North Central River Forecast

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HYDROMETEOROLOGICAL FORECAST DISCUSSION
NWS NORTH CENTRAL RIVER FORECAST CENTER TWIN CITIES/CHANHASSEN MN
1113 AM CDT WED MAY 23 2012

...Precipitation...
A new frontal system is tracking to the east across the high
plains today bringing another round of showers and thunderstorms. 
Precipitation since yesterday morning was limited to the Dakotas
and northwest Minnesota.  Showers across this region generally
produced a half inch or less of rain.  Some isolated heavier
amounts up to one inch were reported between Hillsboro and
Montpelier ND. 

As this system continues tracking to the east through tomorrow
morning...locally heavy rain from 1.5 to 2.0 inches is expected 
this afternoon and overnight in a band extending from Spirit Lake
IA to just south of Duluth MN.  Lighter rainfall amounts of less
than one inch are expected over the remainder of MN...northwest
IA...and northwest WI. However...the area of heaviest activity
will fall along the band from south central to east central MN.

Although the next few days look like they will be fairly wet with
light rain persisting over much of the region through the weekend
...the next 24 hours will produce the heaviest rain of the week.

...Hydrologic Conditions...
All rivers remained below flood stage this morning. Factoring in
forecast rainfall through 7am Thursday...some within bank rises
are expected over Minnesota but no new flooding is forecast. 
Factoring in the most probable rainfall forecasts from Thursday
morning through Monday morning...minor flooding is possible over
portions of Minnesota.  Using the heaviest rainfall ensemble
forecast members indicates more widespread minor flooding would be
possible over the Upper Mississippi Valley with localized moderate
flooding possible.  People with interests along rivers and streams
should continue to monitor latest weather and river forecasts this
Memorial Day weekend. Even if there is no new flooding some rivers
should see higher flows.

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


 
$$
 
...mmd/lne...
 
NNNN
NOAA's National Weather Service River Forecast Office
