Day 1 Severe Weather Outlook

Valid 041630Z – 051200Z


Isolated thunderstorms may occur today into tonight across parts of
California and the Southwest. Severe thunderstorms are not expected.

Thunderstorm chances throughout the forecast period will be tied to
an advancing closed low near the central California coast. Cooling
aloft has promoted enough destabilization to result in isolated
lightning flashes in southwestern California this morning, and
lightning-producing convection should continue to develop/spread
eastward through the forecast period with eastward progress of the
upper low. Vertically veering wind profiles may result in brief
updraft rotation as convection approaches the coast and interacts
with locally backed (and terrain-altered) surface flow, though the
overall risk of any severe weather is isolated enough to preclude

Farther east, an anticyclone over the Deep South has kept deeper
moisture/buoyancy confined to the central Gulf of Mexico while
continental, dry air persists across much of the central U.S. This
will preclude any appreciable thunderstorm risk through 12Z

..Cook.. 12/04/2019


Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.