Sunday, July 08, 2007
More Rain & Storms.....Severe Potential?

Were you able to dry out over the weekend? The rainfall quickly went down, but the heat index rose quickly thanks to dewpoints in the 70s! I don't expect the semi-dry weather to stick around though. A developing trough to our north will send us more rain chances starting on Tuesday, and will likely last through Friday.
I do think we need to watch for potentially strong to severe storms for Tuesday afternoon and evening. Here's the situation. A pre-frontal trough is forecast to move in by Tuesday, and this will likely act as our "lift" mechanism to initiate scattered showers and storms by the afternoon and evening. A trough is unique because the air aloft is generally cooler, so the atmosphere should become unstable toward the afternoon as the surface heats up.
We'll see a mix of clouds and sun with dewpoints back in the upper 60s and lower 70s. I think CAPE values will quickly climb between 2000 and 3000 J/KG, providing chances for hail and strong gusty winds. Some wind shear will be present within the atmosphere, so storms could support larger hail, especially with strong rotating updrafts across eastern Oklahoma.
Posted by Drew Michaels at 3:33 PM
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