Weather Warning

This warning affects:Lowlands of Lewis and Southern Thurston Counties, Middle Chehalis River Valley, Olympia and Southern Puget Sound and Willapa and Black Hills.

Heat Advisory for Olympia and Southern Puget Sound, Lowlands of Lewis and Southern Thurston Counties, Middle Chehalis River Valley, Willapa and Black Hills

  • Issued by the National Oceanographic and Atmospheric Administration

AREAS AFFECTED : OLYMPIA AND SOUTHERN PUGET SOUND; LOWLANDS OF LEWIS AND SOUTHERN THURSTON COUNTIES; MIDDLE CHEHALIS RIVER VALLEY; WILLAPA AND BLACK HILLS

* WHAT...Hot conditions with high temperatures up to 93 to 98 
degrees and low temperatures down to 60 degrees expected. This 
will pose a moderate risk of heat-related illness. 
 
* WHERE...Middle Chehalis River Valley, Lowlands of Lewis and 
Southern Thurston Counties, Olympia and Southern Puget Sound, and 
Willapa and Black Hills. 
 
* WHEN...From 11 AM Sunday to 5 AM PDT Tuesday. 
 
* IMPACTS...Heat will significantly increase the risk of 
heat-related illnesses for those who are sensitive to heat, 
especially those without effective cooling or adequate hydration. 
 
* ADDITIONAL DETAILS...The warmest daytime high temperatures are 
expected Monday afternoon and the warmest overnight lows are 
expected Monday night into Tuesday morning. Areas away from water 
may see localized areas of major HeatRisk.