NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 401 AM CDT MON JUN 20 2011
* SCATTERED SHOWERS AND THUNDERSTORMS TODAY WILL BECOME MORE WIDESPREAD TONIGHT AND CONTINUE THROUGH WEDNESDAY MORNING. DUE TO A VERY MOIST ATMOSPHERE EXPECTED AND A PROLONGED PERIOD OF MODERATE TO OCCASIONALLY HEAVY PRECIPITATION...RAINFALL TOTALS OF THREE TO FOUR INCHES WILL FALL ACROSS THE WATCH AREA.
* WIDESPREAD AREAL FLOODING WITH STREAMS...CREEKS AND AREA RIVERS RISING SIGNIFICANTLY BY MIDWEEK. IF RAINFALL AMOUNTS EXCEED THREE TO FOUR INCHES OVER A BROAD AREA OF THE HEADWATERS OF THE MINNESOTA RIVER BASIN...EXPECT MANY AREAS FROM MONTEVIDEO... DOWNSTREAM THROUGH THE TWIN CITIES TO EXPERIENCE A RISE OVER THE NEXT WEEK...AND LIKELY GOING ABOVE FLOOD STAGE.
...A PROLONGED PERIOD OF RAINFALL EXPECTED TO DEVELOP...
.A FLOOD WATCH HAS BEEN ISSUED FOR MOST OF WEST CENTRAL AND PORTIONS OF CENTRAL MINNESOTA FROM LATE TONIGHT TO WEDNESDAY MORNING. THIS WATCH IS MAINLY WEST OF LINE FROM REDWOOD FALLS TO LONG PRAIRIE. A STRONG STORM SYSTEM FOR LATE JUNE IS EXPECTED TO DEEPEN ACROSS THE PLAINS...AND MOVE INTO THE UPPER MIDWEST BY TUESDAY NIGHT. SCATTERED SHOWERS AND THUNDERSTORMS TODAY WILL BECOME MORE WIDESPREAD OVERNIGHT...AND THROUGH THE DAY TUESDAY AND TUESDAY NIGHT. DUE TO A VERY MOIST AIRMASS EXPECTED TO BE IN PLACE...AND SEVERAL ROUNDS OF MODERATE TO HEAVY RAINFALL LIKELY...RAINFALL TOTALS WILL EXCEED THREE TO FOUR INCHES OVER A BROAD AREA OF THE UPPER PORTION OF THE MINNESOTA RIVER BASIN. IN ADDITION TO STREAMS...CREEKS AND RIVERS RISING...EXPECT MANY FARM FIELDS TO FLOOD IF THESE CONDITIONS DEVELOP. ANY DEVIATION TO THE EXACT TRACK OF THIS STORM SYSTEM...AND EXPECTED HEAVIER RAINFALL BANDS...WILL LEAD TO FLOODING IN OTHER PARTS OF MINNESOTA.