Valid 021200Z – 031200Z
…NO SEVERE THUNDERSTORM AREAS FORECAST…
Severe storms are not expected across the U.S. mainland today.
…Pacific Northwest Coast…
Isolated thunderstorms might be ongoing at the start of this period
along a portion of the WA coast in association with steep lapse
rates and a leading vorticity maximum embedded within a progressive
synoptic trough. A secondary upstream shortwave trough will move
onto the WA and OR coasts this afternoon accompanied by a cold
front. The steep lapse rate environment should result in up to 250
J/kg MUCAPE through a sufficiently deep layer for isolated
thunderstorms along the front as it moves onshore.