Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Overview

During the morning hours of June 11, 2017, a line of severe thunderstorms trekked eastward out of South Dakota, across Southern and Central Minnesota, and through Northern Wisconsin into the Upper Peninsula of Michigan. The system produced widespread wind gusts, large hail, and a tornado. Radar output encompassing the period from initial storm development around 1 AM CDT through 3 PM CDT is shown below.

Tornado
Photos & Video
Radar
Storm Reports

Tornado:

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Tornado - Kandiyohi, MN
KANDIYOHI COUNTY

Date	June 11, 2017
Time (Local)	7:31 - 7:33 AM CDT
EF Rating	1
Est. Peak Winds	90 mph
Path Length	1.63 miles
Max Width	300 yards
Injuries/Deaths	0
Summary: The tornado mostly hit trees and crops, but during the latter half of its path, the tornado did move across or just south of a couple metal farm buildings, causing heavy damage.

Track Map

The Enhanced Fujita (EF) Scale classifies tornadoes into the following categories:

EF0 Weak 65-85 mph	EF1 Moderate 86-110 mph	EF2 Significant 111-135 mph	EF3 Severe 136-165 mph	EF4 Extreme 166-200 mph	EF5 Catastrophic 200+ mph

Photos:


Hail in Coon Rapids, MN	Wind Damage near Lake Nokomis, MN	Wind Damage in Minneapolis, MN

Radar:

Header

Radar Loop from 6:05AM to 12:54 PM on June 11, 2017

Storm Reports

Click link to see storm reports for June 11, 2017: http://www.spc.noaa.gov/exper/archive/event.php?date=20170611

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Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

Summary of June 11, 2017 Widespread Damaging Wind and Hail Event