Flood Warning Issued for Newaukum River Near Chehalis Affecting Lewis County

Source: NOAA · Lewis County, Washington

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The National Weather Service has issued a Flood Warning for Lewis County as the Newaukum River is expected to crest above flood stage, impacting local roads and residential areas.

What this NWS weather alert tells you, and what most readers miss

This notice was issued by NOAA on March 27, 2026 and geographically references Lewis County, Washington. Its severity classification of "high" signals how the issuing agency weighs the risk of harm if no action is taken — "critical" and "high" tier alerts typically carry direct consumer actions, while "medium" and "low" tend toward informational guidance or monitoring advisories. The category it belongs to — Weather Alerts — determines the regulatory framework behind it, which shapes what remedies (refunds, replacements, recalls, evacuations) are available to affected individuals and who holds statutory responsibility for enforcement.

Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to read it as a data point about the issuing system: how quickly NOAA detected the hazard, how precise the geographic or product-identifier scope is, and whether similar notices have clustered in the same category or region in the last 90 days. Cluster patterns frequently precede a broader regulatory action — a single localized NWS weather alert is isolated; three of them within a quarter often indicate a supply-chain, infrastructure, or seasonal driver that will keep producing notices until something structural changes.

For decision-making, Areazine pairs each alert with the original agency URL, the full agency name, and a timestamp so you can verify the notice against the primary source before acting on it. Tags on this item (weather, alert, Flood Warning, Lewis County) map to related alerts in the same area of risk — browsing them together gives a clearer picture than any single notice alone, because the shape of an ongoing issue only becomes visible across multiple sequential alerts.

Alert Details

The National Weather Service in Seattle WA has issued a Flood Warning for the Newaukum River near Chehalis and the Skookumchuck River near Bucoda. The alert was issued on March 13 at 8:34 AM PDT and remains in effect until March 14 at 11:48 AM PDT.

Affected Areas

The warning primarily affects Lewis County, specifically the areas surrounding the Newaukum River and its forks. Impacted roadways and residential/commercial areas include:

  • Jackson Hwy
  • Tune, Rush, Sommerville, Griel, Hamilton, Tauscher, Guerrier, Kirkland, Macomber, Rice, Senn, and Lucas Creek Roads
  • Middle Fork and North Fork Roads

The alert also identifies the Skookumchuck River near Bucoda as an affected area.

What You Should Do

Residents are advised to take the following precautions:

  • Turn around, don't drown: Most flood deaths occur in vehicles. Do not attempt to drive through flooded areas.
  • Respect Barricades: Motorists should not attempt to drive around barricades.
  • Monitor Conditions: Stay tuned for further updates. The next statement is expected to be issued by 4:45 PM PDT this afternoon.

Expected Conditions

Minor flooding is forecast for the region. At a stage of 202.5 feet, flood waters are expected to inundate numerous roads and residential and commercial areas along the Newaukum River. This stage corresponds to Phase 2 flooding in the Lewis County flood system. Flooding in some areas may be deep and hazardous, particularly near riverbanks.

Timeline

  • Current Status: As of 7:45 AM PDT Friday, the river stage was 200.8 feet.
  • Flood Stage: 202.5 feet.
  • Onset: The river is expected to rise above flood stage late this morning.
  • Crest: A crest of 203.8 feet is forecast for late this afternoon.
  • Recession: The river is expected to fall below flood stage just after midnight tonight.
  • Expiration: The warning is scheduled to end at 11:48 AM PDT on Saturday, March 14.

Original source: NOAA Official Notice ↗

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Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
The National Weather Service has issued a Flood Warning for Lewis County as the Newaukum River is expected to crest above flood stage, impacting local roads and residential areas.
Which agency issued this alert?
This alert was issued by NOAA. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "high" severity. Take precautions and monitor for updates.
What area is affected?
This alert affects Lewis County, Washington. Check with NOAA for the most current geographic scope.
Where can I find more Weather Alerts updates?
Browse the full Weather Alerts feed on Areazine at areazine.com/weather/ for the latest updates from NOAA and other agencies.