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Mario first gained tropical storm strength Friday before it weakened into a tropical depression just hours later.
Tropical Storm Mario could send tropical moisture into Southern California and the Southwest this week, raising the risk for showers, storms and flash flooding.
Tropical Storm Mario has reformed in the Pacific Ocean near Mexico, according to the National Hurricane Center. See where it's headed.
Tropical Storm Fernand is expected to form this weekend and follow on Hurricane Erin's heels past the East Coast.
21hon MSN
Mario restrengthens to a tropical storm off Mexico's Pacific coast but not threatening land
MIAMI -- Mario, a storm system swirling off Mexico's Pacific coast, has again become a tropical storm. There are no coastal watches or warnings in effect even though the storm was strengthening Sunday, the National Hurricane Center in Miami said.
Forecasters are watching a tropical wave off the coast of Africa and Tropical Storm Kiko, which is expected to become a hurricane soon.
The Times Shreveport on MSN
It's quiet now. But Gulf Coast may still see above average tropical storm, hurricane activity
Warmer water temperatures and other weather factors are expected to increase the potential for hurricanes in the Gulf. AccuWeather's outlook here.