Here's what we know about the winter storm that could develop this weekend
This storm setup looks like a traditional nor'easter (An A type storm) that we sometimes see roaring up the coast in the winter.
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All signs are pointing to a storm forming this weekend, and it could be a big one. But will this storm bring snow and wind to Connecticut?
This storm setup looks like a traditional nor'easter (An A type storm) that we sometimes see roaring up the coast in the winter. It can bring heavy snow, gusty winds and even coastal flooding to Connecticut. With storms like these, there have been some historic snowfalls. But the big question is, will it impact our area? Will this storm come right up the coast or pass safely east and go out to sea?
Let's dive into a little more.
TYPE “A” NOR’EASTER
These storms originate along the Gulf Coast, where an arctic outbreak through the middle of the country forces the jet stream south. The jet stream grabs moisture from the Gulf and develops a storm along the southeast coast. Once offshore, the low pressure strengthens into a nor’easter and tracks northward along the East Coast.
Once the storm is formed, the most critical feature of nor’easter forecasting is whether or not it passes the 40/70 Benchmark.
40/70 BENCHMARK
This point is defined as the intersection of 40 degrees North latitude and 70 degrees West longitude. It's out over the ocean, south of Cape Cod.
If the center of a nor’easter passes directly over this point, it is known as the “sweet spot” for major impacts along the Interstate 95 corridor from Washington, D.C., through New Jersey, New York City and New England with heavy snow and strong gusts.
If the nor’easter passes west of the benchmark, then the storm is too close to the coast, where it may be warmer and produce rain across the coast. This would push snowy impacts far inland
Regardless of the type of nor’easter, the track’s proximity to the 40/70 Benchmark determines the intensity of its impact on our area. It’s too soon to tell right now where exactly it’ll go, but this will come to light later this week.
