Monday, February 15, 2010

Final Call on 2/15-16 System


Models coming into decent agreement this morning on this afternoon/tonight's storm being anything but significant for most folks south of the CT/MA border. Final calls on totals from south to north...

DC/Baltimore/Central & Southern Delaware/Southeast NJ: Trace to Coating (Mostly light rain)
Northern Delaware/Southwest NJ/Philly: Trace to 1"
North/West Suburbs of DC/Baltimore: Coating to 2"
North/West Suburbs of Philly: 1-2"
Central NJ (Trenton/New Brunswick): Trace to 2"
Northwest NJ (N & W of Parsippany): 1-4"
Allentown: 1-4"
Poconos: 3-7"
Northeast NJ/Westchester: Coating-2", iso higher amts north
NYC: Trace-1"
Long Island: Trace-Coating
Catskills: 3-7"
US 20-I-88 in NY/Binghamton/Albany: 3-6"
Syracuse/Utica: 1-4", higher amounts in favored lake enhancement areas southeast of Syracuse
I-95 Corridor in CT: Coating-2"
Hartford-Providence: 2-5" (iso higher amounts in higher terrain E of Hartford)
N Berkshires/S Greens/S NH: 6-12"
Cape Cod: Coating-3"
Boston South: 3-6"
Boston North/SE NH: 6-12"+
Heaviest snow falling north of Fitchburg, MA-Newton, MA line

That'll be a wrap on this storm.

Looking Further Out

In the longer range, the rains look on track to return to California next week, with a larger storm impacting in the Sunday-Tuesday timeframe. This translates into a couple of systems downstream as well. Before that, a weak (very weak) clipper system looks to swing through in Thursday-Saturday timeframe from NYC-South. Wouldn't expect much from that. A second system seems plausible early the following week, with perhaps slightly more moisture to work with. Then a third, much larger storm is likely late that week in the 26th-1 March timeframe. It's far too early to think about track and rain vs. snow vs. nothing. But, it would seem that either the system will get suppressed well into the Mid-Atlantic or Southeast by significant blocking still in place driving in cold air to the Northeast, or the blocking will relax enough to amplify the storm and create a bigger threat further north. At this time, I would not favor a major rainstorm, but this will need to be monitored because any significant rain would lead to flooding for someone.

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