Hydrometeorological Discussion
Issued by NWS North Central River Forecast Center

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AGUS73 KMSR 241712

Hydrometeorological Forecast Discussion
NWS North Central River Forecast Center Twin Cities/Chanhassen MN
1112 AM CST Fri Feb 24 2017


A potent storm system tracked through the region starting Thursday
afternoon and continued into this morning. Widespread rain and even
some thunderstorms were seen from Iowa and Illinios up into southern
Wisconsin and lower Michigan. North of this, the precipitation
changed over to snow with some pretty healthy accumulations in a
narrow band from southern Minnesota into western Wisconsin. Snow
totals up to a foot were seen in this narrow band, but overall
amounts were less than that. .

Liquid amounts from all of this precipitation were pretty impressive
for a February system. There were widespread reports of a half to
three-quarters of an inch from the Omaha area, across the northern
half of Iowa and through the southern half of Wisconsin. Within that
band, several reports of up to 1.50 inches were seen.

This system will continue to move through the region today, and exit
the Great Lakes by Saturday. Convective rains in Michigan will give
way to snow as the day wears on, and a band of snow on the western
flank of the system will continue to provide accumulating snows from
Iowa and southeast Minnesota, through Wisconsin and into Michigan.
Liquid amounts from this could end up between a quarter and a half
inch in the lake effect areas of the U.P. of Michigan, with amounts
of a quarter inch or less from Wisconsin into lower Michigan. Colder
temperatures will then settle in for a few days. Precipitation will
be confined primarily to the lake effect belts through the weekend.

...Hydrologic Conditions...

Rain and snowmelt earlier this week generated river rises
exceeding moderate flood levels at a few locations
in Wisconsin.  The Wisconsin River at Portage is expected to rise
above moderate flood stage over the next couple of days.

Elsewhere, minor flooding is occurring or expected in Iowa,
Minnesota, and along the Red River of the North.

The mainstem Mississippi River could rise above minor or moderate
flood levels in early March as bankfull and minor flooding on area
tributaries flows into the main channel.

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: (JMP...JDT...ALH...MAW)

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



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