A couple of severe storms are possible Sunday as a subtle shortwave trough moves into the Central Appalacians. As it does so, a nearly stationary front will sit across the area and spark a round of severe storms. Air soundings for Sunday afternoon show a very steep low-level lapse rate and dew points well into the 60s.

What worries me is the perpendicular nature of the sheer in the atmosphere tomorrow--- that is, at the low-levels in the atmosphere, air will be flowing northeastward, while at the upper levels, air will be traveling southeastward. This perpendicualr nature of sheer allows thunderstorms to rotate, and produce hail and tornados. While a widespread severe weather event is not likely, if enough sun is able to destablize the atmosphere in the morning and early afternoon, a couple of storms may warrant warnings.

If storms do get going, 4-9pm would be time periodto watch... good news for folks heading out to watch the Nats try to win 6 straight at 1:35.



Another important issue is the heat--- temperatures will climb well into the 90s, and may even touch 100 on Wednesday. Heat advisories will likely be issued.