In the Pacific, forecasters are watching five systems, including Hurricane Iona and Tropical Storm Keli. Iona has strengthened into a major hurricane with maximum sustained winds of 115 mph about 790 miles south-southeast of Honolulu, Hawaii.

You'll want to keep the umbrella handy, too, because scattered showers and storms develop between 2 p.m. and 4 p.m., moving west to east, and ending before 9 p.m.

As we discussed in Friday’s newsletter, the Atlantic is beginning its pivot into the traditionally busiest 6-week stretch of the hurricane season.

That being said, we're keeping an eye on a few tropical waves in the Atlantic. Tropical waves are the precursor to more organized tropical storms and systems that can ultimately develop into named storms. One tropical wave exists near the far eastern Caribbean and a second has just emerged off the west coast of Africa into the Atlantic.

The National Hurricane Center is tracking four tropical waves. Sweltering temps continue for Florida, heat advisories are in effect..

AccuWeather hurricane experts are monitoring three areas for tropical development into the first part of August, including near the Southeast coast.

The disturbance was producing disorganized showers and thunderstorms about 1,000 miles east-southeast of the Lesser Antilles as of 7 a.m. Sunday. It was moving west-northwest at about 10 mph, according to the NHC.

As a weeks-long heat wave threatens more than 200 million in the U.S., a tropical system is brewing in the Gulf, possibly bringing relief.

The weather service expects rain to spread northward from the Gulf with a southerly wind, and “numerous to widespread” showers and storms will be possible today and Friday in south Alabama. The Mobile area could get 2 to even 3 inches of rain from the system through Saturday, according to weather service forecasts:

Houston faces a heatwave with potential flooding as the NWS urges residents to stay cool and prepare for heavy rain later in the week.

While environmental conditions were marginally conducive for some development, forecasters said development would be slow and the wave is expected to hit conditions that will be unfavorable in the coming days. As of Monday morning, the system had a 20% chance of becoming a tropical depression or storm in the next seven days.

For the remainder of today, we will be on the storm watch. There is a chance for severe storms until roughly 9pm, especially south of Chicago. If we have a severe storm, all threats are possible including torrential rain, tornadoes, and damaging wind.