Rainfall totals through Monday evening have already reached close to an
inch in Rockford and over an inch in Sterling, with an additional
quarter of an inch (possibly higher) expected through midnight. Copious
amounts of moisture have been streaming northern Illinois and southern
Wisconsin thanks to a very active sub-tropical jet, which even caused a
few rumbles of thunder before the sun came up Monday.
As low pressure moves into northwest and
northern Illinois between 8pm
and 9pm, the rain will become a little more scattered, and less
widespread, but still falling area wide. Most of the rain should be
moving east around midnight, with only a few lingering showers through
Tuesday morning. Drier air following a cold front later Monday night
will help bring an end to most of the rain.
The moderate rain has caused quite a bit of standing and ponding water
on the roadways,
Flood Watch
has been issued for the Sugar River near Brodhead, WI for Tuesday
morning, lasting through Thursday as the river is forecast to rise into
minor flood stage either late Monday night or early Tuesday morning.
ditches and backyards Monday, which is expected to
continue into Tuesday morning. Soil moisture across much of northern
Illinois and southern Wisconsin is within the 95-99 percentile, which
means some of the rain that has come down has likely runoff into local
creeks, streams and rivers. A
The Pecatonica and Rock Rivers are currently below action stage and not
experiencing any flooding as of yet, but are forecast to rise into
action stage at various locations such as Freeport, Shirland, Latham Park and possibly Byron
later this week. Those living along the river should continue to
monitor river stages. A few showers are possible late Tuesday night
into Wednesday morning, but are not expected to be as much as what we've
had this afternoon and evening.
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