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Friday, June 11, 2021

Convective Outlook Valid for Today and Tomorrow

Thunderstorm Outlook for Today

 

Regional Impacts

No thunderstorms forecast.

 

Convective Discussion

Cool northwesterly flow continues across the region under a 100+kt NWly upper Jet extending from James Bay to NS. Generally over the Atlantic provinces, Instability is limited to the lower levels with most morning soundings over the region showing two inversions, at 700mb and 550mb. Moisture is more prevalent over NF and Lab where multiple layers of cloud are analysed. Freezing levels have risen somewhat and are between above 2,000ft.

 

 

 

Thunderstorm Outlook for Saturday

An upper low will slide over central Labrador, and the cold air aloft will destabilize the airmass further. A sligh risk of thunderstorms is suggested by some of the forecast guidance.