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Extreme Heat

A photograph of the sun over top of mountains in an extreme heat condition
During prolonged extreme heat, the Ä¢¹½ÊÓÆµâ€™s Emergency Management office coordinates the University’s response and convenes Ä¢¹½ÊÓÆµâ€™s Weather Status Assessment Group.

Extreme heat is a period of high heat and humidity with temperatures above 90 degrees for at least two to three days. In extreme heat your body works extra hard to maintain a normal temperature.

Extreme heat is often responsible for the highest number of annual deaths among all weather-related hazards. State safety requirements for outdoor workers are required at temperatures below 90 degrees. .

Tracking Conditions

The Ä¢¹½ÊÓÆµâ€™s Emergency Management office receives heat watches, warnings and advisories from the National Weather Service. .

The NWS HeatRisk Prototype is a color-numeric-based index that provides a forecast risk of heat-related impacts to occur over a 24-hour period. HeatRisk takes into consideration:

  • How unusual the heat is for the time of the year
  • The duration of the heat including both daytime and nighttime temperatures
  • If those temperatures pose an elevated risk of heat-related impacts based on data from Centers for Disease Control and Prevention (CDC).

* Information from the Centers for Disease Control and Prevention, King County Emergency Management and National Weather Service.

Prepare

Prevent heat-related emergencies

  • A photograph of a water bottle on a table in the bright sunlightDrink lots of fluids (avoid caffeine, alcohol and high-sugar drinks). Carry a water bottle.
  • Wear lightweight, light-colored, loose-fitting clothing.
  • Stay indoors and, if possible, in an air conditioned place, such as a shopping mall, library or community center.
  • Do not rely on a fan as your primary cooling device. Fans create air flow and a false sense of comfort, but do not reduce body temperature or prevent heat-related illnesses.
  • Protect yourself from the sun with a wide brimmed hat, sunglasses and sunscreen.
    Cover windows that receive morning or afternoon sun.
  • Take cool showers or baths to cool down.
  • Never leave people or pets in a closed car on a warm day.

– Sources: King County Emergency Management and Washington State Department of Health.

Extreme heat alerts

If the Ä¢¹½ÊÓÆµ limits or suspends operations due to prolonged extreme heat, information will be shared via:

  • Ä¢¹½ÊÓÆµ Alert – students, faculty and staff can sign up to receive text messages.
  • Banner on Ä¢¹½ÊÓÆµâ€™s website
  • Recorded message on Ä¢¹½ÊÓÆµâ€™s information line, 206-Ä¢¹½ÊÓÆµS-INFO, Toll Free: 1-866-897-INFO
  • Your supervisor, department/college administrator or building coordinator.