Tornado watch canceled across Md.

A tornado watch that had covered much of Maryland and the mid-Atlantic has been canceled, with wet but non-severe weather forecast the rest of Monday.

Heavy rain fell across much of the region as a squall line moved through about midday. A light steady rain was expected to continue into the afternoon hours.

Weather service forecasters had cautioned isolated tornadoes were possible in areas under the tornado watch. Though the sun's heating typically fuels summertime severe weather, heavy moisture in the air, especially for this time of year, was fueling instability in the atmosphere Monday as cooler, drier air more typical for fall moves in from the northwest.

The tornado watch area had stretched from northern Virginia across Maryland and Delaware into New Jersey, the Eastern half of Pennsylvania, and much of New York, including New York City. It was narrowed Monday afternoon to the eastern parts of that area as the line of storms continued to move northeast.

Highs are forecast in the upper 70s, but temperatures and humidity are forecast to fall significantly in the evening hours. Lows Monday night are forecast in the 50s.

Mostly sunny skies are forecast for Tuesday.. Highs are forecast in the lower 70s with lows in the 50s Tuesday. For the rest of the work week, highs are expected in the upper 60s with lows in the 40s, about normal for this time of year, and more rain is possible.

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