Rooster Rock State Park

Extreme Heat Watch issued June 11 at 11:42AM PDT until June 16 at 11:00PM PDT by NWS Portland OR

* WHAT...Dangerously hot conditions with temperatures between 95 and 100 degrees F possible. * WHERE...Greater Portland Metro, Central Willamette Valley, Western Columbia River Gorge, Lower Columbia River, Inner Vancouver Metro, and East Clark County Lowlands. * WHEN...From Sunday morning through Tuesday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Peak heating days will be Sunday and Monday with the potential for a slight cool down on Tuesday. Overnight temperatures will remain elevated Sunday night into Monday morning, and Monday night into Tuesday morning. Night time temperatures ranging from 60-65 degrees will lead to poor overnight recovery with less relief. There is currently around a 10% chance of Extreme HeatRisk for Portland proper and the West Hills on Monday, with a 25% chance of a high temperature of 100 degrees F. Conditions remain elevated on Tuesday, though confidence is lower in regards to whether significant heat will persist.