WX History: July 6th

1893: A violent tornado killed 71 persons on its forty-mile track across northwestern Iowa. Forty-nine persons were killed around Pomeroy, where eighty percent of the buildings were destroyed, with most leveled to the ground. Click HERE for more information.

1928: A seven-inch hailstone weighing 1.5 pounds fell in Potter Nebraska. With a circumference of 17 inches, this appeared to be the largest hailstone in the world at that time. Click HERE for more information from the Monthly Weather Review published in August 1928.

July 6, 1928 Potter NE Hailstones
The image above is courtesy of the Monthly Weather Review.

1963: A farmer was fatally injured near Waubay, in Day County South Dakota, when the barn was destroyed while he was inside. Winds of 110 mph were recorded at FAA in Watertown, South Dakota before the roof and wind instruments were blown away.

July 6, 1963, Watertown, SD WindJuly 6, 1963, Watertown, SD Wind · Mon, Jul 8, 1963 – Page 1 · Lead Daily Call (Lead, South Dakota) · Newspapers.com

1986: Thunderstorms during the mid-morning hours, and again during the evening, produced major flash flooding at Leavenworth, Kansas. The official rainfall total was 10.37 inches, but unofficial totals exceeded twelve inches. At nearby Kansas City, the rainfall total of 5.08 inches was a daily record for July.


WX History: July 5th

1936: Central South Dakota saw three, record high temperatures set on this day. Near Gann Valley, the temperature reached 120 degrees, setting the state record. The state record was tied on July 15, 2006, at 17 miles WSW of Fort Pierre. Other record highs on this date include 119 degrees in Kennebec and 116 degrees in Murdo. The record highs near Gann Valley, Kennebec, and Murdo are all-time highs for each location.

1925: A large hailstone weighing a half pound fell at Plumstead, just outside of London, England. This hailstone was the heaviest hailstone ever recorded in the United Kingdom.

1937: The temperature at Medicine Lake, Montana soared to 117 degrees to tie the state record. Glendive, Montana reached 117 degrees on July 20th, 1893.

1980: The “More Trees Down” started in western Iowa and tracked eastward affecting several states along its past before dissipating in eastern Virginia. Click HERE for more information from the Storm Prediction Center.


July 5, 1980 More Trees Down Derecho
The storm track image above is courtesy of the Storm Prediction Center.

2003: From the 5th through the 7th, New Zealand had its worst snowstorm in 50 years. The storm caused thousands of power outages to homes and businesses and stranding hundreds of motorists. In some areas, 12 inches of snow falls.

July 5, 2003 New Zealand Snow
The image above shows the blanket of snow from South Island, New Zealand’s worst blizzard in the past 50 years. The satellite image was taken on July 11, 2003, and is courtesy of NASA’s Earth Observatory.



WX History: July 4th

1776: Thomas Jefferson purchased a thermometer from a local merchant before signing the Declaration of Independence. According to his weather memorandum book, at 1 PM it was cloudy and 76 degrees. Click HERE for more information from WeatherWise.

July 4, 1776 Thomas Jefferson's Weather Obs

1911: Record temperatures are set in the northeastern United States as a deadly heat wave hits the area that would go on to kill 380 people. In Nashua, New Hampshire, the mercury peaked at 106 degrees. Other high-temperature records were set all over New England during an 11-day period. Click HERE for more information from the History.com

1969: During the afternoon of Friday, July 4, 1969, thunderstorms formed over southeast Lower Michigan (MI), several of which produced tornadoes, large hail, and high winds west and south of Detroit. As these storms moved southeastward during the early evening, they evolved into a strong derecho over extreme southeastern Michigan (MI) and Lake Erie (LE). The derecho then roared southeast across northern and eastern Ohio (OH) and Western Pennsylvania (PA) during the next few hours. The hourly positions of the gust front (associated with multiple bow echoes) are shown in Figure 1 (above). Winds gusted to 104 mph in Toledo (“T”), and reached 100 mph in the Cleveland (“C”) area. In towns and cities near Lake Erie, many people were outside, preparing to watch Independence Day fireworks. Also for the occasion, many small boat owners had anchored their craft just off the Lake Erie shore to watch the displays. As the derecho passed, untold thousands of trees were blown down, including 5000 in Toledo alone. Along the south side of Lake Erie, eight people were killed by falling trees, and over 100 boats were overturned, drowning at least three persons. A total of eighteen people were killed as a result of the derecho winds in Ohio. Some of the worst damage occurred in Lakewood, a suburb of Cleveland. The storm system continued to uproot trees, damage roofs and produce power outages as it moved into Pennsylvania, where high winds injured five people in Meadville (“M”). Click HERE for more information from the Storm Prediction Center.


July 4, 1969 Derecho
The area affected by the July 4, 1969 derecho (outlined in blue), with the approximate hourly positions of the leading edge of derecho winds (gust front) indicated by curved purple lines. Arrows indicate the direction of storm winds.



WX History: July 3rd

1873: A tornado in Hancock County, in far west central Illinois, destroyed several farms. From a distance, witnesses initially thought the tornado was smoke from a fire. A child was killed after being carried 500 yards; 10 other people were injured. Click HERE for more information from Illinois Genealogy Trails.

1975: Up to 3 inches of rain caused flash flooding throughout Las Vegas, NV. The main damage occurred to vehicles at Caesars Palace with approximately 700 damaged or destroyed with several cars found miles away. North Las Vegas was hardest hit with $3.5 million in damage. Two people drowned in the flood waters.

July 3, 1975 Las Vegas Flood
Above is the parking lot for Caesars Palace on July 4th, 1975.

2000:  There is a certain irony about one of the driest places getting the greatest rainfall, and yet that is what happened at usually rain-sparse Vanguard, Saskatchewan on July 3 when a carwash-like downpour flooded the community of 200 people, some 65 km southeast of Swift Current. As much as 375 mm (14.76”) of rain fell in eight hours, the greatest storm for that duration on the Canadian Prairies and one of the largest rainfall intensities ever recorded in Canada.

The spectacular thunderstorm produced more cloud-to-ground lightning strikes than that part of southern Saskatchewan would expect in two years. A year’s amount of rain left crops in the field drowning and rotting, and roads and rail lines under water. The force of the water crushed cars and farm implements swept away grain bins and soaked large bales. Stranded residents had to be rescued by boat, which rapidly became the carrier of choice on the main street in Vanguard. The flash flood also carried away herds of cattle and drowned dozens of deer and antelope. Some further irony, when millions of liters of contaminated water submerged the water-treatment plant and backed up into homes and businesses, officials had to ship in bottled water from Swift Current. Click HERE for more information from CBC.CA news.

WX History: July 2nd

1833: The following is from the “History and Description of New England” published in 1860: “On the 2nd of July, 1833, this town (Holland, Vermont) was visited by a violent tornado, which commenced on Salem Pond in Salem, and passed over this place in a northeasterly direction. It was from half to three-quarters of a mile wide and prostrated and scattered nearly all the trees, fences, and buildings in its course. It crossed the outlet of Norton Pond and passed into Canada, and its path could be traced through the forests nearly to Connecticut River.”

July 2, 1833 New Holland tornado

1843: An alligator reportedly fell from the sky onto Anson Street in Charleston, SC during a thunderstorm.

July 2, 1843 Alligator Report 2
Times-Picayune (New Orleans, Louisiana), Tuesday, July 11, 1843, page 2. Image courtesy of Newspapers.com

2001: In Michigan, frost and freezing temperatures were observed in some locations with Grant dropping to 29 degrees. Muskegon reported their coldest July temperature on record with 39 degrees. Other daily record lows included: Lansing: 38, Muskegon: 39, Flint: 40, Youngstown, Ohio: 40, and Grand Rapids, Michigan: 43 degrees.

WX History: July 1st

1861: Cherrapunji, Meghalaya, India measured 366 inches of rain during the month of July 1861. From August 1, 1860, to July 31, 1861, Cherrapunji received a record-breaking 1,041.75 inches of precipitation.

July 1, 1861 Cherrapunji Rainfall

1879: The Little Rock, Arkansas weather office opened. The first telegraphic report was sent at 700 am local time. 

1928: A powerful, estimated F4 tornado moved southeast from 6 miles west of Miller, South Dakota, destroying farms near the start of the path. All buildings were leveled to the ground, including two homes. A checkbook from one home was found 10 miles away.

1955: An estimated F2 tornado moved northeast near Bowdle, South Dakota. Two barns were destroyed. A small girl and a pony were reportedly carried a quarter mile without injury.

2002: San Antonio, Texas recorded 9.52 inches of rain on this day to set a new record for its greatest rainfall for the entire month of July. Click HERE for more information from the NWS Office in San Antonio.

July 1, 2002 San Antonio Flood

July 1, 2002 San Antonio Flood 2

WX History: June 30th

1792: The first recorded tornado in Canadian history struck the Niagara Peninsula between Foothill and Port Robinson, leveling some houses and uprooting trees between the communities.

1900: The combination of high winds and the presence of wooded fuel-filled cargo helped to spread fire on the Hoboken Docks in New Jersey. The fire began when cotton bales caught fire and spread to nearby volatile liquids. The fire killed at least 300 people and was seen in New York City. Click HERE for more information from the History.com. Click HERE for pictures.

1912: An estimated F4 tornado ripped through Regina, Saskatchewan, Canada on this day. The storm became the deadliest tornado in Canada’s history as it killed 28 people along a rare, 18.5-mile track from south to north.

June 30, 1912 Regina Tornado Damage
Damage to the YMCA building from the tornado. Click HERE for more pictures from Regina, The Early Years.

1999: Mount Baker, Washington closed out a record snowfall season both for the United States and the verifiable world record as the seasonal total from July 1, 1998, to June 30, 1999, finished with 1,140 inches.

2014: The ‘One-two Punch’ Midwest Derechos of June 30 to the early morning hours on July 1st. A pair of Derechos brought parts of the mid-Mississippi Valley and Great Lakes an unusual “one-two punch” on June 30 – July 1, 2014. The Derechos produced swaths of significant wind damage that extended intermittently from far eastern Nebraska through much of Iowa, northern Illinois, and southern Wisconsin into northern Indiana and southern Lower Michigan. The most continuous and intense damage occurred over eastern Iowa, northern Illinois, and northern Indiana, where some locations were affected by both derecho-producing storm systems. The Derechos also were responsible for widespread disruption of air travel through Chicago’s O’Hare International Airport. Click HERE for more information from the Storm Prediction Center. 

June 30, 2014 Derechos

WX History: June 28th

1788: The Battle of Monmouth in central New Jersey was fought in sweltering heat. The temperature was 96 degrees in the shade, and there were more casualties from the heat than from bullets.

1924: An estimated F4 tornado struck the towns of Sandusky and Lorain, killing 85 people and injuring over 300. This tornado is the deadliest ever in Ohio history.

Source: Caught by Surprise! The 1924 Sandusky-Lorain, Ohio Tornado – Tornadotalk.com

1975: Lightning strikes Lee Trevino and two other golfers at the Western Open golf tournament in Oak Brook, Illinois.

June 28, 1975 Lee Trevino Struck by Lightning

WX History: June 26th

1807: Lightning strikes a gunpowder factory in the small European country of Luxembourg, killing more than 300 people. The Luxembourg disaster may have been the most deadly lightning strike in history.

Source: History.com

1986: Hurricane Bonnie made landfall on the upper Texas coast. A wind gust to 98 mph occurred at Sea Rim State Park. Ace, Texas recorded a total of 13 inches of rain.

Hurricane Bonnie 1986



WX History: June 25th

1957: Hurricane Audrey moved northward, slowly strengthening until the 26th. At that time, a strong upper-level trough led to its acceleration and the hurricane deepened rapidly on its final approach to the Texas/Louisiana border. Audrey became the strongest hurricane on record for the month of June upon landfall, as it reached category four strength. Its acceleration was unanticipated, and despite hurricane warnings in place, 418 people perished in the storm, mainly across southwest Louisiana.

June 25, 1957 Hurricane Audrey
Radar image of Hurricane Audrey on June 27, 1957, shortly before landfall.

Source(s): History.com and Weather Underground.

1967: Three, F3 tornadoes crossed the Netherlands on this day. The first tornado touched down at 4:17 PM in Oostmalle. This storm destroyed the church and the center of the village. More than half of the 900 homes in the community were damaged with 135 completely gone. The second tornado touched down near Ulicoten and tracked northward through woodlands area. This storm killed two people at a camping site near Chaam, Netherlands. The third tornado destroyed 50 houses in Tricht, killing five and injuring 32 others.

June 25, 1967 Tornado in the Netherlands
Tornado near Deil, Netherlands.
June 25, 1967 Tornado in the Netherlands2
The village of Tricht following the F3 tornado.

Source: Koninklijk Nederlands Meteorologisch Instituut.