Wednesday, March 17, 2010

Sunday?

The longer range models are converging on a solution that shows a cold front pushing through the Mid-Atlantic on Sunday afternoon. The moisture return is weak with dewpoints only in the 50's, but the upper level winds at both 850 and 500 mb will be pretty strong so there will be a lot of forcing available. The one ingredient missing is a forecast for sunshine to allow the strong March sun to destabilize the lower atmosphere and initiate convection. If we could get a few peeks of sun Sunday afternoon the CAPE values would skyrocket and we might see a few decent boomers. The shorter range models will be chiming in by this time tomorrow, so I'll be keeping one eye on all possible forecast solutions and the other eye on both the SPC and the local NWS forecasts. I need a March chase to alleviate rampant SDS!!!

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