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Fri Sep 10, 2021, 08:34 AM

NOAA - Jun-Aug 2021 Tied Prior All-Time Heat Record From 1936 For Lower 48; New Heatwave Arrives

https://www.washingtonpost.com/wp-apps/imrs.php?src=&w=916

Heat waves punished the West all summer and, even at the brink of fall, another sweltering blast had moved over the region. The heat was bringing record-setting temperatures in the Southwest and exacerbating a volatile fire situation farther north. The heat wave, which began early this week before peaking Thursday, coincided with an announcement from National Oceanic and Atmospheric Administration that the months of June through August matched the Dust Bowl summer of 1936 as the hottest on record for the Lower 48 states. ďA record 18.4% of the contiguous U.S. experienced record-warm temperatures,Ē NOAA wrote Thursday.

This latest bout of exceptionally high temperatures was generated by a large and unusually strong zone of high pressure or heat dome parked over the Four Corners area, a situation that occurred repeatedly in recent months. Temperatures near the core of the heat dome were generally 10 to 20 degrees above average, and its influence extended everywhere west of the Central Plains.

On Thursday, record highs in the 90s and low 100s were forecast from California to Colorado; Denver and Phoenix hit at least 95 and 111 degrees, both records for the date. Excessive heat warnings were issued for parts of the desert Southwest, including Las Vegas, where the forecast high was around 105 degrees. In Death Valley, it was predicted to hit 120 degrees.

https://www.washingtonpost.com/wp-apps/imrs.php?src=&w=916

EDIT

Itís no coincidence that this summerís fires have raged amid historically high temperatures. NOAA reported that California, Oregon, Idaho, Nevada and Utah all experienced their warmest June-through-August period on record. The high temperatures have also intensified severe drought conditions. Drought currently covers 94 percent of the West, according to the Federal Drought Monitor. Nearly 60 percent of the region is in extreme to exceptional drought.

EDIT/END

https://www.washingtonpost.com/weather/2021/09/09/heat-wave-west-fire-drought/

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