Dr. Jeff Masters' WunderBlog

Heavy snow collapses Minneapolis Metrodome roof
Posted by: Dr. Jeff Masters, 06:22 PM GMT del 12 Dicembre 2010 +2
A raging December blizzard buried Minneapolis, Minnesota under 17 inches of snow over the weekend, triggering the collapse early this morning of the air-inflated roof of the Minneapolis Metrodome, home of the Minnesota Vikings football team. The storm roared out of Canada on Friday morning, bringing heavy snow, sustained winds of 25 – 35 mph, and blizzard conditions through Montana, North Dakota, South Dakota, Minnesota, Wisconsin, and Michigan. The heaviest snows occurred near Osceola, Wisconsin, where 23 inches fell. The storm also dumped 21" at Noisy Basin, Montana, 14" in Williston, ND, and 14" in Negaunee, MI. Officially, 17.1” of snow fell at the Minneapolis airport; 16.3” of it on Saturday. Saturday's snow amounted to 1.75” of melted precipitation, for a snow-to-water equivalent ratio of 9:1. For those of you who've ever shoveled snow know, that's a very wet, heavy snow, and its no wonder the roof of the Metrodome had trouble with such a huge weight of snow.


Figure 1. Amount of precipitation for the 24 hours ending at 1am EST Sunday, in melted snow equivalent. Up to two inches of precipitation fell (brown colors) near the Minnesota-Wisconsin border. Image credit: NOAA /NOHRSC.

In the wake of the storm, bitterly cold air from Canada will sweep southwards into the U.S., and high temperatures near 0°F are expected for Minneapolis on Monday. Lows near -30°F are expected in northern Minnesota near International Falls on Monday night. The cold will penetrate into Florida's orange groves Monday night, with lows in the mid-20s expected in Orlando.

Jeff Masters
Dec MPLS Snow Storm (Holocron)
Dec MPLS Snow Storm
()
Window Frost (tomekandjola)
Window Frost
Categories: Winter Weather
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51. beell 01:14 AM GMT del 13 Dicembre 2010    
And Neap, may want to step through HAMweather by the day for the past week.

Record lows and record low maximums far outnumber the highs.
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52. GeoffreyWPB 01:19 AM GMT del 13 Dicembre 2010    
Quoting lickitysplit:
Nothing to see here. Global warming is a hoax. Move along.


Every time a ding-a-ling blogs...an angel gets its wings.
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53. caneswatch 01:33 AM GMT del 13 Dicembre 2010    
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54. weatherbro 01:42 AM GMT del 13 Dicembre 2010    
Altamonte Springs

Monday
Clear
49° F | 23° F

Tuesday
Clear
52° F | 29° F

Wednesday
Clear
65° F | 36° F

Thursday
Clear
72° F | 49° F

Friday
Partly Cloudy
72° F | 50°
Member Since: Maggio 26, 2007 Posts: 47 Comments: 1155
55. Neapolitan 01:53 AM GMT del 13 Dicembre 2010    
Quoting beell:
And Neap, may want to step through HAMweather by the day for the past week.

Record lows and record low maximums far outnumber the highs.

That's what I said, isn't it? That the only day in the past seven that highs outnumbered lows was yesterday (23 to 9)?
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56. caneswatch 01:56 AM GMT del 13 Dicembre 2010    
For Royal Palm Beach, FL:

Monday Night: Mostly clear, with a low around 29. Wind chill values as low as 20. Northwest wind between 11 and 15 mph, with gusts as high as 20 mph.
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57. GeoffreyWPB 02:04 AM GMT del 13 Dicembre 2010    
Only 62 here now in Lake Worth.
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58. Neapolitan 02:04 AM GMT del 13 Dicembre 2010    
The snowline is almost to Florida; radar loops show flakes falling around Dothan, Alabama, a town only a dozen or so miles from the state line.

Yikes...
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59. Tazmanian 02:08 AM GMT del 13 Dicembre 2010    
Quoting Neapolitan:

No, 2010. Isn't it 2009? What? WHAT!? How did I miss 2010?!?! Why didn't someone tell me?!!! Oh, man, is my tax return gonna be late!!

:-)

Yes, I meant 2011. Fixed. Gracias...



LOL ok
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60. Tazmanian 02:10 AM GMT del 13 Dicembre 2010    
Quoting Beachfoxx:
Oh it took me over an hour to drive from friend's house to my mothers. 7 miles. Had to wait at a stop for salt truck and truly there was not that much snow on the road.



hi and hi all i have not for got in about you still dont have the internet at home yet but do have plans on geting it soon all so have a nic new laptop all so if you guys want too see what it looks like stop by my dusted old blog and make a commet on it
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61. beell 02:30 AM GMT del 13 Dicembre 2010    
Quoting Neapolitan:

That's what I said, isn't it? That the only day in the past seven that highs outnumbered lows was yesterday (23 to 9)?


My bad. That is what you said. Go figure.
I couldn't find a source for the YTD records either...
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62. PSLFLCaneVet 02:48 AM GMT del 13 Dicembre 2010    
Quoting ShenValleyFlyFish:
Got to wonder if could do a controlled deflate and remove snow and re-inflate.



Sorry, but no. The snow is much easier to remove when the roof is inflated, due to the slope. Letting it collect at the bottom would put too much strain on the panels.
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63. EnergyMoron 02:48 AM GMT del 13 Dicembre 2010    
Quoting Neapolitan:

That's what I said, isn't it? That the only day in the past seven that highs outnumbered lows was yesterday (23 to 9)?


Actually, for a "cold snap" this is still quite balmy. By this time the last two years we had already had snow in Houston... 1989 was truly cold around Christmas (7 degree min and I can remember not being able to get out owing to ice)... 1983 was the famous Siberian express event around Christmas. It seemed as if half the pipes burst in the city in that event. And in 1982 there was a day that was about 15 and I can remember being an idiot grad student who didn't look at the weather back then and spending 18 hours straight inside came out to... something in the teens without a jacket.

Oh well... get to test out the new setup whereby I can turn off only the cold water on nights like these (those darn drops to the outdoor faucets are the most likely to freeze).

(Sarcasm flag on) Yah, it's getting warmer (sarcarsm flag off... my attempt at statistics is invalid)
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64. GeoffreyWPB 02:55 AM GMT del 13 Dicembre 2010    
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65. GeoffreyWPB 03:02 AM GMT del 13 Dicembre 2010    
Still 62....but very windy.
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66. EnergyMoron 03:20 AM GMT del 13 Dicembre 2010    
Quoting GeoffreyWPB:
Still 62....but very windy.


That's toasty... down to 7.8 C here in Houston and it is dropping fast.
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67. beell 03:23 AM GMT del 13 Dicembre 2010    
Some light snow in northern AL & GA. Nothing in the best available surface obs reaching the ground in southern AL. Radar can be misleading sometimes.

UCAR Metar Java Applet

or this one.

NOAA Forecast Systems Laboratory - Metar Data
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68. ScottLincoln 03:40 AM GMT del 13 Dicembre 2010    
Quoting beell:


My bad. That is what you said. Go figure.
I couldn't find a source for the YTD records either...


And as far as climate for the year goes, the YTD records are the only ones that matter. And even with those, they are still just 1 year, and it is still less than 5% of the planet's surface...
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69. beell 03:49 AM GMT del 13 Dicembre 2010    
Quoting ScottLincoln:


And as far as climate for the year goes, the YTD records are the only ones that matter. And even with those, they are still just 1 year, and it is still less than 5% of the planet's surface...


True. A few days of continental record highs or lows do not make a valid argument for a warming or a cooling planet.
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70. EnergyMoron 03:52 AM GMT del 13 Dicembre 2010    
Quoting beell:


True. A few days of continental record highs or lows do not make a valid argument for a warming or a cooling planet.


SARCASM_START What ya mean you don't like my argument from Houston. I mean like it is balmy here. SARCASM_END
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71. beell 04:12 AM GMT del 13 Dicembre 2010    
Quoting EnergyMoron:


SARCASM_START What ya mean you don't like my argument from Houston. I mean like it is balmy here. SARCASM_END


LOL. NE side of Harris County here. Balmy implies a certain amount of humidity.

SARCASM continues...
KHGX Drought Information Statement - December 11th, 2010
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72. TaylorSelseth 04:14 AM GMT del 13 Dicembre 2010    
-10F here in Fargo, BRRRRR!!!
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73. tornadodude 04:16 AM GMT del 13 Dicembre 2010    
Quoting TaylorSelseth:
-10F here in Fargo, BRRRRR!!!



brrrr is right!
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74. Ossqss 04:18 AM GMT del 13 Dicembre 2010    
Howdy, quite impressive from today !

http://spaceweather.com/images2010/12dec10/triplecme768.gif?PHPSESSID=nc7retta336hfamopfm8gipel3

This SDO image was chosen for LIFE magazine's 2010 Pictures of Year. Do you know how many Earths could fit in that circle of energy?

http://sdo.gsfc.nasa.gov/assets/img/firstlight/preview/20100330_304sub_069.jpg


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75. tornadodude 04:24 AM GMT del 13 Dicembre 2010    
Quoting Ossqss:
Howdy, quite impressive from today !

http://spaceweather.com/images2010/12dec10/triplecme768.gif?PHPSESSID=nc7retta336hfamopfm8gipel3

This SDO image was chosen for LIFE magazine's 2010 Pictures of Year. Do you know how many Earths could fit in that circle?

http://sdo.gsfc.nasa.gov/assets/img/firstlight/preview/20100330_304sub_069.jpg




how many?
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76. EnergyMoron 04:25 AM GMT del 13 Dicembre 2010    
Quoting TaylorSelseth:
-10F here in Fargo, BRRRRR!!!


Welcome Taylor (somebody has to say this on the extreme night shift of those of us cheering on the single digits).

Since I'm from Nebraska and did paper routes as a kid... bundle up but -5 is still... manageable.

233. That's cold. 233

(BTW, with units, 233 K. The problem is if you say "-40 F" somebody inevitably tells you "it's the same in celsius" and if you say "-40" somebody inevitably says "what are the units").

233. Cold. Very cold.
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77. EnergyMoron 04:30 AM GMT del 13 Dicembre 2010    
Quoting Ossqss:
Howdy, quite impressive from today !



Yes, shows that solar activity does not impact things as much as professional deniers would have some think.

The rather balmy (sorry beell... there were a few drops last night in this "dry" front... yah the drought stinks with my extensive gardens) weather we are having was predicted far in advance,


SARCASN_ON and the 12/12 solar episode didn't impact it. SARCASM_OFF

much... statistics...

"There are lies, damn lies, and statistics"--Mark Twain quoting somebody else.
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79. Ossqss 04:35 AM GMT del 13 Dicembre 2010    
Quoting tornadodude:


how many?


You will have to do some math :)

Check these numbers and then estimate the factors and, well , you know, guess. LOL

695,500km/6,350km= 109 earths

Sun radius divided by earth radius =109 earths

Sun Circumference divided by Earth Circumference=109 earths
4,379,000 km/40,075 km=109 earths

Sun radius=695,500km
Earth radius=6,350km

Sun Circumference=4,379,000km
Earth Circumference=40,075km

Volume is a different answer:
Sun volume divided by Earth volume=1.3 million earths

Sun volume =1,412,200,000,000,000,000 km3
Earth volume=1,083,200,000,000 km3

or from here to work it backwards and figure how you want to view the comparison. Gnight


http://www.suntrek.org/sun-as-a-star/sun-and-earth/comparing-size-sun-and-earth.shtml
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83. Ossqss 04:41 AM GMT del 13 Dicembre 2010    
Quoting EnergyMoron:


Yes, shows that solar activity does not impact things as much as professional deniers would have some think.

The rather balmy (sorry beell... there were a few drops last night in this "dry" front... yah the drought stinks with my extensive gardens) weather we are having was predicted far in advance,


SARCASN_ON and the 12/12 solar episode didn't impact it. SARCASM_OFF

much... statistics...

"There are lies, damn lies, and statistics"--Mark Twain quoting somebody else.


Fitting handle :)

out>>>>>>>>>
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84. EnergyMoron 04:43 AM GMT del 13 Dicembre 2010    
Quoting DoverWxwatchter:
Wind less out of the north and more out of the west than I'd expect for an epic arctic outbreak.




Agree.

6.9 C.... that is 0.9 C in 1 hours and 20 minutes.

I am predicting no freeze for my zip code for tonight.

Goodnight offseason night shift :)

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85. MississippiBoy 05:30 AM GMT del 13 Dicembre 2010    
What does the outlook look like for temps. and moist.at Chritmas?
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86. xcool 06:04 AM GMT del 13 Dicembre 2010    
Meteorologist Chris Hebert of ImpactWeather expects a busy year in 2011 although not quite on par with the overall activity seen during this summer. Here's Chris' outlook for next season:

"It's very early, but there are some long-range predictors in which we're fairly confident. The very warm Atlantic Ocean will likely remain warmer than normal again in 2011. The current warm phase of the Atlantic Multidecadal Oscillation began in 1995. The last two warm AMO cycles lasted 40-45 years.The current warm AMO has lasted 16 years, so it's safe to say that the general warmth in the Atlantic Ocean will continue in 2011.

In addition, the long-range European model's prediction for mean sea level pressure in the deep tropics is for significantly below normal pressures through the coming spring. This would suggest a weaker than normal Bermuda High center and weaker easterly trade winds. The end result is reduced upwelling of cool water in the MDR. Thus, a warm tropical Atlantic in 2011.

The current strong La Nina will not likely be gone by next summer. All long-range models predict at least a weak La Nina through mid summer. A weak La Nina would mean more favorable conditions for development in the Atlantic Basin in 2011 than in a typical season.

It's too early to determine if the lower than normal pressures in the deep tropics will continue through the 2011 hurricane season. Chances are good that the sea level pressures across the Tropical Atlantic will remain below normal through the 2011 hurricane season, but the pressures will probably be somewhat higher than was experienced during the 2010 hurricane season.

This would signal a stronger Bermuda High in 2011 than in 2010. Weaker than normal, but stronger than it was during the 2010 hurricane season. A stronger Bermuda high (than 2010) might mean less storms that develop off West Africa will be re-curving out to sea east of the Caribbean in 2011. I'd expect an increased risk for a hurricane landfall across the northeast Caribbean in 2011 due to a slightly stronger Bermuda High.

Though it's way too early to speculate about potential U.S. landfalls in 2011, a slightly stronger Bermuda High may increase the risk of a hurricane impact on the Gulf Coast or the East U.S. Coast in 2011. Typically, about 1 in 4 hurricanes that forms in the Atlantic Basin strikes the U.S. We were very lucky this year to have 12 hurricanes form and not a single one hit the U.S. It's unlikely we'll be so lucky in 2011.

14 or 15 named storms in 2011 with 7-8 hurricanes and 4 major hurricanes."
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87. TampaFLUSA 06:19 AM GMT del 13 Dicembre 2010    
Lots of Florida official NWS stations haven't updated since 9pm or so eg Orlando Intl and Tampa Intl.





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88. geepy86 06:34 AM GMT del 13 Dicembre 2010    
wonder why
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89. IKE 10:37 AM GMT del 13 Dicembre 2010    
My area had a forecast low this morning of 22. My low so far has been 32.7.
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90. BahaHurican 11:08 AM GMT del 13 Dicembre 2010    
Morning all. 68 and windy here this a.m.... Winds steady @ 20 w/ gusts 2 31....I'm kinda wondering now when this latest front will move through...
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91. IKE 11:09 AM GMT del 13 Dicembre 2010    
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOBILE AL
400 AM CST MON DEC 13 2010

.SHORT TERM (TODAY AND TONIGHT)...MAIN CONCERN FOR TODAY AND TONIGHT
WILL BE COLD TEMPS WELL BELOW NORMAL AND GUSTY NORTHERLY
WINDS...GRADUALLY DECREASING LATER TODAY AND OVERNIGHT. FOR TODAY
HIGH PRESSURE OVER THE CENTRAL PLAINS SHIFTS SOUTH AND EAST ACROSS
THE MID TO LOWER MS RIVER VALLEY BY LATE THIS AFTERNOON AND
OVERNIGHT...RESULTING IN LOWER WIND SPEEDS AND COLDER TEMPS. DUE TO
THE POSITION OF THE RIDGE AXIS THIS MORNING NORTHERLY WINDS OF 10 TO
15 KNOTS HAVE KEPT TEMPS ABOVE HARD FREEZE CRITERIA. AS A RESULT
HAVE CANCELLED THE HARD FREEZE WARNING FOR THE REMAINDER OF THIS
MORNING AS WELL AS THE WIND CHILL ADVISORY FOR THIS MORNING AS WIND
CHILLS WILL BE 15F OR HIGHER.



Blown forecast for this morning.
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92. BahaHurican 11:16 AM GMT del 13 Dicembre 2010    
Hey, Ike. It's not freezing here literally, but that wind out there is reminding me of the meaning of the "chill" in wind chill.... lol . . . I gotta head out in a few minutes, but I am hoping I don't have to stay out in the wind too long...



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93. IKE 11:19 AM GMT del 13 Dicembre 2010    
Quoting BahaHurican:
Hey, Ike. It's not freezing here literally, but that wind out there is reminding me of the meaning of the "chill" in wind chill.... lol . . . I gotta head out in a few minutes, but I am hoping I don't have to stay out in the wind too long...





It's windy here now. I can hear it. Should relax here later today. Warming trend to near 70 by the later part of the week.

Morning low now 32.0.
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94. BahaHurican 11:26 AM GMT del 13 Dicembre 2010    
I guess we'll get the "worst" of that sometime overnight tonight. Not looking forward to it getting down to 50 like last week....
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95. BahaHurican 11:27 AM GMT del 13 Dicembre 2010    
Hey, it's almost 6:30... I gotta head out... Brrr.... lol.

Ya'll have a great now....
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96. IKE 11:28 AM GMT del 13 Dicembre 2010    
Quoting BahaHurican:
I guess we'll get the "worst" of that sometime overnight tonight. Not looking forward to it getting down to 50 like last week....


50 degrees....lol. That's almost perfect:)

Have a nice day!
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97. bassis 11:54 AM GMT del 13 Dicembre 2010    
26 deg in concord, NC

The ground is white from last night
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98. kellnerp 12:01 PM GMT del 13 Dicembre 2010    
City schools closed in northern Indiana. Country schools open with a delay. Wednesday predicted to get down to 9F. Winds running around 20mph right now. 6" more predicted.

And to add insult to injury a tire on my snowblower went flat.
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99. IKE 12:10 PM GMT del 13 Dicembre 2010    
31.1 was my low...so far. No snow...no ice. I knew there was a reason I liked Florida weather!
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100. Autistic2 12:17 PM GMT del 13 Dicembre 2010    
My wife gave me my present early. a new weather station for me! but I don't want to go out side to put it on the 10 ft pole. Burrr
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101. Thundercloud01221991 12:20 PM GMT del 13 Dicembre 2010    
I am in western NY... and temperatures have already fallen from near 40 yesterday to 15 this morning... and they are still falling. I also expect to get heavy lake effect snow today through wednesday with over 1 foot of snow expected as high as 2 feet of snow is possible
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About JeffMasters
Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.

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