The snowstorm of February 8 to 13, 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

1,766

Deaths

19

Injuries

47

Damage

$105 million

Episodes

160

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 New Mexico, February 7 to 8, 20101 death · 13 eventsThe active weather pattern continued through early February with the 6th storm in three weeks impacted New Mexico. This storm crossed the central portion of the state and provided the best dynamics and moisture from Interstate 40 north to the Colorado border.
• Winter Weather in Minnesota, February 7, 20102 injured · 8 eventsExisting deep snow cover, and fresh snowfall of 2 to 6 inches over 3 to 4 days, resulted in areas of blowing snow when moderately strong northwest winds developed.
• Winter Weather in Iowa, February 7 to 8, 201011 eventsExisting deep snow cover, and fresh snowfall of 2 to 6 inches over 3 to 4 days, resulted in areas of blowing snow when moderately strong northwest winds developed.
• Winter Weather in South Dakota, February 7 to 8, 20105 eventsExisting deep snow cover, and fresh snowfall of 2 to 7 inches over 3 to 4 days, resulted in areas of blowing snow when moderately strong northwest winds developed near the eastern birder of South Dakota.
• Winter Weather in Nebraska, February 7 to 8, 20102 eventsExisting deep snow cover, and fresh snowfall of 2 to 6 inches over 3 to 4 days, resulted in areas of blowing snow when moderately strong northwest winds developed.
• Lake-Effect Snow in Minnesota, February 7 to 9, 20104 eventsHeavy lake effect snow fell along the north shore of Lake Superior. The snow migrated south from Shroeder to the Duluth area. The snow totaled of 15.4 inches in Finland, 8 inches in Shroeder, and 7 to 9 inches fell just inland from Duluth.
• Heavy Snow in Arizona, February 7, 20103 eventsA quick hitting storm hit the mountainous areas of Southeast Arizona with heavy snowfall.
• Winter Storm in Minnesota, February 7 to 9, 201036 eventsA strong storm system moved very slowly across the Northern Plains, and into the Upper Midwest from Sunday morning February 7th, through Tuesday morning February 9th.
• Winter Weather in Missouri, February 7 to 8, 20105 eventsTwo storm systems merged across the area on February 7th and 8th, 2010. The snow|fell over an extended period of time, and winter storm and heavy snow criteria were|not met. However, portions of the area did receive as much as 7.4 inches of snow.
• Winter Weather in Kansas, February 7 to 8, 20101 eventTwo storm systems merged across the area on February 7th and 8th, 2010. The snow fell over an extended period of time, and winter storm and heavy snow criteria were not met. However, up to 5.7 inches of snow was reported in Centerville Kansas.
• Winter Storm in Iowa, February 7 to 9, 2010$15,000 · 6 eventsA low pressure system moved across the Upper Midwest on February 8th. This produced a prolong snowstorm across portions of northeast Iowa from February 7th through the 9th.
• Winter Storm in Minnesota, February 7 to 9, 20107 eventsA low pressure system moved across the Upper Midwest on February 8th. This produced a prolong snowstorm across portions of southeast Minnesota from February 7th through the 9th.
• Winter Storm and Flooding in Arkansas, February 7 to 20, 2010$415,000 · 37 eventsAs an area of low pressure aloft approached from the west, snow began spreading into western Arkansas very early on the morning of the 8th. Precipitation spread rapidly eastward as the morning progressed. In northern Arkansas, snow fell.
• Winter Weather in Kansas, February 7 to 8, 20109 eventsA winter storm bore down on western Kansas Sunday and Monday, February 7th and 8th, 2010. The upper level storm brought moisture and unsettled weather to southwestern Kansas, and was then followed by a strong arctic cold front blasting south through the area Sunday night.
• Blizzard and High Wind in Alaska, February 7 to 9, 201080 kt wind · 5 eventsA strong north Pacific storm moved to the eastern Aleutians. This storm produced blizzards across the central Aleutians to the Pribilof Islands and along the Bering Sea coast of the Kuskokwim Delta.
• Heavy Snow in Minnesota, February 7 to 9, 20102 eventsA compact but strong area of low pressure moved from Canada and across the Northern Plains from the 7th through the 9th. A prolonged period of moderate to heavy snow developed over far west central Minnesota bringing 6 to 8 inches of snow to the area.
• Winter Weather in Iowa, February 7 to 9, 201021 eventsA potent slow moving clipper type low pressure system located in South Dakota tracked into Missouri from February 7 to 9, 2010. This storm system phased with another area of low pressure pushing across southern Illinois and Indiana.
• Winter Storm in Arkansas, February 7 to 8, 20107 eventsAn upper level disturbance moved into the Southern Plains from the Southern Rockies on the 8th. A large area of precipitation developed as the system approached.
• Heavy Snow in South Dakota, February 7 to 9, 20103 eventsA compact but strong area of low pressure moved from Canada and across the Northern Plains from the 7th through the 9th. A prolonged period of moderate to heavy snow developed over far northeast South Dakota bringing 6 to 8 inches of snow to the area.
• Winter Weather in Illinois, February 7 to 9, 201013 eventsA potent slow moving clipper type low pressure system located in South Dakota tracked into Missouri from February 7 to 9, 2010. This storm system phased with another area of low pressure pushing across southern Illinois and Indiana.
• Winter Weather in Missouri, February 7 to 9, 20102 eventsA potent slow moving clipper type low pressure system located in South Dakota tracked into Missouri from February 7 to 9, 2010. This storm system phased with another area of low pressure pushing across southern Illinois and Indiana.
• Winter Storm and Winter Weather in Oklahoma, February 8, 201012 eventsAn upper level storm system gradually moved east toward the southern Plains. Several disturbances rotated around the main system resulting in several waves of precipitation that overspread Oklahoma.
• Winter Storm in Oklahoma, February 8, 20105 eventsAn upper level disturbance moved into the Southern Plains from the Southern Rockies on the 8th. A large area of precipitation developed as the system approached.
• Winter Storm and Winter Weather in Arkansas, February 8 to 9, 201012 eventsA low pressure system tracked east from Texas into Central Mississippi February 8th and 9th, 2010.
• Winter Storm in Mississippi, February 8 to 9, 20109 eventsA low pressure system tracked east from Texas into Central Mississippi February 8th and 9th, 2010.
• Winter Storm in Tennessee, February 8 to 9, 20101 injured · 20 eventsA low pressure system tracked east from Texas into Central Mississippi February 8th and 9th, 2010.
• Winter Storm and Winter Weather in Alabama, February 8, 20106 eventsA narrow 20 to 30 mile wide band of snowfall developed during the pre-dawn hours of the 8th moving into far northwestern Alabama, then spreading eastward across far northern Alabama.
• Winter Storm in Missouri, February 8 to 9, 20102 eventsA low pressure system tracked east from Texas into Central Mississippi February 8th and 9th, 2010. Cold arctic air was already in place on February 8th when snow began moving into the Missouri Bootheel ahead of the system. Snow accumulated quickly.
• Winter Weather in Tennessee, February 8, 20101 eventLight snow fell across Franklin County during the early morning hours ending by around 9 am. Accumulations of 1/4 to 1/2 inch were reported atop the Cumberland Plateau, including the community of Sewanee.
• Winter Storm in Iowa, February 8 to 9, 2010$70,000 · 7 eventsA complex situation unfolded over the central U.S. during the 7-9 February period. There were two systems involved, the northern stream system and the southern stream system. The CONUS was under a split flow regime.
• Cold in Nebraska, February 8, 20109 eventsArctic high pressure pushed down across the region during the morning of Feb. 8th. Temperatures in northeast Nebraska fell to around zero and when combined with northwest winds of 20 to 30 mph wind chill values dropped to 20 below to 25 below zero for several hours.
• Winter Storm and Winter Weather in Illinois, February 8 to 9, 20101 injured · 13 eventsA low pressure system tracked from Texas into the Ohio River Valley, bringing widespread snow to central Illinois on February 8th and 9th.
• Heavy Snow and Winter Weather in Missouri, February 8 to 9, 201011 eventsA low pressure center moved northeastward from Louisiana to eastern Kentucky by the early morning hours of the 9th. This brought a wide swath of snowfall to southeast Missouri and the Lower Ohio Valley.
• Winter Storm in Illinois, February 8 to 10, 20108 eventsHeavy snow began falling during the afternoon and evening of February 8th and continued into the early morning of February 10th. Chicago O'Hare Airport measured 12.6 inches of snowfall on February 8th.
• Heavy Snow in Tennessee, February 8 to 9, 20107 eventsAs a winter storm system moved through Middle Tennessee, several counties across western portions of the region experienced heavy snowfall, which resulted in hazardous driving conditions and numerous car accidents.
• Winter Weather in Tennessee, February 8 to 9, 20109 eventsAs a winter storm system moved through Middle Tennessee, several counties across the mid state experienced snowfall, which resulted in hazardous driving conditions and numerous car accidents.
• Heavy Snow in Kentucky, February 8 to 9, 201022 eventsA low pressure center moved northeastward from Louisiana to eastern Kentucky by the early morning hours of the 9th. This brought a wide swath of snowfall to southeast Missouri and the Lower Ohio Valley.
• Winter Weather in Illinois, February 8 to 9, 201019 eventsA low pressure center moved northeastward from Louisiana to eastern Kentucky by the early morning hours of the 9th. This brought a wide swath of snowfall to southeast Missouri and the Lower Ohio Valley.
• Winter Weather in Wisconsin, February 8 to 10, 201011 eventsA clipper-type low pressure system passing to the southwest and south of Wisconsin resulted in widespread snow across southern Wisconsin. A second low that had moved northeastward from Texas merged with the clipper system over western Ohio and deepened.
• Heavy Snow and Winter Weather in Indiana, February 8 to 9, 20101 injured · 6 eventsA low pressure center moved northeastward from Louisiana to eastern Kentucky by the early morning hours of the 9th. This brought a wide swath of snowfall to southeast Missouri and the Lower Ohio Valley.
• Heavy Snow in Kentucky, February 8 to 9, 201015 eventsAn inverted trough moving across Tennessee combined with an upper low sliding south across the upper Midwest brought a mixture of heavy snow, sleet and rain across central Kentucky Tuesday morning February 9th.
• Heavy Snow in Indiana, February 8 to 9, 201010 eventsA combination of an inverted trough moving across Tennessee and a strong closed low diving southward across the upper Midwest brought widespread snow ranging from 4 to 7 inches across southern Indiana. Snow began during the early morning hours on Tuesday Feb 9th.
• Winter Storm in Wisconsin, February 9 to 10, 20101 death · 9 eventsA clipper-type low pressure system passing to the southwest and south of Wisconsin resulted in widespread snow across southern Wisconsin. A second low that had moved northeastward from Texas merged with the clipper system over western Ohio and deepened.
• Heavy Snow and Winter Weather in Kentucky, February 9 to 10, 201057 eventsA powerful and complex storm system brought rain, accumulating snow, and some mixed precipitation to eastern Kentucky from February 8-10th.
• Blizzard and Winter Storm in Virginia, February 9 to 11, 20101 injured · $135,000 · 55 kt wind · 27 eventsAn area of low pressure moved from the Mississippi coast to off the Carolina coast. At the same time another low moved through the Ohio Valley, putting southwest Virginia in the middle of the two.
• Winter Storm and Winter Weather in Indiana, February 9 to 10, 201024 eventsLight to moderate snow fell across the region February 9th into early February 10th as an intensifying area of low pressure tracked northeastward from the Tennessee Valley into northern Ohio. Snowfall totals generally ranged between 6 and 10 inches.
• Heavy Snow in Ohio, February 9 to 10, 201018 eventsLow pressure in the Mississippi Valley strengthened as it moved into the Ohio Valley early on Tuesday, February 9th. Snow began on Monday night and spread northeast early on Tuesday. Later in the afternoon, this snow mixed with rain south of the Ohio River.
• Winter Weather in Ohio, February 9 to 10, 201014 eventsLow pressure in the Mississippi Valley strengthened as it moved into the Ohio Valley early on Tuesday, February 9th. Snow began on Monday night and spread northeast early on Tuesday. Later in the afternoon, this snow mixed with rain south of the Ohio River.
• Heavy Snow in Kentucky, February 9 to 10, 201012 eventsLow pressure in the Mississippi Valley strengthened as it moved into the Ohio Valley early on Tuesday, February 9th. Snow began on Monday night and spread northeast early on Tuesday. Later in the afternoon, this snow mixed with rain south of the Ohio River.
• Heavy Snow in Indiana, February 9 to 10, 20105 eventsLow pressure in the Mississippi Valley strengthened as it moved into the Ohio Valley early on Tuesday, February 9th.
• Winter Weather in Indiana, February 9 to 10, 20103 eventsLow pressure in the Mississippi Valley strengthened as it moved into the Ohio Valley early on Tuesday, February 9th. Snow began on Monday night and spread northeast early on Tuesday.
• Winter Storm in West Virginia, February 9 to 11, 20103 eventsAn area of low pressure moved from the Mississippi coast to off the Carolina coast. At the same time another low moved through the Ohio Valley, putting southeast West Virginia in the middle of the two.
• Winter Storm in Indiana, February 9 to 10, 20102 eventsHeavy snow began falling during the early morning of February 9th and continued into the morning of February 10th.
• Winter Storm in Michigan, February 9 to 10, 20105 eventsLight to moderate snow fell across the region February 9th into early February 10th as an intensifying area of low pressure tracked northeastward from the Tennessee Valley into northern Ohio. Snowfall totals generally ranged between 6 and 10 inches.
• Winter Storm in Ohio, February 9 to 10, 20108 eventsModerate to heavy snow fell across the region February 9th into early February 10th as an intensifying area of low pressure tracked northeastward from the Tennessee Valley into northern Ohio. Snowfall totals generally ranged between 6 and 11 inches.
• Winter Storm in Ohio, February 9 to 10, 2010$2.1 million · 9 eventsAn area of low pressure centered over Tennessee at daybreak on February 9th moved rapidly northeast during the day. By early evening, the low was centered over Central Ohio.
• Heavy Snow in Michigan, February 9 to 10, 201015 eventsA low pressure system formed over the Tennessee Valley region and moved to the north northeast to just east of Toledo Ohio, bringing heavy snow to southern lower Michigan. The snow fell from the morning hours of February 9th through the mid morning hours of February 10th.
• Winter Storm in Wisconsin, February 9 to 10, 20102 eventsLow pressure moved across central Illinois from Iowa and produced a large swath of snow across Wisconsin.
• Winter Weather in Michigan, February 9 to 10, 20101 eventA northeast flow of colder air behind a low pressure system moving through Illinois generated moderate lake effect snow showers over Marquette County from the morning of the 9th into the morning of the 10th.
• Blizzard and Winter Storm in West Virginia, February 9 to 11, 201013 eventsA potent area of low pressure tracked through the Midwest on the 9th. As the low approached the Mid-Atlantic coast, this system phased with energy in the southern branch of the jet stream to cause strong low pressure to develop just off the Delmarva peninsula.
• Blizzard and Winter Storm in Virginia, February 9 to 11, 201029 eventsA potent area of low pressure tracked through the Midwest on the 9th. As the low approached the Mid-Atlantic coast, this system phased with energy in the southern branch of the jet stream to cause strong low pressure to develop just off the Delmarva peninsula.
• Winter Storm in Pennsylvania, February 9 to 11, 201026 eventsA major winter storm produced moderate to heavy snow across much of central Pennsylvania. Snowfall totals generally ranged from 6 to 12 inches over the central mountains and Laurel Highlands to 15 to 25 inches across the lower Susquehanna valley.
• Winter Storm in Pennsylvania, February 9 to 10, 2010$650,000 · 3 eventsAn area of low pressure centered over Tennessee at daybreak on February 9th moved rapidly northeast during the day. By early evening, the low was centered over Central Ohio.
• Blizzard and Winter Storm in Maryland, February 9 to 11, 201026 eventsA potent area of low pressure tracked through the Midwest on the 9th. As the low approached the Mid-Atlantic coast, this system phased with energy in the southern branch of the jet stream to cause strong low pressure to develop just off the Delmarva peninsula.
• Winter Weather in Virginia, February 9 to 10, 201029 eventsStrong low pressure moving off the northern Mid Atlantic Coast produced between one and five inches of snow, as well as some sleet and freezing rain across portions of central and eastern Virginia from Tuesday afternoon, February 9th, into Wednesday evening February 10th.
• Blizzard in Maryland, February 9 to 10, 20105 eventsStrong low pressure moving off the northern Mid Atlantic Coast produced blizzard conditions across the Lower Maryland Eastern Shore from Tuesday afternoon, February 9th, into Wednesday evening February 10th.
• Heavy Snow in Ohio, February 9 to 10, 20101 eventOnly 3 days after an historic snow storm hit the region, another major storm blasted portions of western Pennyslvania, northern West Virginia, Garrett county Maryland, and eastern Ohio from the afternoon of February 9th to the early morning of February 11th.
• Blizzard and Winter Storm in North Carolina, February 9 to 11, 2010$186,000 · 58 kt wind · 13 eventsAn area of low pressure moved from the Mississippi coast to off the Carolina coast. At the same time another low moved through the Ohio Valley, putting northwest North Carolina in the middle of the two.
• Blizzard and Winter Storm in Pennsylvania, February 9 to 10, 201015 eventsOnly 3 days after an historic snow storm hit the region, another major storm blasted portions of western Pennyslvania, northern West Virginia, Garrett county Maryland, and eastern Ohio from the afternoon of February 9th to the early morning of February 11th.
• Heavy Snow in Michigan, February 9 to 10, 201015 eventsA strong low pressure system passing through the Ohio River Valley dropped the largest snowfall totals of the season across southeast Michigan.
• Blizzard and Winter Storm in West Virginia, February 9 to 11, 20104 eventsOnly 3 days after an historic snow storm hit the region, another major storm blasted portions of western Pennyslvania, northern West Virginia, Garrett county Maryland, and eastern Ohio from the afternoon of February 9th to the early morning of February 11th.
• Winter Storm in Pennsylvania, February 9 to 11, 20102 deaths · $20 million · 10 eventsFor the second time within a week a major winter storm affected Eastern Pennsylvania on the 10th and 11th and smashed seasonal snowfall records in the Philadelphia area. Snowfall averaged one to two feet with some locally higher amounts in the Philadelphia northwest suburbs.
• Blizzard and Winter Storm in Maryland, February 9 to 10, 2010$1.0 million · 10 eventsFor the second time within a week a major winter storm, this one with blizzard conditions at times, affected the Maryland Eastern Shore. Blizzard conditions occurred at times during the late morning and the first half of the afternoon on the 10th.
• Blizzard and Winter Storm in District of Columbia, February 9 to 10, 20102 eventsA potent area of low pressure tracked through the Midwest on the 9th. As the low approached the Mid-Atlantic coast, this system phased with energy in the southern branch of the jet stream to cause strong low pressure to develop just off the Delmarva peninsula.
• Blizzard and Winter Storm in Delaware, February 9 to 11, 20102 deaths · 4 injured · $7.8 million · 8 eventsFor the second time within a week a major winter storm, this one with blizzard conditions at times, affected the state of Delaware. Blizzard conditions occurred at times during the afternoon and early evening of the 10th.
• Heavy Snow in West Virginia, February 9 to 11, 20106 eventsA wintry mix of precipitation arrived during the morning of Tuesday the 9th. However, the mixture changed to mostly rain for the afternoon, as the low pressure center lifted northeast toward Ohio. The artcic cold front swept through around 0000E on Wednesday the 10th.
• Blizzard and Heavy Snow in Maryland, February 9 to 11, 20102 eventsOnly 3 days after an historic snow storm hit the region, another major storm blasted portions of western Pennyslvania, northern West Virginia, Garrett county Maryland, and eastern Ohio from the afternoon of February 9th to the early morning of February 11th.
• Blizzard in Virginia, February 9 to 10, 20101 eventStrong low pressure moving off the northern Mid Atlantic Coast produced blizzard conditions across Accomack County on the Virginia Eastern Shore from Tuesday afternoon, February 9th, into Wednesday evening February 10th.
• Blizzard and Winter Storm in New Jersey, February 9 to 11, 20102 deaths · 1 injured · $5.0 million · 25 eventsFor the second time within a week a major winter storm affected New Jersey. Blizzard conditions occurred at times across the extreme southern part of the state during the afternoon and early evening of the 10th.
• Heavy Snow in New Jersey, February 9 to 11, 20106 eventsRapidly deepening low pressure tracked slowly northeast from the North Carolina coast during the day Wednesday to southeast of Long Island by Wednesday evening. This brought periods of heavy snow to the region late Tuesday night into Wednesday evening.
• Heavy Snow in New York, February 9 to 11, 201014 eventsRapidly deepening low pressure tracked slowly northeast from the North Carolina coast during the day Wednesday to southeast of Long Island by Wednesday evening. This brought periods of heavy snow to the region late Tuesday night into Wednesday evening.
• Heavy Snow in Tennessee, February 9 to 10, 20107 eventsAn upper level disturbance tracked across the region dumping heavy snow across the area. Up to 17 of snow fell across the higher elevations, while 1 to 4 inches of snow was reported in the northern Tennessee Valley and Cumberland Plateau.
• Heavy Snow in Virginia, February 9 to 10, 20106 eventsAn upper level disturbance tracked across the region dumping heavy snow across the area. Up to 14 of snow fell across the higher elevations, while 1 to 4 inches of snow was reported in the valley.
• Winter Storm in Pennsylvania, February 10, 20108 eventsA complex area of low pressure from the Ohio Valley to the Carolinas tracked east and intensified into a major winter storm off the Delamarva Peninsula from Tuesday the 9th to early Wednesday the 10th.
• Heavy Snow in Connecticut, February 10 to 11, 20103 eventsRapidly deepening low pressure tracked slowly northeast from the North Carolina coast during the day Wednesday to southeast of Long Island by Wednesday evening. This brought periods of heavy snow to the region late Tuesday night into Wednesday evening.
• Blizzard in Alaska, February 9 to 10, 20101 eventA 964 mb low across the eastern Aleutians combined with a moderate ridge of high pressure across the Arctic Ocean and Siberia to produce blizzard conditions at Gambell on Saint Lawrence Island from the evening of the 9th through the early evening of the 10th.
• Winter Weather in North Carolina, February 10 to 11, 20109 eventsMoist northwest flow behind a cold front produced numerous snow showers across the western mountains of North Carolina during the early morning hours.
• Blizzard in North Carolina, February 10 to 11, 20104 eventsNorthwest flow behind a cold front produced numerous snow showers across the western mountains of North Carolina during the early morning hours.
• Winter Weather in Tennessee, February 10, 20102 eventsAs an upper level low moved across the Ohio Valley, its circulation brought upper level disturbances across Middle Tennessee, which resulted in snowfall across two counties in the eastern half of the mid state.
• Cold in Indiana, February 10, 20101 death · 1 eventA man died in New Albany, Indiana due to hypothermia during the early morning hours February 10th. He was found behind a shopping center. According to a police report, the man had disabilities and had fallen near a dumpster behind a store.
• Winter Storm in Massachusetts, February 10 to 11, 2010$75,000 · 5 eventsA surface low pressure system moved up the east coast from the mid-Atlantic states (coastal storm), passing just southeast of Nantucket.
• Winter Storm in Rhode Island, February 10 to 11, 20103 eventsA surface low pressure system moved up the east coast from the mid-Atlantic states (coastal storm), passing just southeast of Nantucket.
• Cold in Kentucky, February 11, 20101 death · 1 eventThe second hypothermia death in two days occurred in the Louisville metro area when a man died of exposure in southwest Louisville.
• Heavy Snow and Winter Weather in Texas, February 11 to 12, 20101 death · 8 injured · $48 million · 40 eventsA record snowfall fell across north Texas beginning the early morning hours of February 11th and continuing until the early morning hours of the 12th. Four climate data records for snow at DFW Airport were broken during this event including the highest 24-hour snowfall total.
• Heavy Snow and Winter Weather in Texas, February 11, 20101 injured · $150,000 · 20 eventsA winter storm system brought accumulating snowfall to much of the west Texas South Plains on the 11th, but the heaviest amounts were observed over the southern Rolling Plains.
• Winter Weather in West Virginia, February 11 to 12, 20103 eventsA northwest flow around departing low pressure triggered upslope snow showers for locations along and west of the Allegheny front in eastern West Virginia.
• Winter Weather in Maryland, February 11 to 12, 20101 eventA northwest flow around departing low pressure triggered upslope snow showers for locations along and west of the Allegheny front in western Maryland.
• Winter Weather in Texas, February 11 to 12, 20103 eventsAn intense storm system moved across the region from February 11, 2010 through February 12, 2010, bringing widespread sleet and snow. A mix of rain and sleet occurred throughout the day on February 11th, before mixing with and changing to snow during the evening hours.
• Heavy Snow in Texas, February 11, 20102 eventsStrong lift ahead of a potent upper level storm system resulted in a mix of wintry precipitation across southeast New mexico and west Texas.
• Heavy Snow in New Mexico, February 11, 20101 eventStrong lift ahead of a potent upper level storm system resulted in a mix of wintry precipitation across southeast New Mexico and west Texas.
• Heavy Snow in Texas, February 11, 20104 eventsSnow developed as an upper level low pressure system interacted with a modified arctic airmass that invaded much of the region. Snow fell mainly along and north of a line that extended from Sterling City to Brownwood. A heavy snow band fell along and north of I20.
• Heavy Snow and Winter Weather in Texas, February 11, 20108 eventsA strong storm system moved from the Gulf of California east through northern Texas. Temperatures initially in the middle 30s, gradually cooled to near or below freezing by the morning hours.
• Heavy Snow and Winter Weather in Texas, February 11 to 12, 201021 eventsA significant winter storm affected all of the four state region which began in the pre-dawn hours thursday, February 11th.
• Heavy Snow and Winter Weather in Oklahoma, February 11 to 12, 201021 eventsA strong storm system moved from the Gulf of California east through northern Texas. Temperatures initially in the middle 30s, gradually cooled to near or below freezing by the morning hours.
• Heavy Snow and Winter Weather in Arkansas, February 11 to 12, 20109 eventsA significant winter storm affected all of the four state region which began in the pre-dawn hours thursday, February 11th.
• Heavy Snow in Oklahoma, February 11 to 12, 20101 eventA significant winter storm affected all of the four state region which began in the pre-dawn hours thursday, February 11th.
• Winter Storm in Oklahoma, February 11 to 12, 20102 eventsAn upper level disturbance moved across the northern portions of Texas on the 11th. Precipitation spread into southeastern Oklahoma during the morning hours and continued into the late evening hours.
• Heavy Snow and Winter Weather in Louisiana, February 11 to 12, 201017 eventsA significant winter storm affected all of the four state region which began in the pre-dawn hours thursday, February 11th.
• Winter Weather in Arkansas, February 11 to 12, 201018 eventsA low pressure system formed along the Texas Gulf Coast and pushed moisture northward into Arkansas. As this moisture met up with cold air over Arkansas, snow developed on the afternoon of the 11th and continued into the morning of the 12th.
• Winter Storm and Winter Weather in Louisiana, February 11 to 12, 201012 eventsAn intense storm system moved across the region from February 11, 2010 through February 12, 2010, bringing widespread sleet and snow. Sleet mixed with rain occurred throughout the day on February 11th, before mixing with and changing to snow during the evening hours.
• Heavy Snow in Louisiana, February 11 to 12, 20109 eventsLow pressure over the Gulf of Mexico moved along the Louisiana coast during the night of February 11th. With high pressure over Arkansas providing the cold air, a band of snow developed over southeast Louisiana and southwest Mississippi.
• Heavy Snow in Mississippi, February 11 to 12, 20104 eventsLow pressure over the Gulf of Mexico moved along the Louisiana coast during the night of February 11th and early morning of the 12th. With high pressure over Arkansas providing the cold air, a band of snow developed over southeast Louisiana and southwest Mississippi.
• Heavy Snow in Louisiana, February 11 to 12, 2010$1.8 million · 9 eventsHeavy snow affected a large portion of the region, especially locations across central and southern Mississippi, on Thursday night and Friday, February 11th and 12th.
• Heavy Snow in Mississippi, February 11 to 12, 2010$18 million · 36 eventsHeavy snow affected a large portion of the region, especially locations across central and southern Mississippi, on Thursday night and Friday, February 11th and 12th.
• Sleet in Florida, February 11 to 12, 20105 eventsA surface low tracked eastward from the Gulf of Mexico with a surface warm front extending toward the southern Florida peninsula. Cold air was in place across the area as well as deep moisture.
• Heavy Snow in Texas, February 11 to 12, 20102 eventsA low pressure system produced rain changing to snow during the early morning hours of February 12th. Two to three inches accumulated over portions of Madison and Houston Counties, with a maximum of 3.5 inches over northern Houston County.
• Winter Storm in Alabama, February 12, 201034 eventsAn area of low pressure moved across the northern Gulf of Mexico and passed to the south of the Mobile area. Heavy rain changed over to snow across portions of the central gulf coast as the low moved to the east.
• Winter Storm in Mississippi, February 12, 20106 eventsAn area of low pressure moved across the north central Gulf. Heavy rain changed over to snow across portions of the central gulf coast as the low moved to the east. Snowfall accumulations ranged from a dusting to as much as 4 inches across interior southeast Mississippi.
• Winter Storm and Winter Weather in Florida, February 12, 20102 eventsAn area of low pressure moved across the north central Gulf. Heavy rain changed over to snow across portions of the central gulf coast as the low moved to the east. Snowfall accumulations ranged from a dusting to as much as 2 inches across the interior western Florida panhandle.
• Heavy Snow in Idaho, February 12 to 13, 20101 eventA Pacific storm system dumped heavy snow in the Idaho Wasatch in Bear Lake County. Highest amounts were 11 inches at Emigrant Summit and 14 inches at Franklin Basin.
• Heavy Snow and Winter Weather in Alabama, February 12, 20102 deaths · 1 injured · 33 eventsA low pressure system moving across the northern Gulf of Mexico brought a swath of snow to a large portion of Central Alabama.
• Heavy Snow in Georgia, February 12 to 13, 20108 eventsA rare snow event developed over the region through the day on the 12th with maximum snow totals from 4-7 from Coffee Co., AL into Terrell Co., GA. Measurable snowfall (1-1.5) also was observed from Walton/Holmes Co., FL into Berrien Co., GA.
• Heavy Snow in Alabama, February 12 to 13, 20105 eventsA rare snow event developed over the region through the day on the 12th with maximum snow totals from 4-7 from Coffee Co., AL into Terrell Co., GA. Measurable snowfall (1-1.5) also was observed from Walton/Holmes Co., FL into Berrien Co., GA.
• Winter Weather in Florida, February 12 to 13, 20102 eventsMeasurable snowfall (1-1.5) was observed over Walton/Holmes Co., with trace amounts observed over Washington, Jackson, Calhoun, Gadsen and Leon counties.
• Heavy Snow and Winter Weather in Alabama, February 12, 20105 eventsA winter storm and low pressure system tracked eastward across the central Gulf of Mexico. Moisture flow well north and northwest of the low track resulted in an unseasonable and in some cases record setting snowfall in parts of the deep South.
• Heavy Snow and Winter Weather in Georgia, February 12 to 13, 20101 death · 6 injured · 97 eventsA full latitude trough was moving through the eastern United States. An associated area of surface low pressure was moving from the central into the eastern Gulf of Mexico. An Arctic air mass lingered across the eastern U.S.
• Winter Storm and Sleet in Georgia, February 12 to 13, 201010 eventsA surface low tracked eastward from the Gulf of Mexico with a surface warm front extending toward the southern Florida peninsula. Cold air was in place across the area as well as deep moisture.
• Heavy Snow in South Carolina, February 12 to 13, 201015 eventsAs low pressure tracked across the northern Gulf of Mexico, light snow developed during the late afternoon across the western half of the Upstate. The snow gradually spread across the rest of the Upstate and northwest Piedmont and became heavier during the early evening hours.
• Heavy Snow in North Carolina, February 12, 20107 eventsAs low pressure tracked along the northern Gulf Coast, light snow developed during the late afternoon across the southern North Carolina mountains. The snow gradually increased in intensity through the remainder of the afternoon and into the early evening.
• Heavy Snow in Georgia, February 12, 20106 eventsAs low pressure tracked across the northern Gulf of Mexico, light snow developed during the late afternoon across northeast Georgia. The snow gradually increased in intensity through the remainder of the afternoon and into the early evening.
• Heavy Snow in South Carolina, February 12 to 13, 2010$146,000 · 50 eventsA strong storm system tracked across northern Florida and then northeastward off the Georgia and South Carolina coast.
• Heavy Snow in Georgia, February 12 to 13, 2010$35,000 · 13 eventsA strong storm system tracked across northern Florida and then northeastward off the Georgia and South Carolina coast.
• Winter Storm and Winter Weather in North Carolina, February 12 to 13, 201031 eventsA rapidly moving coastal storm system along the North Carolina coast produced up to 4 to 5 inches of snow in the Coastal Plain, Sandhills and Piedmont. Around 2 to 3 inches of snow fell across the Northwest Piedmont and Triad.
• Winter Storm in North Carolina, February 12 to 13, 20109 eventsLight snow developed during the evening rush across portions of the Carolina piedmont and southern foothills. The snow intensified through the evening, and began to quickly accumulate. By mid-evening, 1 to 3 inches of snowfall had occurred across the area.
• Winter Storm in Georgia, February 12 to 13, 20105 eventsA low pressure system tracked acros Northern Florida which produced heavy snow on the north side of the storm system. Snow fell from the Florida panhandle northeast to Virginia. Amounts in the CSRA ranged from 4-7 inches.
• Winter Storm in South Carolina, February 12 to 13, 201018 eventsA low pressure system tracked acros Northern Florida which produced heavy snow on the north side of the storm system. Snow fell from the Florida panhandle northeast to Virginia. Amounts in central South Carolina ranged from 4-10 inches.
• Winter Weather in North Carolina, February 12 to 13, 201018 eventsLight snow developed during the early evening across the mountains, and then quickly spread into the foothills and the western piedmont through the evening. Total snowfall ranged from an inch or two in areas north of I-40, to as much as three inches in areas further to the south.
• Heavy Snow in South Carolina, February 12 to 13, 20108 eventsLow pressure tracked across northern Florida and up the eastern seaboard, dumping four to six inches of snow across the region.
• Heavy Snow in North Carolina, February 12 to 13, 201015 eventsStrong low pressure moved northeast well offshore of the coast early February 13th. Widespread snow developed over the region during the evening of February 12th and continued into the morning of February 13th.
• Heavy Snow in North Carolina, February 12 to 13, 20106 eventsLow pressure tracked across northern Florida and up the eastern seaboard, dumping four to six inches of snow across the region.
• Winter Weather in Virginia, February 13, 201018 eventsLow pressure moving off the coastal Carolinas produced between one and two inches of snow across portions of south central and southeast Virginia from Friday night, February 12th, through midday Saturday February 13th.
• Winter Weather in North Carolina, February 13, 20108 eventsLow pressure moving off the coastal Carolinas produced between one and three inches of snow across portions of northeast North Carolina from Friday night, February 12th, through midday Saturday February 13th.
• Winter Weather in South Dakota, February 13 to 15, 201022 eventsNew snowfall of 1 to 4 inches combined with deep existing snow cover and strong northwest winds to produce blowing and drifting snow.
• Winter Weather in Nebraska, February 13 to 15, 20102 eventsNew snowfall of 1 to 3 inches combined with deep existing snow cover and strong northwest winds to produce blowing and drifting snow.
• Winter Weather in Iowa, February 13 to 15, 201011 eventsNew snowfall of 1 to 4 inches combined with deep existing snow cover and strong northwest winds to produce blowing and drifting snow.
• Winter Weather in Minnesota, February 13 to 15, 20108 eventsNew snowfall of 1 to 4 inches combined with deep existing snow cover and strong northwest winds to produce blowing and drifting snow.
• Winter Weather in Tennessee, February 13, 20101 eventSnow showers developed in a warm advection zone during the early morning hours on the 14th. The snow showers mixed at times with rainfall before changing to all rain by late morning.
• Heavy Snow in North Dakota, February 13, 20106 eventsAn upper level low moving from southern Canada into central North Dakota combined with a surface trough to produce a narrow band of heavy snow over east central North Dakota from late morning into the early evening of Saturday, February 13th.
• Winter Storm in North Dakota, February 13 to 14, 20107 eventsPortions of the northern plains were affected by a second winter storm in less than week that originated in northeast Manitoba. The features of this storm were very similar to the February 6th through 8th event, but were about 75 to 100 miles further west.
• Winter Weather in West Virginia, February 13 to 14, 20102 eventsAn upslope northwest flow triggered snow showers for locations along and west of the Allegheny front in West Virginia.
• Cold in Illinois, February 14, 20101 death · 1 eventA 59 year old man died in Evanston from cold exposure. Low temperatures on the morning of February 14th were in the single digits.
• Blizzard and Winter Weather in Nebraska, February 14 to 15, 20104 deaths · 15 injured · 29 eventsA quick moving storm brought strong winds and blizzard or near-blizzard conditions to a large part of eastern Nebraska and western Iowa on Feb. 14th and 15th.
• Winter Weather in Alabama, February 14, 20103 eventsSnow showers developed in a warm advection zone during the early morning hours on the 14th. The snow showers mixed at times with rainfall before changing to all rain by late morning.
• Winter Weather in Oklahoma, February 14, 201010 eventsA cold front moved south through Oklahoma during the morning hours of Valentine's Day. At the same time, a storm system moved through the central plains.
• Winter Storm and Winter Weather in Michigan, February 14 to 16, 20105 eventsDeep moisture rotating around a low pressure system over southeast Canada brought moderate to heavy snow to portions of western Upper Michigan from the 14th into the 16th.
• Winter Weather in Tennessee, February 14 to 15, 201025 eventsA warm front developed during the evening hours on February 13th, setting the stage for an increase in moisture across Middle Tennessee.
• Winter Weather in Iowa, February 14 to 15, 20105 injured · 4 eventsA quick moving storm brought light snow and strong winds with near-blizzard conditions to western Iowa on Feb. 14th and 15th. As low pressure aloft dropped southeast across eastern Nebraska early on the 14th, light to moderate snow developed over the region.
• Lake-Effect Snow in Wisconsin, February 14 to 15, 20102 eventsWidespread snow fell on Valentine's Day, and continued into the next day. Cold north winds blew across Lake Superior, enhancing the snow across the northwest Wisconsin snow belt.
• Winter Weather in Tennessee, February 14 to 15, 20106 eventsA warm front developed during the evening hours on February 13th, setting the stage for an increase in moisture across Middle Tennessee.
• Winter Weather in Arkansas, February 14, 20103 eventsA cold front moved into moist air in Arkansas on the 14th, bringing some light snow to a few counties in the western part of the state. Accumulations were generally an inch or less, but some highways became snow covered and slick.

The snowstorm of February 4 to 8, 2010The snowstorm of February 8 to 11, 2010Snow nowEvery winter storm filed

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