18" snow at Blooming Prairie, Minnesota yesterday
81 F. high reported in the Twin Cities on May 2, 2012.
Tulsa, Oklahoma saw a trace of snow yesterday - the latest snow on record.
48 F. high yesterday in the Twin Cities.
65 F. average high for May 2.
81 F. high on May 2, 2012.
Trace of snow fell yesterday at MSP International Airport, but up to 8"+ for parts of Dakota County.
Proving cause and effect is difficult, at times impossible, but talking with climate scientists there seems to be a strong causal connection between more weather extremes and record warming taking place in the Arctic. 90% of warming is going into the oceans, and some of that warmth is showing up in the Arctic, which has lost 70-75% of its ice volume in 50 years, reaching a record low in September, 2012. A warming Arctic can displace the cold air that should be at the top of the world farther south over Canada, Europe and Asia, setting the stage for more extremes, more head-scratching "Black Swan" weather events.
Changes in the Arctic are happening much faster than predicted. Richard Alley at Penn State believes some of these changes are taking place 100 years ahead of schedule. Climate scientist James Hansen believes warming of the oceans and atmosphere is equivalent to 400,000 Hiroshima bombs going off every day. We may be undergoing a "phase transition" in the climate system, which is non-linear. Nature rarely moves in a straight line. Alarmist hype? I sure hope so. But the reality: we're in uncharted water when it comes to global changes and impact on local weather.
Photo credit above: REUTERS/Gene Blevins. "A fast moving brush fire approaches a home in the Camarillo Springs area of Ventura County, California May 2, 2013. Southern California is under a high fire alert due to high temperatures and high winds."
FRIDAY NIGHT: Rain likely. Low: 37