February 12-13, 2010 Southeastern Winter Storm

The February 12-13, 2010 Southeastern Winter Storm (also known as the Valentine's Weekend Snowstorm, the February 12, 2010 Deep South Snow Event, or part of the historic 2009-2010 winter season's rare southern snow outbreak) was an unusual late-winter system that brought measurable snowfall to much of the Deep South, including parts of Texas, Alabama, Georgia, the Florida Panhandle, and extending into South Carolina and eastern North Carolina. Occurring February 12 into February 13, 2010, it produced heavy snow in a band across central Georgia and southern Alabama (by Southern standards), with lighter accumulations farther south and east. This event contributed to a remarkable moment when 49 of the 50 U.S. states had snow on the ground simultaneously (Hawaii the exception), amid one of the snowiest winters on record for many areas. It was notable for its southern reach during a winter already featuring multiple major nor'easters farther north.

Meteorological Setup

A surface low-pressure system developed over the western Gulf of Mexico and tracked eastward/northeastward, intensifying as it moved across northern Florida and off the Southeast coast. A strong mid-level shortwave trough from the Desert Southwest progressed eastward, enhancing lift and moisture advection over a deep cold air mass already in place across the Southeast. This created a classic overrunning pattern with Gulf/Atlantic moisture ascending over the cold dome, producing heavy snow in a southwest-northeast band where temperatures favored high snow ratios (up to 10:1 in colder pockets like Atlanta and Troy, AL, dropping to ~4:1 near the rain-snow line in Dothan, AL). The low deepened rapidly off the Florida/Georgia coast, with strong vorticity advection and cyclogenesis contributing to persistent bands. Precipitation transitioned quickly from rain/sleet to snow as the cold air held firm, with heaviest falling February 12 afternoon/evening before tapering west-to-east overnight into the 13th.

Impacts

The heavy, wet snow (especially in eastern NC) combined with cold and some wind caused notable issues in unprepared Southern areas:

Snowfall Amounts and Distribution

Snow began in the afternoon of February 12 in many areas, peaking evening/overnight, with heaviest in a focused band from southern Alabama through central Georgia. Accumulations were significant for the Deep South:

South Carolina: Spread into much of state late February 12; 3-6 inches in parts (heavier near coast/central in transition with NC).
North Carolina: Eastern: up to 9 inches near coast (heaviest in bands); central/eastern: 3-9 inches, with heavy wet snow.
Georgia: Central/northern: 3-6 inches common; heaviest in southwest-northeast band (e.g., Lumpkin/Stewart County: higher in core); north/central GA: 2-6 inches; Atlanta area: measurable (up to several inches in spots); south central: lighter but accumulating.
Alabama: Southern/central: up to 6 inches in portions (e.g., Evergreen/Conecuh County heavy); Mobile: light accumulations; widespread measurable across much of state.
Florida: Panhandle: measurable snow/flurries (e.g., near Tallahassee area: up to several inches in northern parts); rare for the region.
Other: Texas to Florida Panhandle: measurable; broader Southeast: tapering to traces/light in southern edges.

Many totals were rare for February in the Deep South, with the band from AL-GA producing the deepest Southern accumulations.

Temperature Records

The event occurred amid a prolonged cold pattern in the 2009-2010 winter. Temperatures during snowfall were in the 20s-30s°F, supporting efficient snow production. Pre- and post-storm Arctic air kept readings well below normal, with lows in the teens/single digits in places. No major all-time February lows were set specifically on these dates, but the winter featured record cold in parts of the Southeast, aiding snow preservation and contributing to widespread frozen ground/roads.

Transportation

Hazardous roads with snow/slush freezing overnight (e.g., icy conditions late February 12 into 13 in GA); accidents and slowdowns on interstates; schools/businesses closed in affected counties; travel disruptions in GA, AL, SC, eastern NC.

Utilities and Infrastructure

Power outages from heavy/wet snow on lines/trees (noted in eastern NC with broken limbs); some structural strain.

Human Toll

Limited direct fatalities reported, but exposure/accident risks in rural/cold areas; emergency services strained.

Economic

Agriculture/poultry potential hits from cold/snow; commerce/schools halted briefly; part of broader 2010 winter disruptions.

Other Disruptions

Daily life interrupted; residents surprised by Valentine's weekend snow; quick melt in marginal areas but lingering in colder pockets.

Notes of Interest

Rarity and Legacy: This storm's Deep South reach (measurable snow near Gulf) was extraordinary, helping set the stage for 49-state snow cover on February 13, 2010—a rare climatological event. It fits into the exceptional 2009-2010 winter (snowiest for many Mid-Atlantic/Southeast spots due to multiple storms), though totals were modest compared to nor'easters farther north (e.g., Snowmageddon Feb 5-6).
High snow-to-liquid ratios in cold pockets; heavy wet snow in eastern NC caused limb/branch breakage; southernmost significant accumulations in decades for parts of AL/GA/FL.
Cultural Impact: Remembered as a "surprise" Southern snow during Valentine's weekend; NWS summaries and maps highlight rare coverage; part of lore in GA/AL/FL Panhandle as one of the better snow events in modern records.
Comparison to Recent Events: Unlike coastal-focused 1989 Christmas or band-heavy 1973, this was a broader Gulf-to-Atlantic system with Deep South emphasis; totals paled vs. 1993 Superstorm but impressive for latitude and in context of 2010's snowy pattern.

Bottom line: his was a fun, rare Deep South snow treat amid a blockbuster winter.