Winter Storm Niko brought heavy snow, blizzard conditions and high winds to a swath of the Northeast during a brief, one-day siege on February 9, 2017.
Niko's intense snowfall, following record highs the previous day, prompted thousands of flights cancellations and numerous schools closed from parts of Pennsylvania, New Jersey and New York into New England.
After being classified as a named winter storm on Feb. 7, a stripe of snow blanketed parts of the central Plains and Ohio Valley, with generally light to moderate snow.
Around 2 inches of snow had fallen in Omaha, Nebraska, and in parts of the Des Moines, Iowa, metro area during the morning of Feb. 8. A stripe of northern Nebraska picked up heavier snow, led by 10 inches of snow in Ainsworth.
Wednesday afternoon, 2.1 inches of snow was measured at Indianapolis International Airport. By that evening, Dayton, Ohio, had picked up 1 inch of snow.
February 9th - Northeast
Niko quickly moved into the Northeast by early on Thursday, Feb. 9. Its rapidly-intensifying low pressure system raced from the Delmarva peninsula northeast into the Atlantic, well off the coast of Long Island and Cape Cod, but close enough to spread blizzard conditions inland.
Niko underwent "bombogenesis", which is defined as a drop in central pressure of the surface low of at least 24 millibars in 24 hours or less, off the Eastern Seaboard when it's pressure dropped 29 millibars in 24 hours. Pressure fell from 1002 millibars (mb) to 973 mb from 7pm Feb. 8 to 7pm Feb. 9.
This was the first blizzard in Boston since Jan. 27, 2015, which lasted 9 hours. In Providence, blizzard conditions were recorded for more than five hours.
Here is a sampling of the top and notable snow reports by state in the Northeast:
- Connecticut: 19.0 inches in East Hartford; 15.5 inches in Windsor Locks (Bradley Field); 10.3 inches in Bridgeport
- Delaware: 1.1 inches in Wilmington
- Maine: 24 inches near Cooper; 22 inches in Gouldsboro; 7.5 inches at the Portland Jetport
- Maryland: 12.3 inches in Redhouse; 9 inches in Oakland
- Massachusetts: 19.0 inches in East Longmeadow; 16.0 inches in Springfield; 12.9 inches in Worcester; 10.7 inches at Boston-Logan Airport
- New Hampshire: 17.0 inches in Nottingham; 16.5 inches in Merrimack; 15.0 inches in Litchfield; 8.0 inches in Concord
- New Jersey: 12.5 inches near Denville Township; 7.8 inches in Newark; 0.3 inch in Atlantic City
- New York: 18 inches in Feura Bush and Voorheesville; 14.3 inches in Islip; 11.2 inches at Albany Int'l Airport; 10 inches at La Guardia Airport; 9.4 inches in Central Park; 8.3 inches at JFK Airport
- Pennsylvania: 13 inches near Bear Creek; 9 inches in Mt. Pocono; 7.5 inches in Scranton-Wilkes-Barre; 7.1 inches in Allentown; 3.6 inches in Harrisburg; 2 inches in Philadelphia
- Rhode Island: 14.5 inches in North Foster; 11.9 inches at T.F. Green Airport near Providence
- Vermont: 12 inches in Wilmington; 1.6 inches in Burlington