Photo right: Ryan Lueck, along Hwy 12 near the I-29 intersectionĢ016 will go down as the 2nd warmest in Mobridge's recorded history, 3rd for Watertown, 5th for Aberdeen, 6th for Sisseton, Timber Lake, and Kennebec, and 11th for Pierre. Photo left: Ryan Lueck, along Hwy 12 near Summit on the 27th. Photo right: Kelly Serr, tree limbs down in Eureka. Left: Radar reflectivity showing a powerful system as of 5 pm. People were still without power in some cases 5+ days after the storm. Many soaked roadways froze overnight on the 26th and blizzard conditions set in with 60+ mph wind gusts.
Thunder and lightning was also reported across the area this Christmas day/evening. Daily precipitation amounts in Mobridge and Aberdeen of 1.52" and 1.28" broke records for their wettest December day, and Mobridge their wettest winter (Dec-Feb) day. This was one of the worst ice storms to affect South Dakota since the November storm of 2005, as over 1" accumulations were observed across northeastern and north central South Dakota. Hundreds of power poles went down leaving thousands without power (at least 17,000 at one point on the 26th). Additionally, high winds from teh 25-26th exacerbated power outages and led to blizzard conditions across much of the state. Photo right: Angela Hillberg, in Watertown.Ī significant winter storm encased in ice, buried under snow, and even flooded South Dakotans on December 25th. Left: Radar estimated 48 hour rainfall totals of up to 6" from 7 am 8/10 to 8/12. A rescue was required on Hwy 20 as multiple vehicles had stalled in the water. Amazingly, 3.29" of that total fell during a one hour period from 11 pm to midnight, and 1.29" of that amount fell within a 12 minute period from 11:10-11:22 pm. A total of 3.90" of rain was recorded at the Watertown airport on August 11th, which broke the previous daily rainfall record of 1.66" in 1974. Flooding resulted, with Watertown, SD being among the hardest hit.
#Big weather events 2016 series
The last round in this series developed in a very moisture-laden environment across eastern South Dakota on Thursday evening, August 11th, and produced very heavy rainfall primarily across Clark, Codington, Hamlin, and Deuel counties. Photo right: Edmunds County EM, at Trail Days site.Īn active pattern set up across South Dakota from August 9-11th, in which round after round of severe storms and heavy rain developed and moved east.
Photo left: Marshall County EM, barn destroyed near Hillshead. Right: Radar reflectivity and velocity of the bow echo across Corson county There were numerous reports of damage to trees and structures with this event. Some of the hardest hit areas were across Marshall and Edmunds counties. During this time, large hail, heavy rain, and wind gusts to 90 mph were produced. Around the same time, a bow echo began impacting Corson county, and it would travel east across the state and into west central Minnesota over the next several hours. A slow moving supercell produced baseball sized hail, damaging winds and funnel clouds northwest of Eureka around 11 pm. Severe thunderstorms developed in a volatile atmosphere across northern South Dakota during the evening of August 9th and early morning hours of August 10th. Right: Radar image of low-topped tornado-producing storms Photo left: Brenda Holscher, from Main Street in Waubay. Photo right: Marie Johnson, on Hwy 12 west of Webster Photo left: Jeff Gonzales near Wilmot, MN. Minor damage resulted with this particular tornado as it tracked over a farmstead. The longest-tracked tornado developed at 4:14 pm 4 miles west of Corona and traveled north 5.6 miles before lifting near Wilmot, MN. Instead, a very sheared and moist environment was enough for weak tornado formation (all 6 were rated EF-0). The environment for severe weather was somewhat atypical, as there were no reports of large hail or damaging winds. As thunderstorms formed during the afternoon and early evening along a warm which extended into west central Minnesota, 6 confirmed tornadoes developed across Day, Grant, Roberts, Big Stone and Traverse counties. In chronological order:Īn area of northeastward-lifting low pressure traveled across northeastern South Dakota and produced showers and thunderstorms along the way (over an inch of rain in some cases). While many significant weather events affected many across central and northeast South Dakota and west central Minnesota in 2016, below is a listing of the top 5 events of the year in terms of scope, severity of impacts, and/or rarity.
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