Weather Alerts For Bay Saint Louis, MS
Heat Advisory
-# HEADLINE -------------------- HEAT ADVISORY IN EFFECT FROM 10 AM TO 7 PM CDT FRIDAY # DETAILS -------------------- WHAT Heat index values up to 110 expected. WHERE Portions of southeast Louisiana and southern Mississippi. WHEN From 10 AM to 7 PM CDT Friday. IMPACTS Hot temperatures and high humidity may cause heat illnesses. ISSUED AT Thursday, June 18, 2026 at 10:58 AM CDT ISSUED BY National Weather Service New Orleans LA HEADER URGENT - WEATHER MESSAGE # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. # AREAS AFFECTED -------------------- Central Plaquemines, Iberville, Lower Tangipahoa, Northern St. Tammany, St. John The Baptist, Amite, Assumption, Central Jefferson, Central St. Charles, Central Tangipahoa, Coastal Jefferson, East Baton Rouge, East Feliciana, Eastern Ascension, Eastern Orleans, Lower Lafourche, Lower Plaquemines, Lower St. Bernard, Lower St. Charles, Lower Terrebonne, Northern Hancock, Northern Livingston, Northern Tangipahoa, Pearl River, Pike, Pointe Coupee, Southeast St. Tammany, Southern Hancock, Southern Livingston, Southwestern St. Tammany, St. Helena, St. James, Upper Jefferson, Upper Lafourche, Upper Plaquemines, Upper St. Bernard, Upper St. Charles, Upper Terrebonne, Walthall, Washington, West Baton Rouge, West Feliciana, Western Ascension, Western Orleans, Wilkinson Including the cities of Reserve, Bay St. Louis, Tickfaw, Lutcher, Mandeville, Kenner, St. Francisville, Cocodrie, Covington, Gloster, Whitehall, Kentwood, Belle Chasse, Waveland, Marrero, Felps, Galliano, Plaquemine, Easleyville, Lockport, Alliance, Yscloskey, Westwego, Slidell, Leeville, Meraux, Woodville, Houma, Shell Beach, Pointe A La Hache, Baton Rouge, Bonnet Carre Spillway, Braithwaite, Chauvin, McComb, Walker, White Castle, Port Sulphur, Centreville, Wakefield, Delacroix, Luling, Dolorosa, Fort Adams, Laplace, Salem, French Settlement, Bogalusa, Port Allen, Boutte, Smithdale, Lettsworth, Montpelier, McNeil, Sorrento, Hahnville, Poplarville, Spillman, Tylertown, Geismar, Enon, New Roads, Destrehan, Folsom, Chalmette, Montz, Darlington, Sellers, Harahan, Gretna, Violet, Springfield, Ponchatoula, Thibodaux, Akers, Kiln, Pearlington, Diamondhead, Jean Lafitte, Larose, Gonzales, Donaldsonville, Gillsburg, Brusly, Norco, Dexter, Cut Off, Dulac, Clinton, Madisonville, Pierre Part, Liberty, Acy, Montegut, Golden Meadow, Grand Isle, Bush, Lafitte, Hammond, Roseland, Barataria, Bayou Cane, Picayune, Buras, Crossroads, Bayou Sorrel, Gramercy, Raceland, Amite, Independence, Denham Springs, Livingston, Killian, Franklinton, Prairieville, Necaise, East New Orleans, Robert, Jackson, Convent, Livonia, Metairie, Addis, Labadieville, Paincourtville, New Orleans, Wilmer, and Greensburg
Flood Warning
-# HEADLINE -------------------- FLOOD WARNING IN EFFECT UNTIL 930 PM CDT THIS EVENING # DETAILS -------------------- WHAT Urban areas and small streams flooding caused by excessive rainfall is expected. WHERE Southeastern St. Tammany Parish in southeastern Louisiana... Hancock County in southern Mississippi... Harrison County in southern Mississippi... Southeastern Pearl River County in southern Mississippi... WHEN Until 930 PM CDT. IMPACTS Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. ADDITIONAL DETAILS - At 636 PM CDT, Doppler radar indicated heavy rain due to thunderstorms. Flooding continues in portions of the warned area. Between 8 and 16 inches of rain have fallen. - Flooding impacts will continue, but no additional rainfall is expected. - SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE - Slidell, Picayune, Bay St. Louis, Waveland, Diamondhead, Eden Isle, Pearl River, Kiln, Stennis Space Center, Shoreline Park, Mcneil, Pearlington, Lyman, Saucier and Slidell Airport. - http://www.weather.gov/safety/flood ISSUED AT Thursday, June 18, 2026 at 6:36 PM CDT ISSUED BY National Weather Service New Orleans LA HEADER BULLETIN - IMMEDIATE BROADCAST REQUESTED | Flood Warning # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. # AREAS AFFECTED -------------------- Hancock MS, Harrison MS, Pearl River MS, St. Tammany LA
Flood Watch
-# HEADLINE -------------------- FLOOD WATCH REMAINS IN EFFECT THROUGH FRIDAY MORNING # DETAILS -------------------- 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 ISSUED AT Thursday, June 18, 2026 at 2:18 PM CDT ISSUED BY National Weather Service New Orleans LA HEADER Flood Watch # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- 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 # AREAS AFFECTED -------------------- Central Plaquemines, Iberville, Southeast St. Tammany, Southern Harrison, St. John The Baptist, Amite, Assumption, Central Jefferson, Central St. Charles, Central Tangipahoa, East Baton Rouge, East Feliciana, Eastern Ascension, Eastern Orleans, Lower St. Charles, Lower Tangipahoa, Northern Hancock, Northern Harrison, Northern Jackson, Northern Livingston, Northern St. Tammany, Northern Tangipahoa, Pearl River, Pike, Pointe Coupee, Southern Hancock, Southern Jackson, Southern Livingston, Southwestern St. Tammany, St. Helena, St. James, Upper Jefferson, Upper Lafourche, Upper Plaquemines, Upper St. Bernard, Upper St. Charles, Upper Terrebonne, Walthall, Washington, West Baton Rouge, West Feliciana, Western Ascension, Western Orleans, Wilkinson Including the cities of Reserve, Bay St. Louis, Tickfaw, Ocean Springs, Lutcher, Mandeville, Kenner, St. Francisville, Covington, Gautier, Gloster, Whitehall, Kentwood, Belle Chasse, Waveland, Marrero, Felps, Gulfport, Plaquemine, Easleyville, Lockport, Alliance, Westwego, Slidell, Pass Christian, Meraux, Woodville, Houma, Baton Rouge, Bonnet Carre Spillway, Braithwaite, McComb, Walker, White Castle, Saucier, Centreville, Wakefield, Luling, Dolorosa, Lyman, Fort Adams, Laplace, Salem, French Settlement, St. Martin, Bogalusa, Port Allen, Boutte, Smithdale, Lettsworth, Montpelier, McNeil, Sorrento, Hahnville, Poplarville, Spillman, Tylertown, Geismar, Enon, New Roads, Destrehan, Moss Point, Wade, Pascagoula, Folsom, Chalmette, Montz, Darlington, Sellers, Harahan, Gretna, Violet, Springfield, Ponchatoula, Thibodaux, Akers, Kiln, Pearlington, Diamondhead, Jean Lafitte, Gonzales, Donaldsonville, Gillsburg, Brusly, Norco, Dexter, Clinton, Madisonville, Pierre Part, Liberty, Acy, Bush, Lafitte, Hammond, Roseland, Barataria, Bayou Cane, Picayune, Crossroads, Bayou Sorrel, Gramercy, Raceland, Amite, Independence, Denham Springs, Livingston, Vancleave, Killian, Franklinton, Prairieville, Necaise, East New Orleans, Robert, Jackson, Convent, Livonia, Long Beach, Metairie, Biloxi, Addis, Escatawpa, Labadieville, Paincourtville, New Orleans, Wilmer, and Greensburg
Severe Storm Risk
-There is a Marginal Severe Storm Risk for your location. Continue reading for today's outlook from the National Weather Service's Storm Prediction Center. -------------------- National Severe Storm Outlook THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF THE SOUTHEAST AND NORTH-CENTRAL TEXAS SUMMARY Isolated brief tornadoes and damaging gusts remain possible from far southern Alabama into the parts of the Florida Panhandle and across much of Georgia. Scattered damaging winds are likely this evening into tonight over much of north-central Texas. From far southern AL across GA and into SC A line of thunderstorms currently extends north-south across central GA ahead of the midlevel wave. The environment is very moist and 0-1 SRH is over 250 m2/s2 at the JGX radar. Minimal CIN due to the high PWAT air mass should thus continue to support QLCS tornado potential as the line of storms moves across GA, and possibly into SC later tonight. Farther southwest, robust thunderstorms have developed near Mobile and will move eastward across far southern AL and the northern and western FL Panhandle. A very moist and unstable air mass resides here as well, and stronger westerly flow and shear around the southern periphery of the upper system will continue to support a narrow corridor of brief tornado or damaging wind potential. For more information see mesoscale discussion 1191. Much of north-central Texas Hot conditions exist across the Abilene to San Angelo area this evening, with little CIN. The 00Z MAF sounding shows a deep mixed layer and over 2000 J/kg MLCAPE with a near 60 F dewpoint. Just east of the low-level lapse rate plume, dewpoints are well into the 70s F, with 3000-4000 J/kg MLCAPE into central TX. Storms are already beginning to form over west-central TX as a cold front pushes south into the storm-ready air mass. Winds around 850 mb will also increase out of the southeast tonight, aiding unstable inflow into a developing cluster of storms. Shear and steering currents aloft are weak, but severe outflow is expected to affect much of northwest into north-central TX later this evening into tonight. A general southeastward propagation is most likely, into the moist plume. Conditions appear favorable for damaging winds, and localized significant wind gusts cannot be ruled out. Given such high instability, some of the stronger storms may briefly produce hail.
