525
WGUS63 KFSD 201131
FFAFSD
FLOOD WATCH
NATIONAL WEATHER SERVICE SIOUX FALLS SD
631 AM CDT THU SEP 20 2018
.RAIN WITH EMBEDDED THUNDERSTORMS WILL CONTINUE THIS MORNING. THE
GENERAL TREND THOUGH THE MORNING HOURS IS FOR THE RAINFALL RATES
TO DIMINISH. HOWEVER THERE WILL STILL CERTAINLY BE LOCALIZED
POCKETS OF HEAVY RAINFALL, MOST LIKELY IN SOUTHEAST SOUTH DAKOTA,
THE SOUTHERN SECTIONS OF SOUTHWEST MINNESOTA, AND EXTREME
NORTHWEST IOWA WHICH COULD PRODUCE HEAVY RAIN IN A BRIEF AMOUNT
OF TIME. THIS IS DUE TO CONVECTIVE CELLS WHICH WILL OCCASIONALLY
OCCUR. THIS RAINFALL ON TOP OF SATURATED GROUNDS, OR IN URBAN
AREAS, WILL LEAD TO A HEIGHTENED RISK OF FLASH FLOODING AS WELL AS
RIVER FLOODING.
IAZ001>003-012>014-020>022-MNZ071-072-080-081-089-090-097-098-
SDZ040-054>056-059>071-201800-
/O.CON.KFSD.FF.A.0006.000000T0000Z-180920T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LYON IA-OSCEOLA-DICKINSON-SIOUX-O'BRIEN-CLAY IA-PLYMOUTH-CHEROKEE-
BUENA VISTA-LINCOLN MN-LYON MN-MURRAY-COTTONWOOD-NOBLES-JACKSON-
PIPESTONE-ROCK-BROOKINGS-MINER-LAKE-MOODY-DAVISON-HANSON-MCCOOK-
MINNEHAHA-CHARLES MIX-DOUGLAS-HUTCHINSON-TURNER-LINCOLN SD-
BON HOMME-YANKTON-CLAY SD-UNION-
631 AM CDT THU SEP 20 2018
...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 1 PM CDT THIS
AFTERNOON...
THE FLASH FLOOD WATCH CONTINUES FOR
* PORTIONS OF NORTHWEST IOWA, SOUTHWEST MINNESOTA, AND SOUTH
DAKOTA, INCLUDING THE FOLLOWING AREAS, IN NORTHWEST IOWA,
BUENA VISTA, CHEROKEE, CLAY IA, DICKINSON, LYON IA, O'BRIEN,
OSCEOLA, PLYMOUTH, AND SIOUX. IN SOUTHWEST MINNESOTA,
COTTONWOOD, JACKSON, LINCOLN MN, LYON MN, MURRAY, NOBLES,
PIPESTONE, AND ROCK. IN SOUTH DAKOTA, BON HOMME, BROOKINGS,
CHARLES MIX, CLAY SD, DAVISON, DOUGLAS, HANSON, HUTCHINSON,
LAKE, LINCOLN SD, MCCOOK, MINER, MINNEHAHA, MOODY, TURNER,
UNION, AND YANKTON.
* UNTIL 1 PM CDT THIS AFTERNOON
* SHOWERS AND A FEW THUNDERSTORMS WILL CONTINUE THIS MORNING. THE
GENERAL RAINFALL WILL BE TRENDING DOWNWARD. HOWEVER THERE WILL
STILL BE ISOLATED TO SCATTERED POCKETS OF HEAVY RAIN UNDER THE
HEAVIER CELLS WHICH WILL PRODUCE THUNDERSTORMS. THEREFORE
ISOLATED AREAS COULD RECEIVE A QUICK ONE INCH OF RAIN IN A BRIEF
AMOUNT OF TIME, ON TOP OF ALREADY SATURATED GROUND.
* REPORTS OF COUNTY AND TOWNSHIP ROADS, AND EVEN SOME STATE
HIGHWAYS UNDERWATER ARE COMING IN FOR LOCATIONS SOUTH OF
INTERSTATE 90. HEAVY RAINS CAN LEAD TO FLASH FLOODING, WITH
WATER COVERED ROADS AND URBAN FLOODING POSSIBLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.
YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page