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Interagency Programs

LA Times: When it comes to Southern California’s heat wave, the worst is yet to come

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Firefighters labored in scorching heat Sunday against five separate brush fires across Southern California as forecasters warned of more triple-digit temperatures in inland communities.

The punishing heat wave broke records on Sunday in Lancaster, Palmdale and Sandberg, which saw highs of 108, 108 and 99 degrees, respectively. With a dry, high-pressure system parked over the Southwest, temperatures are expected to keep climbing through midweek, according to the National Weather Service.

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Mashable: A record-smashing heat wave will scorch the southwestern U.S.

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A brutal heat wave is expected to scorch the southwestern U.S. this week, with some cities likely to see all-time record high temperatures.

The National Weather Service (NWS) said this will likely be one of the most intense heat waves seen in many years across desert Southwest, including parts of California, Arizona, Nevada, and Utah.

High temperatures could climb well above 110 degrees each day for the next week across the area. Many desert locations, including Tucson and Phoenix, could reach the 120-degrees Fahrenheit mark on Tuesday or Wednesday, followed by a slow decline in temperatures in days to come.

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Protecting Outdoor Workers from Extreme Heat

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Many outdoor workers get uncomfortably warm during the hot days of summer. As employers are responsible for providing a safe workplace, they need to know when uncomfortable becomes unhealthy.

Predictions for the summer of 2017 show most of the contiguous United States has elevated chances for warmer-than-average temperatures. The summer outlook map and other forecasts in this Web app can help outdoor workers and their supervisors understand heat hazards, keep workers safe and productive, and even save lives.

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NOAA Releases Summer Climate Outlook for 2017

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Schools are letting out, Memorial Day is nearly here, and for many Americans that means  the unofficial start of summer. And if it’s summer, then it ‘s time to start paying attention to the risk of extreme heat. According to NOAA’s summer outlook, most of the United States is favored to have a hotter than average summer in 2017. Only in the Great Plains do forecasters think the chances for a cool or a normal summer are equal to the chances of a hot summer. Everywhere else—from Alaska to southern California, and from Maine to Texas—odds are tilted toward well above average warmth. The absolute highest chances for a much warmer than usual summer are in Hawaii. (see the large version of the map below for Hawaii and Alaska.

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New Case Study: Protecting People from Sweltering City Summers

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Climate models predict an increase in the frequency, severity, and length of heat waves in coming decades. Federal, state, and local agencies are working to provide more advanced warnings and services to help health care workers, social services providers, and the general public better prepare for and respond to extreme heat events.

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Record heat possible in Washington region Wednesday and Thursday

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The area’s first heat wave of 2017 is set to start Wednesday. Between Wednesday and Friday, high temperatures should range between 88 and 94 degrees, placing several long-standing records in jeopardy. At the heat wave’s peak intensity Thursday, it will feel as hot as the mid-to-upper 90s factoring in midsummer-like humidity. Throughout the heat wave, temperatures will be about 15 degrees above normal.

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Planetary Wave Resonance may cause Heat Waves to last longer

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“The idea is that climate change doesn’t merely increase the overall likelihood of heat waves, say, or the volume of rainfall — it also changes the flow of weather itself. By altering massive planet-scale air patterns like the jet stream (pictured above), which flows in waves from west to east in the Northern Hemisphere, a warming planet causes our weather to become more stuck in place. This means that a given weather pattern, whatever it may be, may persist for longer, thus driving extreme droughts, heat waves, downpours and more.” 

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