High Heat Continues in San Diego County Deserts Amid Sunday Flood Advisory

Forecasters warned of thunderstorms and potential flooding in parts of San Diego County Sunday afternoon.

A flood advisory was in effect until 4:40 p.m. Sunday, according to the National Weather Service, which said minor flooding was possible in low- lying and poor drainage areas.

“Between 1 and 1.5 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are expected over the area,” the NWS advised Sunday afternoon. “This additional rain will result in minor flooding. Some locations that will experience flooding include Borrego Palm Canyon and Los Coyotes Indian Reservation.”

A severe thunderstorm warning for north-central San Diego County expired at 3 p.m.

Meanwhile, a beach hazard warning will be in effect from Tuesday morning until at least Thursday evening, with increased risk of rip currents and dangerous swimming conditions. County beaches could expect high surf of up to 6 feet. Officials advised people to remain out of the water.

Intense heat will continue for inland San Diego County through the week. An excessive heat warning will also remain in effect for county deserts until at least 9 p.m. Sunday.

Highs in the deserts Sunday will range from 107 to 111 degrees with light winds, and from 88 to 98 in the mountains with wind gusts up to 25 mph. There is a 20% chance of measurable precipitation in both areas, forecasters said.

Temperatures will range from 81 to 85 in the western valleys and 89 to 94 near the foothills.

It will be partly cloudy with patchy fog during the morning in coastal areas this week, with highs from 73 to 77 near the coast.

In high-heat areas, officials advised people to “drink plenty of fluids, stay in an air-conditioned room, stay out of the sun and check up on relatives and neighbors.”

Heat warnings also apply to furry companions as well. San Diego County officials also advised residents to keep their pets indoors, so long as the temperature is lower inside. People should also:

• Exercise animals in early morning or evening to avoid prolonged exposure to the heat, and also skip strenuous runs or hikes;
• Keep pets’ water supply in a tip-proof container, and make sure the dish always topped off and stays cool (as pets won’t drink water that is too hot);
• If possible, install a misting system to keep outdoor areas cooler;
• Be sure animals, if they are outside, are constantly in a shaded area;
• Avoid taking pets on car trips without air-conditioning unless necessary, as a vehicle can quickly heat up (on an 85-degree day, a car can reach 102 degrees in 10 minutes, even with the windows down);
• Avoid walking dogs on hot pavement; and
• Allow dogs to use a child’s wading pool.

Sunday’s downtown conditions are expected to be mostly sunny throughout the day, with a high near 77 and a low around 66.

“Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke,” forecasters said.

— City News Service