by SAN DIEGO, CA — The National Weather Service (NWS) in San Diego has issued a Heat Advisory for large portions of Southern California as inland temperatures are expected to soar into the low to mid-90s on Tuesday, October 28. The advisory will remain in effect from 11 a.m. to 7 p.m., covering several counties and valleys across the region.
Areas Under Advisory
The advisory includes Orange County inland areas, San Bernardino and Riverside County Valleys (Inland Empire), and the San Diego County Valleys. Meteorologists forecast daytime highs ranging between 88°F and 95°F, creating moderate heat risk levels for residents, particularly those exposed to prolonged sunlight or without cooling options.
Cities within the heat zone include Riverside, San Bernardino, Fontana, Irvine, Mission Viejo, and Escondido. While coastal regions may experience milder conditions, inland areas are expected to face intense heat through the afternoon hours.
Weather Outlook and Forecast
According to the National Weather Service, the warm and dry pattern affecting Southern California is expected to persist through midweek. A gradual cooling trend may return later in the week, but until then, forecasters warn of above-average temperatures and dry air contributing to potential fire weather conditions.
Meteorologist Alex Tardy of the NWS San Diego office said the current setup is typical for late October but still poses health and environmental risks.
“Even though we’re in the fall season, strong offshore winds and high pressure are combining to create unseasonably warm conditions across the inland valleys,” Tardy explained.
Health and Safety Precautions
Authorities are urging residents to take extra precautions during the advisory period. The NWS emphasizes that heat-related illnesses such as heat exhaustion or heat stroke can occur quickly, especially among outdoor workers, children, and the elderly.
Residents are advised to:
- Stay hydrated by drinking plenty of water throughout the day.
- Avoid strenuous activities during peak heat hours between 11 a.m. and 4 p.m.
- Seek shade or air-conditioned environments whenever possible.
- Check on elderly neighbors, pets, and anyone without access to air conditioning.
- Never leave children or pets unattended in vehicles, even for a few minutes, as interior temperatures can rise dangerously fast.
Public health officials also recommend that residents wear lightweight clothing, use sunscreen, and plan outdoor tasks for early morning or evening hours when conditions are cooler.
Fire and Air Quality Concerns
In addition to heat, the dry air mass and light offshore winds raise concerns for fire danger in some inland and foothill communities. Although no formal Red Flag Warning has been issued, fire departments across the region are on alert for any signs of wildfire activity.
The combination of low humidity and gusty winds could also impact local air quality, prompting sensitive groups—such as those with asthma or heart conditions—to limit outdoor exposure.
Read Also: Warm November Predicted for Georgia & North Carolina, But Early Winter Possible
When Relief Is Expected
Forecasters say temperatures should begin to ease slightly by Wednesday or Thursday, with highs returning to the mid-80s across inland valleys. Coastal regions are expected to stay relatively mild, with daytime highs in the upper 70s.
Still, meteorologists caution that Southern California could see another round of warm, dry conditions heading into early November depending on wind shifts and high-pressure movement.
Community Reminder
As the region braces for the upcoming heatwave, emergency management officials urge residents to stay informed through NWS alerts and local weather updates. Preparedness and community awareness remain key to reducing heat-related emergencies.
Have you experienced unusually high fall temperatures in your area? Share your experience and how you’re staying cool during this Southern California heatwave at race-day-live.com.
