7 things to know about this weekend’s icy mix

1. Introduction

The United States is in a hot mess now. Well, maybe I should say cold mess. Arctic air invaded everything except Florida and the southwestern desert. A strong winter storm in the middle of the country has generated alerts that extend from the Canadian border in Washington to the Mexican border in Texas. At least 33 of the 48 contiguous states have some type of alert, watch or winter notice in place on Saturday.

Warnings, clocks and weather alerts for the contiguous United States, starting on Saturday morning. (Essential climate)
High temperature forecast for Saturday, according to NWS NDFD. (Essential climate)

And that includes New Jersey, of course. As we discussed throughout the week, our next storm system is no incredibly powerful or well organized. And it will definitely not be a big snow generator for New Jersey. But it will reach a specific temperature profile that leads to an icy mixture of hail and freezing rain. And even a light cover of ice is enough to make conditions very slippery and treacherous.

We are also still tracking two more storm systems targeting New Jersey next week. There have been some interesting developments in the latest models.

2.) Time

-Begin… The precipitation of the winter mix will arrive from southwest to northeast between late Saturday morning (10am) and early afternoon (2pm)
-Impact… The strongest precipitation and the greatest threat to ice conditions will occur from late Saturday afternoon (3 pm) to late evening (10 pm)
-End… Adverse weather conditions are expected to improve gradually on Sunday morning (6am to noon)

The high resolution NAM model forecast for Saturday afternoon shows a winter mix of precipitation over NJ. Blue = snow, pink = hail, purple = freezing rain, green = rain. (College of DuPage Meteorology)

3.) Accumulations

-Snow… Up to an inch possible (although unlikely), especially in the far north.
-Ice… About a tenth of an inch for most of the state. Except for the far north and along the immediate coast.
-Rain… Up to 0.30 “of simple rain can fall, especially along the immediate coast.

4.) Impacts

Ice is an unpleasant business. Freezing rain, in particular, would be the worst case scenario here. Remember, it looks, feels, smells and tastes like normal liquid rain until it reaches a sub-freezing surface. Then it instantly freezes on solid ice. Instant skating rink.

GFS model forecast for Tuesday morning. This solution suggests that NJ will end up on the hot (rainy) side of the storm. (College of DuPage Meteorology)

I wouldn’t hang my hat on that prediction, as things may well go back to the cold side again. (Previous races have suggested double-digit and a half-inch snow accumulation of ice in New Jersey.)

In fact, it is a sign that this forecast is still of low confidence and quite complicated. Keep in mind that chaos theory dictates that the weather forecast game works best when facing one storm at a time. We’ll have better control next time, as soon as the weekend’s ice storm passes.

7.) The next storm

The grand finale of this hyperactive period of time is still scheduled for the end of next week, from Thursday to Friday.

And guess what. Like Tuesday’s storm, it is trending northwest and therefore rainier. Even so, the current model consensus describes some snow accumulation at the beginning. And with 5 days for the first flakes / drops, you can definitely come back again.

GFS model forecast for early Friday morning, when another storm system passes through New Jersey. Possibly another rainmaker? (College of DuPage Meteorology)

I remain very hopeful that we will get a break from the constant onslaught of significant storm systems starting next weekend. We may even see a brief (big) warming up at the end of next week. However, if you are looking for long term sustained heating, unfortunately you will have to wait until March.

Twitter for the latest forecasts and real-time weather updates.

TIME: Why this weekend’s potential ice storm is very worrying

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