سلام 
در این جا به بررسی آماری طوفان ها و شرایط جوی کم سابقه آمریکای شمالی در سال های گذشته می پردازیم
در این جا به بررسی آماری طوفان ها و شرایط جوی کم سابقه آمریکای شمالی در سال های گذشته می پردازیم
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پایان فعالیت بخشهای انجمن: امکان ایجاد موضوع یا نوشته جدید برای عموم کاربران غیرفعال شده است
بررسی توفان های آمریکای شمالی در سال های گذشته
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زمان : 25 ژانویه
Blizzard of '78: Enough Snow to Bury a House
Today marks the anniversary of the Blizzard of 1978, a storm that dumped up to 40 inches of snow across the Great Lakes and Ohio Valley region.
The snow, which began around 4:30 a.m. on Jan. 25 and lasted until the early morning hours of Jan. 27, severely impacted Ohio, Illinois, Indiana, Michigan and Kentucky.
The snowfall impaired the entire region, seriously limiting travel. The poor conditions resulted in the shutdown of the entire Ohio turnpike, a first ever for the heavily traveled interstate. The Indianapolis International Airport also shut down due to white-out conditions, stranding some 350 travelers for over three days.
The University of Notre Dame and University of Michigan closed for the first time in history.
Photo of collapsed house in Blizzard of '78 from
Those who did not venture out during the storm found themselves digging their cars and homes out from beneath massive snow drifts up to 20 feet.
AccuWeather.com Expert Senior Meteorologist Jim Andrews was in Beaver Creek, Ohio, during the Blizzard of 1978. It was one of the storms that solidified his interest in studying the weather.
"There had already been a string of three storms in the early and middle part of January. At one point, the peak snow depth was 2 feet, setting a record," said Andrews.
Before the blizzard hit, temperatures across Ohio and Michigan warmed up above freezing, so the storm began as a pouring rain late in the day.
"Within an hour, it went from raining to near-zero visibility in heavy snow," recalled Andrews.
"The rest of the night and through the next day, the wind was unbelievable. It howled and the whole house shook. I could barely see anything out the window, including houses right across the street."
"The highest snow drifts were over my head, probably 7 feet high," added Andrews. "Kids were climbing up the snow drifts after the storm ended."
Since the rain that fell at the onset of the storm was unable to penetrate the frozen ground, it seeped onto roadways and froze as thick as half a foot. It was very difficult to clear the thick ice, so travel remained tricky for several days after the blizzard.
The number of days Andrews and other students in the region were out of school was in the double digits.
Photo of the Forest Loudenslager Farm from the Marion County Historical Society.
Photo of massive snow drifts from the Marion County Historical Society
Blizzard of '78: Enough Snow to Bury a House
Today marks the anniversary of the Blizzard of 1978, a storm that dumped up to 40 inches of snow across the Great Lakes and Ohio Valley region.
The snow, which began around 4:30 a.m. on Jan. 25 and lasted until the early morning hours of Jan. 27, severely impacted Ohio, Illinois, Indiana, Michigan and Kentucky.
The snowfall impaired the entire region, seriously limiting travel. The poor conditions resulted in the shutdown of the entire Ohio turnpike, a first ever for the heavily traveled interstate. The Indianapolis International Airport also shut down due to white-out conditions, stranding some 350 travelers for over three days.
The University of Notre Dame and University of Michigan closed for the first time in history.
Photo of collapsed house in Blizzard of '78 from
Those who did not venture out during the storm found themselves digging their cars and homes out from beneath massive snow drifts up to 20 feet.
AccuWeather.com Expert Senior Meteorologist Jim Andrews was in Beaver Creek, Ohio, during the Blizzard of 1978. It was one of the storms that solidified his interest in studying the weather.
"There had already been a string of three storms in the early and middle part of January. At one point, the peak snow depth was 2 feet, setting a record," said Andrews.
Before the blizzard hit, temperatures across Ohio and Michigan warmed up above freezing, so the storm began as a pouring rain late in the day.
"Within an hour, it went from raining to near-zero visibility in heavy snow," recalled Andrews.
"The rest of the night and through the next day, the wind was unbelievable. It howled and the whole house shook. I could barely see anything out the window, including houses right across the street."
"The highest snow drifts were over my head, probably 7 feet high," added Andrews. "Kids were climbing up the snow drifts after the storm ended."
Since the rain that fell at the onset of the storm was unable to penetrate the frozen ground, it seeped onto roadways and froze as thick as half a foot. It was very difficult to clear the thick ice, so travel remained tricky for several days after the blizzard.
The number of days Andrews and other students in the region were out of school was in the double digits.
Photo of the Forest Loudenslager Farm from the Marion County Historical Society.
Photo of massive snow drifts from the Marion County Historical Society
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A Look Back at the Extreme Ice Storm of 2009
زمان : 27 ژانویه
"Reports of more than an inch of freezing rain abounded [during the storm] in Arkansas, Missouri, and Kentucky," Jesse Ferrell, AccuWeather meteorologist, wrote in his blog. "In fact, there was one claim of 3 inches."
According to the National Weather Service, the storm "caused Kentucky's largest power outage on record, with 609,000 homes and businesses without power across the state. Property damage was widespread, with the damage due to falling trees, large tree limbs and power lines weighed down by ice."
On the AccuWeather Facebook page, Kim Shook from Adair County, Okla., wrote that it "looked like a tornado had ripped through our little town trees power lines ect was down everywhere trees was split I believe we had received 7 inches in a 48 hr period ppl was outta power for over 2 weeks or more."
"We were out of power and water for 21 days here in West Ky.," AccuWeather Facebook fan Jennifer Brooking said.
"It was an amazing, unforgettable experience," AccuWeather Facebook fan Cary Willis from Louisville, Ky., said. "The power went out, and for hours and hours my wife and I lay in bed listening to crrrrack - crunch - thud as the limbs fell. This series of noises occurred literally every 30 to 60 seconds the entire night. But you couldn't see where the limbs were falling. In fact, you couldn't see anything in the dark, other than frequent flashes from (I guess) arcing electricity on the power lines, flashing like lightning, as well as exploding transformers."
"Trees still show scars of that event," AccuWeather Facebook fan James T Robinson Jr said. "Had out of town people ask 'when did tornado come thru?'"
Snowfall totals in inches:
Cleveland, Ohio 9.5
Mansfield, Ohio 13.0
Northeast, Pa. 14.0
Grand Valley, Pa. 16.0
Rochester, N.Y. 7.5
Cincinnati, Ohio 7.6
Windsor, Ohio 12.0
Erie, Pa. 10.8
Allentown, Pa. 3.8
Randolph, Vt. 15.5
Sunapee, N.H. 16.0
Chardon, Ohio 13.0
Buffalo, N.Y. 7.1
Portland, Maine 7.5
Philadelphia, Pa. 2.7
Photos from the storm:
مشاهده پیوست 103391
زمان : 27 ژانویه
"Reports of more than an inch of freezing rain abounded [during the storm] in Arkansas, Missouri, and Kentucky," Jesse Ferrell, AccuWeather meteorologist, wrote in his blog. "In fact, there was one claim of 3 inches."
According to the National Weather Service, the storm "caused Kentucky's largest power outage on record, with 609,000 homes and businesses without power across the state. Property damage was widespread, with the damage due to falling trees, large tree limbs and power lines weighed down by ice."
On the AccuWeather Facebook page, Kim Shook from Adair County, Okla., wrote that it "looked like a tornado had ripped through our little town trees power lines ect was down everywhere trees was split I believe we had received 7 inches in a 48 hr period ppl was outta power for over 2 weeks or more."
"We were out of power and water for 21 days here in West Ky.," AccuWeather Facebook fan Jennifer Brooking said.
"It was an amazing, unforgettable experience," AccuWeather Facebook fan Cary Willis from Louisville, Ky., said. "The power went out, and for hours and hours my wife and I lay in bed listening to crrrrack - crunch - thud as the limbs fell. This series of noises occurred literally every 30 to 60 seconds the entire night. But you couldn't see where the limbs were falling. In fact, you couldn't see anything in the dark, other than frequent flashes from (I guess) arcing electricity on the power lines, flashing like lightning, as well as exploding transformers."
"Trees still show scars of that event," AccuWeather Facebook fan James T Robinson Jr said. "Had out of town people ask 'when did tornado come thru?'"
Snowfall totals in inches:
Cleveland, Ohio 9.5
Mansfield, Ohio 13.0
Northeast, Pa. 14.0
Grand Valley, Pa. 16.0
Rochester, N.Y. 7.5
Cincinnati, Ohio 7.6
Windsor, Ohio 12.0
Erie, Pa. 10.8
Allentown, Pa. 3.8
Randolph, Vt. 15.5
Sunapee, N.H. 16.0
Chardon, Ohio 13.0
Buffalo, N.Y. 7.1
Portland, Maine 7.5
Philadelphia, Pa. 2.7
Photos from the storm:
مشاهده پیوست 103391
90-Year Anniversary of Deadly Knickerbocker Blizzard
زمان خبر : 28 ژانویه
oday marks the 90th anniversary of the deadly roof collapse of the Knickerbocker Theater in Washington, D.C., resulting from a massive blizzard that struck portions of the South and the mid-Atlantic.
The weight of heavy snow proved too much for the flat roof of the Knickerbocker Theater, which was built in 1917. Drifting of snow likely led to an uneven distribution of weight that added to the devastating roof collapse that killed 98 people and injured 133 others late on Jan. 28, 1922.
Photo of the Knickerbocker Theater following the collapse of the roof from NOAA's Historical Photo Collection. Click here to see more incredible photos of Washington, D.C., covered in snow from the Knickerbocker Blizzard.
Washington, D.C., was buried by 28.0 inches of snow from the blizzard, setting a record for the heaviest snow in 24 hours. This record still stands today.
Other snow amounts include 19.0 inches in Richmond, Va., and 33.0 inches in Rock Creek Park, which sits along the Washington, D.C.-Maryland border. Railroads between Philadelphia, Pa., and Washington, D.C., were buried beneath as much as 36.0 inches of snow.
Up to 16-foot-high snow drifts occurred with the ferocious winds accompanying the storm between Philadelphia and Washington, D.C
The storm shut down all forms of travel in the nation's capitol, forcing people to travel to work on foot in treacherous conditions. A 24-hour record snowfall in Baltimore, Md., brought
travel to a halt as well
زمان خبر : 28 ژانویه
oday marks the 90th anniversary of the deadly roof collapse of the Knickerbocker Theater in Washington, D.C., resulting from a massive blizzard that struck portions of the South and the mid-Atlantic.
The weight of heavy snow proved too much for the flat roof of the Knickerbocker Theater, which was built in 1917. Drifting of snow likely led to an uneven distribution of weight that added to the devastating roof collapse that killed 98 people and injured 133 others late on Jan. 28, 1922.
Photo of the Knickerbocker Theater following the collapse of the roof from NOAA's Historical Photo Collection. Click here to see more incredible photos of Washington, D.C., covered in snow from the Knickerbocker Blizzard.
Washington, D.C., was buried by 28.0 inches of snow from the blizzard, setting a record for the heaviest snow in 24 hours. This record still stands today.
Other snow amounts include 19.0 inches in Richmond, Va., and 33.0 inches in Rock Creek Park, which sits along the Washington, D.C.-Maryland border. Railroads between Philadelphia, Pa., and Washington, D.C., were buried beneath as much as 36.0 inches of snow.
Up to 16-foot-high snow drifts occurred with the ferocious winds accompanying the storm between Philadelphia and Washington, D.C
The storm shut down all forms of travel in the nation's capitol, forcing people to travel to work on foot in treacherous conditions. A 24-hour record snowfall in Baltimore, Md., brought
travel to a halt as well
Anniversary of the Groundhog Day Blizzard in Chicago
زمان خبر : 2 فوریه
It is the one-year anniversary of the Groundhog Day Blizzard in Chicago.
The storm brought the area from central Oklahoma to the lower Great Lakes and central New England between 1 and 2 feet of snow spanning Jan. 31 to Feb. 2, 2011, affecting over 100 million people along its path.
The area from northeastern Missouri to northeastern Illinois was hit the hardest.
Wind gusts to 60 mph in the Chicagoland area brought travel to a standstill with haunting images of stranded vehicles in waist-deep snowdrifts along the Lake Michigan shoreline. The storm resulted in power outages, school closings and halted mail service for a time
Hundreds of cars were stranded on Lake Shore Drive Wednesday, Feb. 2, 2011, in Chicago. A winter blizzard of historic proportions wobbled an otherwise snow-tough Chicago, stranding hundreds of drivers for up to 12 hours overnight on the city's showcase lakeshore thoroughfare and giving many city schoolchildren their first ever snow day. A year later, temperatures are in the mid-50s and flirting with record highs for this date. (AP Photo/Kiichiro Sato)
زمان خبر : 2 فوریه
It is the one-year anniversary of the Groundhog Day Blizzard in Chicago.
The storm brought the area from central Oklahoma to the lower Great Lakes and central New England between 1 and 2 feet of snow spanning Jan. 31 to Feb. 2, 2011, affecting over 100 million people along its path.
The area from northeastern Missouri to northeastern Illinois was hit the hardest.
Wind gusts to 60 mph in the Chicagoland area brought travel to a standstill with haunting images of stranded vehicles in waist-deep snowdrifts along the Lake Michigan shoreline. The storm resulted in power outages, school closings and halted mail service for a time
Hundreds of cars were stranded on Lake Shore Drive Wednesday, Feb. 2, 2011, in Chicago. A winter blizzard of historic proportions wobbled an otherwise snow-tough Chicago, stranding hundreds of drivers for up to 12 hours overnight on the city's showcase lakeshore thoroughfare and giving many city schoolchildren their first ever snow day. A year later, temperatures are in the mid-50s and flirting with record highs for this date. (AP Photo/Kiichiro Sato)