The snowstorm of January 4 to 9, 2010

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

1,258

Deaths

14

Injuries

109

Damage

$11 million

Episodes

137

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.

• Winter Weather in New York, January 2 to 4, 20109 eventsA powerful storm formed in the Gulf of Maine on Saturday, January 2nd and moved gradually westward toward the northern New England coast Saturday night into Sunday, January 3rd, bringing a widespread snowfall to east central New York along with blustery conditions, resulting in…
• Winter Weather in Massachusetts, January 2 to 3, 20102 eventsA powerful storm formed in the Gulf of Maine on Saturday, January 2nd and moved gradually westward toward the northern New England coast Saturday night into Sunday, January 3rd, bringing a widespread snowfall to the Berkshires, along with blustery conditions resulting in blowing…
• Cold in Louisiana, January 2 to 11, 2010$300,000 · 4 eventsArctic air invaded southeast Louisiana for an 8 day period in early January, bringing the coldest weather in over 20 years to much of the region.
• Heavy Snow and Winter Weather in Arkansas, January 2 to 4, 201033 eventsAn area of low pressure aloft, moving down from the northwest, triggered light snow across much of the northern half of Arkansas.
• Cold in Pennsylvania, January 3, 20102 eventsThe combination of strong northwest winds, an arctic air mass and temperatures in the single numbers produced wind chill factors of around fifteen degrees below zero during the first part of the day of the 3rd on the Pocono Plateau.
• Winter Weather in Connecticut, January 3, 20101 eventA powerful storm formed in the Gulf of Maine on Saturday, January 2nd, and moved gradually westward toward the northern New England coast Saturday night into Sunday, January 3rd, bringing a moderate snowfall to northern Litchfield County along with blustery conditions resulting…
• Heavy Snow in New York, January 3 to 4, 20102 eventsA nearly stationary area of low pressure off the New England Coast brought snow to portions of central New York State on January 3rd. The snow began in the morning and continued until midnight the 4th.
• Lake-Effect Snow in Michigan, January 3, 20101 eventAfter a brief respite, an intense lake effect snow band developed during the morning of the 3rd in eastern Grand Traverse County. Williamsburg picked up almost a foot of new snow by early afternoon.
• Winter Weather in West Virginia, January 3 to 6, 20103 eventsA cold front passed through eastern West Virginia. The combination of cold moist air moving over the mountains triggered a prolonged period of snow showers for locations along and west of the Allegheny Front.
• Lake-Effect Snow in Michigan, January 4 to 5, 20101 eventA northerly flow of colder air across Lake Superior generated heavy lake effect snow showers over portions of Marquette County on the 4th.
• Heavy Snow in West Virginia, January 4 to 6, 20101 eventWith low pressure stalled well north of the region, strong northwest winds helped to generate another heavy snow event across the higher terrain of western Greenbrier County West Virginia.
• Lake-Effect Snow in Michigan, January 4 to 5, 20102 eventsA band of heavy lake effect snow showers brought localized snowfall of 6 to 12 inches across the entire coastline of Van Buren county and also into extreme southwest Allegan county.
• Winter Weather in Kentucky, January 4, 201011 eventsFrigid temperatures combined with upslope flow over eastern Kentucky terrain, and a wave of energy aloft brought widespread snow showers to eastern Kentucky on January 4th.
• Winter Weather in Arkansas, January 4, 2010$15,000 · 2 eventsDuring the morning and early afternoon of the 4th, an area of low pressure aloft pushed across the ArkLaMiss region. There was enough cold air, and associated moisture, to bring about a mix bag of light freezing drizzle and light snow flurries.
• Blizzard and Heavy Snow in Alaska, January 4 to 5, 20105 eventsA 968 mb low near the central Aleutians combined with a strong ridge of high pressure across eastern Russia to produce blizzard conditions at Gambell on Saint Lawrence Island as well as at Cape Romanzoff along the Yukon Delta Coast.
• Winter Weather in Kentucky, January 4 to 6, 20102 eventsPersistent northwest flow off Lake Michigan led to one more round of upslope snowfall for Letcher and Martin counties on January 5th.
• Blizzard in Alaska, January 4, 20101 eventA strong storm and associated front produced snow and strong wind that resulted in a blizzard along the coast of the Kuskokwim Delta. Light freezing rain also occurred further inland of the coast in the Bethel area.
• Winter Storm in Montana, January 4 to 5, 20105 eventsA Pacific weather system brought moisture to North Central Montana where it interacted with cold air dropping south out of Canada. The resulting snow produced accumulations in excess of 6 inches at many locations.
• Winter Weather in Michigan, January 4 to 5, 20101 eventMoist cold air wrapping across Lake Superior helped generate moderate lake effect snow showers over portions of northern Houghton County from the evening of the 4th into the morning of the 5th.
• Heavy Snow in West Virginia, January 4 to 6, 20103 eventsA continuation of the cold northwest flow, mid level disturbances, and fluffly upslope snow showers, resulted in 6 to 14 inches of accumulation in about a 30 hour period from late on the 4th into early on the 6th.
• Winter Weather in Kentucky, January 4 to 5, 201012 eventsMoist northwest flow off Lake Michigan combined with terrain effects brought yet another round of light snow to eastern Kentucky on January 5th. The highest snowfall amount recorded occurred in Letcher county.
• Heavy Snow and Winter Weather in North Carolina, January 4 to 6, 20108 eventsAnother round of very cold and moist northwest flow resulted in development of scattered to numerous snow showers across the western mountains overnight on the 4th. The showers persisted off and on through the day of the 5th.
• Heavy Snow in West Virginia, January 5 to 6, 20102 eventsBroad low pressure swept cold moist air across the upper Ohio valley. Heavy snow fell across Garrett county Maryland as well as the ridges of northern West Virginia and Fayette county in Pennsylvania.
• Heavy Snow in Maryland, January 5 to 6, 20101 eventBroad low pressure swept cold moist air across the upper Ohio valley. Heavy snow fell across Garrett county Maryland as well as the ridges of northern West Virginia and Fayette county in Pennsylvania.
• Heavy Snow in Pennsylvania, January 5 to 6, 20101 eventBroad low pressure swept cold moist air across the upper Ohio valley. Heavy snow fell across Garrett county Maryland as well as the ridges of northern West Virginia and Fayette county in Pennsylvania.
• Winter Storm and Winter Weather in North Dakota, January 5 to 7, 201036 eventsAn upper level disturbance dropping south into the Northern Plains out of the Canadian Rockies, combined with a surface trough of low pressure, brought moderate snow accumulations and gusty winds to portions of west and central North Dakota from the morning of January 5th,…
• Winter Storm in South Dakota, January 5 to 6, 201016 eventsA storm system brought snow and gusty winds to the western South Dakota plains. Several inches of snow fell across the area, with wind gusts to 50 mph producing blowing and drifting snow. Visibilities were reduced to below a quarter mile at times.
• Winter Storm in South Dakota, January 6 to 7, 20108 eventsA strong Alberta Clipper low pressure system tracked southeast through the northern plains on Tuesday night, January 5th through Thursday, January 7th.
• Winter Storm and Extreme Cold in Nebraska, January 6 to 8, 20102 deaths · 90 eventsThis was the third winter storm in a month that hit eastern Nebraska and southwest Iowa and was caused by an upper level disturbance that dropped out of Canada and closed off over the central plains before moving off to the east.
• Winter Storm and Extreme Cold in Iowa, January 6 to 8, 201024 eventsThis was the third winter storm in a month that hit eastern Nebraska and southwest Iowa. An upper level disturbance dropped down out of Canada and closed off over the central plains before moving off to the east.
• Heavy Snow in North Dakota, January 6 to 7, 20105 eventsA mid level circulation moved from western North Dakota into eastern South Dakota. The reflection at the surface was an inverted trough, which mainly set up over the central Dakotas.
• Heavy Snow in Minnesota, January 6 to 7, 20101 eventA mid level circulation moved from western North Dakota into eastern South Dakota. The reflection at the surface was an inverted trough, which mainly set up over the central Dakotas.
• Winter Storm in Minnesota, January 6 to 7, 20102 eventsA strong Alberta Clipper low pressure system tracked southeast through the northern plains on Tuesday night, January 5th through Thursday, January 7th.
• Blizzard and Winter Storm in South Dakota, January 6 to 8, 201048 eventsNew snowfall varying from 2 to 8 inches, previous snow cover, and northwest winds gusting to over 40 mph combined to produce widespread blowing and drifting snow over all of southeast South Dakota.
• Blizzard and Winter Storm in Iowa, January 6 to 8, 201022 eventsNew snowfall varying from 3 to 8 inches, previous snow cover, and northwest winds gusting to around 40 mph combined to produce widespread blowing and drifting snow over all of northwest Iowa.
• Blizzard and Winter Storm in Minnesota, January 6 to 8, 201019 eventsNew snowfall varying from 4 to 10 inches, previous snow cover, and northwest winds gusting to around 40 mph combined to produce widespread blowing and drifting snow over all of southwest Minnesota.
• Winter Storm in Minnesota, January 6 to 7, 201010 eventsA strong winter storm developed across the northern Rockies Wednesday morning January 6th, then dropped east-southeast across the northern Plains and upper Midwest by Thursday morning.
• Winter Storm in Nebraska, January 6 to 7, 20107 eventsAn upper level trough of low pressure and strong arctic cold front brought snow accumulations ranging as high as 3 to 5 inches to eastern portions of north central Nebraska on January 6th, 2010.
• Blizzard and Winter Storm in Nebraska, January 6 to 8, 20104 eventsNew snowfall varying from 3 to 7 inches, previous snow cover, and northwest winds gusting to over 40 mph combined to produce widespread blowing and drifting snow in extreme northeast Nebraska.
• Winter Storm in Iowa, January 6 to 7, 2010$975,000 · 39 eventsThe third winter storm in a months time struck Iowa on the 6th and 7th. A cold airmass was in place over the central U.S. as a strong upper level trough approached from the northwest.
• Blizzard in South Dakota, January 6 to 7, 201018 eventsA strong Alberta Clipper low pressure system tracked southeast through the northern plains on Tuesday night, January 5th through Wednesday, January 6th.
• Winter Storm in Missouri, January 6 to 7, 201024 eventsOn January 6th and 7th 2010, a potent storm system moved across the region. This storm brought widespread snowfall of 3 to 6 inches to eastern Kansas and much of the northern half of Missouri.
• Winter Storm in Kansas, January 6 to 7, 20103 eventsOn January 6th and 7th 2010, a potent storm system moved across the region. This storm brought widespread snowfall of 3 to 6 inches to eastern Kansas and much of the northern half of Missouri.
• Winter Storm in Kansas, January 6 to 7, 20108 eventsA fast moving storm system tracked southeast across the Central Plains producing a swath of 3 to 6 inches of snow along with strong northwest winds.
• Lake-Effect Snow in Wisconsin, January 6 to 9, 20104 eventsA long lasting lake effect snow event affected much of the south shore of Lake Superior, with a general 6 to 12 inches of total snowfall. Localized amounts of up to 19 inches fell in Gile, with 14.5 inches falling in Oulu.
• Winter Weather in Missouri, January 6 to 7, 201020 eventsSnow fall of 3 - 5 inches fell from Central to Northeast and into East Central Missouri. Plus, winds gusting from 20 - 30 mph caused some blowing and drifting snow.
• Winter Weather in Illinois, January 6 to 7, 201011 eventsSnow fall of 3- 5 inches fell across parts of West Central and Southwest Illinois. Plus, winds gusting from 20 - 30 mph created blowing and drifting snow. Many rural roads were impassable due to the drifting snow.
• Winter Storm in Iowa, January 6 to 7, 201021 eventsA strong Alberta clipper dropped out of the northern Plains spreading snow across much of the region on January 6-7, 2010. Snow began across eastern Iowa during the afternoon of the 6th, before spreading east later in the evening.
• Extreme Cold in North Dakota, January 6 to 8, 201036 eventsAfter a winter storm that brought near blizzard conditions to western and central North Dakota moved out of the Northern Plains, dangerous wind chill conditions developed as Arctic high pressure pushed south across south central Canada and into the Northern Plains.
• Winter Storm in Iowa, January 6 to 8, 20103 eventsA low pressure system deepened and moved quickly across the central plains states during the evening hours of January 6th and the morning hours of January 7th. This spread snow across parts of northeast Iowa.
• Winter Storm and Winter Weather in Illinois, January 6 to 7, 20102 injured · 23 eventsAn area of low pressure tracking from the Plains northeastward into the Great Lakes brought a period of moderate to heavy snow to parts of central Illinois from the evening of January 6th through the morning of January 7th.
• Winter Storm in Illinois, January 6 to 7, 201013 eventsA strong Alberta clipper dropped out of the northern Plains spreading snow across much of the region on January 6-7, 2010. Snow began across eastern Iowa during the afternoon of the 6th, before spreading east later in the evening.
• Winter Weather in Oklahoma, January 6 to 7, 20108 eventsA very strong cold front moved through Oklahoma, beginning late in the afternoon over northwest Oklahoma, and continuing southeast through the late evening hours.
• Winter Storm in Missouri, January 6 to 7, 20102 eventsA strong Alberta clipper dropped out of the northern Plains spreading snow across much of the region on January 6-7, 2010. Snow began across eastern Iowa during the afternoon of the 6th, before spreading east later in the evening.
• Winter Storm in Wisconsin, January 6 to 8, 20104 eventsA low pressure system moved across the Central Plains States in the late evening hours on January 6th and the morning hours of January 7th. This spread moderate to heavy snow across portions of southwest Wisconsin.
• Winter Weather in Missouri, January 6 to 7, 20101 death · 3 injured · 11 eventsA low pressure center moved eastward across central Illinois and Indiana, bringing one to three inches of snow to southeast Missouri. Amounts varied from about an inch along and south of Highway 60 to as much as three inches in the Perryville area. U.S.
• Winter Storm in Illinois, January 6 to 8, 201010 eventsA winter storm moved across northern Illinois on January 7th. Snow began falling late in the evening on January 6th and continued into the morning hours of January 8th.
• Winter Weather in Illinois, January 6 to 7, 20103 injured · 14 eventsA low pressure center moved eastward across central Illinois and Indiana, bringing two inches of snow south of the Marion/Carbondale area and east of the Interstate 57 corridor. Isolated locations received three inches. Most schools were cancelled.
• Extreme Cold in South Dakota, January 6 to 8, 201026 eventsArctic high pressure combined with strong northwest winds resulting in extreme wind chills from 35 to nearly 50 degrees below zero across central and northeast South Dakota.
• Winter Storm and Winter Weather in Mississippi, January 7, 2010$70,000 · 17 eventsDuring the midst of the arctic outbreak, a weather system affected the ArkLaMiss region on the 7th and brought a mix of wintry precipitation. A mix of freezing rain, sleet, and light snow fell across the northern third of the forecast area.
• Winter Weather in Kentucky, January 7, 201022 eventsA low pressure center moved eastward across central Illinois and Indiana, bringing one to two inches of snow to western Kentucky. Amounts varied from about one-half inch along the Tennessee border to two inches along the Ohio River. Most schools were cancelled.
• Extreme Cold in Nebraska, January 7 to 8, 201016 eventsA bitter cold arctic air mass with temperatures in the single digits below zero combined with northwest winds of 25 to 35 mph during the early morning hours on January 7th.
• Winter Storm in Wisconsin, January 7 to 8, 20108 eventsThe only January 2010 winter storm of any consequence produced periods of moderate to heavy snow across most of south-central and southeast Wisconsin on January 7th. Total snow accumulations were mostly in the 6 to 12 inch range.
• Heavy Snow in Illinois, January 7, 20105 eventsA low pressure center moved eastward across central Illinois and Indiana, bringing about three inches of snow from the Marion/Carbondale area north to Mount Vernon. A few reports of four inches were received along the Illinois Route 13 corridor from Murphysboro to Marion.
• Winter Storm in Indiana, January 7 to 9, 20104 eventsA winter storm moved across northwest Indiana on January 7th and 8th. Snow began falling late in the evening on January 6th and continued into the morning hours of January 8th. Lake effect snow then began falling on January 8th and continued through the evening of January 9th.
• Winter Weather in Wisconsin, January 7 to 8, 20103 eventsThe winter storm that produced periods of moderate to heavy snow across most of south-central and southeast Wisconsin on January 7th, brought snow accumulations of 4 to 7 inches to portions of northern south-central Wisconsin.
• Cold in Kansas, January 7 to 9, 2010$4,000 · 2 eventsAn unusually cold Arctic airmass came across the area on January 6th and stayed through January 9th. This area has not seen a cold airmass like this since December 2005, and even February 1996 before that.
• Winter Weather in Arkansas, January 7, 20101 eventA strong arctic cold front brought a wintry mix of precipitation to the Mid-South. Snow, freezing rain and sleet fell in association with the front creating treacherous road conditions. Numerous accidents occurred as a result.
• Winter Weather in Missouri, January 7, 20101 eventA strong arctic cold front brought a wintry mix of precipitation to the Mid-South. Snow, freezing rain and sleet fell in association with the front creating treacherous road conditions. Numerous accidents occurred as a result.
• Winter Storm and Winter Weather in Indiana, January 7, 20102 deaths · 12 injured · $60,000 · 10 eventsStrong upper level low pressure continued to strengthen as it moved toward and into Indiana from the west on the morning of January 7th.
• Winter Weather in Indiana, January 7, 20106 eventsA low pressure center moved eastward across central Illinois and Indiana, bringing two to three inches of snow to southwest Indiana. The three-inch amounts were mainly confined to areas west of Evansville, including Mount Vernon. Most schools were cancelled.
• Winter Weather in Texas, January 7, 201049 injured · $1.6 million · 8 eventsAs a cold front moved across North Texas, a short period of freezing drizzle and light freezing rain along the cold front caused icy roads in parts of north Texas. The icy roads were enough to cause numerous accidents; affecting the early morning commute.
• Winter Weather in Tennessee, January 7, 2010$450,000 · 22 eventsAs a cold front moved through Middle Tennessee in association with a strong upper level low moving across the Southern Ohio Valley Region, a winter weather event developed across the area from the early morning through late afternoon hours.
• Winter Weather in Ohio, January 7 to 8, 201026 eventsAn Alberta clipper tracked southeast through the Ohio Valley on Thursday, January 7th. Very cold air was in place, which allowed for a very fluffy snow to accumulate over a prolonged period of time. Snow totals from this event ranged from two to five inches.
• Winter Storm in Wisconsin, January 7 to 8, 20102 injured · 9 eventsThe only January 2010 winter storm of any consequence produced periods of moderate to heavy snow across most of south-central and southeast Wisconsin on January 7th. Total snow accumulations were mostly in the 6 to 12 inch range.
• Winter Weather in Indiana, January 7, 201024 eventsWidespread light to moderate snow fell during the daylight hours of January 7th as an Alberta Clipper tracked through the region. Snowfall amounts generally ranged between 4 and 6 inches.
• Winter Weather in Indiana, January 7 to 8, 20103 eventsAn Alberta clipper tracked southeast through the Ohio Valley on Thursday, January 7th. Very cold air was in place, which allowed for a very fluffy snow to accumulate over a prolonged period of time. Snow totals from this event ranged from three to five inches.
• Heavy Snow in Ohio, January 7 to 8, 20102 eventsAn Alberta clipper tracked southeast through the Ohio Valley on Thursday, January 7th. Very cold air was in place, which allowed for a very fluffy snow to accumulate over a prolonged period of time. Snow totals from this event ranged from two to five inches.
• Heavy Snow in Indiana, January 7 to 8, 20102 eventsAn Alberta clipper tracked southeast through the Ohio Valley on Thursday, January 7th. Very cold air was in place, which allowed for a very fluffy snow to accumulate over a prolonged period of time. Snow totals from this event ranged from three to five inches.
• Extreme Cold in Idaho, January 7, 20101 eventTeton County school district number 401 closed schools on January 7th due to extreme cold early morning temperatures below 20 below zero with wind chills below 30 below zero.
• Extreme Cold in North Dakota, January 7 to 8, 201018 eventsAfter the winter storm event on January 6th and 7th that brought heavy snow to portions of southeast North Dakota, cold air surged back into the northern plains on brisk northwest winds. Wind chill readings fell to 40 below zero or colder along and west of the Red River Valley.
• Winter Storm in Wisconsin, January 7, 20101 eventWeak surface low pressure, associated with a stronger system aloft, tracked from the northern Plains across Illinois. The system brought snow to Wisconsin. It also brought enough cold air to enhance snowfall downstream from the warmer waters of Lake Michigan.
• Winter Weather in Alabama, January 7, 20102 deaths · 1 injured · 10 eventsAfter midnight on the 6th into the day on the 7th, a low pressure system which had developed in the northwestern Gulf of Mexico brought snowfall to northern Alabama. Most locations received around one half of an inch.
• Winter Storm in Kentucky, January 7, 201011 eventsAn upper level trough and a weak surface low moved across central Indiana during the day. Snow began near dawn and continued on an intermittent basis through late afternoon.
• Winter Storm in Indiana, January 7, 20108 eventsWidespread snow of three to four inches fell across southern Indiana. An upper level trough and weak surface low pressure moved across central Indiana during the day on January 7th.
• Winter Weather in Kentucky, January 7 to 8, 20105 eventsAn Alberta clipper tracked southeast through the Ohio Valley on Thursday, January 7th. Very cold air was in place, which allowed for a very fluffy snow to accumulate over a prolonged period of time. Snow totals from this event ranged from two to four inches.
• Heavy Snow in Kentucky, January 7 to 8, 20104 eventsAn Alberta clipper tracked southeast through the Ohio Valley on Thursday, January 7th. Very cold air was in place, which allowed for a very fluffy snow to accumulate over a prolonged period of time. Snow totals from this event ranged from two to four inches.
• Blizzard in Iowa, January 7, 2010$120,000 · 3 eventsThe third winter storm in a months time struck Iowa on the 6th and 7th. A cold airmass was in place over the central U.S. as a strong upper level trough approached from the northwest.
• Winter Weather in Kentucky, January 7 to 8, 20108 eventsAn area of low pressure in the upper atmosphere, a surface boundary, arctic air, and abundant low and middle level moisture all combined to bring a prolonged period of light accumulating snow to eastern Kentucky on January 7th.
• Winter Weather in Ohio, January 7, 20105 eventsWidespread light to moderate snow fell during the daylight hours of January 7th as an Alberta Clipper tracked through the region. Snowfall amounts generally ranged between 3 and 5 inches.
• Winter Weather in Michigan, January 7 to 8, 20103 eventsColder moist air moving across Lake Superior generated moderate to heavy lake effect snow over portions of Gogebic and Ontonagon counties on the 7th and 8th.
• Winter Weather in Tennessee, January 7 to 8, 20103 eventsAfter midnight on the 6th into the day on the 7th, a low pressure system which had developed in the northwestern Gulf of Mexico brought snowfall to southern middle Tennessee. Most locations received around one half of an inch.
• Winter Weather in Alabama, January 7, 20103 eventsAn area of low pressure moving along the northern Gulf of Mexico brought a mixture of snow, light sleet, and a bit of freezing rain, to parts of Central Alabama. Most of the precipitation was light.
• Winter Storm in Alaska, January 7 to 8, 20101 eventCold arctic air was being held in place over the northern portion of Lynn Canal. South flow in the lower levels of the atmosphere was moving warm moist air over the panhandle.
• Winter Weather in Kentucky, January 7 to 8, 20109 eventsAlthough light snow did fall off and on on January 8th, most of the snowfall reports received at the Jackson weather office were 24 hour totals. The bulk of the snow that fell across eastern Kentucky occurred from late morning on January 7th through 2 or 3 am on January 8th.
• Winter Weather in Georgia, January 7 to 8, 20103 deaths · 37 injured · 37 eventsA persistent Arctic air mass remained in place across the eastern half of the United States. A new mass of Arctic air was rapidly spreading south and east from the central Plains behind a cold front located moving southeast from the Arkalatex region.
• Heavy Snow in West Virginia, January 7 to 8, 20102 eventsAnother in a series of low pressure areas moved across the Ohio valley with cold northwest developing behind it. Bands of heavier snow fell across Mercer and Fayette counties in Pennsylvania, Garrett county Maryland, and the ridges of northern West Virginia.
• Heavy Snow in Pennsylvania, January 7 to 8, 20102 eventsAnother in a series of low pressure areas moved across the Ohio valley with cold northwest developing behind it. Bands of heavier snow fell across Mercer and Fayette counties in Pennsylvania, Garrett county Maryland, and the ridges of northern West Virginia.
• Heavy Snow in Maryland, January 7 to 8, 20101 eventAnother in a series of low pressure areas moved across the Ohio valley with cold northwest developing behind it. Bands of heavier snow fell across Mercer and Fayette counties in Pennsylvania, Garrett county Maryland, and the ridges of northern West Virginia.
• Winter Weather in Kentucky, January 7, 20101 death · 1 eventA fatality resulted from icy roads.
• Extreme Cold in Minnesota, January 7 to 8, 20108 eventsAfter the winter storm event on January 6th and 7th that brought heavy snow to portions of southeast North Dakota, cold air surged back into the northern plains on brisk northwest winds. Wind chill readings fell to 40 below zero or colder along and west of the Red River Valley.
• Winter Storm and Winter Weather in Maryland, January 7 to 8, 201014 eventsA clipper system tracked through the Mid-Atlantic bringing a period of snow to most locations beginning on the evening of the 7th and lasting into the morning of the 8th.
• Winter Storm in West Virginia, January 7 to 8, 20102 eventsA clipper system tracked through the Mid-Atlantic bringing a period of snow to most locations beginning on the evening of the 7th and lasting into the morning of the 8th.|Snow persisted through the afternoon hours on the 8th across locations along and west of the Allegheny front.
• Heavy Snow and Winter Weather in North Carolina, January 7 to 8, 20108 eventsA very cold and moist northwest flow resulted in development of scattered to numerous snow showers across the western mountains during the evening of the 7th.
• Winter Storm in Michigan, January 7 to 8, 20101 eventA low pressure system tracked through the Northern Ohio Valley/Southern Great Lakes region, producing a general two to six inch snowfall across most of southeast Michigan. The exception was across Shiawassee county, where amounts reached 7 inches.
• Cold in Louisiana, January 7 to 10, 20101 death · $3.0 million · 17 eventsAn arctic air mass moved southward out of the Central Plains and took up residence across all of southern Arkansas, southeast Oklahoma, northeast Texas as well as northwest Louisiana.
• Cold in Texas, January 7 to 10, 2010$2.1 million · 21 eventsAn arctic air mass moved southward out of the Central Plains and took up residence across all of southern Arkansas, southeast Oklahoma, northeast Texas as well as northwest Louisiana.
• Cold in Arkansas, January 7 to 10, 2010$1.2 million · 9 eventsAn arctic air mass moved southward out of the Central Plains and took up residence across all of southern Arkansas, southeast Oklahoma, northeast Texas as well as northwest Louisiana.
• Lake-Effect Snow in Pennsylvania, January 7 to 8, 2010$250,000 · 1 eventAn area of low pressure moved across the upper Ohio Valley on January 7th. Cold west to northwest winds behind the low caused lake effect snow showers to develop during the evening of the 7th. Snow showers then continued into the afternoon of the 8th.
• Cold in Oklahoma, January 7 to 10, 2010$100,000 · 1 eventAn arctic air mass moved southward out of the Central Plains and took up residence across all of southern Arkansas, southeast Oklahoma, northeast Texas as well as northwest Louisiana.
• Extreme Cold in Minnesota, January 7 to 8, 201016 eventsA large ridge of high pressure combined with a retreating area of low pressure across the southern Great Lakes, to produce strong northwest winds of 15 to 30 mph for western and southern Minnesota.
• Winter Weather in Virginia, January 7 to 8, 201011 eventsA clipper system tracked through the Mid-Atlantic bringing a period of snow to most locations beginning on the evening of the 7th and lasting into the morning of the 8th.|Snow persisted through the afternoon hours on the 8th across locations along and west of the Allegheny front.
• Winter Weather in District of Columbia, January 7 to 8, 20101 eventA clipper system tracked through the Mid-Atlantic bringing a period of snow to most locations beginning on the evening of the 7th and lasting into the morning of the 8th.
• Winter Weather in New Jersey, January 8, 201010 eventsA clipper type low pressure system caused light snow to fall for around six hours across the southern half of New Jersey during the first part of the day on the 8th. Accumulations averaged 1 to 2 inches and fell mainly between Midnight EST and 8 a.m. EST on the 8th.
• Winter Weather in Maryland, January 8, 20105 eventsA clipper type low pressure system caused light snow to fall for around six hours across the Eastern Shore during the first part of the day on the 8th. Accumulations averaged around 2 inches and fell mainly between Midnight EST and 6 a.m. EST on the 8th.
• Winter Weather in Pennsylvania, January 8, 20102 eventsA clipper type low pressure system caused light snow to fall for around eight hours around the Greater Philadelphia Metropolitan area during the first part of the day on the 8th. Accumulations averaged around an inch and fell mainly between Midnight EST and 8 a.m.
• Cold in Texas, January 8 to 11, 20101 death · $1.0 million · 6 eventsA deep upper level trough moving eastward across the United States forced a bitterly cold Arctic airmass southward from Canada into the Gulf Coast states on January 7, 2010.
• Cold in Louisiana, January 8 to 11, 20101 death · $85,000 · 17 eventsA deep upper level trough moving eastward across the United States forced a bitterly cold Arctic airmass southward from Canada into the Gulf Coast states on January 7, 2010.
• Winter Weather in Delaware, January 8, 20104 eventsA clipper type low pressure system caused light snow to fall for around six hours across Delaware during the first part of the day on the 8th. Accumulations averaged 1 to 2 inches and fell mainly between 1 a.m. EST and 7 a.m. EST on the 8th.
• Extreme Cold in Nebraska, January 7 to 8, 20102 eventsA combination cold temperatures and brisk winds produced dangerous wind chills.
• Heavy Snow in West Virginia, January 8 to 10, 20101 eventAn arctic cold front move through southeast West Virginia the morning of January 8, 2010. Behind this front, increasing northwest winds with Great Lake moisture helped to generate up to ten inches of snow in the western slopes of Greenbrier County West Virginia.
• Extreme Cold in Minnesota, January 8, 20102 eventsArctic high pressure combined with strong northwest winds brought extreme wind chills to west central Minnesota of 35 to 45 below zero throughout the morning of the 8th.
• Winter Weather in Texas, January 8, 20101 eventA band of moderate snowfall moved over portions of eastern New Mexico, the northwestern Permian Basin, and the southwestern South Plains during the early morning hours of the 8th.
• Cold in Missouri, January 8, 20103 eventsA low pressure center moved eastward across central Illinois and Indiana, dragging a cold front southeast across the Lower Ohio Valley. Gusty winds and bitterly cold arctic air arrived in the wake of the cold front.
• Cold in Illinois, January 8, 20102 eventsA low pressure center moved eastward across central Illinois and Indiana, dragging a cold front southeast across the Lower Ohio Valley. Gusty winds and bitterly cold arctic air arrived in the wake of the cold front.
• Cold in Iowa, January 8 to 9, 20104 eventsCold temperatures and combined winds created bitterly cold wind chills across portions of northeast Iowa on January 8th and 9th.
• Cold in Minnesota, January 8 to 9, 20103 eventsCold temperatures and combined winds created bitterly cold wind chills across portions of southeast Minnesota on January 8th and 9th.
• Lake-Effect Snow in Indiana, January 8 to 9, 20101 eventAn intense lake effect snow band set up across La Porte County on January 8th. This intense single band deposited over a foot of snow across the western half of the county.
• Winter Weather in Tennessee, January 8 to 9, 20105 eventsDuring the late evening hours on January 8th and the early morning hours of January 9th, a lake effect snow event off of Lake Michigan caused one to two inches of snow accumulation across central and eastern portions of Middle Tennessee.
• Extreme Cold in Texas, January 9, 201019 eventsAn arctic high pressure system resulted in bitter cold temperatures across West Central Texas.
• Winter Weather in Florida, January 9, 20105 eventsFollowing a cold front early on January 9, some sleet, snow and freezing rain mixed with a band of light rain from Kissimmee to Palm Bay northward. A slight accumulation of mixed precipitation occurred on vehicles, pool screen enclosures and some plants.
• Sleet in Florida, January 9, 20103 eventsA cold front was well south of the forecast area with an arctic airmass funneling over the area. Surface temperatures were in the 30s. Mid level moisture and a mid level trough combined to support scattered sleet and snow flurries across the area during the morning.
• Winter Weather in Kentucky, January 9, 20102 eventsScattered snow showers that occurred from late in the day of January 8th through the overnight hours left accumulating snow in Letcher county.
• Winter Weather in North Carolina, January 9 to 10, 20108 eventsA very cold and moist northwest flow resulted in development of scattered to numerous snow showers across the western mountains during the evening of the 9th, continuing into the 10th.
• Blizzard and Heavy Snow in Alaska, January 10 to 13, 201059 kt wind · 9 eventsCold arctic air from northwest Canada moved into to the northern panhandle behind an arctic cold front to the northern panhandle through the 12th. A deep low 955mb move into the southwest Gulf of Alaska from the north Pacific Ocean.
• Extreme Cold in Alaska, January 10 to 11, 20101 eventAn arctic high that was accompanied by an ample supply of cold air built in along the northern coast of Alaska. Temperatures were observed as low as -36F at the Wainwright ASOS and -42F at the Atqasuk AWSS.
• Winter Weather in Kentucky, January 10, 20101 eventA singular report of snow was received at the Jackson weather office on January 10th.

The snowstorm of December 28, 2009 to January 4, 2010The snowstorm of January 18 to 21, 2010Snow nowEvery winter storm filed

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