Weather Alerts-

Execute a pre-planned activity identified in the instructions

Phoenix - AZ, US, National Weather Service

Portions of southwest Arizona and southeast and southern California

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST /8 PM PDT/ SUNDAY... WHAT...Dangerously hot conditions. Afternoon temperatures 96 to 109. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. WHERE...Portions of southwest Arizona and southeast and southern California. WHEN...Until 8 PM MST /8 PM PDT/ Sunday. IMPACTS...Heat related illnesses increase significantly during extreme heat events. ADDITIONAL DETAILS...Afternoon temperatures 96 to 109 expected. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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.