Convective Discussion
Isolated thunderstorms associated with a warm and humid airmass over New England will slowly propagate northward during the next day.
Technical Discussion
Surface ridge will prevail today across the region. A surface low south of New England will continue to push moisture, however with no trigger to speak of, surface-based instability will be limited to cumulus and perhaps a few towering cumulus. The Gray sounding from 12z showed some potential for CB’s but due to the incoming mid/High cloud cover coming in surface heating will not be sufficient.
Surface ridge will prevail today across the region. A surface low south of New England will continue to push moisture, however with no trigger to speak of, surface-based instability will be limited to cumulus and perhaps a few towering cumulus. The Gray sounding from 12z showed some potential for CB’s but due to the incoming mid/High cloud cover coming in surface heating will not be sufficient.
A frontal feature near James Bay, supported by very strong dynamics aloft, is producing organized clusters of thunderstorms this morning. This feature will drift southeastward during the next 24 hours or so bringing a slight risk of thunderstorms to western Labrador tonight.
Regional Impacts.
Atlantic Provinces: none
Marine waters: Isolated thunderstorms for Gulf of Maine possibly reaching Lurcher late in the forecast period
Couturier