Ferret Work

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Image courtesy Accuweather

For what seems weeks most of the British Isles has been sat underneath a cut off high pressure system, making it hot and very dry. The chances for storm activity increase in the early part of next week as moisture is finally being forecast at relatively reliable range, although this will be accompanied by an increase in humidity, before possible cooler wetter weather follows. Despite the lack of participative action, there has been dry weather action.

Based on a comment over at Weather Action:

the Times (sadly pay walled) reported two dust devils this month. Whilst searching for local news reports, I also found two other events for July. Note the dates of which Piers Corbyn said

Yes not stormy but still we had this. At the same time explicit events forecast were confirmed on Sun – Earth facing major activity (AR1785); and USA intense hail + derecho.

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July 20, 1930 : 31% Of The US Was Over 100 Degrees

Real Science

On this date in 1930, 31% of US HCN stations were over 100F, and 61% were over 90F.

100 degree temperatures were recorded in 25 states :

Arizona, Nebraska, Ohio, Virginia, Illinois, California, Kansas, Kentucky, Maryland, Arkansas, Indiana, Michigan, Missouri, Texas, West Virginia, Wisconsin, Iowa, Oklahoma, Tennessee, North Carolina, Pennsylvania, South Dakota, Louisiana, Georgia, and Mississippi.

ScreenHunter_63 Jul. 20 18.25

CO2 was below 310 PPM at the time, and Hansen tells us that heatwaves like this were impossible with CO2 that low.

 BUCKEYE AZ 110 ASHLAND NO 2 NE 110 FAIRBURY 5S NE 110 CIRCLEVILLE OH 109 WOODSTOCK 2 NE VA 109 DU QUOIN 4 SE IL 108 BRAWLEY 2 SW CA 107 ORLAND CA 107 MANHATTAN KS 107 MCPHERSON KS 107 WAKEENEY KS 107 SYRACUSE NE 107 NORWALK WWTP OH 107 CHARLOTTESVILLE 2W VA 107 LINCOLN VA 107 INDIO FIRE STN CA 106 ATCHISON KS 106 HAYS 1 S KS 106 MINNEAPOLIS KS…

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