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"A number of locations over the Southwest will challenge daily record highs this weekend," AccuWeather Meteorologist Haley Taylor said.
Due to the long-duration heat wave, excessive heat warnings were in effect across the Desert Southwest, including in cities such as Phoenix, Las Vegas and Palm Springs, California.
A jet arrives at sunset at Sky Harbor International Airport, Monday, July 10, 2023, in Phoenix. Phoenix is the epicenter of what may turn out to be an unprecedented extreme heat wave around the Southwest. (AP Photo/Matt York)
From late this week to early next week that northward bulge of the jet stream will be as extreme as it can be over the interior Southwest. Since this region is typically the hottest zone in the United States during the summer, it can get dangerously hot in the coming days.
- AccuWeather RealFeel® Temperatures can be more than a dozen degrees above the actual temperature in some locations. . .
- As of Friday, July 14, Phoenix has experienced 14 days in a row with high temperatures ranging from 110 to 116.
- The city is currently experiencing its third longest streak of days with temperatures at or above 110 F on record.
- Temperatures have only reached or exceeded this threshold three times there since record-keeping began in 1896.
- The three 120-degree readings all occurred in the 1990s. The city's all-time high of 122 was recorded on June 26, 1990.
- Should the string of oppressively warm nights continue for eight days, it would break the record set in July and August of 2020 and in August of 2012. . .
Where is the monsoon?
The annual event that sparks thunderstorms over the southwest, known as the North American monsoon will continue to be suppressed over the next week or two at least.
This change in wind direction that allows moisture to creep northward from the tropical Pacific, Mexico and the Gulf of Mexico has been delayed.
- Where the storms manage to bring a downpour, they may cool the local environment for a day or two.
- But, many of the storms may bring little or no rain and could kick up dust or trigger lightning-induced wildfires.
- There are some dangers when taking a dip in area mountain streams as well. The waters flowing out of the mountains from melting snow are ice-cold and could lead to dangerous cold water shock for many individuals, AccuWeather Western Weather Expert Ken Clark warned.
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...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST WEDNESDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 110 to 119. * WHERE...Portions of south central Arizona. * WHEN...Until 8 PM MST Wednesday. * IMPACTS...Extreme Heat Risk. Increase in heat related illnesses, including heat cramps, heat exhaustion, and heat stroke. Heat stroke can lead to death. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Excessive 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. Stay indoors and seek air-conditioned buildings. Drink water, more than usual, and avoid dehydrating alcoholic, sugary, or caffeinated drinks. Dress for the heat - lightweight and light- colored clothing. Eat small meals and eat more often. Monitor those with a higher vulnerability to heat, including small children. Check in on family, friends, and neighbors, especially the elderly. If engaging in outdoor activity, take longer and more frequent breaks and avoid the hottest parts of the day. Never leave kids or pets unattended in cars. Public cooling shelters are available in some areas. Consult county officials for more details, which may include guidance for proper social distancing measures. Recognize the signs and symptoms of heat-related illness. Early signs include thirst and muscle cramps. Heat exhaustion may include: cool, moist, pale skin; headache; dizziness; weakness or exhaustion; nausea. The most serious illness is heat stroke, which may include: vomiting; confusion; throbbing headache; decreased alertness or loss of consciousness; high body temperature (above 105F); hot, dry skin; rapid, weak pulse; rapid, shallow breathing; seizures. Heat stroke can be DEADLY. Treat as an emergency and call 9 1 1. Continue to monitor NWS forecasts, broadcast outlets, and local government for updates.
Max UV Index12 Extreme
WindW 9 mph
Wind Gusts22 mph
Probability of Precipitation0%
Probability of Thunderstorms0%
Precipitation0.00 in
Cloud Cover10%
CURRENT WEATHER
3:35 AM
CURRENT AIR QUALITY
TODAY
7/15
Poor
The air has reached a high level of pollution and is unhealthy for sensitive groups. Reduce time spent outside if you are feeling symptoms such as difficulty breathing or throat irritation.
Based on Current Pollutants
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