Hurricane Erin is expected both strengthen and become larger Aug. 18, 2025.

Erin is expected to produce life-threatening surf and rip currents to the Atlantic coast from Florida to Canada.

See latest spaghetti models for Hurricane Erin.

Erin became the Atlantic season's first hurricane as expected late Aug. 15, then exploded into a Category 5 storm Aug. 16.

Monday morning, Aug. 18, it was a Category 4 storm after a short-lived dip to Category 3 status. It's expected to grow both larger and stronger, according to the National Hurricane Center.

Maximum sustained winds are expected to hit 145 mph later today, up from 130 at 5 a.m. Erin remains a major hurricane. A major hurricane is one that's a Category 3 or higher, with maximum sustained winds of at least 111 mph.

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