The NWS has issued a SEVERE THUNDERSTORM WATCH for the City of St. Louis until 7:00 a.m. 7/23/17 #stlwx 
The dangerous heat and humidity will continue into Sunday for
areas near and south of Interstate 70. Please refer to the
Excessive Heat Warning for additional information.
Isolated strong to severe thunderstorms are possible Sunday
afternoon and night across west central and southwest Illinois
and into southeast Missouri. Gusty winds and hail are the primary
threats.
Dangerous heat index values near 105 degrees is expected to return
to much of the area on Wednesday.
Instructions:
Pay attention to NOAA weather radio, local media outlets and other weather applications for up to the minute details on this storm.
Address/Location
City of St. Louis Emergency Management
1915 Olive St
St. Louis, MO 63103
Contact
Emergency: 9-1-1