Convective Outlook Valid for June 28th, 2019 Day 2 Outlook

Convective Discussion for Friday, June 28, Day 2 Outlook

The upper trough that is digging over Quebec will move eastward tonight and will over the Maritimes on Friday. Mid level temperatures on Friday will drop a few degrees and more insolation is expected. In addition, an upper level jet over southern Ontario will move eastward over the western Maritimes on Friday. Heavy downpours of rain, small hail and wind gusts are possible

Regional Impacts

Maritimes…

New Brunswick, western Nova Scotia.

Newfoundland and Labrador…

None expected.

Stephen Hatt

Forecaster

ASPC

Convective Outlook Valid for June 27th, 2019

Convective Discussion

Conditions are generally unfavourable for convection over Atlanta Canada today. However, there is lots of instability and dynamics over the St. Lawrence River this morning that will slowly advect eastward. Over this region, there is a moist tongue of dew points in excess of 16 deg and warm temperatures of 20 deg or higher. There is an east-west 250 jet over southern Ontario and a north-south 250 jet extending from western Maine into eastern Quebec. There is also a digging 500 mb trough with diffluence ahead of it. There is a possibility that some cells with high precipitable water could creep into extreme northwestern New Brunswick later today giving heavy downpours.

Regional Impacts

Maritimes…
Western New Brunswick.

Newfoundland and Labrador…
Slight risk western Labrador.

Stephen Hatt

Forecaster

ASPC