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Rain, possibly storms, approaching SNJ

Discussion: For this week, we’ll have mostly NW upper-level flow coming off the ridge that is currently establishing over the C US. The NW flow will be the result of the top of the ridge combining a split flow pattern into the E US. This kind of setup traditionally produces lower temperatures (relative to average) but stormier/unsettled conditions.

Today (Tuesday) we have the first disturbance approaching from the W/NW. You should notice that humidity is up from yesterday (Monday) with the unsettled S winds. Currently the best returns on radar (moderate-to-heavy rain) are in SCPA moving into SEPA and pushing towards SNJ. I see some lighter stuff is already into NNJ but nothing significant. NNJ should clear completely in a few hours. CNJ a bit longer. But it appears that today’s best storm dynamics are going to cross SNJ between about 4-8pm (from W/NW to E/SE). For this area, expect downpours, higher winds, and a good chance of embedded lightning.

The frontal boundary should then push to the S of NJ for Wednesday. While this should keep most rain and storms to the S of NJ, it will still allow NJ to become warm (80-90) with lingering elevated humidity making it feel even hotter.

Thursday looks like the next chance for rain and storms primarily during PM hours maybe a little into Friday AM. High pressure should then clear everything out and allow for a mostly clear and dry Friday afternoon through the weekend—highs near-80 and lows near-60. We can thank a progressive trough for that once this week’s more zonal pattern breaks and jams up. But given that the weekend could be under trough influence, you can never rule out some friendly clouds which is why I say mostly clear.

In English: Rain, possibly thunderstorms, should push through SNJ later today (between 4-8pm from W/NW to E/SE). For now some lighter activity is falling in NJ and will soon fall in CNJ. The most favored area of NJ for the storm action is SNJ. We’re then warm and humid but mostly clear Wednesday followed by an unsettled Thursday. Once that moves out (by Friday morning), the weekend looks great (warm, mostly clear and dry).

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