Severe Thunderstorms And Flash Flooding This Evening

7:15 AM

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A cold front will slowly march towards the region today leading to a high threat for strong to severe thunderstorms and flash flooding over the region.  Ahead of the cold front through this afternoon look for humid conditions with clear skies to scattered cloud cover.  An isolated strong to severe thunderstorm is possible this morning through the early afternoon out ahead of the main line of showers and thunderstorms.  The thunderstorms will move through the region this afternoon from 4 PM on through 11 PM tonight.  These strongest thunderstorms will feature intense downpours, wind gusts over 60 mph, hail, and frequent lightning.  Flash flooding, wind damage, and visibility below a mile are a concern in this time period, which will impact the evening rush hour.  Winds will veer from the south to southwest at 10 to 20 mph.  Temperatures will rise into the mid to upper 70’s on Long Island, lower to mid 80’s on the coast, and mid to upper 80’s in the Delaware River Valley for highs this afternoon.

The cold front will exit tonight with a few lingering showers early tomorrow morning.  Scattered clouds are expected by day break on through tomorrow afternoon.  Winds will be from the southwest at 10 to 20 mph.  Temperatures will range from the upper 60’s for lows and mid to upper 70’s on Long Island and lower to mid 80’s for the rest of the region for highs.

Another cold front will move through the region on Wednesday with isolated to widely scattered showers and thunderstorms.  Winds will be from the southwest at 10 to 20 mph.  Temperatures will range from the mid 60’s for lows and upper 70’s to lower 80’s on Long Island lower to mid 80’s for the rest of the region for highs.

A series of cold fronts will follow Thursday and Friday with isolated to widely scattered showers and thunderstorms.  Otherwise, scattered clouds are expected through the forecast period.  Temperatures on Thursday will range from the lower to mid 60’s for lows and mid to upper 70’s on Long Island and lower to mid 80’s for the rest of the region for highs.  Temperatures on Friday will range from the upper 60’s to lower 70’s for lows and upper 70’s to lower 80’s along the coast and mid to upper 80’s in the Delaware River Valley for highs.

A slow moving cold front will produce widespread showers and thunderstorms on Saturday and Sunday with heavy rainfall a threat.  Temperatures on Saturday will range from the upper 60’s to lower 70’s for lows and upper 70’s to mid 80’s for highs.  Temperatures on Sunday will range from the mid 60’s for lows and mid 70’s to lower 80’s for highs.

High pressure will build into the region on Monday with scattered clouds.  Temperatures will range from the mid to upper 60’s for lows and mid 70’s to lower 80’s for highs.