More than 35 million Californians are under heat alerts as a persistent heat wave continues to affect the western United States. This pattern has led to record-breaking temperatures in some areas, while a separate tropical disturbance is expected to bring significant rainfall to central Florida and the Gulf Coast.
Southern and central California are experiencing dangerous conditions, with Los Angeles recording four consecutive days of temperatures above 100 degrees Fahrenheit, a historical first for October. The heat wave is forecast to continue through the middle of the week, with extreme heat warnings in place across Southern California through Thursday. Coastal areas from San Diego to Los Angeles could see temperatures between 90 and 100 degrees, while inland valleys might reach up to 106 degrees. Heat advisories are also in effect across central California, with temperatures potentially reaching the low 100s from Bakersfield to Sacramento.
Overnight lows are also remaining well above average, exacerbating the danger for residents, particularly those without access to air conditioning. The current heat wave is expected to break by the weekend.
Meanwhile, a stalling frontal system in central Florida is expected to continue bringing daily rain showers to the state through at least Thursday. Some areas could receive up to 2 inches of rain per day, with potential totals of 1 to 4 inches across central Florida by Thursday, and isolated areas receiving 4 to 8 inches. The flood threat is considered low, as the region is accustomed to handling rainfall.
By Friday, a potential tropical disturbance moving north from the Gulf of Mexico is expected to approach the Florida Panhandle. Forecasters anticipate a tropical depression forming within the next 48 hours, with the potential to strengthen into a tropical storm or even a hurricane. This system is likely to make landfall along the central Gulf Coast over the weekend, possibly on Saturday, though confidence in the exact timing and strength remains low.
From Friday to Sunday, the central Gulf Coast, stretching from New Orleans to Tallahassee, Florida, could receive 2 to 5 inches of rain. The broader South region may see 1 to 4 inches of rain over the same period. While these areas can generally absorb significant rainfall, urban areas could experience localized flooding and standing water.