UPDATE: Tornado watch issued for three southern Oklahoma counties

A tornado watch has been issued for southern Oklahoma. Three counties are under a watch until 7 p.m. Tuesday
FROM STAFF REPORTS Modified: May 21, 2013 at 11:39 am •  Published: May 21, 2013

10:55 a.m. A tornado watch has been issued for several counties in southern Oklahoma, the National Weather Service reports. Watches are in effect for Love, Bryan and Marshall counties until 7 p.m., the weather service reports. Check NewsOK.com for weather updates.

6:05 a.m. A severe thunderstorm warning has been issued for western Cleveland County in central Oklahoma, the National Weather Service reports. The warning covers areas in northwestern Garvin County in southern Oklahoma, central Grady County and McLain County until 6:30 a.m. A line of thunderstorms is moving east at 45 mph. Check NewsOK.com for updates.

5:45 a.m. A severe thunderstorm warning has been issued for southeastern Caddo County, northeastern Comanche County and central Grady County in southwestern Oklahoma Tuesday morning. The warning is in effect until 6:15 a.m. Storms are moving northeast at 30 mph, the National Weather Service reports. Winds up to 80 mph are possible. The storm is moving toward the Norman and Moore area. Check NewsOK.com for weather updates.

5:05 a.m. A line of thunderstorms extends from Kiowa County in southwest Oklahoma to east central Oklahoma, the National Weather Service reports. Check NewsOK.com for weather updates.

4:45 a.m. A severe thunderstorm watch has been issued Tuesday morning for most of the southern half of Oklahoma, including parts of south Oklahoma City and the Moore area in Cleveland County hit by the Monday tornado, the National Weather Service reports.

The watch for areas south of Interstate 40 from southwest to southeast Oklahoma is in effect until 7 a.m. Heavy rain is possible with winds up to 80 mph. Baseball-sized hail is possible with a threat of more tornadoes, the weather service reports.

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