Thursday, November 17, 2022

Like Yesterday But More So

This morning's sounding from Yakutat reported a 500mb height of 5820m - higher than has ever been observed in October through March (data back to 1946).  Even in April there's only been one occasion with a stronger ridge, and none in May.  Here's a graphic from my simple monitoring page:

And it's a bona fide thaw for much of the North Slope: temperatures are well above freezing across large areas to the north of the Brooks Range.  The CRN site at Toolik reported 44°F today, and Ivotuk made it up to an incredible 47°F.  The Ivotuk CRN has only been operating since 2014, but this is the warmest observed there between October 5 and May 9.

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