Convective Outlook Valid for Today and Tomorrow

Thunderstorm Outlook for Today

 

Regional Impacts

Slight risk of a non-severe thunderstorm over westernmost NS this evening and after midnight.

 

Convective Discussion

Moisture associated with a weak low pressure area over the Gulf of Maine will continue to advance over the

southern Maritimes during the day. Bands of showers along with an isolated thunderstorm will be moving through

Fundy and Lurcher.

 

 

Thunderstorm Outlook for Saturday

 

For Saturday, Risk of non-severe thunderstorms over western and central Labrador.

 

 

Convective Outlook Valid for Today and Tomorrow

Regional Impacts

Nil.

 

Convective Discussion

No thunderstorms expected in the region today. Some isolated thundershowers over MRTM waters south of NS overnight tonight and into Friday morning.

 

Thunderstorm Outlook for Day 1

 

Thunderstorm Outlook for Day 2

 

Jeremy

Convective Outlook Valid for Today and Tomorrow

Thunderstorm Outlook for Day 1

 

No thunderstorms expected at this time. There is small chance of a lightning strike or two this afternoon over SE Labrador, GNP, and Green Bay-White Bay as the trough passes through.

 

Thunderstorm Outlook for Day 2

 

No convective activity expected for Day 2 at this time.

Convective Outlook for June 22nd and June 23rd, 2021

Thunderstorm Outlook for Day 1

 

Regional Impacts:

 

Potential for isolated non severe thundershowers today over much of the Maritimes with a potential for isolated severe cells over areas that become cloud free.  Main threat is heavy local downpours but strong winds and hail are also possible

 

Convective Discussion:

 

The cold front that caused much damage last night over Quebec and Maine is now over New Brunswick.  The area is quite cloudy which helps to inhibit severe cell growth but some areas may become cloud free and will be able to reach higher temps and hence become more unstable.  Strong jet over the area with an abundance of low level moisture and the trough to help kick things off.  Cloud free areas will be watched closely.  Areas with more cloud could still see convection with lower likelihood to become severe.

 

 

 

Thunderstorm Outlook for Day 2

 

No convective activity expected for day 2 at this time.

 

 

Barrie MacKinnon

 

Convective Outlook for June 21st and June 22nd, 2021

Thunderstorm Outlook for Day 1

 

Regional Impacts:

 

Risk of isolated thunderstorms this evening over northwestern New Brunswick with possible heavy showers and strong wind gusts.

 

Convective Discussion:

 

Instability over the Maritimes is quite low as a thermal ridge sits over the area at issue time.  The thermal ridge tracks east through the day and so instability increases slightly over the area this evening.  Prog tephis only showing around 100 J/kg this evening which is quite insignificant so only a risk of isolated thundershowers is expected.  The highest threat if thundershowers develop is local heavy rainfall as low level moisture is moderate.  Strong wind gusts below warning criteria is also possible.

 

 

Thunderstorm Outlook for Day 2

 

Barrie MacKinnon