The stage is being set for a major nor'easter to affect parts of the Northeast US Monday through Wednesday, January 26 - 28, 2015. This system, named Winter Storm "Juno", will be responsible for heavy snowfall and strong winds, with blizzard conditions possible along coastal areas from New Jersey to Massachusetts.
New York City Mayor Bill de Blasio warned it could be one of the biggest storms the city has ever seen.
"Do not underestimate this storm, assume conditions will be unsafe and that you do not want to be out in this storm. When you can stay indoors, stay indoors. When you can stay off the roads, stay off the roads. Use mass transit, or make plans to travel another day. Try, with everything you have, to avoid being in the middle of this storm," de Blasio said.
Peak impacts are expected late Monday through Tuesday night.
Blizzard Warnings are in effect along the coast from central New Jersey to the Canadian border.
Over 3 000 US flights scheduled for Monday and Tuesday have already been canceled.
According to NWS Short Range Forecast Discussion issued 20:14 UTC on January 25, storm over the Ohio Valley/Tennessee Valley will move off the Carolina Coast and deepen rapidly by Monday night.
The storm center will remain just offshore while moving northeastward to south of Cape Cod by Tuesday morning.
The system will produce snow over parts of the Ohio Valley into parts of the Central Appalachians Sunday evening. Moderate snow will develop over parts of Northern Mid-Atlantic by Monday morning moving to the immediate New England Coast with light snow over parts of the Mid-Atlantic/Central Appalachians by Monday evening.
Moderate to heavy snow will develop over New England and the Northern Mid-Atlantic Coast by Tuesday morning.
In addition, rain will develop over parts of the Tennessee Valley that will move to the Southern Mid-Atlantic Coast and parts of the Southeast Coast by Monday morning. The rain will become light to moderate over parts of the Northern Mid-Atlantic Coast by Monday evening before changing over to snow overnight Monday.
Meanwhile, a fast moving system over South-Central Canada will move southeastward to the Western Ohio/Tennessee Valley by Tuesday morning.
The storm will produce light snow over parts of the Upper Great Lakes on early Monday morning to Monday evening tapering off to a small area of snow over parts of the Southern Appalachians by Tuesday morning.
Additionally, upper-level low off the West Coast of Mexico will move northward to Southern California by Tuesday.
The low will pull moisture off the Gulf of California into Southern California producing light rain over parts of the Southwest, Great Basin, and Southern California Monday evening into Tuesday morning. Light snow will also develop over some of the higher elevations of the Sierras on Tuesday morning. Elsewhere, approaching Pacific front and weak onshore flow will produce light rain over parts of the Pacific Northwest Monday evening into Tuesday.
Featured image: NWS / WPC forecast for January 27, 2015.