In recent days I’ve been pointing out the incredible persistency of the chilly pattern seen really from the Plains on east, a pattern that kicked off early last winter and hasn’t really changed much since.
The reason why winter was so cold across much of the US last year was a large part due to the warm anomaly over the Gulf of Alaska. The reason it’s still chilly? well that warm water remains. The reinforcing driver for the continued chill is in-part supported by the oncoming El Nino.
Check out the little difference in GOA water temp anomalies between January 15 and July 14.
15 Jan
14 July
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The CFSv2 in week 1 has the very deep trough over the Great Lakes with the ridge trying to come back north week 2 but notice the lack of positive heights anywhere week 3 and 4.
The latest trough means business…
Source: AccuWeather
Departures from normal with today’s highs.
Source: weather.com
Current temperatures show a huge contrast between heat wave conditions over the Great Basin verses autumnal air over the Upper Midwest!
Source: weather.com
As we look ahead to not only August but Sep, Oct, Nov and Dec, there’s nothing but dominant cool across the US according to the CFSv2.
See today’s video for the discussion.
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