NAM Model showing low pressure developing well to our northeast (Blue dot is NYC)

Usually when cold fronts cross our area in the fall or spring, they can bring some pretty dramatic temperature differences as well as some fairly heavy precipitation. You probably remember the strong fall cold fronts of the past, bringing in winter-like air with a period of very heavy rain. Thursday's front, however, will have all of it's thunder stolen by Tropical Storm Sean which is currently spinning out in the Atlantic Ocean. How does this happen? Essentially, the moisture which would normally feed along or ahead of the cold front is involved in Sean. The interaction between this tropical disturbance and the mid level disturbancing kicking the cold front through will eventually produce heavy precipitation--but it will likely be to the east of our area. This precipitaiton is forecast to develop over Eastern New England Thursday Night into Friday, and may clip parts of Long Island. In fact, by Friday, a very strong cyclone is forecast to develop near Maine as the mid level disturbance over the Northeast interacts with Sean. Over our area, periods of drizzle and light showers are possible on Thursday, but it looks like we're going to avoid any moderate to heavy precipitation. Cold air will move in behind the front, bringing breezy conditions on Friday and Saturday...especially with the storm rapidly deepening to our northeast.


Thursday: Mostly cloudy with a 50% chance of showers. High near 62. Total rainfall less than 0.10".
 
Thursday Night: Mostly cloudy with a 30% chance of showers. Overnight low near 41.

Article written by JH. Published November 10th, 2011 at 12:51am. 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.