TNW News Hurricane Update

Wednesday, June 11, 2025 – 4:00 PM CGT

Post-Barbara and Cosme: Pacific Stays Active as New Systems Develop

MIAMI, FL — Although Post-Tropical Storm Barbara has dissipated and Tropical Storm Cosme is on the verge of doing the same, forecasters are warning that the eastern Pacific remains primed for tropical development.

According to TNW News Operations General Manager and Hurricane Division Chief Todd Nardone, two additional disturbances south of Mexico show signs of organization and could become tropical cyclones in the coming days.

"While Barbara and Cosme are no longer a concern, the tropics are far from quiet," Nardone said in his afternoon operations briefing.

“We’re monitoring two areas with moderate-to-high potential for development. Both are located in the tropical Pacific south of the Mexican coast, and environmental conditions support gradual strengthening through the weekend.”

Key Details:

• Barbara: Now dissipated; remnants drifting harmlessly west
• Cosme: Weakening fast and expected to dissipate within 24–36 hours
• New Disturbances: Two areas with development chances:
• System 1: 60% chance of development in 7 days
• System 2: 40% chance in 7 days
• Location: Both systems are well offshore, south of Mexico
• Impact Outlook: No immediate threat to land, but interests from Mexico to Central America should monitor

Satellite data and forecast models show broad areas of low pressure with increasing thunderstorm activity and mid-level spin. These systems could become named storms if they continue to organize.

The National Hurricane Center (NHC) and TNW Weather Hurricane Division will continue to issue updates as conditions evolve.

Copyright 2025 — TNW News LLC. All rights reserved. TNW First ALERT™, TNW Hurricane Operations Center, and TNWCon graphics are protected by trademark.

Track the tropics 24/7 at TNWWeather.com and follow updates on X, Threads, and Instagram @TNWWeather.

GRAPHIC REQUEST:

Coming up next:

TNW News-branded graphic showing the dissipation of Barbara and Cosme

Highlight two developing systems south of Mexico

Use standard TNW style in normal print, include:

• “TNW News LLC” title
• “Presented by TNW Hurricane Operations Division”

TNW copyright 2025

Modern satellite view, ocean labeling, and clear storm identifiers