NAM Model showing low pressure to our east on Thursday, and a new cooler airmass behind it

The trend of temperatures slowly rising each day will reach a plateau of sorts on Wednesday, as the high pressure and mid level ridge responsible for the warming begin to get shunted to our east. The culprit is a rather strong mid level disturbance to our west-northwest, which will make it's move towards the Great Lakes on Wednesday into Thursday. The strength and speed of the system will cause a breakdown in high pressure and the ridge of fair/warm weather in the atmosphere. A cold front will eventually sweep towards the region on Thursday. Luckily, it looks like our area will avoid heavy rain with this disturbance. The system is forecast to interact with the remnants (or tropical moisture) of Tropical Storm Sean well out in the Atlantic Ocean, but not until it's farther east of our area. The result will be the potential for some moderately heavy rains over Southern New England--our area should be spared the heavy stuff, although a brief period of heavy rain is possible across Long Island. Otherwise, spotty showers will be the only introduction to the new airmass that is coming this weekend. Prior to this, however, we will salvage one more day on Wednesday. Prior to the breakdown, the warm airmass will still be in place, and high temperatures on Wednesday will once again reach into the middle 60's. Enjoy it while you can!


Today (Wednesday): Partly sunny. High near 66. Southeast winds 5 miles per hour. The last warm day of the week before an approaching cold front. Take it all in!

Wednesday Night: Increasing clouds, with a 30% chance of showers.. Low near 52. Southeast winds 5 miles per hour.

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Article written by JH. Published November 9th, 2011 at 12:30am. Looking for a forecast? Use our new Forecast Beta tool to see the latest forecast in your specific area for the upcoming work week, or view our Technical Forecast Discussion for the more serious weather enthusiasts. Also, check out our new Forecast Overview tab. For up to the minute details on forecasts, watches, warnings, and alerts, follow us on Twitter and Facebook.