Arctic Outbreak and Snow Update

Summary:

The next few days will feature the coldest weather we have seen so far, with daytime highs on Thursday and Friday in the low to mid-20’s. The cold weather will be capped off by snow Friday night into Saturday. As of now our region can expect a coating to 2″, with more possible on the North Shore.

Forecast:

Overnight tonight a cold front will pass through our area with some light snow/rain. Following the cold front passage, temperatures will begin to drop. Temperatures will continue to drop through the day on Thursday, and bottom out overnight Thursday into Friday with low’s in the lower teens. Friday will continue to feature weather in the 20’s.

This brings us to the storm late Friday into Saturday. Snow will begin in our area late Friday night or early Saturday morning. The snow will then mix with rain and eventually change to all rain on Saturday morning. There is some model disagreement over when the changeover will occur, the timing of which will have an impact on the total snowfall.

As of now my forecast is a coating to 2″ for most of Long Island, depending on when the changeover occurs some areas on the North Shore may see 3 or 4″.

Below are forecasted snow amounts from the latest model runs. Note that the EURO is not included which is in the 1-2″ camp for our region.

gfssnow12_14_18z nam_12_14_18z

gem_12_14_12z

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