 at about 30 miles an hour. For your safety, stay inside and away from windows until the storm passes. Large hail and strong winds can easily shatter glass, causing injury. If you're caught outside, take shelter in a sturdy building or a hardtop car. Take shelter now. Again, a severe thunderstorm warning continues until 2 a.m. this morning for Sarpy and Cass counties. Remember, this storm has the potential for penny-sized hail and wind gusts to 60 miles an hour. Stay tuned for additional updates.