Sweltering temps reach record-breaking highs in 30 minutes at SFO
"You know you're in San Francisco when it's 74 degrees and someone tells you, 'Try to stay cool in this heat,'" Twitter user Lark Bunting wrote.
On Wednesday afternoon, already scorching temps increased at an astronomical rate. At 1:15 p.m., the observation deck at the San Francisco Airport indicated the temperature to be about 77 degrees.
Within the next hour, the temperature reached 93 – pushing the temperature up 16 degrees higher in such a short amount of time.
The temperature was 7 degrees hotter than what was expected for the daily forecast, and it broke a daily record high of 85 degrees, set in 1996.
The dramatic rise in temperature was a result of "microscale warm air advection," the National Weather Service reported. Warmer air over the inland portions of the San Bruno Gap was pushed toward the airport when the wind shifted directions – in this case, from northeast to west.
more:
http://www.sfgate.com/weather/article/Sweltering-temps-reach-record-breaking-highs-14304793.php?utm_source=facebook.com&utm_campaign=socialflow&utm_medium=referral&fbclid=IwAR1fKG5zSdxV7gQCsisRLP6yCCtaOIwXPsmANhbCzuCC0a7rwuxOUTXhRI0
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