Tropical Moisture Brings Slight Risk of Excessive Rainfall to the Southwest; Strong to Locally Severe Storms on the Plains
Heavy rain and flash flooding are possible across portions of the Southwest through Friday, where Flood Watches are in effect. Strong to locally severe thunderstorms are possible today across portions of the Plains. A tropical wave is causing heavy rainfall in Puerto Rico and the Virgin Islands, which may cause urban and small stream flooding and landslides today. Read More >
| NWS Forecast for: Lake Pontchartrain and Lake Maurepas (GMZ530) Issued by: National Weather Service New Orleans/Baton Rouge, LA Last Update: 701 AM CDT Thu Sep 18 2025 |  |
| Today: Northeast winds around 5 knots, becoming east this afternoon. Waves 1 foot or less, then around 2 feet this afternoon. Tonight: Southeast winds 5 to 10 knots, becoming southwest after midnight. Waves 1 foot or less. Friday: Northeast winds around 5 knots, becoming east in the afternoon. Waves 1 foot or less. Friday Night: South winds around 5 knots, becoming west after midnight. Waves 1 foot or less. Saturday: North winds around 5 knots, becoming east in the afternoon. Waves 1 foot or less. Saturday Night: South winds around 5 knots, becoming west around 5 knots after midnight. Waves 1 foot or less. Sunday: North winds around 5 knots, becoming southeast in the afternoon. Waves 1 foot or less, then around 2 feet in the afternoon. Sunday Night: Southeast winds 5 to 10 knots, becoming south after midnight. Waves 1 to 2 feet in the evening, then 1 foot or less. Monday: East winds 5 to 10 knots. Waves 1 foot or less, then around 2 feet in the afternoon. A slight chance of showers and thunderstorms in the afternoon. Monday Night: Southeast winds 5 to 10 knots. Waves 1 to 2 feet in the evening, then 1 foot or less. winds and waves higher in and near thunderstorms. | |
| Zone Forecast: Lake Pontchartrain and Lake Maurepas (GMZ530) | |
Visit your local NWS office at: https://www.weather.gov/lix |