A thin, but the strong line of thunderstorms is moving from west to east and is predicted between 1:30 p.m. and 3:00 p.m. within the northwest suburbs of Chicago. Severe Thunderstorm Warnings have already been issued altogether of Lake County and southeast McHenry. Frequent cloud-to-ground lightning and severe damaging winds are possible with thunderstorms.
A SEVERE THUNDERSTORM WARNING was issued at 1:41 p.m. Thunder is already rumbling north and west of Arlington Heights at 1:30 p.m. The radar image heading toward Arlington Heights has strengthened since the SEVERE THUNDERSTORM WATCH was issued about a half-hour ago.
The National Weather Service reported at 1:03 p. m. that the office received reports of quarter to ball size hail with this storm when it had been in northwestern McHenry County. Weather Radar) shows strong thunderstorms during a line from Central Michigan to Western Illinois just passing the McHenry, Kane, Lake, and Cook County corner approaching northwest Cook County.