Update at 2:30 a.m. EDT Tuesday:
Severe storms have diminished early Tuesday morning. However, severe storms will flare up again across portions of the Plains and Midwest on Tuesday afternoon.
Tornadoes broke out from Texas to Missouri with a deadly tornado moving through the town of Moore, Okla. This tornado has been preliminarily ranked as an EF4.
For pictures of severe weather from over the past few days, click here.
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These were live updates from May 20. All updates listed in Central Time. The liveblog is no longer being updated
11:36 p.m. CDT Monday: Golf ball-sized hail was reported east of Coryell, Texas
9:16 p.m. CDT Monday: Hail as large as baseballs has been reported just south of Little City, Okla.
7:44 p.m. CDT Monday: In a press conference, the mayor of Moore, Okla., said search and rescue operations will continue in the areas devastated by Monday's tornado despite nightfall.
7:40 p.m. CDT Monday: Hail the size of golf balls was reported in Maxwell, Ill.
7:29 p.m. CDT Monday: A tornado was reported in Hannibal, Mo.
7:14 p.m. CDT Monday: A funnel cloud was reported 3 miles west of Center, Mo.
7:07 p.m. CDT Monday: Storms capable of producing tornadoes are moving towards Benton, Madison and Washington counties in Ariz.
6:54 p.m. CDT Monday: Storms capable of producing tornadoes are moving towards Joplin, Mo., but the worst of the storms should stay south of the city.
6:15 p.m. CDT Monday: A thunderstorm wind gust tore the doors of a Walmart in Bowie, Texas.
5:45 p.m. CDT Monday: A tornado is reported to be on the ground in Blanket, Texas in Bron County.
5:31 p.m. CDT Monday: Tornado touchdown reported near Ringgold, Texas at Clay and Montague County line.
5:11 p.m. CDT Monday: Storms capable of producing tornadoes are over northern Clay County, Texas.
5:03 p.m. CDT Monday: No significant damage from the tornado that moved through Nowata County, Okla., police said.
4:54 p.m. CDT Monday: Norman, Okla., National Weather Service designates tornado that moved through Newcastle, Okla., a preliminary damage rating of at least EF4. An estimated path length of 20 miles spread through Newcastle, Moore, and south Oklahoma City.
4:48 p.m. CDT Monday: Unconfirmed report of a tornado in Brown County, Texas.
4:38 p.m. CDT Monday: Police confirm: Large tornado on the ground in Nowata County. Tornado expected to cross highway 169 just south of Nowatta.
4:32 p.m. CDT Monday:
432pm - TORNADO just NW of Pauls Valley will cross I-35 south of Paoli. DO NOT DRIVE into this area!!!!!!! #okwx— NWS Norman (@NWSNorman) May 20, 2013
4:28 p.m. CDT Monday: Police confirm tornado on the ground in Washington County, Okla., east of Ramona.
4:24 p.m. CDT Monday: Police confirmed a tornado touch down between Barnsdall and Ramona, Okla. Storm now northeast of Ramona.
4:13 p.m. CDT Monday: Law enforcement reports a funnel cloud approximately 5 miles northeast of Lake Brownwood in Brown County, Texas.
4:11 p.m. CDT Monday: Police report that Briarwood Elementary School in Oklahoma City is unstable and could collapse. Emergency officials helping to get people out of the building.
3:59 p.m. CDT Monday: The storm that produced a tornado in Moore, Okla., may produce another tornado south of Choctaw, Okla., and southwest of McLoud.
3:57 p.m. CDT Monday: A storm north of Tulsa, Okla. is capable of producing a tornado. It has a pronounced hook echo on radar which indicates possible tornado.
3:51 p.m. CDT Monday: Hail as large as 4.25 inches reported in Osage County, Okla.
3:48 p.m. CDT Monday: While the tornado is no longer on the ground in Moore, Okla., storms in the area are still capable of producing tornadoes.
3:47 p.m. CDT Monday: Cars piled up on top of I-35 behind the freeway in Moore, Okla.
3:37 p.m. CDT Monday: Oklahoma City police report people trapped under debris at Wellston Elementary School.
3:26 p.m. CDT Monday: Police cannot get to Briarwood Elementary School due to all the debris on 149th Street in Santa Fe, Okla. Large gas leak at Elementary school on 149th street reported.
3:22 p.m. CDT Monday: Oklahoma City Police: "Powerline down near Santa Fe, near the school. Headed there to check on people."
3:22 p.m. CDT Monday:
322pm - the tornado is so large you may not realize it's a tornado. If you are in Moore, go to shelter NOW! #okwx— NWS Norman (@NWSNorman) May 20, 2013
3:16 p.m. CDT Monday: Tornado reported northeast of Duncan, Okla., near Highway 29 just west of Bray, Okla. according to Oklahoma County Sheriff and Fire.
2:53 p.m. CDT Monday: Police blocking off Indian Road, west of I-44 in Newcastle, due to tornado activity.
2:53 p.m. CDT Monday: Law enforcement reporting a tornado on the ground in Moore between Norman and Oklahoma City.
2:52 p.m. CDT Monday: A funnel cloud has been spotted between Norman and Oklahoma City.
2:51 p.m. CDT Monday: A storm north of Newcastle, OK, south of Oklahoma City, is capable of producing a tornado. Click here for radar.
2:49 p.m. CDT Monday: Golf ball-sized hail reported just north of Wichita Falls, Texas
2:15 p.m. CDT Monday: Thunderstorms erupting to the southeast of Oklahoma City, Okla., are heading to the downtown are in the next half-hour.
2:05 p.m. CDT Monday: Two severe thunderstorms south of Oklahoma City, Okla., are producing hail up to 1 inch in diameter.
1:05 p.m. CDT Monday: AccuWeather meteorologists are closely watching southeastern Oklahoma as storms begin to fire and keeping a close eye on potential in Missouri. Click here to view the regional radar.
Cooler weather and rain showers will be the resounding theme for Seattle this week.
Remnants of thunderstorms on the High Plains from Wednesday will re-fire farther east over the Mississippi Valley Thursday into Thursday night.
Building code changes in the wake of Hurricane Sandy are raising rebuilding costs for homeowners and other property owners while still attempting to mitigate future damages.
A cold storm will bring rain and snow to California Friday and Saturday, but heat returns again next week.
Following a cooldown at midweek for Cleveland, temperatures will remain below normal through the weekend.
Fairbanks, AK (1991)
Still two feet of snow covering the ground.
Fort Wayne, IN (1996)
58 mph wind gust.
Amarillo, TX (1997)
6.4" of snow.