Winter Storm — Upper St. Martin, Louisiana

2014-01-23 to 2014-01-24 · Upper St. Martin, Louisiana

Event narrative

Freezing rain spread into northern portions of Saint Martin Parish during the late evening of the 23rd and gradually changed over to sleet for portions of the parish during the morning of the 24th. Ice accumulations ranged from around one tenth to around a quarter of an inch across the parish with sleet accumulations generally around half an inch or less.

Wider weather episode

A cold air mass plunged south to the gulf coast while an upper level disturbance moved across the region. Rain, snow, and sleet moved into the region during the late afternoon of the 23rd and gradually turned to all snow across Central Louisiana. Farther south along highway 190 and Interstate 10 sleet and freezing was the dominate precipitation. At the coast mostly rain and freezing rain occurred. Area bridges and overpasses iced over and most were closed. Around 200 traffic accidents occurred during the event with 2 becoming fatal.

Source: NOAA Storm Events Database, event_id 494342. Narrative written by the NWS forecast office that issued the report.