NJ Wetter: Winter storm clock on show in 17 counties. As much as 20 cm of snow and sleet can fall within the Thursday storm.

The National Weather Service has issued a winter storm clock for 17 New Jersey counties before a storm is expected to drop 4 to 8 inches of snow and sleet in our area on Thursday and early Friday, along with a thick layer of ice in some areas.

The winter storm clock covers all of northern New Jersey, most of central New Jersey, and the western region of South Jersey. It is effective from early Thursday morning through Friday afternoon, with exact times varying from region to region.

ALSO: When does the snow start? Latest update on timing, track for ‘Slop-Fest’ winter storm

While a watch isn’t as urgent as a warning, it alerts local residents and officials that potentially dangerous winter weather is on the way. If forecasters remain confident that the storm will drop heavy snow, heavy sleet, or heavy freezing rain, the watch will likely be upgraded to an alert before the storm – the last in our long parade of February storms – arrives.

The National Weather Service was forecasting 6 to 8 inches of snow for parts of New Jersey and at least a few inches for the entire state on Thursday. Here is the latest forecast on the time and precipitation types.

The storm could be a “slop-fest,” said forecaster Nick Carr. “What we might see is an inch or two of snow at the front end and then an inch or two of sleet.”

Active storm warnings

Here’s a look at the winter storm warnings in each county as of late Tuesday afternoon:

Bergen County: Winter Storm Clock from 6:00 a.m. Thursday through 6:00 a.m. Friday. Forecasters expect 4 to 8 inches of snow in this area.

Burlington County: Winter Storm Clock from 4:00 a.m. Thursday through 1:00 p.m. Friday. Forecasters expect 3 to 6 inches of snow and sleet in the northwestern region of the county, as well as a tenth of an inch to a quarter of an inch of ice.

Camden County: Winter Storm Clock from 4 a.m. Thursday through 1 p.m. Friday. Forecasters expect 3 to 6 inches of snow and sleet in this area, and a layer of ice from a tenth of an inch to a quarter of an inch.

Essex County: Winter Storm Clock 6 a.m. Thursday through 6 a.m. Friday. Forecasters expect 4 to 8 inches of snow in this area.

Gloucester County: Winter Storm Clock from 4:00 p.m. Thursday through 1:00 p.m. Friday. Forecasters expect 3 to 6 inches of snow and sleet in this area, and a layer of ice from a tenth of an inch to a quarter of an inch.

Hudson County: Winter Storm Clock 6 a.m. Thursday through 6 a.m. Friday. Forecasters expect 4 to 8 inches of snow in this area.

Hunterdon County: Winter Storm Clock from 4:00 a.m. Thursday through 1:00 p.m. Friday. Forecasters expect 5 to 8 inches of snow and sleet in the northwestern region of the county.

Mercer County: Winter Storm Clock from 4 a.m. Thursday through 1 p.m. Friday. Forecasters expect 3 to 6 inches of snow and sleet in this area, and a layer of ice from a tenth of an inch to a quarter of an inch.

Middlesex County: Winter storm clock from 4am Thursday through 1pm Friday. Forecasters expect 3 to 6 inches of snow and sleet in this area, and a layer of ice from a tenth of an inch to a quarter of an inch.

Monmouth County: Winter Storm Clock from 4:00 p.m. Thursday through 1:00 p.m. Friday. Forecasters expect 3 to 6 inches of snow and sleet in the western region of the county, as well as a tenth of an inch to a quarter of an inch of ice.

Morris County: Winter Storm Clock from 4 a.m. Thursday through 1 p.m. Friday. Forecasters expect 5 to 8 inches of snow and sleet in the northwestern region of the county.

Passaic County: Winter storm clock from 6 a.m. Thursday through 6 a.m. Friday. Forecasters expect 4 to 8 inches of snow in this area.

Salem County: Winter Storm Clock from 4 a.m. Thursday through 1 p.m. Friday. Forecasters expect 3 to 6 inches of snow and a tenth of an inch to a quarter of an inch of ice in this area.

Somerset County: Winter storm clock from 4:00 a.m. Thursday through 1:00 p.m. Friday. Forecasters expect 5 to 8 inches of snow and sleet in the northwestern region of the county.

Sussex County: Winter Storm Clock from 4:00 a.m. Thursday through 1:00 p.m. Friday. Forecasters expect 5 to 8 inches of snow and sleet in the northwestern region of the county.

Union County: Winter Storm Clock 6 a.m. Thursday through 6 a.m. Friday. Forecasters expect 4 to 8 inches of snow in this area.

Warren County: Winter Storm Clock from 4:00 p.m. Thursday through 1:00 p.m. Friday. Forecasters expect 5 to 8 inches of snow and sleet in the northwestern region of the county.

Snow forecast maps

NJ Weather - snow forecast updated for 2-18-21

This is the National Weather Service’s early snow forecast for most of New Jersey, eastern Pennsylvania, Delaware, and eastern Maryland for Thursday’s winter storm.National weather service

NJ Weather - snow forecast updated for 2-18-21

This is the National Weather Service’s early snow forecast for northeast New Jersey, New York City, Long Island, and the Hudson Valley for Thursday’s winter storm.National weather service

Ice forecast

NJ Weather - snow forecast updated for 2-18-21

This is the National Weather Service’s early ice accumulation forecast for parts of New Jersey, eastern Pennsylvania, Delaware, and eastern Maryland for Thursday’s winter storm.National weather service

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Len Melisurgo can be reached at [email protected]

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