Posted at 10:50 AM on February 5, 2010
by Mark Seeley
Because of numerous recent derogatory comments about climate scientists who work with global data sets, Dr. Peter Stott from the United Kingdom Meteorological Office has, just this week, offered an explanation of the three primary and independent global temperature data sets that are used by scientists to discern trends. It is interesting to note that trend analysis of the three data sets produces similar results........RECENT WARMING...especially since 1970.
Reading Dr. Stott's explanation might provide some perspective on why most climate scientists are convinced that temperatures on a global basis are indeed rising. Each location with a temperature record is given equal weight. Greater weight is not given to population centers or other specific geographic regions. In addition the measurements from ocean platforms (buoys) are also considered in the analysis.(2 Comments)
Posted at 3:40 PM on February 5, 2010
by Paul Huttner
Super Bowl weekend is bringing Super Bowl weather to much of the nation.
A major (and possibly record breaking) snow storm is plowing through the east coast this weekend. Winter storm warnings are flying all weekend long for much of the eastern U.S. including areas around Washington D.C. and Virginia. Snowfall totals of 20" to 30" are likely for these areas. It's a super storm for Super Bowl weekend.
These Mid-Atlantic Nor'easters have all the ingredients to produce heavy snows. Cold air inland, deepening low pressure over warm Gulf Stream waters in the Atlantic, and plenty of moisture to draw from the Atlantic Ocean. They may see some thundersnow with this system in convective snowbursts. These mini thunderstorms within the bigger snow storm can produce incredible snowfall rates of 2" to 3" per hour.
These heavy snowfall totals would make for headlines and extended news coverage anywhere, including the Twin Cities. The difference out east is that they don't have nearly the numbers or sophistication when it comes to snow plowing and removal. You can say what you want about MNDOT, but when it comes to moving snow and keeping roadways relatively safe, they are the best in the nation in my opinion.
More snow on the way for Minnesota:
After relatively quiet Saturday, it looks like another potentially long duration snowfall event is heading into Minnesota starting on Sunday. The system is still getting organized, but it looks like a compact and potent upper low will dive down from Canada Sunday and stall over the Upper Midwest early next week. These "Manitoba Maulers" are relatively rare, but they can produce significant long duration snows. This unusual system is moving backwards, or retrograding, in the overall flow pattern.
The result for us is that as the system sits over us and deepens it will have a chance ot pull in moisture form the south. Details will evolve over the weekend, but it looks initially like snow will spread from north to south Sunday, increase in coverage and intensity Monday, and possibly linger into Tuesday. There is the potential for several inches of snow with this system. It's too early for specifics, but this system does appear to have the potential to put down 6"+ somewhere in Minnesota by late Monday.
Enjoy the quieter Saturday, and stay tuned for updates Sunday PM as our next potential snow maker approaches.