MSHA: Winter Alert Campaign Continues Until March
MSHA’s annual Winter Alert campaign reminds miners and mine operators of the increased hazards of colder weather.

When the barometric pressure drops during colder weather, methane can migrate more easily into the mine atmosphere, increasing the risk of an explosion. Dry winter air also results in drier conditions underground, allowing coal dust to become suspended in the mine atmosphere, increasing the danger of an explosion.

Throughout the campaign, MSHA personnel regularly visits mines throughout the country to heighten awareness of the changing conditions that occur during winter months and distributes materials that focus on best practices.

“The cold winter months bring an increased risk of underground coal mine explosions, as well as an increase in hazards associated with ice and snow that collect at surface facilities and preparation plants,” said David Zatezalo, Assistant Secretary of Labor for Mine Safety and Health. 
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