Marion Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Flood Warning
Issued: 11:00 AM CDT May. 22, 2018 – National Weather Service

The Flood Warning continues for
the Mississippi River at Hannibal
* until Monday morning.
* At 10:15 am Tuesday the stage was 18.3 feet.
* Flood stage is 16.0 feet.
* Minor flooding is forecast.
* The river is forecast to continue falling to below flood stage by
Sunday morning.
* Impact: at 18.0 feet... gate Wells are shut down to prevent the
sewers from backing up. Also at this level pumps are set to
standby.
* Impact: at 17.0 feet... John Hay Recreation Area on east side
(inside the Illinois sny levee) begins flooding.
* Impact: at 16.0 feet... flood stage. Damage begins to buildings in
unprotected low areas. Minor flooding begins.


                   Fld latest 7 a.M. Forecast
location stg obs stg 05/23 05/24 05/25 05/26 05/27

Mississippi River
Hannibal 16.0 18.28 17.7 17.2 16.7 16.3 16.0




Lat... Lon 3983 9148 3983 9135 3974 9121 3967 9135







1100 am CDT Tue may 22 2018

The Flood Warning continues for
the Mississippi River at Quincy ld21
* until Wednesday morning.
* At 10:00 am Tuesday the stage was 17.0 feet.
* Flood stage is 17.0 feet.
* Minor flooding is occurring.
* The river is forecast to continue falling to below flood stage by
late this morning.
* Impact: at 17.0 feet... flood stage: minor flooding begins.
* Impact: at 14.0 feet... unprotected bottomlands flood.
* Impact: at 12.3 feet... this is the upper limit of the target pool
level at lock and dam 21.
* Impact: at 12.2 feet... this is the target pool level for navigation
at lock & dam 21.
* Impact: at 12.0 feet... at some point between 11.6 to 12.1 feet, the
corps will lift all gates out of the river creating "open river"
conditions, corresponding to an approximate discharge of 140,000
cfs.
* Impact: at 11.8 feet... this is the lower limit of the target pool
level at lock & dam 21.


                   Fld latest 7 a.M. Forecast
location stg obs stg 05/23 05/24 05/25 05/26 05/27

Mississippi River
Quincy ld21 17.0 17.01 16.4 15.9 15.4 14.9 14.4




Lat... Lon 3991 9152 3991 9140 3983 9135 3983 9148







1100 am CDT Tue may 22 2018

The Flood Warning continues for
the Mississippi River at Quincy
* until Thursday afternoon.
* At 10:15 am Tuesday the stage was 17.7 feet.
* Flood stage is 17.0 feet.
* Minor flooding is forecast.
* The river is forecast to continue falling to below flood stage by
tomorrow early afternoon.
* Impact: at 15.0 feet... Riverside campsites south of Quincy begin to
flood.
* Impact: at 14.0 feet... unprotected bottomlands flood on both sides
of the river above and below the gage.

                   Fld latest 7 a.M. Forecast
location stg obs stg 05/23 05/24 05/25 05/26 05/27

Mississippi River
Quincy 17.0 17.67 17.1 16.6 16.1 15.7 15.4




Lat... Lon 4003 9153 4003 9140 3991 9140 3991 9152







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