... Flash Flood Watch in effect from 7 PM CDT this evening through
Friday morning...
The National Weather Service in Sioux Falls has issued a
* Flash Flood Watch for portions of northwest Iowa... northeast
Nebraska and southeast South Dakota... including the following
areas... in northwest Iowa... Buena Vista... Cherokee... Clay...
Dickinson... Ida... Lyon... Obrien... Osceola... Plymouth... Sioux
and Woodbury. In northeast Nebraska... Dakota and Dixon. In
southeast South Dakota... Clay... Lincoln... Union and Yankton.
* From 7 PM CDT this evening through Friday morning
* locally heavy rainfall of 1 to 3 inches is possible this
evening and overnight. Rainfall rates of 2 to 4 inches per
hour are also possible... dropping an inch of rain or more in 15
to 30 minutes.
* Areas that have received heavy rains in the past 3 to 10 days
could see flash flooding on creeks and streams with these
additional rains... and any urbanized areas that receive the
heaviest rainfall rates could see widespread flooding of streets
and underpasses.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.