Heavy snow fell in New Castle County while lighter snow fell across Kent and New Sussex Counties from from the late evening of the 24th into the afternoon of the 26th. Snowfall averaged three to six inches in New Castle County and around one inch in Kent County. Most of the snow melted as it fell in Sussex County. Precipitation initially started as rain during the afternoon on the 24th in Sussex County and spread north during the evening and overnight on the 24th. As the intensity increased, the rain changed to snow in Sussex County late in the evening on the 24th and after 3 a.m. EST on the 25th in Kent and New Castle Counties. The snow ended during the morning of the 25th, but started again during the evening of the 25th in New Castle County and overnight in Kent and Sussex Counties. The snow ended in all areas during the early afternoon of the 26th. Aside for New Castle County, the snow never fell heavily in Delaware and had a hard time accumulating on roadways until the morning of the 26th in New Castle County. Thus the number of reported accidents was relatively low. There was one reported traffic accident injury in New Castle County. Winds increased before the heavier snow arrived and could not stick to trees as well. The number of power outages was much lower than with the previous winter storm. The strongest winds occurred between 6 p.m. EST on the 25th and 6 p.m. EST on the 26th.
Representative snowfall included 5.6 inches in Hockessin (New Castle County), 4.7 inches at the New Castle County Airport, 4.5 inches in Newark (New Castle County) and 1.1 inches in Viola (Kent County). Peak wind gusts included 51 mph in Lewes (Sussex County), 50 mph in Dover (Kent County), 48 mph in Sandtown (Kent County), 44 mph at the New Castle County Airport, 43 mph in Milford (Sussex County) and 40 mph in Georgetown (Sussex County).

This last winter storm concluded a record breaking and unprecedented month for snow in February across Delaware. At the New Castle County Airport, the 46.9 inches of snow that fell in February 2010 was the snowiest February and month on record.  In all, 72.7 inches of snow fell this season at the New Castle County Airport and was the snowiest season on record. The previous record was 55.9 inches set in 1995-6.
The winter storm was caused by a low pressure system that formed east of Florida on the 24th. At 7 a.m. EST on the 25th, it (992 millibar low pressure system) was well east of the North Carolina coast and was intensifying rapidly as it was moving north. At 1 p.m. EST on the 25th, it was a 987 millibar low well east of the Delmarva Peninsula. At 7 p.m. EST on the 25th, it was a 978 millibar low just east of Long Island. At 10 p.m. EST on the 25th, it deepened to 972 millibars and was located along the Rhode Island and Massachusetts border. From there, a rare occurrence happened as the low pressure system retrograded or move westward. At 1 a.m. EST on the 26th, the 972 millibar low was in Connecticut; at 7 a.m. EST it weakened to 979 millibars and was over New York City. It spent the rest of the daylight hours weakening over the New York City area and then drifted slowly north that night. The retrogression process brought the heavy snow into New Castle County on the 26th.

Winter Storm in NEW CASTLE, DELAWARE
From 25-FEB-10 05:00:00 to 26-FEB-10 13:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in KENT, DELAWARE
From 25-FEB-10 02:00:00 to 26-FEB-10 13:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter