10/04/11 After 13 days, a shift to the better...

On Sept 21, I wrote about a stalled out weather pattern that would set up over the east coast, now 13 days later, this extremely stubborn low that came with reinforcements will move on out of the picture later today.

A band of heavy rain set up over the Northshore this morning, producing flooding and up to 4" of rain. You can click the image below to see it add up.

Radar for Tuesday morning rain noting heavy thunderstorms.

Today's weather will be influenced by the low that is tracking off to the east this morning with scattered showers and thunderstorms possible throughout the day.

The pattern will change from the low over the northeast as seen on this map below.

The low is cut off from the main flow of the jet stream allowing for the same weather to repeat over and over again.

However, by Wednesday and into the weekend, a ridge of high pressure will replace this low and allow for a clear sky and comfortable temperatures, very seasonable for early October.

Same type of map as above, showing the high over the Great Lakes by the weekend. We will be on the east side of the high - indicative of cooler drier air from Canada (follow the small white arrows).

 

 

 

 

A cold air mass will be in place and with clear skies and calm conditions, a widespread frost and a freeze is likely outside of 128/95 Thursday night as temperatures will fall in the lower 30s and upper 20s in many locations.