RISK ALERT
Date: August 17, 2020
Heat Advisory
The National Weather Service has issued an Excessive Heat Warning which remains in
effect until 10PM on Thursday for the cities of: Riverside, San Bernardino, Ontario, Moreno
Valley, Fontana, Rancho Cucamonga, Corona, Escondido, El Cajon, San Marcos, La
Mesa, Santee, Poway, Crestline, Julian, Pine Valley, Victorville, Hesperia, Apple Valley,
Indio, Palm Springs, Cathedral City, Palm Desert, Palm Desert Country, La Quinta,
Coachella, Borrego Springs, Banning, Desert Hot Springs, Santa Ana, Anaheim, Garden
Grove, Orange, Fullerton, and Mission Viejo.
Advisory:
Dangerously hot conditions with high temperatures form 98º to 118 ºF, hottest in the
deserts and Inland Empire.
Where:
Deserts, valleys, inland Orange County, and mountains below 5000 feet.
Impact:
Extreme heat will significantly increase the potential for heat related illnesses, particularly
for those working or participating in outdoor activities.
ADDITIONAL DETAILS High temperatures expected.
Inland Empire.......................102 to 110 ºF
Inland Orange County............95 to 102 ºF
High Deserts.........................102 to 110 ºF
San Diego County Valleys......95 to 106 ºF
Mountains below 5000 feet.....92 to 102 ºF
Lower Deserts.......................112 to 118 ºF
California’s heat illness prevention standard:
CA’s heat illness prevention standard applies to all outdoor workers, including those in
construction and landscaping. Other workers protected by the standard include security
guards, groundskeepers, and transportation and delivery drivers who operate non-airconditioned vehicles. It is important for employers to assess the risk of heat illness
based on a worker’s duties and take appropriate steps to prevent them from getting
sick.
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Regardless of the level of risk, all outdoor workers must be protected equally and
employers with outdoor workers must maintain an effective heat illness prevention plan
year-round. Employers with outdoor workers must take the following steps to prevent
heat illness:
• Plan – Develop and implement an effective written heat illness prevention plan
that includes emergency response procedures.
• Training – Train all employees and supervisors on heat illness prevention.
• Water – Provide drinking water that is fresh, pure, suitably cool and free of
charge so that each worker can drink at least 1 quart per hour and encourage
workers to do so.
Precautionary/preparedness actions
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on
relatives and neighbors. Young children and pets should never be left unattended in
vehicles under any circumstances.
Take extra precautions if you work or spend time outside. When possible reschedule
strenuous activities to early morning or evening. Know the signs and symptoms of heat
exhaustion and heat stroke. Wear lightweight and loose-fitting clothing when possible. To
reduce risk during outdoor work, the Occupational Safety and Health Administration
recommends scheduling frequent rest breaks in shaded or air-conditioned environments.
Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is
an emergency! Call 9-1-1.
At California Schools JPA risk management, we are here to help our members with their Heat
Illness Prevention Plan and provide complimentary resources to assist your district in preventing
health illness. Please contact us directly at 909-763-4900 for further assistance.
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