunderstorms will unleash powerful winds, hail and frequent lightning.

Numerous trees and power lines may get downed by strong thunderstorm winds. Additional damage or bodily harm could result if the trees land on vehicles or buildings.

The hailstones could crack windows, while a couple tornadoes touching down cannot be ruled out.

Rounds of Severe Weather Expected in the Central Plains

The cluster of damaging thunderstorms that tore through Iowa earlier Friday was the precursor to additional rounds of severe weather over the central Plains this weekend.

Another cluster of thunderstorms should develop over north-central Kansas and south-central Nebraska late Friday night. A localized number of the thunderstorms will drop hail.

These thunderstorms are expected to spread into northern Missouri and central Illinois on Saturday, potentially causing damage. St. Louis could become threatened.

Yet another cluster of thunderstorms will develop Saturday night over the central Plains. This cluster will linger into Sunday with more thunderstorms expected to fire in the afternoon.

The severe weather Saturday night into Sunday will target the corridor from South Dakota and Nebraska to central Illinois. In addition to damage being caused by strong winds and hail, the threat for flash flooding will also exist.

Localized Danger over Southern High Plains, South

Each day of the weekend, a more localized number of severe thunderstorms will fire over the southern High Plains and South. The afternoon hours will prove to be the most active time for any intense thunderstorms.

Across each region, the strongest thunderstorms will be capable of producing damaging winds and isolated tornadoes. Pounding hail will be more common over the southern High Plains, while blinding downpours will be more of threat across the South.

Severe Weather to Even Target Northern Rockies

The danger of severe weather will not be confined to the eastern two-thirds of the nation this weekend. The northern Rockies will also be threatened.

Residents and visitors to western Montana and neighboring parts of Idaho should prepare for severe thunderstorms to ignite both Saturday and Sunday. The threat zone will also expand to eastern Montana on Sunday.

The afternoon is when the strongest thunderstorms should fire. The main dangers will be damaging winds and hail. A couple tornadoes could touch down.

Precautions that Should be Taken

Be sure to seek shelter immediately if a storm-related warning is issued for the area you are either residing or vacationing at. Motorists should also stay alert for these warnings.

Those with outdoor plans in the areas highlighted above can listen for the warnings by carrying along a weather radio or have warnings sent to your cell phone.

Even if a warning is not in effect, be sure to move indoors if you hear thunder as you are then close enough to get struck by lightning.

Related to the Story:

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