National Weather Service Chicago IL 238 PM CDT Sun Sep 2 2018
…Thunderstorms This Evening and Tonight…
.Scattered thunderstorms are expected to develop this afternoon
and expand in coverage across far northern Illinois this evening.
A very moist airmass will allow for efficient and heavy rainfall
rates. Thunderstorms may repeatedly move across some areas, many
of which saw very heavy rainfall last night, resulting in flash
Including the cities of Rockford, Belvidere, Woodstock, Waukegan,
238 PM CDT Sun Sep 2 2018
…FLASH FLOOD WATCH IN EFFECT FROM 7 PM CDT THIS EVENING THROUGH
The National Weather Service in Chicago has issued a
* Flash Flood Watch for portions of north central Illinois and
northeast Illinois, including the following areas, in north
central Illinois, Boone, Ogle, and Winnebago. In northeast
Illinois, Lake IL and McHenry.
* From 7 PM CDT this evening through Monday morning
* Repeated rounds of thunderstorms producing very heavy rainfall
may result in flash flooding.
* Expect rises on area rivers and streams. Flooding of low lying
areas and roadside ditches is possible.
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.