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Sunday, August 18, 2019

Convective Outlook Valid for August 18, 2019

Convective Discussion.

Early morning convection across southwestern NB has weakened and will continue to weaken this morning. There were a couple embedded TSRA, but increasing stability will negate any more CBs. The only area where cells are possible are across ERN LAB. Adjusting the surface temp to around 26 from YYR gives close to 500 J/kg. A surface trough will act as a trigger this afternoon. Sat pix shows some decent clearing across the region as well. Precipitable water is fairly low, but freezing levels are low and the shear is modest at around 35 knots or so. Expect some gusty winds and possible small hail in a couple of the cells. Elsewhere no convection is expected in Atlantic Canada.

Regional Impacts.

Labrador: scattered TS this afternoon giving gusty winds and possible small hail for ERN regions.

Nova Scotia/New Brunswick/PEI/Newfoundland: nil.


Jeremy