Flood Potential Outlook
Issued by NWS Central Illinois
FGUS73 KILX 251039
National Weather Service Lincoln IL
539 AM CDT Tue Apr 25 2017
...AREAS OF HEAVY RAIN ON WEDNESDAY AND AGAIN THIS WEEKEND...
A wet weather pattern will set up through mid week, and persist
into the upcoming weekend.
As a cold front approaches from the west, showers and
thunderstorms will begin spreading into areas west of I-55 later
tonight, and overspread areas to the east on Wednesday, before
exiting the region on Thursday. The heaviest rain from this system
is expected to be from about I-55 westward, where amounts of 1 to
1.5 inches are possible by Thursday morning. Over east central and
southeast Illinois, rainfall of a half to 1 inch is likely.
This weekend, a slow moving storm system will combine with copious
moisture in the atmosphere, to produce additional heavy rainfall.
Much of this is expected between late Friday night and Sunday
morning. While it is too early to give specifics, there are
indications that a few inches of rain are possible during the
period over portions of central and southeast Illinois.
Runoff from this heavy rain will cause rises on area rivers and
streams, and may eventually lead to flooding. Continue to monitor
the latest forecasts, as the rainfall timing and amounts will be
adjusted as the heavy rain events approach.