Stormfront Approaching

Jonathan Carr
By March 16, 2025 14:04

Stormfront Approaching

Discussion: A potent upper low has crawled across the US from W to E over the last few days…very dynamic with lots of vorticity and clashing air masses of varying temperature/moisture. At the lower levels, this has created quite the stormfront that you might have heard about in the news over the last 48-72 hours, especially the N gulf states.

The stormfront is now approaching New Jersey with impacts expected later this evening. The stormfront will not be as potent as it was for areas like Mississippi and Alabama yesterday/overnight. Instead, NJ is going to see more of a remnant stormfront rather than a fully charged one…but it should still bring significant impacts.

We’re (NJ) still on the hook for rain downpours and gusty winds, however issues like hail and tornadoes should be less probable. We’ve lost the craziest dynamics and the remnant stormfront will be pushing through NJ after loss of diurnal surface heating (after sundown).

After reviewing the latest short-range model guidance and live observations, it is evident that the stormfront is moving very slowly and it is hard to pin the exact hour that it will affect NJ. The best timing anticipation I can do is as follows: Knocks on WNJ’s door around 5-7pm this evening, pushes across NJ between 7pm and 10pm, and then clears away from ENJ after midnight tonight. Not seeing a shark temp crash after the cold front. It will certainly become drier and cooler behind the cold front but this week should still open up with mild conditions.   

In English: Expect S winds to continue building into this evening. Periods of moderate-to-heavy downpour should push into WNJ by 7pm, fill in through the rest of NJ from W to E between 7-10pm, and then exit ENJ after midnight. Rain and wind are all but guaranteed. Lightning, hail, and isolated tornadoes have a small non-zero chance on a localized/isolated basis. The most reasonable and realistic expectation is just a rainy/windy Sunday night with improvement for Monday and mild conditions building back to start the week. I’ll provide some radar obs updates this evening and get the weekly outlook out tomorrow once the rain and clouds clear by mid-morning. Have a great rest of your Sunday night and please be safe! JC

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Jonathan Carr
By March 16, 2025 14:04