Update: The National Weather Service has issued a Heat Advisory for Monday and Tuesday across South Alabama, with an Extreme Heat Warning in effect Tuesday for coastal communities, where heat index values could climb as high as 110 to 115 degrees during peak afternoon hours. Forecasters say Tuesday is on pace to be the hottest day of the stretch, with highs near or above 100 degrees possible away from the coast.
Heat remains the top weather concern along the Gulf Coast, with forecasters warning that dangerously high heat index values will continue through the coming week.
Afternoon temperatures in the lower to middle 90s, combined with tropical humidity, are expected to push heat index readings into the 103- to 108-degree range each afternoon. Forecasters are urging residents to take precautions: drink plenty of water even without feeling thirsty, take frequent breaks during outdoor work, wear lightweight and light-colored clothing, never leave children or pets inside parked vehicles, check on elderly neighbors and anyone without reliable air conditioning, and limit strenuous outdoor activity between roughly noon and 6 p.m., the hottest stretch of the day.
Even healthy adults can develop heat-related illness after prolonged exposure, and forecasters are encouraging residents to know the warning signs of heat exhaustion and heat stroke and move indoors immediately if symptoms appear.
Overnight conditions will stay warm and humid, with temperatures only falling into the middle to upper 70s by daybreak and dew points remaining well into the 70s. Areas that see rain during the day could see patchy fog develop early the following morning, though widespread dense fog is not expected.
Daytime heating and a weak sea breeze will continue to spark scattered afternoon showers and thunderstorms, though not everyone will see rain. Any storm that develops will be capable of frequent lightning, brief heavy downpours, wind gusts between 30 and 45 mph, and localized ponding on roadways.
Looking further ahead, the broader weather pattern is expected to change little through much of the week, with high pressure holding firm across the southern United States while lingering Gulf moisture fuels daily sea-breeze storms. Expect high temperatures generally in the lower to middle 90s, overnight lows in the middle to upper 70s, afternoon rain chances of roughly 30-50%, and heat index values consistently between 103 and 108 degrees. While widespread severe weather is not expected, any stronger storm could briefly bring gusty winds, dangerous lightning and very heavy rainfall.
At the beach, water temperatures remain in the middle to upper 80s, and visitors are urged to check posted beach flags before entering the water. Afternoon sea breeze storms can develop quickly, and anyone on the sand or on the water should head indoors immediately if thunder is heard. UV levels remain very high, so sunscreen, hats, sunglasses and frequent hydration are strongly recommended. In the tropics, the Atlantic Basin remains quiet, with no organized systems currently expected to threaten the central Gulf Coast in the coming days.