70 F. average high for September 19.
75 F. high on September 19, 2011.
Trace of rain fell at KMSP yesterday.
Frost possible over the outlying suburbs of the Twin Cities Sunday morning
70+ highs likely Monday thru Friday of next week. Don't abandon the summer clothes just yet.
Latest Arctic Sea-Ice Monitor courtesy of JAXA, Japan Aerospace Exploration Agency, Earth Observation Research Center.
"I enjoy reading your On Weather blog, but had a question. You mention frequently the Arctic ice shelf and its record reduction in size. What thoughts or explanation do you have for the record ice GROWTH in the Antarctic region? I'm not refuting the numbers in the northern hemisphere, but just wanted to know what you thought about what's going on down south...WAY down south." :)
Information Technologies Engineer
Physical Electronics, USA
Daniel - thanks for the note. You're right - there's nothing to refute when it comes to trends at the top of the world. The data is the data. As for Antarctic trends I teed up your question with a couple of climate scientists I know (and trust). Here is what Rob Honeycutt wrote back:
"Both Arctic and Antarctic sea ice extent are characterized by fairly large variations from year to year. The monthly average extent can vary by as much as 1 million square kilometers (386,102 square miles) from the year-to-year monthly average. The area covered by Antarctic sea ice has shown a small (not statistically significant) increasing trend."
Gareth Renowden e-mailed me this response:
Graphic credit above: Coverage of sea ice in both the Arctic (Top) and Antarctica (Bottom) for both summer minimums and winter maximums Source: National Snow and Ice Data Center
Graphic credit above: "Difference from average rainfall from June–July 2012 compared to the recent historical average (1981-2010). Greens indicate 3-10 inches more rain than average; brown indicate 3-10 inches less rain than average." (Map by Dan Pisut, NOAA Environmental Visualization Laboratory, based on NCEP reanalysis data from NOAA’s Earth System Research Laboratory.)
Paul's Conservation Minnesota Outlook for the Twin Cities and all of Minnesota:
Oh, you want dates and details? Here, let me shake my Ouija Board for you!
"Zeal without knowledge is fire without light." – Thomas Fuller
* photo courtesy of Media Matters, which has another angle on the (odd) PBS NewsHour story that has triggered an outcry in the scientific community.