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
1200 PM CDT Mon Aug 21 2017

...Precipitation...
Thunderstorms developed over northwest Iowa last night and spread
across much of that state and into northern Missouri by this
morning.  The heaviest rain in the NCRFC area stretched along the
I-90 corridor from around Des Moines, IA and points westward, with
Guthrie Center, IA reporting 4.85 inches.  Amounts ranged from
half to one and three quarters inches around Des Moines.  Other
narrow lines of thunderstorms brought isolated half to one and a
half inches to southeast Minnesota and around the southern and
western Chicago metro area.

During the next 24 hours...rain is forecast for all of the NCRFC
forecast area except for western North Dakota and northern
Minnesota.  The heaviest rain of half an inch to one and a half
inches is forecast to fall from Upper Michigan southwest through
Iowa and northern Illinois.  The significant rain will push east
out of the NCRFC forecast area during the day Tuesday as the cold
front continues to push eastward.

...Hydrologic Conditions...
There is currently some bankfull rises throughout the Minnesota
River watershed due to heavy rains last Wednesday.  Otherwise
there is no significant flooding currently occurring within the
NCRFC service area.  There is potential for significant flooding
across parts of southern Minnesota, western Wisconsin, northern
Iowa, and western Illinois with the forecast rainfall the next 24
hours.

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: HIC JMP JDT

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

$$

...lne/jdt...




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