Wednesday, April 4, 2012

Wed. PM: Quiet & Comfortable

Synopsis:

A weak cold front is bringing a few showers to New England and a westerly flow aloft is bringing storms to the Carolinas from the same upper-level low that brought the severe weather and destructive tornadoes to parts of Texas yesterday. Today and tonight, the Commonwealth will be spared from any wet weather thanks to a ridge of high pressure centered in north-central Canada (yes, I said Canada). This high will slid south and east, controlling our weather for the rest of the week into the weekend.

Models used: 15Z SREFs, 12Z NAM & GFS

Short-term:

The ridge in Canada is unusually large, large enough to influence our weather from afar. There's also a vorticity minima stretching from International Falls, MNto the Atlantic Ocean east of New Jersey. Under clear skies and diminishing winds, the temperature should drop substantially overnight with more days of frost for those that make it into the 30s.

Long-range:

The high slides south then east and temperatures start to climb this weekend as a result of changing flow patterns and advection.

-Jaron Breen

P.S. We all hope that those folks in northeast Texas survived the destructive tornadoes that hit yesterday.

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