Update at 7:10 a.m. CDT Monday:
This blog is no longer live, as the severe threat has ended across the Mississippi Valley. Detailed reports of the event can be found below.
Severe weather rumbled through parts of the Mississippi Valley Sunday through Monday.
Storms over the weekend blasted through places from Texas and Kansas to Illinois and central Michigan Sunday night, bringing damaging winds, hail and flooding downpours.
As of Sunday evening, more than 4,000 were without power across Kansas, as flight delays nationally topped 4,000.
After heavy rain fell across the Mississippi Valley Sunday and Monday morning, multiple areas experienced minor mudslides and some flooding. Across Wisconsin, several cars became stuck in flood waters on Monday morning.
While the severe threat subsided Monday morning, yet another storm will take aim at the Deep South through Monday evening.
For more information of the severe weather danger, please visit this news story.
6:50 a.m. CDT Monday: For the latest updates on the storm system, watch the morning edition of AccuWeather LIVE:
5:25 a.m. CDT Monday:
Event extended (time). Flash Flood Watch from 4/14/2014 4:23 AM to 4/15/2014 1:00 PM CDT for Talladega County.— Talladega County EMA (@readytalladega) April 14, 2014
4:15 a.m. CDT Monday: Law enforcement in Yazoo City, Miss., report that several streets are flooded in town.
3:30 a.m. CDT Monday: Overall, storms have weakened early this morning, but a line of gusty storms and heavy downpours remains just north of Jackson, Miss.
12:30 a.m. CDT Monday: A 48-mph wind gust was measured at the Pine Bluff Airport in Arkansas as strong storms rolled through.
11:30 p.m. CDT Sunday: Cars have stalled in flooding water on local streets in Oshkosh, Wis., reports the 911 call center.
11:00 p.m. CDT Sunday: A strong thunderstorm with gusty winds and heavy downpours is bearing down on Little Rock, Ark.
10:24 p.m. CDT Sunday: Heavy rain has caused minor mudslides near Boscobel, Wis., according to the 911 call center. The local airport has recorded 3.26 inches of rain in the past 24 hours.
9:18 p.m. CDT Sunday: A strong storm capable of producing a tornado is passing just northwest of Memphis, Tenn. Radar
8:40 p.m. CDT Sunday: 4.66 inches of rain fell in 24 hours, 4 miles north of Marengo, Iowa, an NWS spotter reported.
8:25 p.m. CDT Sunday: About 900 Oklahoma Gas & Electric customers were without electric service Sunday night, the utility reported.
8:20 p.m. CDT Sunday: Flight delays now total 4,100 and there are about 200 cancellations, FlightStats reported.
7:45 p.m. CDT Sunday: Law enforcement reports numerous flooded roads from West Little Rock, Ark., to Cammack Village to downtown Little Rock. Swift-water rescues were being conducted to free people stuck in their vehicles on flooded roads.
7:40 p.m. CDT Sunday: Widespread threat for damaging winds extends from central Missouri west of Columbia through eastern Oklahoma to far northern Texas near the Red River, AccuWeather.com Meteorologist Brian Edwards said. The line is tracking eastward and will affect Fort Smith, Ark., Columbia, Mo., and St. Louis during the next few hours.
"There can also be hail to the size of golf balls and isolated wind gusts to 75 mph in the strongest storms," he said.
6:45 p.m. CDT Sunday: More than 3,400 flights have been delayed with another 160 canceled, FlightStats reports.
6:30 p.m. CDT Sunday: Golf ball-sized hail fell 3 miles northeast of De Leon, Texas, fire department reports.
6:05 p.m. CDT Sunday: Confirmed tornado on the ground near Lone Tree, Iowa, law enforcement reported.
5:50 p.m. CDT Sunday: Tune into the latest edition of "AccuWeather LIVE" for the most current storm information.
5:30 p.m. CDT Sunday: Low clouds continue to cause delays at O'Hare airport, the FAA said.
5:00 p.m. CDT Sunday: More than 4,000 Kansas electric customers were without service, utilities reported.
4:55 p.m. CDT Sunday: Four buildings, including a church, were damaged a mile north of Pittsburg, Texas, emergency management reported.
4:30 p.m. CDT Sunday: 60 mph wind gusts reported at Caney, Kan., an NWS spotter reported.
3:50 p.m. CDT Sunday: Storms help contribute to more than 2,000 flight delays and more than 100 cancellations in the U.S., FlightStats reported.
3:35 p.m. CDT Sunday: More than 1,300 Westar Energy customers in Kansas are without power, the utility reported.
2:45 p.m. CDT Sunday: Delays up to 30 minutes starting at Dallas-Fort Worth International Airport due to thunderstorms, the FAA reported.
2:40 p.m. CDT Sunday: 3.5 inches of rain since 8 a.m. CDT at Woodburn, Iowa, Clarke County Emergency Management Agency said.
2:25 p.m. CDT Sunday: Low clouds causing up to one-hour delays at O'Hare International Airport, Chicago, the FAA reported.
2:18 p.m. CDT Sunday: Golf ball-sized hail fell a mile south of Atlanta, Kan., emergency manager reported.
1:41 p.m. CDT Sunday: Pea- to quarter-sized hail fell across Sedgwick County, Kan., NWS spotters report.
12:58 p.m. CDT Sunday: The temperature in Chicago dropped 10 degrees F in one hour. This time Saturday, the high was 71 degrees; now the temperature is 51 degrees F.
12:32 p.m. CDT Sunday: Quarter-sized hail was reported northwest of White City, Kan.
12:31 p.m. CDT Sunday: Concern is mounting for thunderstorms capable of spawning tornadoes to erupt across central Oklahoma.
12:22 p.m. CDT Sunday: The same storm system sparking the violent thunderstorms is dropping heavy snow across central Nebraska.
12:13 p.m. CDT Sunday Thunderstorm capable of producing damaging winds and hail was located near Hope, Kan., tracking toward Manhattan, Kan.
11:59 a.m. CDT Sunday Nickel-sized hail pounded an area 10 miles east of Burlington, Kan., according to a National Weather Service spotter.
11:39 a.m. CDT Sunday: Concern is mounting for severe weather to erupt in the near future across eastern Kansas.
It might feel more like late October rather than late May in the Northeast early Saturday morning as temperatures dip well below normal.
More clouds and cooler weather can be expected across the Bay Area through the holiday weekend and into the new week.
Another round of heavy rain and thunderstorms will move into the Plains over Memorial Day weekend, bringing the threat of flooding.
Cloudy skies and cooler weather will linger across the Los Angeles area through the holiday weekend and early in the new week.
Memorial Day marks the unofficial start to summer and summer warmth will dominate the Northeast next week, but that does not mean an end to shots of cooler air.
Showers and thunderstorms threaten to interfere with Memorial Day festivities across roughly two-thirds of the United States.
Late May snowstorm blanketed eastern part of state with 4 to 6 inches.
Washington, DC (1925)
Over $150,000 damage in Monroe and Pike counties from a thunderstorm downburst (originally thought to be tornadoes).