Thunderstorm Outlook for Today, JUNE 4th.
A few non-severe thunderstorms are possible today in parts of New Brunswick.
Regional Impacts
Lightning will be the only expected hazard from any cells that develop.
Convective Discussion
A weak trough is pushing east this morning out of Quebec and the St Lawrence valley. Pwats are around 20mm today in NB and Maine, so a sub-warning rainfall amount of 15-20mm is forecast.
Thunderstorm Outlook for Day 2, JUNE 5th.
Widespread non-severe thunderstorms are forecast over a similar region in New Brunswick. Some more organized cells may produce wind gusts to 70km/h and approach severe limits with upwards of 25mm of rainfall. A watch may be required on Sunday.
Regional Impacts
Gusts to 70km/h are possible in central NB, as well as rainfall amounts near 25mm. Lightning will also be a hazard.
Convective Discussion
ML CAPE values are near 1000J/kg and 500-700mb differences at 18C. 0-6km shear across central NB is also near 30-35kts, so severe single cell storms are possible. Storm motion is slow at 5-10kts, and to the East.