1.   As the front approaches the Ohio River and central Appalachians later in the day, storms may reach severe levels.

2.   A few storms could reach severe levels.

3.   A few storms may reach into western New York and northern New England later Tuesday.

4.   A few storms may reach severe levels.

5.   A few storms will reach into Arizona.

6.   A few storms could reach severe levels, armed with large hail, damaging winds or tornadoes.

7.   A few storms could reach severe levels, producing damaging straight-line winds and large hail.

8.   A few storms may reach severe levels, particularly in western Nebraska, where gathering warmth and moisture interact with a jet stream disturbance.

9.   A few storms may reach severe levels, spawning hail, damaging straight-line winds or tornadoes.

10.   A few storms will reach severe levels, with damaging straight-line winds and large hail possible.