San Diego County Braces for Unprecedented March Heat Wave
San Diego County is facing an unusually early and intense heat wave, with temperatures expected to soar well above normal for late March. The National Weather Service (NWS) has issued a Heat Advisory for the city of San Diego and valley areas, effective from 10 a.m. Monday through 8 p.m. Friday. An Extreme Heat Watch is also in effect for the mountains and low deserts from 10 a.m. Thursday to 8 p.m. Friday.
Record-Breaking Temperatures Expected
The NWS warns that temperatures could reach 80 to 90 degrees near the coast and a scorching 100 to 105 degrees inland. By Thursday, some locations may break monthly temperature records, with Friday forecast to be the hottest day of the week – potentially 30 degrees above normal away from the coast and 20 degrees above normal at the beaches. El Cajon, Alpine and Ramona already broke daily records on Monday.
A Heat Advisory remains in effect for the coastal areas and valleys from 10 AM Monday to 8 PM Friday. An Extreme Heat Watch is now in effect for the mountains and low deserts from 10 AM Thursday to 8 PM Friday, the NWS said.
What Makes This Heat Wave Unusual?
The NWS emphasizes that this heat wave is “unprecedented” for this time of year due to both the exceptionally warm temperatures and their prolonged duration across widespread locations. A weak offshore flow will bring winds of up to 20 mph Sunday through Tuesday, with peak gusts of 25-35 mph in passes and canyons this week.
Staying Safe During Extreme Heat
County officials recommend several precautions to protect yourself and your family:
- Drink plenty of fluids.
- Stay out of the sun.
- Wear light, loose-fitting clothing.
- Avoid using the oven to cook.
- Limit strenuous activities to early morning or evening.
- Take refuge in air-conditioned spaces if possible.
- Check in on potentially at-risk friends, relatives, and neighbors.
Recognizing and Responding to Heat Illness
If you suspect someone is suffering from heatstroke or heat exhaustion – symptoms include dizziness, nausea, confusion, and headache – call 9-1-1 immediately. Do not give them fluids to drink, as they may not be able to swallow safely. Start cooling the person by moving them to shade, spraying them with cool water, and fanning them. If they are alert, a cool shower can also aid. Continue monitoring their body temperature and cooling them until help arrives.
FAQ: Extreme Heat Safety
- What is the difference between a Heat Advisory and an Extreme Heat Watch? A Heat Advisory means heat is expected, while an Extreme Heat Watch means conditions are favorable for extreme heat but are not yet certain.
- What should I do if I don’t have air conditioning? Locate the nearest cooling shelter or stay with friends or family who have air conditioning.
- How can I help others during a heat wave? Check on elderly neighbors, people with health conditions, and those who live alone.
Stay informed about the latest weather updates from the National Weather Service ([https://www.weather.gov/](https://www.weather.gov/)) and Heat.gov ([https://heat.gov/](https://heat.gov/)).
