The snowstorm of February 9 to 10, 2017

The Regional Snowfall Index is NOAA’s ranking of snowstorms east of the Rockies by how much snow fell, over how wide an area and on how many people, region by region: the area and the population above four snowfall thresholds set for each region, weighted against that region’s own history. A storm is scored in each region it reached, on a scale from 1, notable, to 5, extreme.

Events

294

Deaths

1

Injuries

8

Damage

$1.6 million

Episodes

41

Every winter weather episode the Weather Service filed east of the Rockies in these dates. A few may belong to another system on the same days. Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

• Heavy Snow and Winter Weather in Nebraska, February 7 to 8, 20178 eventsA fast moving storm system brought a narrow band of moderate snowfall to northeast Nebraska into western Iowa. The snow began during the evening on the 7rd and continued, moderate at times, overnight and ended during the morning on the 8th.
• Blizzard in Alaska, February 7 to 8, 20171 eventA frontal boundary pushed through the eastern arctic slope and produced blizzard conditions during the evening of the 7th into the 8th of February. zone 204: Blizzard and quarter mile visibility reported at Point Thomson AWOS. A peak wind of 40 kt (46 mph) was also reported.
• Winter Weather in Iowa, February 7 to 8, 20172 eventsA fast moving storm system brought a narrow band of moderate snowfall to northeast Nebraska into western Iowa. The snow began during the evening on the 7rd and continued, moderate at times, overnight and ended during the morning on the 8th.
• Winter Weather in Massachusetts, February 8, 20171 death · 8 injured · $750,000 · 5 eventsLow pressure wave developed east of Massachusetts along a warm front during the early morning of the 8th. This drew a surge of colder air across the Metropolitan Boston area during the early morning. The colder air combined with wet surface to create icy road surfaces.
• Winter Storm and Winter Weather in Ohio, February 8 to 9, 201725 eventsAccumulating snow fell over the region due to a rapidly moving upper level disturbance. A narrow band set up where heavier accumulations were found in west central Ohio.
• Winter Weather in Indiana, February 8, 20175 eventsA band of snow fell over the region due to a rapidly moving upper level disturbance.
• Winter Weather in Kentucky, February 8, 20173 eventsLight snow fell over the region due to a rapidly moving upper level disturbance passing north of the area.
• Ice Storm in Washington, February 8 to 9, 2017$700,000 · 4 eventsA Pacific frontal system combined with sub-freezing easterly flow across the Cascades passes and Fraser outflow brought a major episode of snow and freezing rain to the Cascades and Western Whatcom County.
• Heavy Snow in West Virginia, February 8 to 9, 20175 eventsLow pressure moving from the Lower Ohio Valley to off the Mid Atlantic states produced a swath of moderate to heavy snow across portions of eastern Ohio, western Pennsylvania, northern West Virginia, and Garrett county Maryland.
• Heavy Snow in Pennsylvania, February 8 to 9, 20175 eventsLow pressure moving from the Lower Ohio Valley to off the Mid Atlantic states produced a swath of moderate to heavy snow across portions of eastern Ohio, western Pennsylvania, northern West Virginia, and Garrett county Maryland.
• Winter Storm in Pennsylvania, February 8 to 9, 201722 eventsLow pressure formed along a stalled front just south of Pennsylvania and slid off the Mid-Atlantic coast before rapidly developing and pushing northeastward off the New England Coast.
• Heavy Snow in Maryland, February 8 to 9, 20171 eventLow pressure moving from the Lower Ohio Valley to off the Mid Atlantic states produced a swath of moderate to heavy snow across portions of eastern Ohio, western Pennsylvania, northern West Virginia, and Garrett county Maryland.
• Heavy Snow and Winter Weather in New York, February 9, 201718 eventsA low pressure system formed over the Tennessee Valley late on February 8. As this system tracked northeastward, it quickly strengthened, spreading moderate to heavy snow to the north of its track.
• Winter Storm and Winter Weather in Pennsylvania, February 9, 201712 eventsA strong cold front moved through the region with a temperature drop from the 50's and 60's all the way down close to freezing. Low pressure developed along the front with precipitation northwest of the boundary.
• Heavy Snow in Pennsylvania, February 9, 20177 eventsLow pressure tracked across Virginia during the morning hours of the 9th and to off the New Jersey Coast by the afternoon while intensifying. This low pressure system spread snow to northeast Pennsylvania and central New York from the early morning hours of the 9th until midday.
• Winter Weather in Maryland, February 9, 20175 eventsLow pressure passed by to the south, causing precipitation to overspread the area. Cold air was moving in during this time and this caused rain to end as a period of snow.
• Heavy Snow in New York, February 9, 20172 eventsLow pressure tracked across Virginia during the morning hours of the 9th and to off the New Jersey Coast by the afternoon while intensifying. This low pressure system spread snow to northeast Pennsylvania and central New York from the early morning hours of the 9th until midday.
• Winter Storm and High Wind in New Jersey, February 9, 201752 kt wind · 19 eventsA strong cold front moved through the region with a temperature drop from the 50's and 60's all the way down close to freezing. Low pressure developed along the front with precipitation northwest of the boundary. The precipitation changed to snow across most of the state.
• Heavy Snow in Vermont, February 9, 20173 eventsA low pressure system formed over the Tennessee Valley late on February 8. As this system tracked northeastward, it quickly strengthened, spreading moderate to heavy snow to the north of its track.
• Heavy Snow in Massachusetts, February 9, 20172 eventsA low pressure system formed over the Tennessee Valley late on February 8. As this system tracked northeastward, it quickly strengthened, spreading moderate to heavy snow to the north of its track.
• Heavy Snow in Connecticut, February 9, 20172 eventsA low pressure system formed over the Tennessee Valley late on February 8. As this system tracked northeastward, it quickly strengthened, spreading moderate to heavy snow to the north of its track.
• Blizzard and Winter Storm in New York, February 9, 201724 eventsLow pressure developed along a cold front over the Middle Atlantic early Thursday, February 9th. The low rapidly intensified as it moved off the Delmarva coast in the morning and then to the south and east of Long Island late morning into the afternoon.
• Heavy Snow in New Hampshire, February 9, 201711 eventsAn area of low pressure off the Delmarva Peninsula on the morning of the 9th intensified rapidly as it moved northeast through the Gulf of Maine during the day. The low brought heavy snow to all but Grafton and Coos Counties.
• Winter Storm in New Jersey, February 9, 20179 eventsLow pressure developed along a cold front over the Middle Atlantic early Thursday, February 9th. The low rapidly intensified as it moved off the Delmarva coast in the morning and then to the south and east of Long Island late morning into the afternoon.
• Winter Weather in West Virginia, February 9, 20173 eventsCold and moist air moving over the mountains caused snow along and west of the Allegheny Front.
• Winter Weather in Virginia, February 9, 20171 eventCold and moist air moving over the mountains caused snow along and west of the Allegheny Front.
• Blizzard and Winter Storm in Connecticut, February 9, 201715 eventsLow pressure developed along a cold front over the Middle Atlantic early Thursday, February 9th. The low rapidly intensified as it moved off the Delmarva coast in the morning and then to the south and east of Long Island late morning into the afternoon.
• Winter Storm in Massachusetts, February 9, 201721 eventsCoastal low pressure developed off the Mid Atlantic coast and passed southeast of New England bringing strong winds and heavy snow.
• Winter Storm in Connecticut, February 9, 20173 eventsCoastal low pressure developed off the Mid Atlantic coast and passed southeast of New England bringing strong winds and heavy snow.
• Heavy Snow in Maine, February 9, 201714 eventsAn area of low pressure off the Delmarva Peninsula on the morning of the 9th intensified rapidly as it moved northeast through the Gulf of Maine during the day.
• Winter Storm in Rhode Island, February 9, 20178 eventsCoastal low pressure developed off the Mid Atlantic coast and passed southeast of New England bringing strong winds and heavy snow.
• Winter Storm in Maine, February 9 to 10, 20177 eventsRapidly intensifying low pressure tracked from the Mid-Atlantic region toward eastern Nova Scotia during the 9th...then lifted to the Gulf of Saint Lawrence through the early morning hours of the 10th. Snow developed during the morning of the 9th.
• Winter Weather in Delaware, February 9, 20171 eventA cold frontal boundary moved through the region leading to a sharp downfall of temperatures from the 70's to near freezing in 24 hours. Light snow accumulations were noted in New Castle county along with some wind gusts across the state on the backside of the low.
• Winter Weather in Maryland, February 9, 20171 eventA strong cold front moved through the region with a temperature drop from the 70's all the way down close to freezing. Low pressure developed along the front with precipitation northwest of the boundary.
• Lake-Effect Snow in New York, February 9 to 10, 20172 eventsA northwest flow of cold air behind a departing low pressure system brought heavy lake effect snow to portions of north central New York from the late evening of the 9th to the morning of the 10th. Snowfall accumulations ranged from 7 to 14 inches.
• Lake-Effect Snow in New York, February 9 to 10, 2017$50,000 · 3 eventsA quick-hitting but intense band of lake effect snow brought a foot to a foot and a half of snow across portions of Wayne and Cayuga counties. Lake effect snow developed behind a departing coastal nor'easter as cold air spilled across the region on a northwesterly flow.
• Cold in West Virginia, February 9 to 10, 20171 eventArctic air briefly moved into the Upper Ohio Valley on the morning of the 10th, with temperatures in the single digits.
• Cold in Maryland, February 9 to 10, 20171 eventArctic air briefly moved into the Upper Ohio Valley on the morning of the 10th, with temperatures in the single digits.
• Winter Weather in Michigan, February 10, 20172 eventsA Northern Plains low pressure system moving quickly through the Upper Great Lakes produced freezing rain and some moderate snow over portions of north central Upper Michigan on the 10th.
• Heavy Snow in Washington, February 10, 20171 eventA frontal system brought heavy snow to the North Cascades.
• Blizzard and Winter Storm in Alaska, February 10 to 12, 2017$100,000 · 70 kt wind · 10 eventsStrong SSW flow aloft ahead of an occluded front on 2/10 brought snow, high winds, and even blizzard conditions to the Panhandle. As the front moved onshore on 2/11, warm air overrunning very cold air at the surface caused the snow to accumulate rapidly.

The snowstorm of January 5 to 8, 2017The snowstorm of March 12 to 15, 2017Snow nowEvery winter storm filed

NOAA NCEI Regional Snowfall Index, and the Storm Events Database for the episodes.