The "Ohio Fireworks" derecho-flash flood of July 4, 1969 is an example of what might be termed a concurrent derecho-flash flood convective system
JULY
4, 1977 DERECHO
"The Independence Day Derecho of 1977"
http://www.spc.noaa.gov/misc/AbtDerechos/casepages/jul41977page.htm
1977 Southern - Mid-Atlantic derecho
JULY 4-5, 1980 DERECHO
The "More Trees Down" Derecho
http://www.spc.noaa.gov/misc/AbtDerechos/casepages/jul4-51980page.htm
Western Wisconsin Derecho
JULY 15, 1980
http://en.wikipedia.org/wiki/Western_Wisconsin_Derecho
Illinois/Michigan Derecho July 16, 1980
JUNE 7, 1982 DERECHO
"The Kansas City Derecho of 1982"
http://www.spc.noaa.gov/misc/AbtDerechos/casepages/kc1982mem2003pwrpage.htm
JULY 19, 1983 DERECHO
"The I-94 Derecho"
http://www.spc.noaa.gov/misc/AbtDerechos/casepages/jul191983page.htm
In other cases, the progressive derecho and associated bow echo system begin relatively small, with a narrow path, but over time grow to exceed 250 miles in width. The line of thunderstorms of a progressive derecho often begins as a single bow echo that evolves into a short squall line, typically with more than one embedded bowing segment. Such development occurred with the "I-94 Derecho" over the north central United States on July 19, 1983..Some of the most intense summer derechos, especially those of the progressive type, occur on the fringes of major heat waves. Examples include the July 1983 "I-94" derecho in the upper Mississippi Valley
MAY 17, 1986 DERECHO
"The Texas Boaters' Derecho"
http://www.spc.noaa.gov/misc/AbtDerechos/casepages/may171986page.htm
JULY 28-29 1986 DERECHO
"The Supercell Transition Derecho"
http://www.spc.noaa.gov/misc/AbtDerechos/casepages/jul28-291986page.htm
MAY 4-5, 1989 DERECHO
"The Texas Derecho of 1989"
http://www.spc.noaa.gov/misc/AbtDerechos/casepages/may41989page.htm
NOVEMBER 20, 1989 DERECHO
"The Mid-Atlantic Low Dewpoint Derecho of November 20, 1989"
http://www.spc.noaa.gov/misc/AbtDerechos/casepages/nov201989page.htm
APRIL 9, 1991 DERECHO
"The West Virginia Derecho of 1991"
http://www.spc.noaa.gov/misc/AbtDerechos/casepages/apr91991page.htm
JULY 7-8, 1991 DERECHO
"The Southern Great Lakes Derecho of 1991"
http://www.spc.noaa.gov/misc/AbtDerechos/casepages/jul7-81991page.htm
Pakwash Forest Blowdown..
A progressive derecho that crossed the Pakwash forest of northwest Ontario on July 18, 1991
http://www.spc.noaa.gov/misc/AbtDerechos/derechofacts.htm#bowecho
MARCH 12-13, 1993 DERECHO
"The 'Storm of the Century' or 'Superstorm' Derecho"
http://www.spc.noaa.gov/misc/AbtDerechos/casepages/mar12-131993page.htm
An example of a serial derecho with a very extensive squall line and embedded smaller scale bow echoes is the one that affected Florida, Cuba, and adjacent parts of the Gulf of Mexico, the Caribbean Sea, and the Atlantic Ocean during the early stages of the "Storm of the Century" on March 12-13, 1993.
July 1993 Central Plains derecho July 8–9, 1993
MAY 31, 1994 DERECHO
"The Utah / Wyoming Derecho of May 31, 1994"
http://www.spc.noaa.gov/misc/AbtDerechos/casepages/may311994page.htm
a derecho-producing convective system appears below. This particular event (May 31, 1994) occurred in a relatively dry environment over Utah and western Wyoming..Low dewpoint derechos most often occur between late fall and early spring in association with strong low pressure systems, and are a form of serial derecho. The May 31, 1994 Utah-Wyoming derecho shown in the animated satellite loop in Derecho Development is an example of a low dewpoint event. This system produced a 105 mph wind gust at Provo, Utah, where sixteen people were injured, and tore off part of the roof of the Saltair Pavilion on the Great Salt Lake. A wind gust of 140 mph was measured on Camel Back Mountain in nearby Dugway Proving Ground. The derecho occurred in an environment where average surface dewpoints were around 45 °F
Some of the most intense summer derechos, especially those of the progressive type, occur on the fringes of major heat waves. Examples include the Mid-July 1995 derechos in New York and Canada..
http://www.spc.noaa.gov/misc/AbtDerechos/casepages/jul1995derechopage.htm
JULY 12-13, 1995 DERECHO
"The Right Turn Derecho"
http://www.spc.noaa.gov/misc/AbtDerechos/casepages/jul1995derechopage.htm#2nd1995
JULY 14-15, 1995 DERECHO
"The Ontario / Adirondacks Derecho"
http://www.spc.noaa.gov/misc/AbtDerechos/casepages/jul1995derechopage.htm#4th1995
BOTH ABOVE ( JULY 11-15 ) affected 15 U.S. States from Montana to New England & Ontario, Canada
MAY 30-31, 1998 DERECHO
"The Southern Great Lakes Derecho of 1998"
http://www.spc.noaa.gov/misc/AbtDerechos/casepages/may30-311998page.htm
The derecho that tore through Wisconsin and Lower Michigan on May 31, 1998, produced a 128 mph wind gust in eastern Wisconsin.
Hybrid derechos. This one was attendant to a strong, migrating low pressure system..
JUNE 29, 1998 DERECHO
"The Corn Belt Derecho of June 1998"
http://www.spc.noaa.gov/misc/AbtDerechos/casepages/jun291998page.htm
SEPTEMBER 7, 1998 DERECHOS
"The Labor Day Derechos of 1998" aka New York State Labor Day Derechos...
http://www.spc.noaa.gov/misc/AbtDerechos/casepages/sep71998page.htm
NY, PA, VT, MA, NH
SEPTEMBER 7, 1998 DERECHOS
"The Labor Day Derechos of 1998"
http://www.spc.noaa.gov/misc/AbtDerechos/casepages/sep71998page.htm
MI, OH, WV, PA, NJ, NY, CT
JULY 4-5, 1999 DERECHO
"The Boundary Waters - Canadian Derecho"
http://www.spc.noaa.gov/misc/AbtDerechos/casepages/jul4-51999page.htm
The second type of derecho is called a progressive derecho. These are associated with a relatively short line of thunderstorms (typically from 40 miles to 250 miles in length) that may at times take the shape of a single bow echo, particularly in the early stages of development. In some cases, the width of a progressive derecho and its associated bow echo system remain relatively narrow even though they may travel for hundreds of miles.
MAY 27-28, 2001 DERECHO
"The 'People Chaser' Derecho"
a "Southward burst" derecho affected parts of the southern Great Plains from southwest Kansas into central Texas
http://www.spc.noaa.gov/misc/AbtDerechos/casepages/may27-282001page.htm
2001 Central Wisconsin derecho June 11, 2001
October 2001 Mississippi-Ohio Valleys derecho October 24, 2001
Memphis Summer Storm of 2003 July 22, 2003
http://en.wikipedia.org/wiki/Memphis_Summer_Storm_of_2003
Michigan, Ohio, Pennsylvania May 21, 2004
Mississippi - Tennessee Valley Derecho of 2004 July 13, 2004
DERECHO AND OTHER WIND EVENTS
OVER THE CONTINENTAL UNITED STATES DURING 2004 AND 2005
http://www.spc.noaa.gov/misc/AbtDerechos/annualevents.htm
Southern U.S. March Derecho March 9, 2006
http://en.wikipedia.org/wiki/March_2006_Tornado_Outbreak_Sequence
April 2, 2006 Tornado Outbreak April 2, 2006
http://en.wikipedia.org/wiki/April_2,_2006_Tornado_Outbreak
Heat wave of 2006 derecho series July 17–19 and 21, 2006
http://en.wikipedia.org/wiki/Heat_wave_of_2006_derecho_series
June 4, 2008 derecho June 4, 2008
June 2008 Omaha derecho June 28, 2008
The Iowa Summer Derecho of 2008 July 21, 2008
Chicago Derecho August 4, 2008
http://en.wikipedia.org/wiki/Chicago_Derecho#August_4.E2.80.935
May 2009 derecho series May 3–8, 2009
http://en.wikipedia.org/wiki/May_2009_derecho_series
The "Super Derecho" of May 8, 2009
http://www.spc.noaa.gov/misc/AbtDerechos/casepages/may82009page.htm
Southern Midwest derecho..
This weather phenomena traveled more than a thousand miles in 24 hours from southeastern Kansas to the southern spine of the Appalachian Mountains.
Destruction from the May 2009 derecho totaled millions of dollars with numerous injuries and several deaths reported.
Forty-five tornadoes were sighted
June 2009 Mid-South Derecho June 12, 2009
June 2009 Southern KY derecho June 16, 2009
http://en.wikipedia.org/wiki/June_2009_Southern_KY_derecho
June 2009 Midwest Derecho series June 17–19, 2009
June 18 Midwest derechos June 18, 2010
http://en.wikipedia.org/wiki/Mid-June_2010_tornado_outbreak#June_18_Midwest_derechos
Late June 2010 Hybrid Derecho June 23, 2010
October 2010 North American storm complex October 23–28, 2010
http://en.wikipedia.org/wiki/October_2010_North_American_storm_complex
APRIL 19-20, 2011 DERECHO
"The Ozarks / Ohio Valley Derecho of April 2011"
http://www.spc.noaa.gov/misc/AbtDerechos/casepages/apr202011page.htm
June 2011 Northwest Indiana derecho June 4, 2011
JULY 10-11, 2011 DERECHO
"The Cross Country Derecho of July 2011"
Iowa-Illinois-Michigan-Ohio derecho
http://www.spc.noaa.gov/misc/AbtDerechos/casepages/jul112011page.htm#
http://en.wikipedia.org/wiki/July_2011_Iowa-Illinois-Michigan-Ohio_derecho
The derecho that struck Chicago, Illinois on 11 July 2011 left more than 860,000 people without electricity
June 2012 Lower Mississippi Valley derecho June 11, 2012
JUNE 29, 2012 DERECHO
"The Ohio Valley / Mid-Atlantic Derecho of June 2012"
http://www.spc.noaa.gov/misc/AbtDerechos/casepages/jun292012page.htm
Derechos typically strike the lower Midwest states once every year, according to the SPC. The occurrence of derechos, however, are quite rare across the mid-Atlantic, south of Philadelphia. On average, this region endures a derecho once every four years.
A "super derecho" of violent thunderstorms left a more than 700-mile trail of destruction across the Midwest and mid-Atlantic on Friday, cutting power to millions and killing thirteen people.
More than 600 damaging wind reports were received by NOAA's Storm Prediction Center (SPC) as the derecho took roughly 12 hours to race from northern Indiana to the southern mid-Atlantic coast.
Winds gusted to 91 mph (equal to that of a category 1 hurricane) at the Fort Wayne International Airport, Ind., Friday afternoon.
As the derecho maintained its violent nature, an 81 mph gust was then measured at Tuckerton, on the southern New Jersey coast, early Saturday morning
Summer heat wave of 2012 derecho series
June 29, 2012-August 2012
http://en.wikipedia.org/wiki/Summer_heat_wave_of_2012_derecho_series
June 2012 North American derecho June 29–30, 2012
Late July 2012 North American derecho July 26, 2012
http://en.wikipedia.org/wiki/Late_July_2012_North_American_derecho#July_26