Flood Advisory Issued: What Arborists Need to Know
On March 13, 2026 at 1:50 PM PDT, a flood advisory was issued by the National Weather Service (NWS) Spokane, effective until March 14 at 1:45 PM PDT. The advisory alerts local communities in Idaho and Southeast Washington to be prepared for minor flooding caused by rain and snowmelt.
The Affected Areas
The advisory affects several counties, including Latah, Lewis, Nez Perce from Idaho, and Asotin, Garfield, and Whitman from Washington. Localities such as Lewiston, Pullman, and Moscow are among the areas expected to see impacts. It’s crucial for arborists and tree care professionals in these regions to understand how flooding can affect tree health and growth, particularly in low-lying or poor drainage areas.
Potential Impacts on Trees
Flooding can pose a significant risk to trees, especially those rooted in saturated soil. Strong rains can lead to soil erosion and increase the risk of root rot, which compromises trees' health and stability. Arborists should be alert for signs of distress in trees following flooding events, such as wilting leaves or slower growth rates.
Proactive Measures for Arborists
During times of expected flooding, arborists should assess the trees in affected areas. They can assist in implementing protective measures such as proper drainage around tree bases and recommend species that tolerate wet conditions for future plantings. If you foresee severe conditions or damage, it may be wise to consult with other arborists to develop a strategy for addressing possible tree mortality.
How to Stay Informed
For further information and updates, reference the NWS resources. Arborists are encouraged to monitor weather advisories and prepare for post-flood assessments to support healthy ecosystems and urban landscapes.
In the face of expected heavy rainfall and flooding, remember the simple rule: “Turn around, don't drown.” Stay safe and keep our trees thriving!
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