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Thursday, July 14, 2022

Convective Outlook valid for Today, and Tomorrow

Thunderstorm Outlook valid for July 14th, 2022.

 

Regional Impacts

Isolated non-severe thunderstorms are forecast today for areas in Labrador, western New Brunswick, and offshore over the slope waters.

 

Convective Discussion

Thundershowers are possible near the low centre in the Labrador sea and over the Big Land. In NB, thundershowers are also possible north of Fredericton this afternoon in an area of clearing already apparent on satellite. Dew points are moist enough to trigger surface convection, with CAPE values 500-700J/kg. The second part of the story is tonight as a shortwave trof swings into the humid airmass from the west near midnight. This is the dynamic feature that will cause nocturnal thunderstorms over the province, and parts of PEI. Pwats are near 30mm, and 0-6k shear values near 30kTs. The biggest hazard is pockets of heavy rain and lightning.

 

Thunderstorm Outlook for Day 1

 

Thunderstorm Outlook for Night 1

 

Thunderstorm Outlook for Day 2

*Thundershowers still possible along broad frontal feature stemming from Labrador low.

 

Forecaster: TIRONE