Low pressure cyclone passing to the south with upper level forcing induced a broad and significant snowstorm across the region, including East Tennessee, which experienced heavy snowfall. A frontogenesis band across southern Tennessee and northern Georgia helped power higher snowfall rates early into the event across southeastern Tennessee, resulting in locally heavier snowfall before warm air…
Every event with a place to put it; 37 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
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.
The episode as NWS MRX wrote it up.
Low pressure cyclone passing to the south with upper level forcing induced a broad and significant snowstorm across the region, including East Tennessee, which experienced heavy snowfall. A frontogenesis band across southern Tennessee and northern Georgia helped power higher snowfall rates early into the event across southeastern Tennessee, resulting in locally heavier snowfall before warm air advection brought a changeover in precipitation type to icing and eventually to rain.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Morristown, TN wrote its last area forecast discussion before the first event at Jan 10, 3:58 AM EST, 1 hour 52 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
23 heavy snow, 13 winter weather, 1 winter storm. Local standard time, as filed.
A major winter storm brought heavy snow and a light glaze of ice to Marion County, with snowfall reports from public, the EM, and CoCoRaHS of 4.5 inches in Jasper, 5 inches in Lone Oak, 4 inches in Whitwell, almost 3 inches in Tracy City, and 5 inches in South Pittsburg.
A mixed precipitation event occurred in Sequatchie County. Event started out as snow and eventually transitioning to mixed precipitation and ending as rain. A CoCoRaHS observer reported 3.3 inches of snow east of Dunlap. The COOP observer reported 3.8 inches of snow and 0.25 inches of ice in Cartwright.
Heavy snow fell across Bledsoe County during the day before eventually yielding to mixed precipitation as the event came to an end. A trained spotter in Melvine reported 5 inches of snow, a public observer outside of Pikeville reported 4 inches, and a CoCoRaHS report outside of Pikeville reported 4.2 inches of snow.
Heavy snow fell across Chattanooga during the middle portions of the day before sleet began to make its way across the county at 1330, freezing rain at 1445, and rain by 1730 EST, according to the observations at Chattanooga Airport. Event snowfall reports of 3-4 inches were common across the county, with the maximum of 4.7 inches of snow measured in East Brainerd.
Heavy snow fell during the middle portions of the day in Bradley County, before transitioning to sleet, then freezing rain, then eventually to rain to end the event. The highest snowfall report was 5.5 inches from a spotter in Cleveland. Other reports included 4 inches in Charleston, 3.5 inches in Waterville, 4.5 inches in Tasso, and 3.5 inches with a glaze of ice in Gap Springs.
Heavy snow fell during the day across the county, before transitioning to sleet and mix by 1945 PM EST. Event total accumulations were 3.8 inches in Spring City with a glaze of ice, and 4.5 inches of snow in Graysville.
Heavy snow fell across the county during the day, before transitioning to wintry mix and eventually ending in the evening. A report from Ten Mile covered the storm perfectly: Heavy snow totaled 5.5 inches measured at 3:10 PM when wintry mix began. Last couple hours before 3 PM were the heaviest snowfall rates passing 1 inch per hour. As of 6:05 additional sleet and freezing rain have led the snow to compact to 4 inches with a glaze of ice on top of everything. Temperatures have remained in the 20s during the wintry mix.
Neighboring counties reported heavy snowfall during the daytime hours, however only 1 report of snow was received at 1030 AM EST from Polk County, 1.3 inches of snow south of Etowah TN just across the county line.
Heavy snow fell during the day across McMinn County, before eventually transitioning to a wintry mix and then finally ending. Snow totals reported were as follows: 4 inches in Athens, 3.5 inches in Englewood and Etowah, and 3.5 inches in Riceville.
Heavy snow fell across Monroe County during the daytime before transitioning to a light wintry mix before the storm came to an end. Snow totals are as follows: 4.5 inches of snow in Sweetwater per a public report, 3 inches of snow and a glaze of ice in Tellico Plains per a trained spotter, 3.5 inches of snow in Madisonville from a CoCoRaHS volunteer, and 3.1 inches in Tellico Plains from the CO-OP observer.
Heavy snow fell in Roane County, primarily across the southern half of the county, with lesser snowfall amounts in northern Roane. Still, a CoCoRaHS observer in Kingston reported 4 inches of snow, a public report in Kingston reported 3.5 inches, but the CO-OP observer noted only 2.5 inches of snow along with light sleet.
Light to heavy snow fell across Morgan County on the 10th before transitioning to wintry mix in the evening hours. The heaviest snowfall report of 4 inches came from outside of Wartburg TN.
A light snow that eventually yielded to mixed precipitation in the afternoon resulted in 2 inches of snow in Oneida.
Snow fell in a couple of bursts over Knox County, with wintry mix falling between roughly 1630 EST and 1900 EST based off reports from a trained spotter and the official airport station just south of Knox County. A light glaze of freezing rain was reported by a trained spotter during this event, less than .05. As far as snowfall, 3 to 4 inches of snow was observed in Karns, Farragut, Halls, Powell, Bearden, Maloneyville, and Forest Lake. A NWS employee reported a final total of 2.4 inches near Paulette.
Heavy snow fell across Loudon County during the day, before transitioning to a wintry mix and ending late at night. Reported snow amounts include a CoCoRaHS report of 4.3 inches of snow east of Loudon, 4 inches of snow in Lenoir City, 3 inches of snow elsewhere in Lenoir City, and 4.5 inches of snow by the COOP observer in Lenoir City.
Bursts of snow with intermittent light sleet and freezing rain eventually tapered off in the nighttime hours per Knoxville McGhee Tyson ASOS readings. The highest snowfall report came from the public outside of Maryville at 6 inches. The official TYS measurement was 4.9 inches of snow with a light glaze of ice from freezing rain and sleet. Other reports included 3 inches in Alcoa, 3 inches in Walland, 4.5 inches in Wildwood, 3 inches in Friendsville, and 3.5 inches in Greenback.
Light snow and wintry mix fell in Campbell County, the heaviest snowfall report was 2.5 inches in Jacksboro.
Light snow and wintry mix fell across Claiborne County, the highest reports received were: 2 inches in Speedwell, 2 inches in Harrogate, and 2.3 inches in Harrogate.
Light snow and wintry mix fell in Union County, 2 inches of snow was reported by the public in Rose Hill, 2.5 inches of snow was measured by the COOP observer in Maynardville.
Light snow and a wintry mix at times fell in Grainger County. Highest report was a CoCoRaHS report of 2.5 inches of snow outside of Rutledge. Another public report of 2 inches of snow in Washburn was also received.
Heavy snow fell across the southern portions of Anderson County, with lighter snowfall in the northern half of the county. Sleet and wintry mix mixed in at times in Anderson, a report near Briceville indicated .05 of freezing rain had occurred. The highest reports were observed by CoCoRaHS volunteers, including 4 inches in Oak Ridge, 3 inches east of Oak Ridge, 2.8 inches in Norris, and 2.5 inches of snow in Heiskell.
Two bouts of snow with wintry mix in between fell across Sevier County, resulting in heavy snowfall and a light glaze of ice on surfaces. The public reported 5 inches of snow in Sevierville, 4 inches of snow in Seymour, 4 inches of snow in Harrisburg, 3.5 inches of snow and sleet in Pigeon Forge, and an NWS Employee reported 3.3 inches of snow and ice near Strawberry Plains.
Light snow interrupted at times by wintry mix fell across Sullivan County, with a trained spotter near Bristol reporting a light glaze of ice along with 3.2 inches of snow. Kingsport and Blountville both reported 2 inches of snow, and Gray received 1.6 inches of snow.
Light snow with likely wintry mix based off neighboring reports fell across Washington County, with a trained spotter reporting 3 inches of snow in Avondale. Additionally, 2 inches of snow near Milligan College was measured, 2 inches in Limestone, and 2 inches in Johnson City.
The Mount LeConte Lodge COOP observer reported 2 inches of snow from the event, but the Newfound Gap mesonet station reported 8.2 inches of snowfall.
Snow fell across Carter County, with 4 inches of snow measured by the public in Sadie. The COOP observer in Elizabethton recorded 2.5 inches of snow.
A well trained spotter at 3800 feet in Roan Mountain recorded 4 inches of snowfall from the event.
A light snow fell in the lower elevations of the southeastern Greene Mountain Zone. A CoCoRaHS observer 10 miles south of Greeneville measured 2.3 inches of snow from this event.
Bursts of snow in the afternoon and evening hours with a break for an hour and a half of wintry mix led to an event total snowfall accumulation of 3.5 inches of snow in Chestnut Hill. A White Pine CoCoRaHS observer measured 2.8 inches of snow. Otherwise 2.3 inches of snow were measured in New Market and Piedmont.
Snow began in the early afternoon, generally small flakes. Then between 5 and 630 was a period of light sleet/freezing rain mix, snow then came in and light snow continued until gradually lessening and stopping before 11 PM. Measured total was 2.3 inches of snow with a SWE of 0.28.
A light snow fell across Hancock County, with 2.4 inches of snow measured in Kyles Ford.
A light snow fell in the Cocke Smoky Mountain zone, with a public report on Facebook reporting 2 inches of snowfall in Hartford.
Snow, likely interrupted at times with wintry mix, led to heavy snow reports in Cocke County. All reports were received on Facebook: 5.5 inches of snow in Newport, 3 inches in Cosby, and 3 inches of snow in Del Rio.
Light snow fell across Greene County, with 3 inches reported by the COOP observer in Greeneville. Additionally, a public person on social media reported 3 inches of snow in Greeneville. CoCoRaHS reports were 2.5 inches of snow in Midway and 1.7 inches of snow in Baileyton.
Light to heavy snow fell across Hawkins County, with 4 inches of snow reported by a CoCoRaHS observer in Church Hill, 4 inches of snow reported by the public in Mooresburg, and 2 inches of snow measured by a trained spotter in Surgoinsville.
Heavy snow fell in Unicoi County, with 5.8 inches of snow measured east of Rocky Fork, and 3.5 inches of snow measured in Erwin.
Heavy snowfall fell across Johnson County, with amateur radio reporting 5 inches of snow near Neva with additional snow falling after the report. Storm total reports included a public report of 6 inches of snow in Mountain City, 5 inches of snow in Butler, and the COOP observer reported 4.7 inches of snow in Mountain City.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Tennessee in 2025Every state in 2025This day in weather historyWarnings in Tennessee, January 2025
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 1235236, 1235237, 1235240, 1235270, 1235271, 1235283, 1235286, 1235982, 1235289, 1235479, 1235480, 1235268, 1235269, 1235946, 1235533, 1235544, 1235545, 1235547, 1235548, 1235549, 1235540, 1235933, 1235939, 1235940, 1235944, 1235941, 1235942, 1235945, 1235552, 1235551, 1235553, 1235935, 1235936, 1235943, 1235932, 1235937, 1235938.