St. Charles

Flood Warning
Statement as of 21:54 CDT le 21 mai 2013

The Flood Warning continues for
the Mississippi River at Alton.
* At 9:30 PM Tuesday the stage was 21.4 feet.
* Flood stage is 21.0 feet.
* Minor flooding is occurring.
* Forecast... the river will rise to near 22.1 feet by Thursday morning.


Lat... Lon 3891 9033 3895 9028 3883 9003 3881 9017 3886 9017





954 PM CDT Tue may 21 2013

The Flood Warning continues for
the Mississippi River at Grafton.
* At 9:30 PM Tuesday the stage was 22.5 feet.
* Flood stage is 18.0 feet.
* Minor flooding is occurring.
* Forecast... the river will rise to near 22.7 feet by tomorrow morning
then begin falling.


Lat... Lon 3881 9057 3888 9057 3899 9046 3895 9028 3882 9048





942 PM CDT Tue may 21 2013

The Flood Warning continues for
the Dardenne creek at St. Peters
* at 9:10 PM Tuesday the stage was 21.5 feet.
* Flood stage is 18.0 feet.
* Moderate flooding is occurring.
* Forecast... the river will fall below flood stage by tomorrow morning.


Lat... Lon 3875 9063 3879 9066 3883 9063 3882 9061 3876 9062



                   fld latest 7am forecast
location stg obs stg 05/22 05/23 05/24 05/25 05/26

Dardenne creek
St. Peters 18.0 21.54 18.1 13.1 9.3 5.7 4.9


Record Report
Statement as of 02:53 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.



Local Storm Report


05/20/2013 1100 PM

Cottleville, St Charles County.

Flash flood, reported by NWS employee.


            Highway N near Weiss Rd closed due to flooding





05/21/2013 0825 am

St. Peters, St Charles County.

Heavy rain m4.07 inch, reported by NWS employee.


            24-hr total.





05/21/2013 0700 am

Harvester, St Charles County.

Heavy rain m3.80 inch, reported by co-op observer.


            24-hr total.





05/21/2013 0535 am

1 miles NNW of Weldon Sprin, St Charles County.

Heavy rain m5.35 inch, reported by NWS employee.


            Storm total since Sunday.





05/21/2013 0700 am

Weldon Spring, St Charles County.

Heavy rain m3.42 inch, reported by NWS employee.


            24-hr total.





05/21/2013 0700 am

Cottleville, St Charles County.

Heavy rain m3.85 inch, reported by co-op observer.


            24-hr total.





05/21/2013 0653 am

2 miles SSE of St. Peters, St Charles County.

Heavy rain m4.02 inch, reported by co-op observer.






05/21/2013 0653 am

2 miles SSE of St. Peters, St Charles County.

Heavy rain m4.02 inch, reported by co-op observer.






05/21/2013 0617 am

St. Peters, St Charles County.

Heavy rain m4.50 inch, reported by trained spotter.


            Rainfall total since last evening.





05/21/2013 0617 am

St. Peters, St Charles County.

Heavy rain m4.50 inch, reported by trained spotter.


            Rainfall total since last evening.





05/21/2013 0515 am

St. Peters, St Charles County.

Heavy rain m4.04 inch, reported by trained spotter.


            24 hour rainfall total





05/20/2013 0723 PM

Wentzville, St Charles County.

Hail e0.50 inch, reported by amateur radio.





05/20/2013 0731 PM

Wentzville, St Charles County.

Hail e0.25 inch, reported by trained spotter.





05/20/2013 0738 PM

Lake St. Louis, St Charles County.

Hail e0.25 inch, reported by trained spotter.





05/20/2013 0740 PM

2 miles SSW of O'Fallon, St Charles County.

Hail e0.25 inch, reported by NWS employee.





05/20/2013 0758 PM

O'Fallon, St Charles County.

Hail e0.50 inch, reported by airplane pilot.





05/20/2013 0812 PM

Cottleville, St Charles County.

Thunderstorm wind damage, reported by trained spotter.


            1 tree blown down




05/20/2013 0816 PM

Harvester, St Charles County.

Hail e0.50 inch, reported by trained spotter.





05/20/2013 0817 PM

Harvester, St Charles County.

Hail m1.00 inch, reported by amateur radio.





05/20/2013 0817 PM

St. Charles, St Charles County.

Hail e1.00 inch, reported by trained spotter.





05/20/2013 0821 PM

St. Charles, St Charles County.

Hail e0.50 inch, reported by trained spotter.





05/20/2013 0824 PM

St. Peters, St Charles County.

Hail e1.00 inch, reported by broadcast media.





05/20/2013 0830 PM

1 miles NW of St. Peters, St Charles County.

Heavy rain m1.50 inch, reported by trained spotter.


            Fell in past hour... near intersection of Mexico Road
            and Grand Teton drive.




05/20/2013 0833 PM

O'Fallon, St Charles County.

Thunderstorm wind damage, reported by trained spotter.


            Power lines down at Mexico and Bryan Road




05/20/2013 0910 PM

Cottleville, St Charles County.

Heavy rain m1.90 inch, reported by NWS employee.


            NWS employee reported 1.90 inches of rain since the
            start of the rain.




05/20/2013 0930 PM

4 miles E of Washington, St Charles County.

Thunderstorm wind gust m50 mph, reported by amateur radio.





05/20/2013 0947 PM

4 miles NNE of Orchard farmonroe, St Charles County.

Thunderstorm wind gust m69 mph, reported by ASOS.





05/20/2013 1000 PM

St. Charles, St Charles County.

Flash flood, reported by amateur radio.


            Flooding at kingshighway and 1st Capitol... .water
            approximately 10 inches deep and Fire Department is
            pulling cars out of flood waters




05/20/2013 1116 PM

St. Charles, St Charles County.

Flash flood, reported by trained spotter.


            Flooding on Elm Street




05/20/2013 1116 PM

St. Charles, St Charles County.

Flash flood, reported by trained spotter.


            Flooding on Elm Street





05/20/2013 1116 PM

St. Charles, St Charles County.

Flash flood, reported by trained spotter.


            Flooding on Elm Street





05/20/2013 1000 PM

St. Charles, St Charles County.

Flash flood, reported by amateur radio.


            Flooding at kingshighway and 1st Capitol... .water
            approximately 10 inches deep and Fire Department is
            pulling cars out of flood waters





05/20/2013 0947 PM

4 miles NNE of Orchard Farm, St Charles County.

Thunderstorm wind gust m69 mph, reported by ASOS.






05/20/2013 0930 PM

4 miles E of Washington, St Charles County.

Thunderstorm wind gust m50 mph, reported by amateur radio.






05/20/2013 0910 PM

Cottleville, St Charles County.

Heavy rain m1.90 inch, reported by NWS employee.


            NWS employee reported 1.90 inches of rain since the
            start of the rain.





05/20/2013 0833 PM

O'Fallon, St Charles County.

Thunderstorm wind damage, reported by trained spotter.


            Power lines down at Mexico and Bryan Road





05/20/2013 0830 PM

1 miles NW of St. Peters, St Charles County.

Heavy rain m1.50 inch, reported by trained spotter.


            Fell in past hour... near intersection of Mexico Road
            and Grand Teton drive.





05/20/2013 0817 PM

St. Charles, St Charles County.

Hail e1.00 inch, reported by trained spotter.






05/20/2013 0817 PM

St. Charles, St Charles County.

Hail e1.00 inch, reported by trained spotter.






05/20/2013 0824 PM

St. Peters, St Charles County.

Hail e1.00 inch, reported by broadcast media.






05/20/2013 0821 PM

St. Charles, St Charles County.

Hail e0.50 inch, reported by trained spotter.






05/20/2013 0817 PM

Harvester, St Charles County.

Hail m1.00 inch, reported by amateur radio.






05/20/2013 0812 PM

Cottleville, St Charles County.

Thunderstorm wind damage, reported by trained spotter.


            1 tree blown down





05/20/2013 0812 PM

Cottleville, St Charles County.

Thunderstorm wind damage, reported by trained spotter.


            1 tree blown down





05/20/2013 0818 PM

Harvester, St Charles County.

Hail e0.50 inch, reported by trained spotter.






05/20/2013 0758 PM

O'Fallon, St Charles County.

Hail e0.50 inch, reported by airplane pilot.






05/20/2013 0740 PM

2 miles SSW of O'Fallon, St Charles County.

Hail e0.25 inch, reported by NWS employee.






05/20/2013 0738 PM

Lake St. Louis, St Charles County.

Hail e0.25 inch, reported by trained spotter.






05/20/2013 0731 PM

Wentzville, St Charles County.

Hail e0.25 inch, reported by trained spotter.






05/20/2013 0731 PM

Wentzville, St Charles County.

Hail e0.25 inch, reported by trained spotter.






05/20/2013 0723 PM

Wentzville, St Charles County.

Hail e0.50 inch, reported by amateur radio.






05/20/2013 0315 am

Defiance, St Charles County.

Thunderstorm wind damage, reported by broadcast media.


            Several trees down near intersection of Highway 94 and
            Highway dd near Defiance.





05/20/2013 0333 am

Harvester, St Charles County.

Thunderstorm wind gust m51 mph, reported by NWS employee.




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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