| 词条 | Great Blizzard of 1978 | ||||||||||||||||||||||||||||||||||||
| 释义 |
|name=Great Blizzard of 1978 |image location=Great Blizzard 1978-01-26 weather map.png |image name=Surface map on the morning of January 26, 1978. |stormtype=Extratropical cyclone Nor'easter Blizzard Winter storm |date formed=January 24, 1978 |date dissipated=January 29, 1978 |RSI=39.07 |maximum amount= {{convert|52|in|cm|abbr=on}} Muskegon, Michigan |lowest pressure= 955.5 |total damages (USD)= $73 Million |total fatalities= At least 71 fatalities |areas affected=Central United States, Eastern United States, Eastern Canada }} The Great Blizzard of 1978 was a historic winter storm that struck the Ohio Valley and Great Lakes regions from Wednesday, January 25 through Friday, January 27, 1978. It has been cited as having been the worst blizzard in US history.[1] The third lowest non-tropical atmospheric pressure ever recorded in the mainland United States occurred as the storm passed over Mount Clemens, Michigan, where the barometer fell to {{convert|956.0|mb|inHg|abbr=on}} on January 26.[2] Meteorological synopsisLate on Tuesday, January 24, 1978 surface maps revealed a moisture-laden Gulf Low developing over the Southern United States, while a separate and unrelated low-pressure system was present over the Upper Midwest. In about 24 hours, the merger of the subtropical jet stream (containing a wind max of 130 knots) and the polar jet stream (containing a wind max of 110 knots) would lead the low-pressure system to undergo explosive cyclogenesis as it moved rapidly northward during the evening of January 25 (record low pressures were logged across parts of the South and Mid-Atlantic).[2] To be classified as undergoing explosive cyclogenesis, a storm's central pressure must drop at least 24 millibars, or an average of 1 millibar per hour, over a 24-hour period; the Great Blizzard dropped by a remarkable 40 millibars in that span of time.[2] The storm initially began as rain, but quickly changed over to heavy snow during the pre-dawn hours (as arctic air deepened ahead of the storm) leading to frequent whiteouts and zero visibility during the day on Thursday, January 26. As the storm headed for Ohio, this resulted in a "storm of unprecedented magnitude," according to the National Weather Service, which categorized it as a rare severe blizzard, the most severe grade of winter storm. Particularly hard hit were the states of Illinois, Indiana, Kentucky, Michigan, Ohio, and southeastern Wisconsin where up to {{convert|40|in|cm|0}} of snow fell. Winds gusting up to {{convert|100|mph|km/h|0}} caused drifts that nearly buried some homes. Wind chill values reached {{convert|-60|F|C|0}} across much of Ohio where 51 of the total 70 storm-related deaths occurred.[3] Canada did not escape the wrath of the storm as blizzard conditions were common across southwestern Ontario. London, Ontario was paralyzed by {{convert|41|cm|in}} of snow and winds gusting to {{convert|128|km/h|mph}}. Barometric pressureOn Thursday, January 26, the third lowest atmospheric pressure recorded in the mainland United States, apart from a tropical system, occurred as the storm passed over Mount Clemens, Michigan. There the barometer fell to {{convert|956.0|mb|inHg|abbr=on}}.[2] Nearby Detroit, Michigan air pressure fell to {{convert|28.34|inHg|mbar}}. At around that same time, the absolute low pressure for this storm was measured at Sarnia, in Southwestern Ontario, Canada, where the barometer bottomed out at {{convert|955.5|mb|inHg|abbr=on}}.[2] Toronto pressure fell to 28.40 inches, breaking its old record by 0.17. The {{convert|956.0|mb|inHg|abbr=on}} barometric pressure measurement recorded in Mount Clemens, Michigan was the third lowest non-tropical atmospheric pressure recorded in the mainland United States[4] and the lowest in the Central United States.[5] The lowest confirmed pressure for a non-tropical system in the continental United States had been set by a January 1913 Atlantic coast storm.[5] The lowest central pressure for the 1978 blizzard was {{convert|955.5|mb|inHg|abbr=on}} measured in Sarnia, Ontario, Canada.[5] On rare occasions, extra-tropical cyclones with central pressures below 28 inches of mercury or about 95 kPa (950 mb) have been recorded in Wiscasset, Maine (27.9") and Newfoundland (27.76").[6] In addition, the blizzard is the highest-ranking winter storm on the Regional Snowfall Index, with a maximum value of 39.07, and one of only twenty-six storms to rank as a Category 5 on the scale.[7] ImpactThe blizzard was the worst in Ohio history; 51 people died as a result of the storm. Over 5,000 members of the Ohio National Guard were called in to make numerous rescues. Police asked citizens who had four-wheel-drive vehicles or snowmobiles to transport doctors to the hospital. From January 26 to 27, the entire Ohio Turnpike was shut down for the first time ever.[8] The total effect on transportation in Ohio was described by Major General James C. Clem of the Ohio National Guard as comparable to a nuclear attack.[9] Michigan Governor William Milliken declared a state of emergency and called out the Michigan National Guard to aid stranded motorists and road crews. The Michigan State Police pronounced Traverse City, Michigan "unofficially closed" and warned area residents to stay home. WTCM radio staffer Marty Spaulding, who closed the bayfront location station the previous night at 11 pm was called to re-open it the next day at 6am as regular staffers could not get there due to impassable roads. Upon arriving after a 45-minute walk in waist deep snow from his home a mere 10 city blocks distant, he had to dig down "a foot" to put the key in the front door.{{Citation needed|date=January 2011}} In Indiana on day two, just a half-hour after the arctic front blasted through, the Indianapolis International Airport was closed due to whiteout conditions. At 3 am, the blizzard produced peak winds of 55 mph. Temperatures dropped to zero that morning. Wind chills remained a bone-chilling 40 to 50 below zero nearly all day. The governor Otis R. (Doc) Bowen declared a snow emergency for the entire state the morning of the 26th. Snow drifts of 10 to 20 feet made travel virtually impossible, stranding an Amtrak train and thousands of vehicles and weary travelers. During the afternoon of the 26th, the Indiana State Police considered all Indiana roads closed.[10] Classes at The Ohio State University in Columbus, Ohio and the University of Notre Dame in Notre Dame, Indiana were canceled for the first time in the history of those universities; at Purdue University in West Lafayette, Indiana (where 25 inches of snow fell) for the third time in its history; and, at Miami University in Oxford, Ohio for the first time since the assassination of President John F. Kennedy. An inch or more, usually much more, of snow would remain on much of that particular area for nearly two months straight. The storm did much damage to the Ohio valley and to the Great Lakes. In Brampton, Ontario (northwest of Toronto) on Thursday afternoon, school buses could not get through deep snow to the then-rural campus of Sheridan College to take students home. Neither could any other vehicles, so some community college students had to stay on campus overnight. Muskegon, Michigan had the most extreme measurements up to 52 inches of snow in 4 days due to heavy lake effect snow squalls after the blizzard hit with a whopping 30 inches. QuotesC. R. Snider, National Weather Service Meteorologist in Ann Arbor, Michigan, said on January 30, 1978: {{cquote|The most extensive and very nearly the most severe blizzard in Michigan history raged January 26, 1978 and into part of Friday January 27. About 20 people died as a direct or indirect result of the storm, most due to heart attacks or traffic accidents. At least one person died of exposure in a stranded automobile. Many were hospitalized for exposure, mostly from homes that lost power and heat. About 100,000 cars were abandoned on Michigan highways, most of them in the southeast part of the state.[2] }}Snowfall totalsThe following table displays selected U.S. snowfall totals during January 25–29, 1978:[2]
References1. ^Comen, E. and Harrington, J. (2018). Worst Blizzards of All Time. [online] MSN. Available at: https://www.msn.com/en-us/weather/topstories/%E2%80%8Bworst-blizzards-of-all-time/ss-BBPsFIH?li=BBnb7Kz#image=26 [Accessed 27 Nov. 2018]. 2. ^1 2 3 {{cite web |url=http://www.wilx.com/blogs/weatherblog/82723922.html |title=The Great Blizzard of 1978 |last=Deedler |first=William R. |publisher=National Weather Service Detroit/Pontiac, MI |date=January 21, 2003|archiveurl=https://web.archive.org/web/20100213202643/http://www.wilx.com/blogs/weatherblog/82723922.html|archivedate=13 February 2010}} 3. ^{{cite web |url=http://www.bceo.org/78blizzardrev.html |title=Blizzard of '78: A Meteorological Review |publisher=Butler County Engineer's Office |date=August 13, 2008 }} 4. ^{{cite web|title=National Overview - October 2012. Historical Minimum Central Pressure Readings|url=https://www.ncdc.noaa.gov/sotc/national/2012/10/supplemental/page-8/|publisher=NOAA}} 5. ^1 2 3 4 5 {{cite web|title=Pressure Records: The October 26–27, 2010 Significant Extratropical Cyclone|url=http://www.weather.gov/dlh/101026_pressurerecords|publisher=National Weather Service}} 6. ^Extreme Weather, Ch. 8 (2007) 7. ^National Oceanic and Atmospheric Administration. Regional Snowfall Index (RSI). Retrieved on 2014-11-18. 8. ^{{cite web |title=1978 Ohio Statewide Blizzard |url=http://www.ohiohistorycentral.org/entry.php?rec=1649 |work=Ohio History Central }} 9. ^{{cite web |title=The 30 year anniversary of the Blizzard of '78 |url=http://www.erh.noaa.gov/cle/wx_events/Blizzard78/blizzard/blizzard78.html |publisher=National Weather Service: Eastern Region Headquarters|archiveurl=https://web.archive.org/web/20080517083624/http://www.erh.noaa.gov/cle/wx_events/Blizzard78/blizzard/blizzard78.html|archivedate=17 May 2008}} 10. ^{{cite web|work=NWS Indianapolis, Indiana Forecast Office|title=Blizzard of 1978|url=http://www.crh.noaa.gov/ind/?n=blizzardof78|archiveurl=https://web.archive.org/web/20081029110245/http://www.crh.noaa.gov/ind/?n=blizzardof78|archivedate=29 October 2008|}} External links{{Commons category|Cold Sunday}}
18 : Blizzards in the United States|1978 meteorology|1978 natural disasters|Natural disasters in Ohio|Natural disasters in Michigan|Natural disasters in Kentucky|Natural disasters in Indiana|Natural disasters in Illinois|Natural disasters in Wisconsin|Blizzards in Canada|Extratropical cyclones|January 1978 events|1978 in Ohio|1978 in Michigan|1978 in Indiana|1978 in Wisconsin|1978 in Illinois|1978 in Kentucky |
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