Louisiana, Mississippi Severe Flash Flood Warning | Effective 06/18/2026 12:09

Headline: 
Flash Flood Warning issued June 18 at 2:09PM CDT until June 18 at 3:30PM CDT by NWS New Orleans LA
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
June 18, 2026 - 12:09pm
Expires: 
June 18, 2026 - 1:30pm
Description: 
FFWLIX The National Weather Service in New Orleans has extended the * Flash Flood Warning for... Southeastern St. Tammany Parish in southeastern Louisiana... Hancock County in southern Mississippi... Northern Harrison County in southern Mississippi... Southeastern Pearl River County in southern Mississippi... * Until 330 PM CDT. * At 209 PM CDT, emergency management reported multiple roads impassable due to flooding across rural Hancock, northwest Harrison, and Pearl River Counties. Between 9 and 16 inches of rain have fallen. Additional rainfall amounts up to 2 inches are possible in the warned area. Flash flooding is already occurring. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Emergency management reported. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. * Some locations that will experience flash flooding include... Slidell, Diamondhead, Eden Isle, Pearl River, Kiln, Stennis Space Center, Mcneil, Pearlington, Lyman, Saucier and Slidell Airport. This includes the following streams and drainages... Bridge Branch, Bacon, Bayou, Talla, Bayou, Reed Branch, Saucier Creek, Coco, Bayou, Hester Creek, Biloxi River, Bayou la Croix, Dead Tiger Creek, Talisheek Creek, West Pearl River, Bigfoot Creek, Big Creek, Cypress Creek, De Lisle Bayou, Hickory Creek, Liberty Bayou, Mallini Bayou, Pigeon Roost Branch, Fritz Creek, Tuxachanie Creek, Flat Branch, Pasture Branch, Beaver Dam Creek, Bell Creek, Boggy Branch, Big Branch Bayou, Ramsey Creek, East Hobolochitto Creek, Everett Branch, Juniper Creek, Stall Branch, White Cypress Creek, Crow Creek, Cowpen Creek, Beaver Dam Branch, Long Branch, Crane Creek, Moran Creek, Big Branch, Picayune Creek, Bogue Chitto, Lacombe Bayou, Bernard, Bayou, Polar Branch, Rotten Bayou, Walker Creek, Mill Branch, Mill Creek, Sandy Creek, Clear Branch, Wolf Branch, Lasalle, Bayou, Pearl River, Dutch Branch, Catahoula Creek, Pen Branch, Bonfouca, Bayou, Wolf River, George Branch, Tchoutacabouffa River, Playground Branch, Railroad Creek, Jourdan River, Turkey Creek, Redfish Creek, Vincent, Bayou, Paquet, Bayou, Silver Run, Choctaw Creek, Little Biloxi River and Murder Creek.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Stay away or be swept away. River banks and culverts can become unstable and unsafe. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.
Area Description: 
St. Tammany, LA; Hancock, MS; Harrison, MS; Pearl River, MS
Forcast Office: 
NWS New Orleans LA