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FGAK78 PAFC 272238
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AKZ701>704-711>714-721>729-731-732-735-745>748-282315-

Hydrologic Outlook
National Weather Service Anchorage AK
238 PM AKDT Wed Aug 27 2025

...SIGNIFICANT RAINFALL THROUGH FRIDAY WILL BRING RIVER
RISES AND LOCALIZED FLOOD POTENTIAL ACROSS SOUTHCENTRAL ALASKA...

Rainfall

* Eastern Kenai Peninsula and Prince William Sound: 2 to 5 inches
  with locally higher amounts in higher terrain.

* Mat-Su Valley: 1.5 to 4 inches with locally higher amounts. The
  highest rainfall totals are likely to be across the northern
  Susitna Valley.

* Western Kenai Peninsula and Anchorage: 1 to 2 inches of rainfall
  with the heaviest rainfall occuring adjacent to Cook Inlet.
  Downsloping at times may result in localized lower amounts
  immediately west of the mountains.

Hydrologic Concerns

* Expect sharp rises on many small streams and rivers. Many smaller
  streams will crest Thursday night into Friday while larger rivers
  or downstream points may crest Friday and Saturday. Higher than
  normal water levels may continue through Labor Day Weekend into
  next week.

* Many lower locations along rivers such as gravel bars and other
  spots popular for camping and recreating are likely to become
  inundated with water.

* Heavy rain may result in localized ponding in low-lying areas and
  locations with poor drainage.

Confidence and Next Steps

* Confidence is high that a multi-day heavy rainfall event will
  occur across Southcentral Alaska, with the northern Susitna Valley
  and Prince William Sound receiving the heaviest rainfall.
  Confidence is medium regarding rainfall totals and placement of
  heaviest rainfall. If forecast rainfall totals hold or increase,
  flood watches may be needed for portions of the Kenai Peninsula,
  Mat-Su Valley, or elsewhere.

* Residents along area streams as well as river users and
  recreationists should anticipate higher than normal water levels
  and are advised to monitor weather and river forecasts.

* Reports on river conditions may be sent to the river forecast
  center by calling 1-800-847-1739.


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Brown