Every tornado, hurricane, flood, blizzard, heat wave, record, earthquake, eruption, tsunami, wildfire and geomagnetic storm on record for December 19, in any year, each linked to its full record.
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Every event with a place, colored by kind. Tap one to open its record.
By deaths, damage and strength together, across every archive.
Winter storms and snow
Snowstorm of December 19, 1929 was ranked category 5, Extreme, on NOAA’s Regional Snowfall Index, strongest in the South. It lasted from December 19, 1929 to December 24, 1929.
Earthquakes
A magnitude 5.9 earthquake struck Bab-Tangol, Iran. It killed 584 people, injured 1,000 and did severe (about $5 to $25 million) damage.
Earthquakes
An earthquake struck Dughabad,khorasan, Iran. It killed 800 people and did severe (about $5 to $25 million) damage.
Earthquakes
An earthquake struck San Vicente, El Salvador. It killed 400 people.
Earthquakes
A magnitude 7.4 earthquake struck Cotabato,n Coast of Illana Bay, Philippines. With the tsunami it caused, it killed 97 people and injured 102.
Tsunamis
A tsunami caused by a magnitude 7.4 earthquake struck Celebes Sea, Philippines. It killed 97 people and injured 102.
Tornadoes
An F4 tornado touched down in Columbia, Ouachita counties, Arkansas and tracked 17.7 miles, 10 yards wide at its widest, killing 2 and injuring 9.
Earthquakes
A magnitude 6 earthquake struck N Central, Tehran, Iran. It killed 26 people and did $5 million in damage.
Floods
A large Pacific plume of moisture ahead of an advancing trough of low pressure brought heavy rain and periods of serious flooding for nearly a week. The plume of moisture responsible was a form of an Atmospheric River.
Hurricanes and tropical storms
Hurricane Russ reached its peak of 125 kt (145 mph) with a central pressure of 920 mb, a category 4 storm.
Hurricanes and tropical storms
Hurricane Bondo reached its peak of 135 kt (155 mph) with a central pressure of 904 mb, a category 4 storm.
Hurricanes and tropical storms
Hurricane Kenanga reached its peak of 115 kt (130 mph) with a central pressure of 945 mb, a category 4 storm.
18 on December 19, oldest first.
An F4 tornado touched down in Columbia, Ouachita counties, Arkansas and tracked 17.7 miles, 10 yards wide at its widest, killing 2 and injuring 9.
An F3 tornado touched down in Jefferson County, Arkansas and tracked 3.8 miles, 100 yards wide at its widest.
An F3 tornado touched down in Pike County, Alabama and tracked 0.5 miles, 100 yards wide at its widest, injuring 1.
An F3 tornado touched down in Pike County, Alabama and tracked 11.3 miles, 300 yards wide at its widest.
An F2 tornado touched down in Gadsden County, Florida and tracked 0.3 miles, 50 yards wide at its widest, killing 1 and injuring 1.
A tornado destroyed a mobile home carrying the two residents over 125 yards. The men were found four hours later, one man (50) was dead, the other, his brother, (49) was severely injured. Items from the dwelling were found three miles away. M50MH
Winds from a severe thunderstorm blew a tree onto a house, resulting in damage.
Numerous thunderstorms developed in advance of a strong cold front on the evening of the 19th and continued into the wee hours of the 20th. Some of the storms became severe, producing damaging winds. There was one tornado as well.
A line of severe thunderstorms developed over eastern Oklahoma during the early evening hours of the 19th as a cold front moved into the region from the west.
A warm front lifted north across East Texas and North Louisiana to along the Arkansas/Louisiana border during the afternoon hours of December 19th, focusing showers a large area of rain north of this boundary over portions of extreme Northeast Texas, Southeast Oklahoma, and…
4 on December 19, oldest first.
Hurricane Russ reached its peak of 125 kt (145 mph) with a central pressure of 920 mb, a category 4 storm.
A winter storm brought heavy snow to the mountains with 10 to 14 inches falling at elevations above 6000 feet and 2 to 8 inches falling at elevations between 4000 and 6000 feet. Fog and snow reduced visibility to less than 100 feet in the Cajon Pass.
Hurricane Bondo reached its peak of 135 kt (155 mph) with a central pressure of 904 mb, a category 4 storm.
Hurricane Kenanga reached its peak of 115 kt (130 mph) with a central pressure of 945 mb, a category 4 storm.
9 on December 19, oldest first.
Rain slickened roads led to a vehicle sliding into the deepened Merced River near El Portal. One fatality resulted from drowning as the river was unusually high following a "wet" month in the county.
Water was reported in basements in the 1500 block of Mercer Avenue in Louisville. In the Lyndon area, a car was trapped in high water at an intersection. A woman and two children were rescued. Chenoweth Run Creek near Jeffersontown was out of its banks.
Several roads and streets were flooded.
Flood water reached up to some homes. Several roads were flooded.
A strong coastal low pressure area produced moderate to severe coastal flooding across much of eastern and southeast Virginia and the Virginia Eastern Shore.
In addition to the heavy snow, the nor'easter produced strong gusty northeast winds along the Delaware coast from the early morning into the early evening of the 19th.
A large Pacific plume of moisture ahead of an advancing trough of low pressure brought heavy rain and periods of serious flooding for nearly a week. The plume of moisture responsible was a form of an Atmospheric River.
A series of storms fueled by a tropical moisture tap pounded the Mojave Desert and southern Great Basin for several days. Extremely heavy snow and widespread flooding resulted.
Heavy showers fell over the windward side of the Big Island near Papaaloa, just to the southeast of Laupahoehoe. A motorist, a tourist from California, apparently tried to cross the swollen Pahale Stream and died after being swept away by the rapid current.
22 on December 19, oldest first.
Wind damage was reported in Clio to the roofs of five houses along with damage to several peanut trailers. One house was reportedly blown down.
Strong surface gradients set up gusty Santa Ana winds below selected passes and canyons across Southern California. In Riverside, a 60-foot tree seriously damaged a home and destroyed a car when it was blown over in the high wind.
High winds, which gusted to 65 mph, blew down trees and power lines in the cascade foothills, damaging vehicles, blocking roads and cutting power to 13,000 homes. Over a dozen trees were downed and one fell on top of an empty police vehicle, damaging it.
Numerous trees, power lines, utility poles, and billboard signs were blown down. A seven year old boy was injured by flying debris and a woman was trapped in a car when a utility pole was blown down and live wires fell on the vehicle.
A strong cold front moved through the northern Cascades and Waterville Plateau area on the 19th of December. This front brought high winds with estimated gusts to 60 mph in several locations.
The surface pressure difference (gradient) between a high pressure system moving east from the Great Lakes and an intensifying low pressure system that developed along the Virginia coastal waters produced strong northwest winds overnight on the 19th into the afternoon of the…
Strong southwest winds in advance of a cold front were sustained from 30 to 35 mph for a few hours. Peak wind gusts were from 40 to 50 mph. Two strips of siding were blown off a house near Paducah, where winds gusted to 48 mph.
Strong southwest winds in advance of a cold front were sustained from 30 to 35 mph for a few hours. Peak wind gusts were from 40 to 50 mph. In Harrisburg, wind gusts estimated near 50 mph blew vinyl shutters off a house. Small tree limbs were blown down.
Strong south to southwest winds occurred during the day of the 9th preceding a cold frontal passage early in the evening across the southern half of New Jersey.
A very unstable airmass developed across the Four State region during the afternoon and evening hours of December 12th. A potent upper level storm system moved out of the Inter Mountain West and into the Southern Plains during the afternoon as well.
A very unstable airmass developed across the Four State region during the afternoon and evening hours of December 12th. A potent upper level storm system moved out of the Inter Mountain West and into the Southern Plains during the afternoon as well.
A round of severe weather occurred across Southeast Texas as a cold front moved through the region.
Areas of southeast South Dakota were on the southern edge of a band of snowfall which brushed areas north of Interstate 90, and was heaviest from 3 to 6 inches closer to Highway 14.
Upper-air analysis at 12 UTC on the 19th showed troughing over the eastern CONUS and ridging over the western CONUS. In the northern Great Plains, a shortwave trough embedded in northwesterly flow aloft dove southeast over the course of the day.
A narrow line of showers and thunderstorm developed along a cold front resulting in several reports of severe winds.
A strong, reinforcing cold front crossed through West Virginia very late on December 18th into the early morning hours of the 19th, and caused an impactful wind event across the area.
A strong cold front advanced through the region during the early morning hours of the 19 December. A large area of light to moderate rain moved into central North Carolina during the evening of the 18 December. This rain moved out during the overnight hours.
A strong area of low pressure stationed across northern Ontario allowed for a potent cold front to cross central Pennsylvania during the early morning hours of December 19, 2025.
Strong surface low in Canada between James Bay and the Great Lakes traversed Ontario and Quebec provinces on December 19th.
Strong surface low in Canada between James Bay and the Great Lakes traversed Ontario and Quebec provinces on December 19th.
69 on December 19, oldest first.
Snowstorm of December 19, 1920 was ranked category 2, Significant, on NOAA’s Regional Snowfall Index, strongest in the Northern Rockies and Plains. It lasted from December 19, 1920 to December 24, 1920.
Snowstorm of December 19, 1929 was ranked category 5, Extreme, on NOAA’s Regional Snowfall Index, strongest in the South. It lasted from December 19, 1929 to December 24, 1929.
Near blizzard conditions occurred across northern Oklahoma on December 19 and 20th, 1973. Snow depths up to six inches were whipped by 30 to 50 mph winds, causing numerous road closures. Many traffic accidents resulted, and several motorists became stranded in the drifts.
From the National Weather Service in Norman, Oklahoma.
An area of low pressure developed along the Mid-Atlantic coast Thursday morning, December 19 and moved north, passing through eastern Maine early Friday morning, December 20.In general, this storm resulted in 3 to 6 inches of snow across central and northern Vermont.
Arctic air crossing the warm waters of Lake Erie produced a narrow intense band of lake effect snow. Snowfall rates of two to three inches an hour were common in the band. Parts of the New York State Thruway were closed for more than 12 hours.
An area of low pressure developed along the Mid-Atlantic coast Thursday morning, December 19 and moved north, passing through eastern Maine early Friday morning, December 20.In general, this storm resulted in between 3 and 6 inches of snow across Clinton and Essex Counties of…
Snowfall combined with bitterly cold temperatures in Western Nevada, caused icy roadways that produced numerous automobile accidents. As many as 80-90 accidents were reported just in the Reno-Sparks urban area.
The leading edge of an arctic airmass brought heavy snow to much of Northern Utah late on the 19th into the 20th, with the heavy snow pushing into Southern Utah on the 21st. For awhile on the 20th, I-70 from Salina to Green River was closed due to heavy snow.
Icy roads caused accidents across Kimball County. On the 19th, a motorinst lost control of his pickup and rolled it, 2 miles north of Kimball. There were no injuries, but the vehicle was totaled.
A vigorous upper level storm system raced from the Northern Rockies into the Midwest bringing snow to the region. Accumulations ranged from 1 to 3 inches. Locally higher amounts of 4 inches fell in a narrow band over portions of Iowa, Johnson and Louisa counties.
This winter event followed rapidly on the heels of the December 17 snow event. Arctic air was firmly entrenched across north and central Georgia following the frontal passage of December 17.
Low pressure moved across the region on the 19th and produced periods of light to moderate snow between 4 AM and 8 PM. Snowfall totals ranged from 2 to 6 inches with the highest amounts falling along the Blue Ridge Mountains and across the Shenandoah Valley.
A storm system developed along the mid atlantic coast Tuesday night, December 19th and moved northeast to Cape Cod Wednesday morning, December 20th. Snow developed across the area Tuesday evening, and became steady overnight before tapering off Wednesday morning.
A storm system developed along the mid atlantic coast Tuesday night, December 19th and moved northeast to Cape Cod Wednesday morning, December 20th. Snow fell across the area Tuesday evening into Wednesday morning. Amounts were generally between 3 and 6 inches.
A storm system developed along the mid atlantic coast Tuesday night, December 19th and moved northeast to Cape Cod Wednesday morning, December 20th. Snow fell across the area Tuesday night into early Wednesday morning. Amounts were generally between 3 and 5 inches.
Lake effect snow showers dumped up to 7 inches of snow on Geauga County.
Lake effect snow showers dumped up to 9 inches of snow on inland portions of Erie County.
Snow depth - 8 inches
Another round of lake effect snow began in the early morning of the 19th. Farming (Fayette Co) reported 6" of snow by 10 PM on 19th. Sharon had 4 inches by 10 PM on 19th, and 6" by midnight.
The largest lake effect snowstorm in several years hit portions of northwestern Indiana. Winds off Lake Michigan started out of the northwest, with the band of snow extending into northern parts of St.
A strong cold front moved east across northern Ohio early on December 19th. Light rain falling in advance of this front quickly changed to snow during the early morning hours as colder air filtered into the region.
One half inch to as much as three inches of snow fell across central and eastern Virginia. The snow produced slippery roadways, which resulted in several accidents.
The combination of a weak high pressure system over the region and low level moisture left in place by a departing low pressure system to the east caused dense fog to form across central and southern New Jersey after midnight EST on the 19th.
Very cold air blowing across Lake Erie caused lake effect snow showers to develop during the early morning hours of the 19th. The heaviest snow fell just before daybreak and also around midday. 6 to 8 inches of snow was reported across northern Geauga County.
Very cold air blowing across Lake Erie caused lake effect snow showers to develop during the early morning hours of the 19th. The heaviest snow fell just before daybreak and also around midday. 6 to 10 inches of snow was reported across much of inland Erie County.
Snowstorm of December 19, 2006 was ranked category 1, Notable, on NOAA’s Regional Snowfall Index, strongest in the Northern Rockies and Plains. It lasted from December 19, 2006 to December 24, 2006.
A major winter storm spun its way onto the plains. With mild temperatures in place at the start of the storm, precipitation began as rain, and pretty much stayed as rain.
A strong upper low moved from southern California into eastern New Mexico and southeastern Colorado. This system produced snow...sleet and freezing rain across the Texas panhandle.
A slow-moving low pressure system produced significant snow and ice accumulations across eastern Colorado, southwest Nebraska and western Kansas.
A strong upper low moved from southern California into eastern New Mexico and southeastern Colorado. This system produced snow...sleet and freezing rain across the Oklahoma panhandle.
A powerful winter storm moved out of the southern rockies and moved slowly across Nebraska. Due to the slow movement of the system, significant accumulations of freezing rain, sleet and snow occurred.
Widespread freezing drizzle and freezing rain developed over the extreme southwestern Texas Panhandle and the northwestern South Plains during the early morning hours of the 19th. By mid morning, numerous accidents had been reported on area roadways.
The next in a series of storms moved into the Western Gulf at 944 MB on Tuesday, Dec 19th. The surface pressure gradients with this storm were again extreme as early as midday Tue. The strong fronts moved onto the Eastern Gulf Coast Tuesday night.
A potent Pacific storm and associated cold front brought strong winds to the coast and heavy snow to the Cascades. Behind the front in the unstable airmass, snow levels dropped and cold air hung over the forecast area.
An upper level disturbance and weak area of low pressure moved east from the Great Lakes and then across Vermont during the night of December 19th into the morning hours of the 20th.
A winter storm affected most of Eastern Pennsylvania on the 19th. Mainly ice fell in the Philadelphia northern suburbs, a wintry mix fell in Berks County and the Lehigh Valley and mainly snow fell in the Poconos.
A low pressure system tracked through central Ohio on the 19th. The low pressure remained just south of the region, but warmer air aloft moved over the area allowing for mainly freezing rain across the region.
A winter storm affected most of the northern half of New Jersey from the morning of the 19th into the early part of the 20th.
Low pressure moved out of the central Plains and moved across Pennsylvania. The low brought an eight to twelve inch blanket of snow to the entire region on the 19th.
A low pressure system tracked from the southwestern U.S. Thursday morning December 18th, to southern Illinois by Friday morning December 19th, to a position well off the New England coast by Saturday morning December 20th.
An intensifying coastal low spread heavy snow across southern New England. Snow began in the early afternoon across Connecticut and southwestern Massachusetts, spreading quickly across Massachusetts, Rhode Island, and southern New Hampshire.
An area of low pressure moved from Kansas City, Missouri to north of Pittsburgh, Pennsylvania. Snow spread into southwest lower Michigan out ahead of the low, starting in South Haven at around 2:00 a.m. on the nineteenth.
On the morning of December 19th, low pressure was located across the mid-Mississippi River Valley. This low moved across the Ohio River Valley during the afternoon of the 19th and then offshore south of New England during the evening.
A low pressure system tracked through central Ohio and into western Pennsylvania on the 19th. The low pressure remained just south of the region, but warmer air aloft moved over the area allowing for mainly freezing rain across the region.
On the morning of December 19th, low pressure was located across the mid-Mississippi River Valley. This low moved across the Ohio River Valley during the afternoon of the 19th and then offshore south of New England during the evening.
On the morning of December 19th, low pressure was located across the mid-Mississippi River Valley. This low moved across the Ohio River Valley during the afternoon of the 19th and then offshore south of New England during the evening.
A major winter storm affected central and southeast Pennsylvania on the 19th and 20th. A lighter accumulating snow affected the Poconos.
A fast-moving upper-level disturbance tracked through central Illinois on December 19, 2009, bringing a period of light snow to the area. Total snowfall was generally around 1 inch...with higher amounts northwest of the Illinois River.
A major winter storm dropped heavy snow across all of New Jersey except for Sussex County. The heaviest snow fell along and east of the Interstate 95 corridor.
Low pressure off the mid-Atlantic coast intensified dramatically resulting in widespread snowfall along the northeast corridor of the U.S.
A winter storm brought heavy snow to southern Lincoln County. Trained spotters in and around Karval measured 7 to 10 inches of snowfall.
A strong storm system moved northeast from New Mexico into Colorado Friday, December 2nd and into western Kansas Friday night.
Rain changed to sleet and snow from northwest to southeast across much of northeast Kansas. The rain changed to snow after 9pm across north central Kansas and after midnight across the rest of northeast Kansas.
The first major winter storm of the 2012-2013 season brought widespread snowfall of generally 3 to 9 inches to the entire 24-county area, along with several hours of blizzard conditions to most counties.
An intense winter storm tracked from southeastern Colorado into Nebraska. The winter storm brought winter storm and blizzard conditions to portions of the southeast panhandle into southwest and central Nebraska on December 19, 2012.
A moist overrunning snow event that brought up to 10 inches across northwest Montana. There were multiple car slide-offs and accidents that were reported during this event.
Part 1 of 2: The seasons first major winter storm moved into Iowa during the late afternoon and evening of the 19th and continued into the day on the 20th. A strong low pressure developed over southeast Colorado and pushed east across southern Kansas.
A strong area of low pressure moved out of the Central Plains into Illinois and the Great Lakes region on December 19th and 20th. As this storm moved by, it dumped between 5 and 10 inches of snow on southeast Minnesota and produced wind gusts in excess of 40 mph.
An open wave trough over the Great Basin pushed across New Mexico bringing with it snow and high winds.
A winter storm developed over the western United States on December 18th, and then moved into the central Plains on the 19th producing heavy snow, localized areas of sleet and freezing rain, and in some areas blizzard conditions.
A moist Pacific storm system moved into Utah, with precipitation beginning on December 19. Cold air trapped in the valleys of northern Utah helped produce some freezing rain, before switching to all snow.
A snowmobiler died in an avalanche on Saturday, December 19th outside Cooke City. The avalanche occurred on the southeast face of Sheep Mountain between Lulu Pass and Round Lake.
Areas of ice and snow on roadways from a prior winter storm caused dozens of accidents in the freeways in Milwaukee County. This included a pickup truck that slid of the Hoan Bridge resulting in a fatality.
A 20-year-old man died on Interstate 90 after his truck rolled and ejected him. The accident occurred about 20 miles east of Billings. The man lost control due to the ice on the highway. The vehicle rolled and ended up sideways in the median.
Slippery road conditions from black ice contributed to a multi-vehicle accident that resulted in two fatalities and three injuries near Superior.
A series of early season winter storms was followed by a period of dry weather beginning on November 23. The dry pattern resulted in warm days, cold nights and light winds. The weather pattern changed on December 10 as a series of Pacific storms passed through the area.
Arctic air dropped south from Canada the week before Christmas bringing widespread frigid wind chills to the region. The arctic front reported in strong wind gusts and blizzard conditions in Southwest Montana.
An Alberta Clipper crossed southern Wisconsin, bringing a long duration of snowfall to the region. Most locations saw between 3-6 inches of accumulation, with over-performing totals during an evening band of heavy snow in east-central Wisconsin.
In the late evening hours of December 18th, a surface low pressure system began to move southeast out of the Dakotas. The system, originally characterized as a clipper due to its northwest to southeast motion, was unique in that it was ripe with Pacific moisture.
5 on December 19, oldest first.
The third Arctic airmass of the month to spread into the Central California interior was the coldest of the three and produced large amounts of crop damage/loss.
Very cold air descended on Iowa. One death was reported due to the cold. An 85 year old man fell outside his home in Greenfield and apparently was not visible from the street. He was unable to get up and died of hypothermia.
The bitterly cold weather claimed the life of a 50 year-old male. The man was found outside his home, wearing only a few articles of clothing.
Low temperatures dropped to near the freezing mark at O'Hare Airport on December 19th. An elderly man died at his home due to hypothermia and cold exposure.
An Arctic cold front surged south through North and Central Texas on the evening of December 17. High temperatures reached the 70s on the afternoon of the 17th, then dropped rapidly into the 20s by late evening behind the front.
7 on December 19, oldest first.
The Unit 21 Fire started on December 19, 1988, in New Mexico, and burned 2,715 acres.
The S Res Campbell Fire was discovered on December 19, 2002, in Texas, and burned 768 acres; the cause was recorded as recreation and ceremony.
The Unnamed Fire was discovered on December 19, 2008, in South Dakota, and burned 2,500 acres; the cause was recorded as debris and open burning.
A historic dust storm engulfed much of the South Plains this afternoon resulting in dust storm conditions (visibilities at or below 1/2 mile in blowing dust) at the Lubbock International Airport for the longest duration since December 16, 1977.
A line of thunderstorms developed ahead of a cold front that was moving across the region. These thunderstorms produced mostly wind damage across the eastern half of the CWA. The most significant damage was reported in Collin County where a mobile home was rolled onto its top.
A series of three weather systems moved through Montana between December 18 and 21, 2020, bringing strong winds with the first two systems on the 18-19th. Winds increased to 20-35 MPH with gusts to 40 MPH during the overnight hours on the 18-19.
A range fire initiated during the afternoon hours of December 19th near Round Valley Road and 803. By the time the fire was extinguished on December 23rd, 2800 acres of mainly grassland was consumed. One indirect fatality was reported from the fire.
15 on December 19, oldest first.
An earthquake struck Gulf of Iskenderun, Turkey. It caused a tsunami.
An earthquake struck Dughabad,khorasan, Iran. It killed 800 people and did severe (about $5 to $25 million) damage.
An earthquake struck Lisbon, Portugal.
A magnitude 7.4 earthquake struck Cotabato,n Coast of Illana Bay, Philippines. With the tsunami it caused, it killed 97 people and injured 102.
An earthquake struck San Vicente, El Salvador. It killed 400 people.
A magnitude 5.9 earthquake struck Bab-Tangol, Iran. It killed 584 people, injured 1,000 and did severe (about $5 to $25 million) damage.
A magnitude 6 earthquake struck N Central, Tehran, Iran. It killed 26 people and did $5 million in damage.
A magnitude 7.5 earthquake struck Lesbos, Skiros, Aegean Sea, Greece.
A magnitude 7.7 earthquake struck Tonga Trench. It caused a tsunami.
A magnitude 5 earthquake struck Central, Valparaiso, Chile. It destroyed 16 houses.
A magnitude 4.5 earthquake struck Dhaka, Bangladesh. It injured 100.
A magnitude 6 earthquake struck Karonga, Malawi. It killed 3 people, injured 250, destroyed 1,111 houses and did severe (about $5 to $25 million) damage.
A magnitude 6.4 earthquake struck Hualien, Taiwan. It injured 14.
A magnitude 3.7 earthquake struck Luther, Oklahoma, United States.
A magnitude 5.4 earthquake struck Esmeraldas, Ecuador. It killed 3 people, injured 47 and destroyed 10 houses.
1 on December 19, oldest first.
Etna, Italy erupted with a Volcanic Explosivity Index of 1. It killed 1 person.
3 on December 19, oldest first.
A tsunami with a source recorded as earthquake struck Gulf of Iskenderun, Turkey.
A tsunami caused by a magnitude 7.4 earthquake struck Celebes Sea, Philippines. It killed 97 people and injured 102.
A tsunami caused by a magnitude 7.5 earthquake struck Kermadec Islands, Tonga, with a maximum water height of 0.2 meters.
1 on December 19, oldest first.
A G4 (severe) geomagnetic storm began December 19, 1980, reached Kp 8- and lasted 18 hours, with a daily Ap as high as 79; at that Kp the aurora may be seen from about 47 degrees geomagnetic latitude.
1 on December 19, oldest first.
A swell from powerful low far northwest of the islands produced surf of 20 to 30 feet along the north- and west-facing shores of Niihau and Kauai, and the north-facing shores of Oahu, Molokai, and Maui; 15 to 25 feet along the west-facing shores of the Big Island of Hawaii; and…
Gathered from this site’s archives: the tornado record (NOAA SPC, and Grazulis before 1950), IBTrACS and the National Hurricane Center, NOAA NCEI’s Storm Events Database, Regional Snowfall Index, billion-dollar disasters list, State Climate Extremes Committee and hazard databases, USGS, NIFC, GFZ Potsdam’s Kp index (CC BY 4.0), the National Weather Service in Norman, Oklahoma, and Wikidata (CC0), with article leads from Wikipedia under CC BY-SA 4.0, each credited where it appears. Rebuilt 2026-09-24.