Tuesday, June 17, 2008

Convection Developing along outflow boundary

And it may glance the Triangle within the next hour or two. I am very surprised to see development out there this evening. We saw our dew points drop into the middle 50s earlier today but they have recovered back to the middle 60s which is more than sufficient to support some thunderstorms. They do not appear too strong but when the outflow comes over your area it may get quite windy. A special observation at RDU International Airport was just sent out reporting a thunderstorm and winds out of the SSW with a dewpoint of 66. At Chapel Hill, a thunderstorm was reported with North winds. There is definately a boundary in between these locations and I have a suspicion that these storms are being aiding by this wind convergence forcing air to rise. With dewpoints in the middle 60s there is some instability also to support them. Of course it will pour right over my house because I washed my car this evening thanks to some birds pooping on them today while I was parked on campus :(. Below are some radar images from GRAE2.. and one of them is a 3d look at the storm!





UPDATE: 12:18am

It is possible that one of the storm cells is might produce some hail or damaging winds. Radar is indicating some hail in NW Wake county.

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