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
100 PM CDT Thu Mar 23 2017

...Precipitation...

In the last 24 hours, virga moved across Minnesota into Wisconsin,
with almost no snow or rain reaching the ground, but working to
reduce the extreme dryness in the atmosphere.  Thunderstorms
popped up this morning over St. Louis, dropping isolated totals
of about a third of an inch.

The St. Louis storms are moving off through southern Illinois.
New storms are beginning to pop up south of Sioux Falls, SD.
These are the beginning of the more widespread event anticipated
over the next few days.  In the next 24 hours, three quarters of
an inch is expected in southern Minnesota.  That will continue
and progress east across central Wisconsin and northern lower
Michigan over the following day.  Two day totals along this line
will approach 1.5-2 inches.  An additional line of storms will
start on Friday, extending more south-north from central
Missouri up along the Iowa-Illinois border, dropping up to 1.5
inches in that area.  Light rain will linger through the weekend
from Iowa and Missouri across to Michigan.

...Hydrologic Conditions...

The northern portion of the NCRFC Service Area including northern
North Dakota and northern Minnesota still have a significant snow
cover.

High temperatures in the northern Red River of the North Basin
were above freezing early this week.  This warmup has initiated
runoff in the Two Rivers Basin in northwestern Minnesota where
minor flooding occurred.

A warming trend is expected to settle in over North Dakota and
northern Minnesota this weekend which could initiate snowmelt
flooding at other locations.

Long Range Outlook products are being issued today for the Souris
Basin to support flood preparations.  Products will be issued
Friday morning elsewhere in the NCRFC Service Area.

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: LNE... JDT... LLD... RHR

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


$$

...jmp/bac...





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