NOAA - Humboldt Tornado Report

Here's a bit more reading info on the tornado that barely missed the Sanctuary. On the second map, the dot with 10:48 (when we lost power) is when the tornado hit the neighbor's house (.5 miles from the Sanctuary). Just prior to that time (around 10:30 or 10:45ish) Mike and I were trying to shut the screen door. Goes to show how close we were to that twister.
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http://www.crh.noaa.gov/news/display_cmsstory.php?wfo=fsd&storyid=102925&source=0
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National Weather Service Weather Forecast Office

June 17th Humboldt Tornado Preliminary Rating EF-2

...Preliminary NWS Damage Survey for Humboldt, South Dakota Tornado...

Overview...

A brief tornado developed late Tuesday evening, June 17, 2014, southeast of Humboldt, South Dakota and traveled to the northwest.  The tornado was on the ground for 18 minutes and affected two family residences along its route with one 
family at home during the tornado.  The family was in bed as the storm approached and received a call from their daughter
informing them of the tornado and the warning that was issued for their location.  They immediately went to the basement
for shelter and a few minutes later the tornado struck their home.  They received no injuries and today credit their 
daughter and the warning for their safety.

 
Humboldt, SD Tornado

EF Scale Rating
EF-2
Estimated Peak Wind
125 mph 
Path Length in statute miles
3.43
Maximum path width
400 yds
Fatalities
0
Injuries
0
 
 
State Date
June 17, 2014
Start Time
10:44 pm CDT
Start Location
3.5 miles SSE of Humboldt, SD
 
 
End Date
June 17, 2014
End Time
11:02 pm CDT
End Location
1.5 miles SW of Humboldt, SD

Map of the Humboldt, SD tornado track

Click on map to download a kmz file tha twill display this path in Google Earth.  If you download the kmz file and import it into Google Earth, each triangle
will link to a description of the damage that was observed and may also include photos.

Track of the tornadic circulation as seen on radar

 
This image is of the track of the tornadic circulation as seen on radar.  Note that the location of the circulation on radar
does not necessarily match the track of the tornado.  In many cases, the radar signature of the tornado can be seen several 
minutes prior to the tornado developing.  Also the location of the tornado on the ground can be a few miles from the location
of the tornadic signature on radar.
The track of this tornado was more erratic than most tornadoes as its motion varied from south to west to northwest during its life.

EF0...Weak......65 to 85 mph
EF1...Weak......86 to 100 mph
EF2...Strong.....111 to 135 mph
EF3...Strong.....136 to 165 mph
EF4...Violent....166 to 200 mph
EF5...Violent....Greater than 200 mph
Note:
The information in this statement is preliminary and subject to change pending final review of the 
event and publication in the National Weather Service Storm Data.