Louisiana, Mississippi Severe Flood Watch | Effective 06/18/2026 12:18

Headline: 
Flood Watch issued June 18 at 2:18PM CDT until June 19 at 7:00AM CDT by NWS New Orleans LA
Event: 
Flood Watch
Urgency: 
Future
Effective: 
June 18, 2026 - 12:18pm
Expires: 
June 19, 2026 - 2:30am
Description: 
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of southeast Louisiana, including the following parishes, Assumption, Central Jefferson, Central Plaquemines, Central St. Charles, Central Tangipahoa, East Baton Rouge, East Feliciana, Eastern Ascension, Eastern Orleans, Iberville, Lower St. Charles, Lower Tangipahoa, Northern Livingston, Northern St. Tammany, Northern Tangipahoa, Pointe Coupee, Southeast St. Tammany, Southern Livingston, Southwestern St. Tammany, St. Helena, St. James, St. John The Baptist, Upper Jefferson, Upper Lafourche, Upper Plaquemines, Upper St. Bernard, Upper St. Charles, Upper Terrebonne, Washington, West Baton Rouge, West Feliciana, Western Ascension and Western Orleans and southern Mississippi, including the following areas, Amite, Northern Hancock, Northern Harrison, Northern Jackson, Pearl River, Pike, Southern Hancock, Southern Harrison, Southern Jackson, Walthall and Wilkinson. * WHEN...Through Friday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Extensive street flooding and flooding of creeks and rivers are possible. Area creeks and streams are running high and could flood with more heavy rain. * ADDITIONAL DETAILS... - Multiple rounds of showers and thunderstorms with locally very heavy rainfall are expected today and potentially continuing through tonight. A large area with rainfall amounts of 4 to 7 inches is expected in the watch area through tonight with isolated totals considerably higher. - http://www.weather.gov/safety/flood
Instruction: 
You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. Stay weather aware and be ready to take action if Flash Flood Warnings are issued, particularly wireless emergency alert Flash Flood Warnings for Considerable and/or Catastrophic Flooding
Area Description: 
Pointe Coupee; West Feliciana; East Feliciana; St. Helena; Washington; Iberville; West Baton Rouge; East Baton Rouge; Assumption; St. James; St. John The Baptist; Upper St. Bernard; Northern Tangipahoa; Southeast St. Tammany; Western Orleans; Eastern Orleans; Northern St. Tammany; Southwestern St. Tammany; Central Tangipahoa; Lower Tangipahoa; Northern Livingston; Southern Livingston; Western Ascension; Eastern Ascension; Upper Jefferson; Upper Plaquemines; Central Plaquemines; Central Jefferson; Upper Lafourche; Upper Terrebonne; Upper St. Charles; Central St. Charles; Lower St. Charles; Wilkinson; Amite; Pike; Walthall; Pearl River; Northern Hancock; Northern Harrison; Northern Jackson; Southern Hancock; Southern Harrison; Southern Jackson
Forcast Office: 
NWS New Orleans LA