Invest 90L could become Tropical Storm Arthur later today or June 17. See spaghetti models of Invest 90L. The first named storm of the 2026 Atlantic hurricane season could form later today or June 17 in the Gulf.

The newly designated Tropical Storm Arthur begins to brew as it moves into the warm waters of the Gulf of America and lashes the Texas coast.

Artificial intelligence is changing hurricane forecasting after a Google model outperformed traditional options. The system analyzes decades of historical patterns to project tracking paths faster and cheaper than standard numerical weather prediction.