Summer Begins: High Heat Warnings Issued For Inland Southern California Through The Weekend



A strong ridge of high pressure will build into the area starting tomorrow.The ridge will peak on Friday and Saturday, owning to the hottest temperatures and coming at the time of the start of Meteorological Summer, which starts June 1st each year.

Astronomical Summer starts around June 21st each year … a big difference … one is from an orbital point of view around the Sun, the other is when our weather patterns generally start for that season.

Widespread triple-digits are expected in all desert, basin, and valley locations of the forecast area.  The only relief will be at the coast.Projections from 100-105 for the valley areas with 105+ in the Upper Deserts and up to 115+ for the low deserts and Colorado River Valley areas, including the Coachella Valley and Imperial Deserts where we will see 118F being a possibility on Friday or Saturday.

The ridge will breakdown and 80s will return by Tuesday of this next week, making the heatwave only really last for a few days at most.This is NOT a monsoonal heat blast so do not expect humidity to accompany this, nor any chance of thunderstorms anywhere

The best defense is prevention. Here are some prevention tips:

  • Drink more fluids (nonalcoholic), regardless of your activity level. Don’t wait until you’re thirsty to drink. Warning: If your doctor generally limits the amount of fluid you drink or has you on water pills, ask your doctor how much you should drink while the weather is hot.
  • Don’t drink liquids that contain alcohol or large amounts of sugar–these actually cause you to lose more body fluid. Also, avoid very cold drinks, because they can cause stomach cramps.
  • Stay indoors and, if at all possible, stay in an air-conditioned place. If your home does not have air conditioning, go to the shopping mall or public library–even a few hours spent in air conditioning can help your body stay cooler when you go back into the heat. Call your local health department to see if there are any heat-relief shelters in your area.
  • Electric fans may provide comfort, but when the temperature is in the high 90s, fans will not prevent heat-related illness. Taking a cool shower or bath, or moving to an air-conditioned place is a much better way to cool off.
  • Wear lightweight, light-colored, loose-fitting clothing.
  • NEVER leave anyone in a closed, parked vehicle.
  • Although any one at any time can suffer from heat-related illness, some people are at greater risk than others. Check regularly on:
    • Infants and young children
    • People aged 65 or older
    • People who have a mental illness
    • Those who are physically ill, especially with heart disease or high blood pressure
  • Visit adults at risk at least twice a day and closely watch them for signs of heat exhaustion or heat stroke. Infants and young children, of course, need much more frequent watching.

If you must be out in the heat:

  • Limit your outdoor activity to morning and evening hours.
  • Cut down on exercise. If you must exercise, drink two to four glasses of cool, nonalcoholic fluids each hour.  A sports beverage can replace the salt and minerals you lose in sweat. Warning: If you are on a low-salt diet, talk with your doctor before drinking a sports beverage. Remember the warning in the first “tip” (above), too.
  • Try to rest often in shady areas.
  • Protect yourself from the sun by wearing a wide-brimmed hat (also keeps you cooler) and sunglasses and by putting on sunscreen of SPF 15 or higher (the most effective products say “broad spectrum” or “UVA/UVB protection” on their labels).

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