The National Weather Service issued a tornado watch for Kane County and other areas until 11 p.m. Wednesday and a flash flood watch had been issued.
Amy Seeley, a meteorologist with the National Weather Service’s Romeoville office, said a watch means the conditions are favorable for a tornado to occur, not that one has occurred or been seen.
But as of early evening Wednesday, all reports of tornado sightings were discounted, Seeley said.
On Wednesday, the weather service issued a hazardous weather watch for the northern Illinois region including Kane County.
A flood warning and severe thunderstorms with possible tornadoes from 6 through 10 p.m., possibly extending to 11 p.m., also was predicted.
“We have a low pressure system that is moving off into northern Illinois, a warm and muggy air mass that is very unstable,” Seeley said “We are in a flood watch right now, to be followed by showers and thunderstorms developing, large hail and damaging winds.”
Seeley said residents of Kane and neighboring counties through Indiana will be affected by this weather system, which also affects far eastern Iowa, northern Indiana and northwest Ohio.
According to the weather service’s online advisory, numerous severe thunderstorms could produce tornadoes, damaging winds in excess of 75 miles an hour, isolated hail possibly to the size of baseballs and very heavy rainfall that could cause flash flooding.
The weather service’s forecast for the rest of the week includes a 30 percent chance of more thunderstorms today, clear on Friday with more rainfall on Friday night and more thunderstorms likely on Saturday and Sunday.
Kane County Office of Emergency Management Director Don Bryant said the county was experiencing a lot of rain and high winds, but no real reports of damage.
Bryant said there also was a report of dime-sized hail in Aurora near Copley Hospital.
Severe weather driving tips:
ˇ Do not drive through flooded areas
ˇ Be aware of vehicles around you
ˇ High winds are most problematic for drivers of trucks, buses, recreational vehicles, campers and drivers who are towing trailers
ˇ Turn on your headlights (low beams) and slow down
ˇ Allow extra distance for braking
ˇ If your car stalls in high water, do not attempt to push it out; seek higher ground
For a list of road closures, visit www.dot.il.gov/road/roadClosures.htm. For real-time updates on today’s storms, visit http://Ready.Illinois.gov.