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Turning Stormy in the Northwest

An active fall storm pattern developing in the Pacific Northwest this week will bring areas of heavy rain and high elevation snow. Northern California will benefit from rainfall this week that will aid firefighters given the recent large wildfires. Read More >

Three wet microbursts were identified within a squall line that moved through the Sioux Falls area during the early morning hours of June 11th. A microburst is essentially an area of strong surface winds which are accelerated to the ground from aloft in a thunderstorm, and a wet microburst is that which is accompanied by falling precipitation. For a more extensive review of the damage, please see our damage survey. The following image displays the locations damage across the city, as well as the tracks of the three microbursts, represented by the orange, purple, and red rings. The orange and purple tracks likely extended further into central portions of the city, but cannot be identified due to limited radar coverage.

Map showing wind damage throughout Sioux Falls from microburst

 

These reports are summarized in this table, which lists the damage sustained, the estimated wind speed (if available), and the latitude and longitude of the damage.

 

Description

Speed

Latitude Longitude
Damage to homes 100 mph 43° 30' 29" N 96° 49' 30" W
Large tree down 65 mph 43° 30' 33" N 96° 48' 38" W
Branches down 60 mph 43° 30' 34" N 96° 48' 35" W
Tree damage 60 mph 43° 30' 27" N 96° 49' 53" W
Large tree down   43° 30' 27" N 96° 46' 16" W
Power lines down   43° 32' 15" N 96° 42' 23" W
Tree down   43° 30' 50" N 96° 43' 28" W
Tree down   43° 30' 50" N 96° 43' 29" W
Tree down   43° 33' 34" N 96° 45' 18" W
Tree down   43° 30' 54" N 96° 43' 25" W
Tree down   43° 31' 59" N 96° 42' 41" W
Tree down   43° 32' 07" N 96° 42' 27" W
Tree down   43° 32' 55" N 96° 32' 37" W
Tree down   43° 32' 25" N 96° 41' 00" W
Branches down   43° 32' 16" N 96° 42' 22" W
Branches down   43° 32' 12" N 96° 41' 57" W