Weather Alerts For Calexico, CA

# HEADLINE -------------------- EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST /8 PM PDT/ THIS EVENING # DETAILS -------------------- WHAT Dangerously hot conditions. Afternoon temperatures 106 to 112 expected. Major Heat Risk. WHERE In Arizona, Parker Valley and Yuma. In California, Chuckwalla Valley, Imperial Valley, and Palo Verde Valley. WHEN Until 8 PM MST /8 PM PDT/ this evening. IMPACTS Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. ISSUED AT Monday, May 11, 2026 at 12:35 PM MST ISSUED BY National Weather Service Phoenix AZ HEADER URGENT - WEATHER MESSAGE # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- An Extreme Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to lessen the impact of the extreme heat. 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 and drink plenty of water. 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. Public cooling shelters are available in some areas. Consult county officials for more details. # AREAS AFFECTED -------------------- Chuckwalla Valley, Imperial Valley, Palo Verde Valley, Parker Valley, Yuma Including the cities of Blythe, Midland, Ripley, Ehrenberg, Brawley, Yuma, Alamorio, Calexico, El Centro, Palo Verde, Fortuna Foothills, Martinez Lake, and Parker

# HEADLINE -------------------- AIR QUALITY ALERT FOR HARMFUL LEVELS OF OZONE (SMOG) AIR POLLUTION # DETAILS -------------------- WHAT The Imperial County APCD has extended an air quality alert due to harmful levels of ozone pollution. Visit https://www.aqmd.gov/alertinfo to check current and forecasted air quality levels. WHERE the Imperial Valley. Levels of ozone pollution can vary by time and location depending on emissions and air pollution transport. WHEN from 11:00 a.m. Sunday, May 10, 2026 through 9:00 p.m. Monday, May 11, 2026. The highest ozone levels typically occur in the afternoon and early-evening hours. IMPACTS Ozone air pollution can cause serious health problems, including trouble breathing, asthma attacks, and lung damage. Everyone can be affected, but sensitive groups such as people with lung disease, older adults, people who are pregnant, children, and those who spend a lot of time outdoors are at greater risk. ISSUED AT Sunday, May 10, 2026 at 8:45 AM MST ISSUED BY Relayed by National Weather Service Phoenix AZ HEADER Air Quality Alert Message # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- To protect your health, check air quality levels and act as needed: - When Air Quality Index (AQI) levels are "Unhealthy for Sensitive Groups" (orange), sensitive groups as specified above should limit extended or intense outdoor activity. - When AQI is "Unhealthy" (red), everyone may experience health impacts. Sensitive groups should avoid extended time outdoors. - When AQI is "Very Unhealthy" (purple), sensitive groups should avoid all outdoor physical activity. Everyone else should avoid extended or intense outdoor activity. - When AQI is "Hazardous" (maroon), everyone should avoid all outdoor physical activity. - ADDITIONAL DETAILS... To help keep indoor air clean when air quality is poor: - Keep windows and doors closed - Run your air conditioner and/or an air purifier - Do not use whole house fans or swamp coolers that bring in outside air if you have other methods to stay cool - Avoid other sources of pollution such as fireplaces, candles, incense, and grilling To help minimize outdoor ozone air pollution levels: - Limit the use of gasoline powered lawn and garden equipment until evening hours - Try to delay trips to the gas station and the use of household chemicals until the evening # AREAS AFFECTED -------------------- Imperial Valley Including the cities of El Centro, Calexico, Alamorio, and Brawley