Hydrometeorological Discussion
Issued by NWS North Central River Forecast Center

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Hydrometeorological Forecast Discussion
NWS North Central River Forecast Center Twin Cities/Chanhassen MN
0115 PM CDT Thu Sep 29 2016

...Precipitation...

An occluded low pressure system over Indiana and Ohio and a
trailing frontal system brought wrap-around precipitation to
southeastern Lower Michigan.  The heaviest rain fell over the
Detroit area where there were reports as high as 5.5".

The occluded low pressure system over the Great Lakes will stall
during the next 3 days.  During that time we are expecting
generally up to a half inch over Michigan, western Wisconsin, and
western Illinois.  Between 1" and 2" are forecast over
southeastern Michigan and northern Indiana.  Heavier amounts are
expected in the eastern portion of that area.

...Hydrologic Conditions...
Significant flooding continues across much of eastern Iowa as last
week`s heavy rainfall works its way through the the tributary
watersheds and in to the mainstem Mississppi.

Significant flooding continues along the Cedar River from Cedar
Falls and on downstream. Stages are falling at Cedar Rapids but
levels are expected to remain above flood stage until early next
week.  Major flooding is imminent for communities further
downstream on the Cedar, and on the Iowa River all the way to
the Mississippi River confluence.

The Wapsipinicon River has crested at Anamosa and routed flows
are now causing Major flooding at De Witt Iowa.

Moderate or higher flood levels are forecast for much of the
Mississippi River downstream of Dubuque, Iowa. Major flooding is
forecast from Lock and Dam 17 at New Boston downstream through
Burlington. The crest isn`t expected to reach Dam 19 at Keokuk
until early October, and will make its way downstream with flood
levels expected to continue in Missouri in to the following
week.

For additional and more in-depth information concerning river
forecasts, precipitation and all hydrometeorological information
in the NCRFC area of responsibility, please refer to the NCRFC
web page at:     http://www.weather.gov/ncrfc

Emergency Call Back List: dcg... rjw... wes... alh

If no response from this list, call the DOH, SCH or HIC.


$$

...bac/jdt...





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