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LIVE UPDATES: Derecho spawns damaging winds across the Plains as storms charge east

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A destructive damaging-wind event known as a derecho is bringing over 90 mph winds to the northern Plains Tuesday afternoon and is forecast to move east bringing severe thunderstorms.

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Tornado Warning issued in northeastern Iowa

A Tornado Warning has been issued for Buchanan County in northeastern Iowa until 9:30 p.m. CDT.

Posted by Andrew Wulfeck

Thunderstorm complex moving through Plains, Midwest meets derecho criteria

FOX Weather meteorologists say the line of showers and thunderstorms moving through the Plains and the Midwest now meets the definition of a derecho. The wind damage swath extends nearly 500 miles, surpassing the 400-mile derecho criteria

So far, there have been at least 17 reports of winds of at least 75+ mph.

Learn more about derechos: Click Here

Posted by Andrew Wulfeck

Storms moving through Plains meets derecho criteria, NWS says

Posted by Heather Brinkmann

VIDEO FORECAST: Severe Thunderstorm Watch issued for Chicago metro

More than 16 million people are under a Severe Thunderstorm Watch because of the threat of large hail and damaging winds.

Latest forecast: Click Here

Posted by Andrew Wulfeck

Tornado-warned storm moving through northern Illinois

National Weather Service meteorologists have issued a Tornado Warning for McHenry County in until 6:45 p.m. CDT.

Posted by Andrew Wulfeck

More than 30,000 outages reported in S.D.

A line of thunderstorms that pushed through South Dakota caused more than 30,000 electric outages according to PowerOutage.US. The storms have since moved into Minnesota, Iowa and Nebraska.

Posted by Andrew Wulfeck

VIDEO: Tornado-warned storm moves through Prince Georges County, MD

Video from Maryland shows a tornado-warned storm moving through the Bowie, MD area.

Posted by Andrew Wulfeck

VIDEO: Tornado-warned storms east of D.C.

Thunderstorms east of D.C. produced several Tornado Warnings on Tuesday. At least one of the tornadoes is believed to have touched down in Bowie, MD.

These storms are outside of a developing derecho moving through the Plains and the Midwest: Learn more

Posted by Andrew Wulfeck

Severe Thunderstorm Watch issued for Chicago region

A Severe Thunderstorm Watch has been issued for northern Illinois and includes the Chicago metro.

The watch is in effect until at least midnight and for the chance of storms with 80 mph and large hail.

Latest forecast: Click Here

Posted by Andrew Wulfeck

VIDEO: Sky turns green in South Dakota

Cameras captured an eerie sight over parts of the Northern Plains. The sky appeared green ahead of a line of storms.

Posted by Andrew Wulfeck

Largest city in SD reports wind gust to 73 mph

Sioux Falls, SD just reported a wind gust to 73 mph. Thunderstorms have exited the state and are impacting areas in Iowa, Minnesota and Nebraska.

Track the storms on FOX Weather 3D Radar: Click Here

Posted by Andrew Wulfeck

Storm damage reports stretch across 350 miles of South Dakota

Storm damage reports are rolling in across nearly 350 miles of South Dakota from outside Rapid City to western Sioux Falls.

Posted by Emilee Speck

Severe Thunderstorm Watch issued for much of IA, southern MN and eastern NE

The Storm Prediction Center has issued a new Severe Thunderstorm Watch box for parts of Iowa, Minnesota and Nebraska through 10 p.m. CDT.

Meteorologists warn damaging winds to 80 mph are likely and large hail.

Latest forecast: Click Here

Posted by Andrew Wulfeck

Seeing green: Storms producing colorful sky over Sioux Falls

This image from South Dakota Department of Transportation cameras shows the green-tinted sky over Sioux Falls as the storm rolls in.

Posted by Emilee Speck

7,400+ without power in South Dakota

More than 7,400 customers and counting are without power in South Dakota as a powerful wind storm moves across the region. The largest outages are in Hughes and Beadle.

The storm is now moving over Sioux Falls.

Posted by Emilee Speck

60 mph winds, hail reported in west Sioux Falls

The NWS in Sioux Falls says penny-size hail is now falling and 60 mph winds have been reported in western parts of the city.

Stay away from the windows. Winds over 90 and 80 mph have already been reported from this line of storms.

Posted by Emilee Speck

VIDEO: Ominous sky over Hartford, South Dakota

A developing derecho packing 90+ mph winds is pushing east and creating ominous cloud cover over Hartford.

Posted by Emilee Speck

PHOTO: Rain leaves Pierre, SD golf course soggy

Posted by Emilee Speck

Tornado Warning issued for McCook County, SD

The NWS has issued a Tornado Warning until 3:45 p.m. CT for parts of McCook County, South Dakota.

People in this area should prepare to find a safe place to shelter.

Posted by Emilee Speck

Minnesota and Iowa: What to expect

Wind gusts have already reached 96 mph in South Dakota this afternoon. As the powerful storms track east through the evening, the threat of 75- to 100-mph gusts will shift into southwestern Minnesota and northwestern Iowa.

- Brian Donegan, FOX Weather senior producer and meteorologist

Posted by Emilee Speck

Dangerous winds approaching Sioux Falls, SD

Damaging winds are expected to reach the Sioux Falls, SD area around 3:30 p.m. CT, and the National Weather Service warns those in the area to seek shelter immediately.

"These storms have a history of producing large hail and damaging winds up to 70 mph," the NWS says. They add unlike the derecho that blew through in May, there will not be a large dust cloud warning of the approaching winds.

Posted by Scott Sistek

WATCH: Intense storms move through South Dakota

Traffic cameras in Wolsey, South Dakota offer a birds-eye view of what drivers are experiencing as a developing derecho brings powerful wind and intense rain to the Plains.

Posted by Emilee Speck

View from space: Severe weather moves across South Dakota

Posted by Emilee Speck

What is a derecho?

A cluster of thunderstorms moving across the Plains Tuesday could qualify as a derecho, a powerful wind even that covers at least 400 miles.

Learn more about this powerful wind event and how NWS forecasters will determine if it is a derecho after the fact.

Posted by Emilee Speck

Whoa: 96 mph wind gust reported near Huron Airport

The NWS in Sioux Falls reports 96 mph and 90 mph wind gusts at the Huron, S.D. airport associated with the line of severe storms tracking across the Northern Plains.

Posted by Emilee Speck

Hail size: What's the difference?

Destructive hail comes on all shapes and sizes, but the graphic above shows the most common - from quarter-size to softball-size.

To check out what else you need to know about hail, click here.

Posted by Steven Yablonski

Strong thunderstorms approaching Mitchell, SD

Line of strong thunderstorms with potential damaging winds is approaching Mitchell, SD.

Posted by Scott Sistek

Severe Thunderstorm Watch issued for parts of Minnesota, Iowa, South Dakota and Nebraska

The National Weather Service has issued a Severe Thunderstorm Watch for four states across the Northern Plains until 4 p.m. CT. The primary threats include large hail and damaging wind gusts.

Posted by Emilee Speck

Tennis ball-size hail in South Dakota

Ryan Deal shared these photos of large hail and damages in Timber Lake, South Dakota as strong thunderstorms track east bringing 75+ mph winds and hail.

Posted by Emilee Speck

South Dakota peak wind gust tops 90 mph

Tuesday afternoon top wind gust reports are coming out of South Dakota, including:

Posted by Emilee Speck

Developing derecho packing powerful winds

The National Weather Service is tracking a developing derecho bringing significant wind gusts from central to eastern South Dakota into southwest Minnesota and northern Iowa tonight.

Here's the latest forecast and timeline.

Posted by Emilee Speck

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