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Missouri, Montgomery

Record Report

Statement as of 2:53 AM CDT on May 21, 2013


... Record daily maximum rainfall set at Columbia ASOS...

a record rainfall of 1.48 inches was set at Columbia ASOS yesterday.
This breaks the old record of 1.2 set in 1947.



Public Information Statement

Statement as of 8:25 PM CDT on May 21, 2013


... Damage survey results for Hannibal... Missouri

* maximum ef-scale rating: EF-1

* fatalities: 0

* injuries: 0

* begin time/location: 05/20/2013... 724 PM CDT... 39.6938/-91.4486


* end time/location: 05/20/2013... 726 PM... 39.7036/-91.4309

* maximum estimated wind speed: 90 mph

* path length: 1.15 miles

* maximum path width: 50 yards

* discussion/damage: a small tornado damaged trees and one
structure just southwest of Hannibal... about a mile south of
Hannibal regional medical center. The tornado first damaged
trees at the intersection of County roads 437 and 418. The
tornado moved northeast and caused its most intense damage... low
end EF-1... at the intersection of County Highway 418 and 437. In
this area several large trees were either uprooted or snapped
halfway up the trunk. The tornado moved northeast to Highway mm
where it tore about one-quarter of the tin roofing off a farm
building and damaged some trees. The tornado dissipated as it
crossed Highway mm

The thunderstorm continued east northeast and caused considerable
wind damage in Hannibal. The damage area was roughly from Highway
mm north to Hannibal/La Grange College. One building at the
College had a portion of its roof torn off. Numerous trees were
uprooted or snapped along Palmyra Road/mark Twain Avenue. A three
story brick building in downtown Hannibal on Main Street had a
wall collapse and about half of its roof torn off. Wind gusts in
this area were likely around 100 mph. Tree damage was common west
of the downtown area to Highway 61 and then west of 61 along West
Ely. The subdivisions around Pioneer Lake and Apollo Lake had
numerous large trees branches down. One home near Apollo Lake had
windows broken by flying debris. A small building lost part of its
roof on the south side of Hannibal near Highway 61 and Market street.

This preliminary information was determined by a National Weather
Service survey team and is subject to change pending final review
of the event and publication in National Weather Service storm
data.

This information can also be found on our website at
www.Weather.Gov/lsx. More information will be available at
a later date when surveys have been completed.

For reference... the Enhanced Fujita scale classifies tornadoes
into the following categories:

EF0... wind speeds 65 to 85 mph
EF1... wind speeds 86 to 110 mph
EF2... wind speeds 111 to 135 mph
EF3... wind speeds 136 to 165 mph
EF4... wind speeds 166 to 200 mph
EF5... wind speeds greater than 200 mph


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Vermont - Severe Thunderstorm Watch , Special Statement
Virginia - Areal Flood Advisory , Record Report
Washington - Winter Weather Advisory , Record Report
West Virginia - Record Report
Wisconsin - Flood Warning , Areal Flood Advisory
Wyoming - Public Information Statement
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