May 7 Severe Weather

A Tornado Watch is now in effect for portions of southwest Iowa and will remain in effect until 8:00 PM tonight. A weak surface low is positioned over northeast Nebraska, and a warm front appears to be draped along eastern Nebraska and southern Iowa. Areas along and south of this warm front will see convective development within the next few hours. Similar to yesterday, any storms which may be able to make a southward turn will enhance their shear values and be able to produce a tornado or two. The main threat with storms as they move east/southeast will be to produce large hail, up to 3 inches in diameter in the stronger supercells.

It does appear that initiation is beginning near the Missouri River near Omaha, NE. The tornado threat is expected to increase as the evening continues as more moisture is pulled northward and begins to lower the dew point depressions.