Lake Charles, Louisiana - A winter storm watch has been issued for parts of Louisiana and southeast Texas, with forecasters warning that freezing rain and significant ice accumulations are possible from Saturday afternoon through Sunday afternoon.
The National Weather Service office in Lake Charles reports that a colder air mass will move into the region behind a strong cold front this weekend. As that cold air settles in, ongoing showers are expected to change to freezing rain in some areas, creating hazardous travel conditions.
Up To Four-Tenths Of An Inch Of Ice Possible
Forecasters say total ice accumulations could range between one-tenth and four-tenths of an inch across portions of central, south central, southwest, and west central Louisiana, as well as parts of southeast Texas.
That amount of ice is enough to create slick roads, especially on elevated surfaces such as bridges and overpasses. It can also weigh down power lines, potentially leading to power disruptions if enough ice builds up.
Freezing rain occurs when snowflakes melt into rain as they fall through a warm layer of air, then pass through a shallow layer of below-freezing air near the surface. The raindrops become supercooled and freeze on contact with exposed surfaces, forming a layer of ice. Even a thin glaze can make driving treacherous.
Timing: Saturday Afternoon Through Sunday Afternoon
The winter storm watch is in effect from Saturday afternoon through Sunday afternoon. Showers are expected to continue into the weekend, but the risk of icing increases as temperatures fall behind the cold front.
The blend of lingering moisture and dropping temperatures sets the stage for freezing rain. The most hazardous conditions are expected during the period when surface temperatures hover at or below 32 degrees while rain is still ongoing.
Weather officials are emphasizing that elevated roadways and bridges will be the first and fastest to freeze. These structures cool more quickly than ground-level roads because air can circulate both above and below them, pulling away heat.
Travel And Infrastructure Impacts
The National Weather Service warns that roads, and especially bridges and overpasses, will likely become slick and hazardous where freezing rain occurs. Even if snowfall is not a major factor, ice alone can significantly affect travel and infrastructure.
Potential impacts include:
- Dangerous driving conditions: Ice on roadways can lead to loss of traction, making it hard for drivers to stop, turn, or climb hills safely.
- Higher risk on elevated surfaces: Ramps, overpasses, and long-span bridges are particularly vulnerable to ice buildup and may become unsafe before other roads.
- Strain on power infrastructure: Ice accumulation on power lines and tree branches can cause sagging or breakage if amounts approach the higher end of the forecast range.
Residents who must travel during the watch period are advised to check local road conditions, allow extra time, reduce speed, and use caution on any surface that appears wet, since it may actually be ice.
Preparation Ahead Of The Storm
While the forecast is still being refined, officials generally recommend that households and businesses prepare when ice is in the forecast. Common steps include:
- Ensuring vehicles are fueled and winter-ready
- Having flashlights, batteries, and basic supplies available in case of power interruptions
- Avoiding nonessential travel when icing is expected or underway
- Monitoring updates from the National Weather Service and local authorities
Because ice storms can vary significantly over short distances, conditions may differ from one community to another, even within the same parish or county.
Forecast May Be Updated
The winter storm watch is an early alert that significant icing is possible, not yet a certainty. As the storm system approaches, meteorologists will continue to refine predictions on where the freezing line sets up and how long freezing rain persists.