Indianapolis, January 28, 2026
Indianapolis, Indiana, faced a significant snowfall of 7 to 13 inches over the weekend, yet the snow has rapidly melted away despite sub-freezing temperatures. Factors like solar radiation, wind, humidity, and ground temperature contributed to this unusual phenomenon, prompting discussions on snow behavior under freezing conditions. The recent weather patterns highlight the complex interplay of environmental factors affecting snow persistence.
Indianapolis, IN: Snow Disappears Despite Sub-Freezing Temperatures
Indianapolis, Indiana, experienced a significant snowfall over the weekend, with accumulations ranging from 7 to 13 inches. Despite temperatures well below freezing, the snow has rapidly diminished, raising questions about the factors contributing to its disappearance.
Key Factors Influencing Snow Disappearance
Several meteorological processes contribute to the melting and sublimation of snow, even in freezing conditions:
- Solar Radiation: Direct sunlight can cause snow to melt, even when air temperatures are below freezing. The snow’s high albedo reflects most sunlight, but some absorption still occurs, leading to gradual melting.
- Wind: Wind can enhance sublimation, the process where snow directly converts from solid to gas without becoming liquid. This effect is more pronounced in dry, windy conditions.
- Atmospheric Humidity: Low humidity levels can increase sublimation rates, causing snow to evaporate directly into the air.
- Ground Temperature: If the ground temperature is above freezing, heat from the ground can melt the snow from below, even if the air temperature remains low.
Recent Weather Conditions in Indianapolis
Over the past few days, Indianapolis has experienced the following temperatures:
- January 26, 2026: High of -11.1°C (12°F), low of -18.3°C (-1°F)
- January 27, 2026: High of -6.7°C (20°F), low of -16.7°C (2°F)
- January 28, 2026: High of -73.3°C (-99.9°F), low of -73.3°C (-99.9°F)
The extreme low temperature recorded on January 28 is likely due to a data error, as such temperatures are not typical for this region.
Understanding Snow Persistence and Disappearance
Snow persistence is influenced by various factors, including:
- Temperature: Consistently below-freezing temperatures are necessary for snow to remain on the ground. However, brief periods of warmer temperatures can lead to melting.
- Sunlight: Direct sunlight can cause snow to melt, even when air temperatures are below freezing. The snow’s high albedo reflects most sunlight, but some absorption still occurs, leading to gradual melting.
- Wind: Wind can enhance sublimation, the process where snow directly converts from solid to gas without becoming liquid. This effect is more pronounced in dry, windy conditions.
- Humidity: Low humidity levels can increase sublimation rates, causing snow to evaporate directly into the air.
- Ground Temperature: If the ground temperature is above freezing, heat from the ground can melt the snow from below, even if the air temperature remains low.
Understanding these factors is crucial for predicting snow behavior and managing winter weather impacts effectively.
Conclusion
While Indianapolis has experienced sub-freezing temperatures, the rapid disappearance of the recent snowfall can be attributed to a combination of solar radiation, wind, atmospheric humidity, and ground temperature. These factors collectively influence the melting and sublimation processes, leading to the observed reduction in snow cover.
Frequently Asked Questions (FAQ)
Why did the snow melt despite freezing temperatures?
The snow melted due to factors such as solar radiation, wind, atmospheric humidity, and ground temperature, which can cause snow to melt or sublimate even in freezing conditions.
What is sublimation in the context of snow?
Sublimation is the process where snow directly converts from solid to gas without becoming liquid. This effect is more pronounced in dry, windy conditions.
How does sunlight affect snow melting?
Direct sunlight can cause snow to melt, even when air temperatures are below freezing. The snow’s high albedo reflects most sunlight, but some absorption still occurs, leading to gradual melting.
Can wind cause snow to disappear?
Yes, wind can enhance sublimation, causing snow to evaporate directly into the air, especially in dry, windy conditions.
Does ground temperature influence snow melting?
If the ground temperature is above freezing, heat from the ground can melt the snow from below, even if the air temperature remains low.
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Author: STAFF HERE INDIANAPOLIS WRITER
The INDIANAPOLIS STAFF WRITER represents the experienced team at HEREIndianapolis.com, your go-to source for actionable local news and information in Indianapolis, Marion County, and beyond. Specializing in "news you can use," we cover essential topics like product reviews for personal and business needs, local business directories, politics, real estate trends, neighborhood insights, and state news affecting the area—with deep expertise drawn from years of dedicated reporting and strong community input, including local press releases and business updates. We deliver top reporting on high-value events such as the Indianapolis 500, Indy Jazz Fest, and the Indiana State Fair. Our coverage extends to key organizations like the Indy Chamber and Visit Indy, plus leading businesses in motorsports and healthcare that power the local economy such as Indianapolis Motor Speedway and IU Health. As part of the broader HERE network, we provide comprehensive, credible insights into Indiana's dynamic landscape.
