The National Weather Service has extended a winter weather advisory for parts of Delaware and New Jersey, warning of mixed precipitation and icy conditions until Tuesday (March 3) 9:00 AM EST.
This advisory was issued by the Mount Holly office of the National Weather Service.
Areas under advisory
The notice applies to:
-New Castle County, Delaware, including Wilmington
-Salem County, New Jersey, including Pennsville
Forecasters said mixed precipitation was expected with ice accumulations around the light glaze. Hazardous road conditions could affect the Tuesday morning commute.
Residents were urged to slow down and use caution when driving. Updated road conditions are available by calling 511.
The storm brings a wintry mix to the region
A weak storm tracked from the Plains into the Ohio Valley and Mid-Atlantic Monday night, bringing freezing rain and sleet to the Delaware coast and southern New Jersey, according to AccuWeather.
The wintry mix has also spread further north into western, central and southeastern Pennsylvania.
A second storm is forming
AccuWeather forecasters said a larger storm will develop Tuesday to affect parts of the Midwest and Northeast, while some parts of the region will continue to experience lingering snow, ice and rain.
The new system is expected to track further north, moving the heaviest snow and wintry mix toward the Great Lakes and inland to the northeast. Parts of upstate New York and central New England could receive 1 to 2 inches of sleet and sleet.
In Pennsylvania cities like Harrisburg, precipitation may start as sleet and freezing rain Tuesday morning before changing to rain later in the day as warmer air moves in.
Danger of flooding from ice jams
As temperatures rise, ice on streams and rivers in the Northeast — including parts of Pennsylvania — could begin to break up.
“Where the ice jams, there’s a risk of water levels rising quickly above the jams and then below where the jams break,” said Alex Sosnowski, senior meteorologist at AccuWeather. He warned that unprotected areas along flood-prone waterways could face localized flooding.
A change of pattern brings spring warmth
By mid to late week, a shift in the jet stream pattern is expected to bring milder conditions to much of the eastern United States.
AccuWeather said temperatures in cities such as Washington, D.C. and Philadelphia could rise 10 to 20 degrees above the historical average for early March by Thursday.
The storm’s active track across the Plains into the Great Lakes may send additional rounds of rain to parts of the Northeast, including Pennsylvania, depending on each system’s path.
Forecasters urged residents to monitor updated forecasts as conditions develop.
