National Weather Service Issues Flood Watch for Susitna Valley
As of August 17, 2026, a Flood Watch is in effect across three Susitna Valley zones through the afternoon of Wednesday, August 19, because of potential excessive rainfall.
3 reports on this incident · first at Aug 16, 2026, 4:42 p.m. ET
Hazard products are revised and cancelled as conditions change. Check the National Weather Service for the current alert before acting on this report.
Earlier reports
Aug 16, 2026, 4:44 p.m. ET
NWS Warns Excessive Runoff May Cause Flooding in Susitna Valley
Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations, according to the National Weather Service Anchorage AK. The warning follows a Flood Watch issued for three zones, covering the Western Susitna Valley, Southern Susitna Valley, and Central Susitna Valley. Affected locations include the cities of Skwentna, Willow, Talkeetna, Trapper Creek, and Petersville.
The National Weather Service stated on August 17, 2026, that flooding caused by excessive rainfall is possible across the impacted region. The watch is active from 7 PM AKDT this evening through Wednesday afternoon, starting August 16, 2026, at 7:00 PM AKDT and expiring August 19, 2026, at 6:00 PM AKDT.
The National Weather Service Anchorage AK advises residents living in areas prone to flooding to monitor later forecasts for possible Flood Warnings, stay tuned to local radio, television, or NOAA Weather Radio, and be prepared to take action should flooding develop.
Aug 16, 2026, 4:42 p.m. ETFirst report
National Weather Service Issues Flood Watch for Three Susitna Valley Zones
The National Weather Service Anchorage AK has issued a Flood Watch covering three zones in Alaska. The watch is current for Monday, August 17, 2026, according to the National Weather Service product record published by the office.
That record states the watch applies to the Central Susitna Valley, Southern Susitna Valley and Western Susitna Valley, including the cities of Skwentna, Willow, Talkeetna, Trapper Creek, and Petersville.
Flooding caused by excessive rainfall is possible, the record states. The watch began at 7:00 PM AKDT on August 16, 2026, and is set to expire at 6:00 PM AKDT on August 19, 2026 — from 7 PM AKDT that evening through Wednesday afternoon. Excessive runoff during the period may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations.
The National Weather Service record advises residents to monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop, and should stay tuned to further developments by listening to local radio, television, or NOAA Weather Radio for further information.
The alert level is a watch, one step below a warning, meaning conditions are favorable for flooding but flooding is not yet occurring or imminent.
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Revision history
- Version 116 Aug 2026, 20:44current
First published.
- Version 116 Aug 2026, 20:42current
First published.
- Version 116 Aug 2026, 20:52current
First published.
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