Public Information Statement
Issued by NWS St. Louis, MO

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NOUS43 KLSX 102106 AAA
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ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-110015-

PUBLIC INFORMATION STATEMENT...UPDATED
NATIONAL WEATHER SERVICE ST LOUIS MO
405 PM CDT Fri Apr 10 2015

...Microburst Surveyed in Chesterfield Missouri...

A National Weather Service meteorologist surveyed the damage caused
by a severe thunderstorm on the evening of April 9, 2015.  The
damage was caused by a microburst that occurred on the grounds of
Spirit of St. Louis Airport, most likely near the end of runway 26R.
The microburst began around 716 PM and likely ended shortly
thereafter around 720 PM.  There was heavy damage to a building
about 440 yards from the end of runway 26R.  The wind was estimated
at up to 120 mph when it hit the building.  A small garage door was
blown off its track and the wind entered the building through this
space.  The wind peeled off the roof and compromised the structure
of a second garage; the roof of this second garage mostly collapsed
into the building.  Roof materials were thrown as much as 150 yards
from the building, including air conditioning units.  The damage
pattern was clearly divergent which lends to the microburst
identification.

Scattered minor tree, sign, and roof damage was noted on the
northern periphery of the microburst.  Estimated wind speeds ranged
from 65 to 90 mph.

$$

Carney




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