Marine and Coastal Impacts from Imelda; Unsettled Weather in the West

Swells and high surf from both Imelda and Humberto are expected to bring dangerous marine conditions and rip currents to much of the East Coast over the next several days. A series of Pacific frontal systems will bring waves of showers and thunderstorms to portions of northern California and the Pacific Northwest through midweek. Read More >

The National Weather Service has made changes to our Flash Flood Warnings that includes impact based information and tags at the bottom of the warnings based on expected severity. These features are similar to our current Severe Thunderstorm and Tornado Warnings.

The Flash Flood Warnings (FFW) will now have tags and information at the bottom that includes:

No Tag ("base" FFW) - Used when flash flooding impact damage is possible.
Considerable - Unusual severity - urgent action is needed.
Catastrophic - Threat to life and catastrophic damage; levels rarely seen.

IMPORTANT: Wireless Emergency Alerts (WEAs) via cell phones will ONLY forward warnings with the "considerable" or "catastrophic" tags.

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Marine and Coastal Impacts from Imelda; Unsettled Weather in the West

Impact Based Flash Flood Warnings & WEA Changes