Tropical moisture from the remains of Isaac as well as a frontal system will start to impact southern Quebec today with showers developing at anytime. The showers will increase in coverage late today as low pressure slides across southern Vermont. The heaviest rain will be confined to New England where 1 to 2" (25-50mm) are expected. Those amounts will taper of sharply in Ontario and Quebec with no more than 13mm (0.5") expected at this time. The balance of the week will remain rather muggy with scattered showers and perhaps a thunderstorm. Temperatures will remain in the mid 20's for daytime highs and upper teens for overnight lows. The normal high/low for Montreal for this date is 22/11C (72/52F).
|Heavy rain floods neighborhoods just north of downtown Washington DC on Sunday night. More flooding is possible today as tropical moisture from Isaac hangs around. (Washington Post)|