Massive Atlantic Storm
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Massive Atlantic Storm
I saw this on another forum, and thought I'd post it here. Unbelieveable how strong this thing is getting
How low will it go? Massive Atlantic storm winding up
In the Northern Atlantic, an extratropical storm that brought up to 6" of snow to Maryland on Thursday is rapidly intensifying about 500 miles east of Newfoundland, Canada, and figures to become one of the most intense storms ever observed in the North Atlantic. This meteorological "bomb" was analyzed with a central pressure of 984 mb at 12Z (7 am EST) Friday morning by NOAA's Ocean Prediction Center; the GFS and ECMWF models both predict that the storm will deepen by 60 mb in 24 hours, reaching a central pressure of 924 - 928 mb by 7 am EST Saturday morning. This is the central pressure one commonly sees in Category 4 hurricanes, and is a very rare intensity for an extratropical storm to attain. Since extratropical storms do not form eyewalls, the winds of the massive Atlantic low are predicted to peak at 90 mph (Category 1 hurricane strength), with significant wave heights reaching 52 feet (16 meters.) Fortunately, the storm is expected to weaken dramatically before reaching any land areas, and will only be a concern to shipping. The intensification process will be aided by the strong contrast between the frigid Arctic air flowing off the coast of Canada from this week's cold blast, and the warm air lying over the warm waters of the Gulf Stream current. The ultimate strength of the storm will depend upon where the center tracks in relation to several warm eddies of the Gulf Stream along its path. According to wunderground's weather historian Christopher C. Burt's post on Super Extratropical Storms, the all-time record lowest pressure for a North Atlantic extratropical storm is 913 mb, set on January 11, 1993, near Scotland's Shetland Islands. The mighty 1993 storm broke apart the super oil tanker Braer on a rocky shoal in the Shetland Islands, causing a massive oil spill.
Other notable Atlantic extratropical storms, as catalogued by British weather historian, Stephen Burt:
920.2 mb (27.17”) measured by the ship Uyir while she sailed southeast of Greenland on December 15, 1986. The British Met. Office calculated that the central pressure of the storm, which was centered some distance southeast of the ship, was 916 mb (27.05”).
921.1 mb (27.20”) on Feb. 5, 1870 measured by the ship Neier at 49°N 26°W (another ship in the area measured 925.5 mb)
924 mb (27.28”) on Feb. 4, 1824 at Reykjavik, Iceland (the lowest on land measured pressure in the North Atlantic)
925.5 mb (27.33”) on Dec. 4, 1929 by the SS Westpool somewhere in the Atlantic (exact location unknown)
925.6 mb (27.33”) on Jan. 26, 1884 at Ochtertyre, Perthshire, U.K. (the lowest pressure recorded on land in the U.K.)
For comparison’s sake, the lowest pressure measured on land during an extra-tropical storm in the United States (aside from Alaska) was 952 mb 28.10” at Bridgehampton, New York (Long Island) on March 1 during, the Great Billy Sunday Snowstorm.
How low will it go? Massive Atlantic storm winding up
In the Northern Atlantic, an extratropical storm that brought up to 6" of snow to Maryland on Thursday is rapidly intensifying about 500 miles east of Newfoundland, Canada, and figures to become one of the most intense storms ever observed in the North Atlantic. This meteorological "bomb" was analyzed with a central pressure of 984 mb at 12Z (7 am EST) Friday morning by NOAA's Ocean Prediction Center; the GFS and ECMWF models both predict that the storm will deepen by 60 mb in 24 hours, reaching a central pressure of 924 - 928 mb by 7 am EST Saturday morning. This is the central pressure one commonly sees in Category 4 hurricanes, and is a very rare intensity for an extratropical storm to attain. Since extratropical storms do not form eyewalls, the winds of the massive Atlantic low are predicted to peak at 90 mph (Category 1 hurricane strength), with significant wave heights reaching 52 feet (16 meters.) Fortunately, the storm is expected to weaken dramatically before reaching any land areas, and will only be a concern to shipping. The intensification process will be aided by the strong contrast between the frigid Arctic air flowing off the coast of Canada from this week's cold blast, and the warm air lying over the warm waters of the Gulf Stream current. The ultimate strength of the storm will depend upon where the center tracks in relation to several warm eddies of the Gulf Stream along its path. According to wunderground's weather historian Christopher C. Burt's post on Super Extratropical Storms, the all-time record lowest pressure for a North Atlantic extratropical storm is 913 mb, set on January 11, 1993, near Scotland's Shetland Islands. The mighty 1993 storm broke apart the super oil tanker Braer on a rocky shoal in the Shetland Islands, causing a massive oil spill.
Other notable Atlantic extratropical storms, as catalogued by British weather historian, Stephen Burt:
920.2 mb (27.17”) measured by the ship Uyir while she sailed southeast of Greenland on December 15, 1986. The British Met. Office calculated that the central pressure of the storm, which was centered some distance southeast of the ship, was 916 mb (27.05”).
921.1 mb (27.20”) on Feb. 5, 1870 measured by the ship Neier at 49°N 26°W (another ship in the area measured 925.5 mb)
924 mb (27.28”) on Feb. 4, 1824 at Reykjavik, Iceland (the lowest on land measured pressure in the North Atlantic)
925.5 mb (27.33”) on Dec. 4, 1929 by the SS Westpool somewhere in the Atlantic (exact location unknown)
925.6 mb (27.33”) on Jan. 26, 1884 at Ochtertyre, Perthshire, U.K. (the lowest pressure recorded on land in the U.K.)
For comparison’s sake, the lowest pressure measured on land during an extra-tropical storm in the United States (aside from Alaska) was 952 mb 28.10” at Bridgehampton, New York (Long Island) on March 1 during, the Great Billy Sunday Snowstorm.
Jed33- Admin
- Posts : 930
Join date : 2011-12-09
Location : Morristown, TN
Re: Massive Atlantic Storm
Kinda grasping at straws here, but couldn't this storm help us out with some blocking down the road? Or, am I off here? I know everyone thought Sandy might bring about the blocking we needed, but we all know how that turned out.
Jed33- Admin
- Posts : 930
Join date : 2011-12-09
Location : Morristown, TN
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