Regional Impacts…
Today
NB/NS/PEI: A chance of severe thunderstorms bringing heavy rain, hail and strong wind gusts.
NL/Labrador: None.
Tonight
NB/NS/PEI/NL/Labrador: None
Wednesday
NB/NS/PEI/NL/Labrador: None
Convective Discussion
Low-level moisture advection continues this morning ahead of a cold front which will move across northern New Brunswick this afternoon and into southern New Brunswick this evening. Dew point temperatures in the low 20s are occurring throughout most of the Maritimes. The combination of this warm, moist airmass and the approaching cold front should be sufficient to trigger severe weather across portions of New Brunswick, Nova Scotia and Prince Edward island this afternoon and into the evening. CAPE values of 1000-2000 J/kg and precipitable water values of up to 50 mm could produce very high rainfall rates in thunderstorms. Additionally, relatively dry mid levels and a low level jet near 30 knots will allow strong downdraft potential to exist. Effective shear of 30 to 40 knots means that some supercell storms could develop, leading to potentially damaging wind gusts. After the frontal passes tonight, quiet weather will return for a few days.
Thunderstorm Outlook for Today
Thunderstorm Outlook for Tonight
Thunderstorm Outlook for Tomorrow
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