This story will be updated as more information becomes available. 

12:17 a.m. 

OU Campus Safety posted at 12:17 a.m. that heavy rain, gusty winds, lightning and small hail is still possible for the next 30 minutes.  

11:46 p.m. 

A tornado warning was issued for OU's Heath Sciences Center in Oklahoma City, according to an OU RAVE alert. 

11:26 p.m. 

A severe thunderstorm warning was issued for all of Norman to last until 12:15 a.m. The National Weather Service reported that wind gusts up to 80 miles per hour and up to quarter-sized hail are possible with this storm. 

An emergency alert sent at 11:30 p.m. by the National Weather Service advised to take shelter in a sturdy building and stay away from windows.

OU Nightly is live on Facebook tracking storms possibly heading toward OU's Norman campus. 

11:23 p.m. 

Strong winds are possible with storms heading toward Norman, according to an OU RAVE alert issued late Monday evening.  

11:05 p.m. 

A severe thunderstorm warning was issued for parts of Norman located west of Interstate 35 until 11:30 p.m. 

10:14 p.m. 

The tornado watch for OU Norman was extended until 1 a.m., according to an OU RAVE alert issued Monday evening. 

10:00 p.m. 

The OU and Norman area is expected to see severe weather between 11 p.m. Monday and 1 a.m. Tuesday, according to projections from the National Weather Service. 

5:18 p.m.

According to OU protocol, for students living in on-campus housing, all residence hall refuge areas will be activated when a tornado watch goes into effect. If a tornado warning is issued, students should proceed to refuge areas in Couch, Walker, Kraettli, Traditions East, Traditions West, Cross Village, the appropriate stairwells at David L. Boren Hall and Headington Hall and the basements at Headington College and Dunham College.

2:05 p.m.

A tornado watch was issued for parts of central Oklahoma as storms move across the state at 2:05 p.m. Monday. 

Norman and parts of central Oklahoma could see long-track tornadoes and up to softball size hail, according to the National Weather Service. 

The National Weather Service’s Storm Prediction Center upgraded central Oklahoma to high-risk potential and outcome for severe weather early Monday morning. 

According to tornado safety guidelines by the National Weather Service, the safest places to be are an underground shelter, an above-ground safe or a basement. If in a home or building, go to the lowest level, find a location surrounded on all sides by walls and use pillows or cushions to block flying debris. Vehicles, mobile homes and outdoors are the most dangerous locations to be.

The Norman Police Department has an emergency notification system for residents, which will be utilized to send severe weather updates. Sign up for those alerts here. 

In the event of a tornado, OU will use the OU RAVE alerts system. Sign up for OU RAVE here. For a full list of OU-related protocols and procedures, refer here. 

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