The storm that produced multiple killer tornadoes early in the week transitioned to more of a flood-producing rain storm as it came into the East. This map shows some of the rainfall reports around the New York City - New Jersey area:
Here is today's video.
Just before 10 a.m., a line of showers was moving across west-central Pennsylvania.
During the next few days, there will be spotty areas or lines of showers that pop up from the Great Lakes and Ohio Valley eastward. However, the persistent, large-scale downpours are moving away.
Now, drier air has arrived, and most of the Northeast will have abundant sunshine today and tomorrow.
A front that will usher in slightly less humid air for the Northeast tomorrow will trigger locally strong thunderstorms today.
Thunderstorms will continue to erupt near the northern edge of the heatwave, enhanced by a series of disturbances rippling along in the upper air flow. This is the NWS Storm Prediction Center's severe thunderstorm outlook for today
... the main upper air steering current moves eastward across the northern Plains, then dives southeastward toward the Middle Atlantic states. The core of this current defines the rim of the hottest weather and serves as a conduit for clusters of thunderstorms.
3. Hot air will be moving east from the Plains, reaching the major East Coast cities Friday and Saturday. This map shows the upper-air flow that will make this happen.
This map shows lightning strikes from 8 a.m. EDT yesterday until 7:20 a.m. EDT today. A concentration of thunderstorms can be seen in the Midwest ahead of the cold front.