NOAA Warns that Excessive Heat Warning Could Lead to Hypothermia The excessive heat warning in parts of California, Nevada, and Arizona has lead to officials issuing a warning about hypothermia. Yep, you read that right! The mercury is creeping beyond 100ยบF causing the rapid melt of the mountain snowpack. All that ice-cold water then flows into Central California rivers and streams. …Hot Weather through Thursday… .The first major heat wave […] Weather WeatherBrains | May 27, 2020 0 Comments