Hydrometeorological Discussion
Issued by NWS North Central River Forecast Center

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AGUS73 KMSR 241833
HMDMSR

HYDROMETEOROLOGICAL FORECAST DISCUSSION
NWS NORTH CENTRAL RIVER FORECAST CENTER TWIN CITIES/CHANHASSEN MN
1230 PM CST WED DEC 24 2014

...PRECIPITATION...
MOST OF THE NCRFC AREA RECEIVED SOME FORM OF PRECIPITATION OVER
THE PAST 24 HOURS. IT FELL MOSTLY AS RAIN...BUT SOME PARTS OF IOWA
GOT OCCASIONAL PERIODS OF SNOW...PLUS SNOW WAS REPORTED FURTHER
NORTH UP INTO NORTHERN WISCONSIN AND THE UPPER PENINSULA OF
MICHIGAN. RAIN/WATER EQUIVALENT AMOUNTS WERE FAIRLY VARIABLE...
RANGING FROM JUST A FEW TENTHS IN MANY LOCATIONS TO ABOUT A
HALF INCH OR MORE IN PARTS OF CENTRAL IOWA...THE UPPER PENINSULA
OF MICHIGAN...AND FAR NORTHERN WISCONSIN.

FOR THE NEXT 24 HOURS...AS THE STORM SYSTEM AFFECTING OUR REGION
PUSHES FURTHER EAST...THE FOCUS FOR HEAVIER PRECIPITATION IS
EXPECTED TO SHIFT INTO THE LOWER MICHIGAN AREA. AMOUNTS THERE MAY
REACH 1.0 TO 1.5 INCHES...MAINLY AS YOU GO FROM THE SOUTHWEST CORNER
HEADING NORTHEAST. THEN...DRIER WEATHER IS ANTICIPATED FOR THE
FOLLOWING DAY.

TEMPERATURES ARE STILL ABOVE NORMAL IN MOST LOCATIONS...BUT AFTER
CHRISTMAS ARCTIC AIR IS EXPECTED TO BEGIN MAKING A SIGNIFICANT PUSH
SOUTHWARD...DROPPING TEMPERATURES QUITE LOW OVER MUCH OF THE UPPER
MIDWEST TOWARDS THE END OF THE MONTH.


...HYDROLOGIC CONDITIONS...
RIVERS ARE ON THE RISE ACROSS EASTERN ILLINOIS...NORTHERN INDIANA
AND MICHIGAN.  SOME MINOR FLOODING IS FORECAST FOR INDIANA AND
MICHIGAN.  NO MODERATE LEVEL OR ABOVE FLOODING IS EXPECTED.

THE POST CHRISTMAS ARCTIC AIR INTRUSION MAY LEAD TO A FRAZIL ICE
FORMATION SITUATION WITH THESE HIGHER FLOW LEVELS WE ARE
EXPERIENCING.  RIVERS IN THE NORTHERN PORTION OF THE AREA SHOULD
BE MONITORED FOR FREEZE UP JAM FORMATION.



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:  ALH ... SAS ... SDB ... DAM

IF NO RESPONSE FROM THIS LIST... CALL THE DOH...SCH OR HIC.


$$

...DAM/SDB...





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