The National Weather Service in Upton NY has issued a

* Snow Squall Warning for... Hudson County in northeastern New Jersey... Eastern Passaic County in northeastern New Jersey... Union County in northeastern New Jersey... Southeastern Bergen County in northeastern New Jersey... Essex County in northeastern New Jersey... Richmond County in southeastern New York... Bronx County in southeastern New York... Kings County in southeastern New York... New York (Manhattan) County in southeastern New York...

* Until 615 AM EST.

* At 512 AM EST, a snow squall was located over Boonton, or 8 miles northwest of Caldwell, moving southeast at 30 mph.

HAZARD...Intense bursts of heavy snow. Gusty winds leading to blowing snow and visibility rapidly falling to less than one-quarter mile. Wind gusts greater than 35 mph.

SOURCE...Radar and webcams.

IMPACT...Travel will become difficult and potentially dangerous within minutes.

This snow squall will be near... Caldwell and Fairfield around 520 AM EST. Bloomfield around 535 AM EST. Passaic and Lyndhurst around 540 AM EST. Secaucus and Kearny around 545 AM EST. Union City around 550 AM EST. Hoboken and Ridgefield around 555 AM EST. Midtown Manhattan and Lower East Side around 600 AM EST. Astoria and Brooklyn Heights around 605 AM EST.