Zone Number 659 Located in the southeast corner of Mt. Rainier National Park near the Ohanapecosh Hot Springs. This site sits in a narrow valley with steep sidewalls east and west. It exhibits extremely warm daytime temperatures and low afternoon relative humidities due to its location.
Wind speeds are low - mostly upslpe, upvalley.
Mixing is weak which contributes to the warm, dry location. Usually one of the last locations in the district to feel the effects of marine air when onshore flow returns to the interior lowlands. Shallow layers of marine air rarely work this far up the Cowlitz River drainage. West Aerial view looking north up the Ohanapecosh drainage.