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Tropical Cyclones

NHC Flags Invest 99L Could Become Tropical Depression Near Azores

Rapid organization gives it about a 70% chance to become a tropical depression, forecast to remain southwest of the Azores and away from U.S. coasts.

Gulf Disturbance Likely to Become Short‑Lived Storm Before Texas‑Louisiana Landfall

NHC Says Invest 96 Likely to Become a Tropical Depression

Record Heat to Broaden Across Southern California Starting Tuesday

Tropical Depression Two‑C Poised to Become Storm That Could Flood Hawaii’s Big Island

Severe Storms, Flood Risk Threaten Lower Great Lakes Through Mid‑Atlantic

NHC Flags Low Chance of Tropical Development Off Southeast Coast

Tropical Storm Gabrielle Forms in Central Atlantic With Weekend Strengthening Forecast

NHC Trims Odds As Atlantic Disturbance Tracks Toward Lesser Antilles

Tropical Storm Erin Forms in Eastern Atlantic and Poised to Become Season’s First Hurricane

NOAA Predicts Above-Average Atlantic Hurricane Season as NHC Monitors First Area of Interest