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Title: Strongest storm ever recorded in the Midwest smashes all-time pressure records
Source:
Wunderground
URL Source: http://www.wunderground.com/blog/Je ... ers/comment.html?entrynum=1674
Published: Oct 27, 2010
Author: Dr. Jeff Masters
Post Date: 2010-10-27 21:14:43 by go65
Keywords: None
Views: 8466
Comments: 19
Tornadoes, violent thunderstorms, and torrential rains swept through a large portion of the nation's midsection yesterday, thanks to the strongest storm ever recorded in the Midwest. NOAA's Storm Prediction Center logged 24 tornado reports and 282 reports of damaging high winds from yesterday's spectacular storm, and the storm continues to produce a wide variety of wild weather, with tornado watches posted for Mississippi, Alabama, and Georgia, a blizzard warning for North Dakota, high wind warnings for most of the upper Midwest, and near-hurricane force winds on Lake Superior. The mega-storm reached peak intensity late yesterday afternoon over Minnesota, resulting in the lowest barometric pressure readings ever recorded in the continental United States, except for from hurricanes and nor'easters affecting the Atlantic seaboard. So far, it appears the lowest reading (not yet official) was a pressure of 28.20" (954.9 mb) reduced to sea level reported from Bigfork, Minnesota at 5:13pm CDT. Other extreme low pressures from Minnesota during yesterday's storm included 28.22" (956 mb) at Orr at 5:34pm CDT, 28.23" at International Falls (3:45pm), and 28.23" at Waskuh at 5:52pm. The 28.23" (956mb) reading from International Falls yesterday obliterated their previous record of 28.70" set on Nov. 11, 1949 by nearly one-half inch of mercury--a truly amazing anomaly. Duluth's 28.36" (961 mb) reading smashed their old record of 28.48" (964 mb) set on Nov. 11, 1998. Wisconsin also recorded its lowest barometric pressure in history yesterday, with a 28.36" (961 mb) reading at Superior. The old record was 28.45" (963.4 mb) at Green Bay on April 3, 1982. The previous state record for Minnesota was 28.43" (963 mb) at Albert Lea and Austin on Nov. 10, 1998. Figure 1. Visible satellite image of the October 26, 2010 superstorm taken at 5:32pm EDT. At the time, Bigfork, Minnesota was reporting the lowest pressure ever recorded in a U.S. non-coastal storm, 955 mb. Image credit: NASA/GSFC. Yesterday's records in context Yesterday's 28.20" (955 mb) low pressure reading in Minnesota breaks not only the 28.28" (958 mb) previous "USA-interior-of-the-continent-record" from Cleveland, Ohio during the Great Ohio Storm of Jan. 26, 1978 (a lower reading in Canada during this event bottomed out at an amazing 28.05"/950 mb), but also the lowest pressure ever measured anywhere in the continental United States aside from the Atlantic Coast. The modern Pacific Coast record is 28.40" (962mb) at Quillayute, Washington on Dec. 1, 1987. An older reading, taken on a ship offshore from the mouth of the Umpqua River in Oregon during the famous "Storm King" event on January 9, 1880, is tied with yesterday's 28.20" (955 mb.) The lowest non-hurricane barometric pressure reading in the lower 48 states is 28.10" (952 mb) measured at Bridgehampton, New York (Long Island) during an amazing nor'easter on March 1, 1914 (see Kocin and Uccellini, "Northeast Snowstorms; Vol. 2., p. 324, American Meteorological Society, 2004.) The lowest non-hurricane barometric pressure reading from anywhere in the United States was a 27.35" (927 mb) reading at Dutch Harbor, Alaska on Oct. 25, 1977. The lowest hurricane pressure reading was the 26.34" (892 mb) recorded in 1935 during the Great Labor Day Hurricane. The six most intense storms in history to affect the Great Lakes According to the Chicago branch of the National Weather Service and Christopher C. Burt, our Weather Records blogger, the following are the six lowest pressures measured in the U.S. Great Lakes region: 1. Yesterday's October 26, 2010 Superstorm (955 mb/28.20") So, the famed storm that sank the ore carrier Edmund Fitzgerald in 1974, killing all 29 sailors aboard, was weaker than the current storm. Indeed, I wouldn't want to be on a boat in Lake Superior today-- sustained winds at the Rock of Ages lighthouse on Isle Royale were a sustained 68 mph, gusting to 78 mph at 3am EDT this morning! Yet Another Remarkable Mid-latitude Cyclone so far this Year! Yesterday's superstorm is reminiscent of the amazing low pressures reached earlier this year (Jan. 19- 22) in the West, where virtually every site in California, Nevada, Utah, Arizona, southern Oregon, and southern Idaho--about 10 - 15% of the U.S. land area--broke their lowest on record pressure readings. However, the lowest readings from that event fell well short of yesterday's mega-storm with 28.85" (977 mb) being about the lowest recorded at any onshore site. Commentary We've now had two remarkable extratropical storms this year in the U.S. that have smashed all-time low pressure records across a large portion of the country. Is this a sign that these type of storms may be getting stronger? Well, there is evidence that wintertime extratropical storms have grown in intensity in the Pacific, Arctic, and Great Lakes in recent decades. I discuss the science in detail in a post I did earlier this year. Here is an excerpt from that post: General Circulation Models (GCMs) like the ones used in the 2007 IPCC Assessment Report do a very good job simulating how winter storms behave in the current climate, and we can run simulations of the atmosphere with extra greenhouse gases to see how winter storms will behave in the future. The results are very interesting. Global warming is expected to warm the poles more than the equatorial regions. This reduces the difference in temperature between the pole and Equator. Since winter storms form in response to the atmosphere's need to transport heat from the Equator to the poles, this reduced temperature difference reduces the need for winter storms, and thus the models predict fewer storms will form. However, since a warmer world increases the amount of evaporation from the surface and puts more moisture in the air, these future storms drop more precipitation. During the process of creating that precipitation, the water vapor in the storm must condense into liquid or frozen water, liberating "latent heat"--the extra heat that was originally added to the water vapor to evaporate it in the first place. This latent heat intensifies the winter storm, lowering the central pressure and making the winds increase. So, the modeling studies predict a future with fewer total winter storms, but a greater number of intense storms. These intense storms will have more lift, and will thus tend to drop more precipitation--including snow, when we get areas of strong lift in the -15°C preferred snowflake formation region.
Figure 2. Storm reports received by NOAA's Storm Prediction Center from the October 26, 2010 superstorm.
2. Great Ohio Blizzard January 26, 1978 (958 mb/28.28")
3. Armistice Day Storm November 11, 1940 (967 mb/28.55")
4. November 10, 1998 storm (967 mb/ 28.55")
5. White Hurricane of November 7 - 9, 1913 (968 mb/28.60")
6. Edmund Fitzgerald Storm of November 10, 1975 (980 mb/28.95")
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#1. To: no gnu taxes, badeye, lucysmom, fred mertz, capitalist eric, sneakypete, brian s, meguro, skip intro (#0)
(Edited)
It's currently 75 with tornado watches all around the D.C. area, I must bury head in sand deeper.
Did you find Badeye's head by chance?
Go for it.
You'll have to pull it out of your ass first.
Getting tired of the bozoed calcon following me around on the 'net, wanting to discuss "tossing salad." Sorry, you sick rump-ranger. NOT interested.
Its Owe-bama's fault, he didn't sign the Kyoto treaty......(chuckle)
Obama's first all-by-his-lonesome budget, btw, calls for a $1.17 trillion deficit.
Being called the Weather Bomb. We're just getting started. "The storm front — also dubbed the “Chiclone” for the bizarreness of having a cyclone-like system over Chicago — drew its power from a sharp temperature contrast between record warmth in the southeastern United States and average cold in the north. Thus this record stormfront, though it exhibited hurricane-like power, is unlike actual hurricanes that derive their power directly from heat trapped in the ocean."
And when that Record SnowFall happens, Global Heating will be the culprit as well. LMFAO 8D 450 ppm here we come!!!!
You seem manly. Would you like to ride in my Hummer and we can combat pistol each other?
Global warming is a hokes. A bunch of years ago some magazine mentioned global cooling in one sentence in a paragraph around an earth day so thats what it was all about. That dog wont hunt.
Jimmy - that was God sighing. He's getting more PISSED as Satan controls more of this world, so who can blame Him? Consider the above freaky weather one brief reminder of who's Boss; That He created this ever changing, finite World, and can do so again in a flash. Sea shell fossils near the top of Mt. Everest and extinct dinosaurs have proven how quickly and decisively He works. We're living in the Last Days - As in, Cash-Your-Chips-In-NOW. Not even Exxon or the NWO or your Commie-Anarchist movement can change the script of the Future. Before it's too late, you should take seriously the Creator and His Plan. And that there is a second act, or yes, "Life" after this. To continue denying/ignoring it is like walking out half-way through a movie and missing the Greatest Ending. May your journey end well. Liberator
Worst is over here in mid-michigan and we weathered the storm quite well. A lot of potential tornado warnings and winds gusts topping out around 55mph but never lost power. It did do a great job sweeping my yard of the oak, hickory and maple leaves however. Stay safe.
Never swear "allegiance" to anything other than the 'right to change your mind'!
Bye, bozo.
Getting tired of the bozoed calcon following me around on the 'net, wanting to discuss "tossing salad." Sorry, you sick rump-ranger. NOT interested.
only if you believe warmer air holds more moisture than colder air. Physics can be a bitch sometimes.
Its Owe-bama's fault, he won't sign the Kyoto Treaty.
Obama's first all-by-his-lonesome budget, btw, calls for a $1.17 trillion deficit.
Your one of them deep thinkers arent you? Always thinking someone is in you deep.
Agreed.
Science is a bitch every day these zioFundy Top 50 000 wake up. Takes a lot of wealth and power to shut that thought process down. 8D
That was god pissing down your neck. 8D Your prodigy will curse you. And forget god except to cuss. # # Wonk Room » Global Boiling: Continental 'Weather Bomb' Hits ... Oct 27, 2010 ... Douglas found intensity of the “weather bomb” something “hard to ... for the bizarreness of having a cyclone-like system over Chicago — drew ... wonkroom.thinkprogress.or...10/27/chiclone-of-denial/ - Cached # Tim's Weather World: Tuesday's storm was "the bomb" - Chicago ... Oct 27, 2010 ... Tim's Weather World: Tuesday's storm was "the bomb" ... set to blow warmth out of town · Chicago in mild air as Great Lakes storm develops ... blog.chicagoweathercenter...s-weather-world-tuesdays-
my journey's just startin'. Thanx. 8D " I’m gonna take a wild shot here and say that understanding and liberation, come through self-discipline and self-denial, and that it’s nearly impossible for Americans to practice self-discipline. They cannot imagine why self-discipline, and a more ascetic life, becoming less dependent on the faceless machinery of algorithm driven virtual money, is necessarily liberating.
On January 3, 2011 the GOP assumes responsibility for deficit spending.
#2. To: go65 (#1)
It's currently 75 with tornado watches all around the D.C. area, I must bury head in sand deeper
#3. To: go65 (#1)
I must bury head in sand deeper.
#4. To: go65 (#1)
I must bury head in sand deeper.
#5. To: go65 (#1)
#6. To: go65 (#0)
#7. To: All (#6)
#8. To: Capitalist Eric (#4)
#9. To: go65 (#1)
#10. To: mcgowanjm (#0)
#11. To: go65 (#0)
#12. To: Boofer T. Bagger (#8)
#13. To: mcgowanjm (#7)
And when that Record SnowFall happens, Global Heating will be the culprit as well.
On January 3, 2011 the GOP assumes responsibility for deficit spending.
#14. To: go65 (#13)
#15. To: Liberator (#10)
#16. To: Capitalist Eric (#12)
#17. To: go65 (#13)
Physics can be a bitch sometimes.
#18. To: Liberator (#10)
#19. To: Liberator (#10)
May your journey end well.
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