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Extreme Heat Warning — West Side Mountains north of 198 Severity: Severe. Certainty: Likely. * WHAT...The Heat Advisory has been replaced with an Extreme Heat Warning. High temperatures up to 108 degrees and multiple days of Major Heat Risk. * WHERE...West Side Mountains north of 198. * WHEN...Until 8 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...The Heat Advisory has been replaced with an Extreme Heat Warning. Afternoon high temperatures of 105 to 109 degrees will occur daily through Monday. Overnight lows will generally only fall into the mid 60s to mid 70s with little overnight relief.
The historical document was shared with another weather alert and cannot be attributed to this record. The original extract is preserved above; the exact alert link was not retained.