Monday, April 4, 2011

Strong cold front brings strong winds & chance for strong/severe thunderstorms this evening/ tonight. Ahead of the front, steady southwest winds bring plenty of warm air during the day today. This along with an increasing sun angle will put temperatures in the low 70s...falling a few degrees short of record high temps for today.

Cold frontal boundary will cross the Ohio Valley this evening. As that boundary progresses eastward, a dryline stretches from Texas, across the Mississippi River, past the Great Lakes and into northeastern US. Ahead of that, cells of strong to severe thunderstorms will continue to fire off this evening and overnight into Tuesday morning. Tornado warnings, wind advisories and thunderstorm warnings have been posted across much of the Southern Plains and southeastern US today. For West Virginia, especially close to the Ohio River and along ridegetops we can expect gusts to 40 MPH.

We're expecting rain showers and any accompanying thunderstorms to hold off until dusk tonight. Up to three-quarters of an inch of new rainfall is expected. Temperatures will also stay on the warm side until the front passes in the early hours Tuesday. Overnight lows will be in the upper 30s across the area.

Low level moisture will stick around Tuesday morning. So along with some patchy morning fog, the threat of a leftover thunderstorm is still also a possibility Tuesday morning. Also a few mountain snow flurries may develop before sunrise Tuesday as that cold air sweeps into the area. Accumulation in those higher elevations will be around an inch or so. Highs Tuesday will in the the mid to upper 40s. Temps fall to around freezing Tuesday night.

Another weak disturbance will brush by our northern zones Wednesday. Temperatures will gradually rise into the upper 60s & low 70s through the rest of the work week. But another series of short wave disturbances will bring chance rain showers and isolated thunder by the end of the work week.