Wednesday, May 22, 2013

Latest news, weather, high school sports for Michigan’s Upper Peninsula

Home > News : Blog
March 2012 vs 2013: A Complete Reversal?
Posted: 03.12.2013 at 4:39 PM
Karl Bohnak

Chief Meteorologist

0
March 2012: Historic Warmth
Slideshow
Photo:

March 2012 vs 2013: A Complete Reversal?

March so far started cold, moderated and then a major snowstorm hit a good portion of Upper Michigan.  Last year, a snowstorm hit early in the month, but that’s where the similarity stops.  March 2012 brought historic warmth to the U.P. and a good share of the eastern U.S. (Image 1 above).  The weather over the U.S. was dominated by a huge ridge that covered much of eastern North America.  It helped pump up warmth that never really quit.

 

This year, the pattern configuration is much different.  Here’s a case in point:  on March 11, 2012, a record high of 63 was set at the National Weather Service (NWS) near Negaunee. This year, a record 14.4 inches of snow fell on the 11th at the NWS. Last year, the pattern was dominated by that building ridge (Image 2).  This year, a deep trough was forming right where the ridge was strongest last year (Image 3).   Last year the ridge kept building, reaching a high mark about St. Patty’s Day.  That day, the high reached a record-shattering 75 degrees.  The next three days it was 78 and on March 20, 2012, a historic high of 81 degrees was observed.

 

I’m not predicting a record cold March 2013, but it does look like the cold will hold for a good share of the month.  Here’s a 15-day forecast valid on March 26 (Image 4).  It shows essentially the same pattern that’s been dominating the last couple of weeks; a deep, cold trough nearby with high latitude blocking.  To say spring will be delayed a bit is an understatement—especially compared to last year.

Recent Posts by Karl Bohnak

A Summer Heat Wave: May 21, 1994   

May 21, 1994:  A Summer Heat Wave

The First Boat Finally Arrives: May 20, 1875   

May 20, 1875: The First Boat Finally Arrives

Fearful Destruction   

May 17-18, 1906: “Fearful Destruction”

More posts »

Recent Stories by Karl Bohnak

Possible light icing for portions of the U.P.   

National Weather Service issues Winter Weather Advisories for some areas

Widespread Snowfall   

Severe Thunderstorms southern & eastern U.P.   

Severe Thunderstorms southern & eastern U.P.

More stories »

ADVERTISEMENT
Check This Out!
Live Chats
Check the live chat replays and see a new one Wed.
Used Car Central
See what used cars are being sold in your area.
Home & Garden
Check out the Home & Garden section of Best Bets.
Automotive
Check out the Automotive section of Best Bets.
Follow Upper Michigan's Source
Get news and weather notifications on your phone by downloading the iPhone or Android app below
Sign up to get alerts and updates for breaking news, severe weather, and deals:
submit