Wednesday 8:20 a.m.
Today's video starts with satellite and radar views from earlier this morning and proceeds to the forecast that runs through the coming weekend.
Thunderstorms were plentiful yesterday. Fortunately, more of the storm's energy went into producing heavy rain instead of numerous tornadoes. Unfortunately, flooding was severe, and the Pensacola area of Florida was inundated by well over a foot of rain... enough water to produce more than 10 feet of snow. More rain, some capable of causing flooding, will hit the area from the Carolinas to New England between now and tomorrow. This map shows the ECMWF rainfall forecast for the period from last night until the end of the week.
There was a lot of lightning yesterday, as shown by this map for the period from 4 a.m. ET yesterday until just before 4 a.m. ET today.
Tropical Storm Colin is caught in the southern stream while the northern stream is helping to send unseasonably cool air out of central Canada.
Then, as the cold front arrives, there may be violent thunderstorms. This map shows the early morning SPC assessment of the severe weather risk on Sunday:
Farther east on Sunday, rain is likely to be more extensive, and there is a severe thunderstorm threat from the Middle Atlantic region on south.
With the second front, shower activity may be spotty at first as the system comes through Chicago on Saturday but could be wetter and more stormy than the first front by time it reaches the I-95 corridor Sunday.
A pocket of dry air covers most of the area from the Great Lakes to the back edge of the East Coast clouds. This suggests sunshine will be the rule across the Northeast until the next frontal system approaches later in the week.
Here is the severe weather outlook for today from the NWS Storm Prediction Center. Note at the bottom the population in each alert area is listed. Keep in mind that in any given severe weather situation, the number of individuals directly affected is far less than the number of people potentially threatened.