A tropical wave was forecast to move off the west coast of Africa in the next day or two. Thereafter, some gradual development of the wave is possible during the middle to latter part of next week while it moves generally west-northwestward across the central tropical Atlantic.

"Dangerous heat" is forecast Monday, July 28, across parts of Florida, with a heat index expected across Northeast Florida ranging from 108 to 115, according to the National Weather Service Jacksonville. ➤ Extreme heat warning issued for Jacksonville area. Heat index could hit 115

Forecasters say a disturbance in the Atlantic has a 40-percent chance of cyclone formation over the next week.