Alert archive / Missouri / Flood Watches in 2026
Flood Watch 8, NWS St. Louis, MO
NWS St. Louis, MO issued this flood watch at Jun 20, 2026, 1:28 AM CDT for 29 counties in Missouri; 17 counties in Illinois. It took effect at Jun 21, 2026, 1:00 AM CDT. It was in force for 21 hr.
The area
The counties it named.
The facts
- Issued
- Jun 20, 2026, 1:28 AM CDT (06:28 UTC)
- In effect from
- Jun 21, 2026, 1:00 AM CDT
- Expired
- Jun 21, 2026, 10:09 PM CDT
- In force
- 21 hr
- Issued by
- NWS St. Louis, MO
- Flood severity
- None
All 46 counties
Adams County, IL, Bond County, IL, Brown County, IL, Calhoun County, IL, Clinton County, IL, Fayette County, IL, Greene County, IL, Jersey County, IL, Macoupin County, IL, Madison County, IL, Marion County, IL, Monroe County, IL, Montgomery County, IL, Pike County, IL, Randolph County, IL, Saint Clair County, IL, Washington County, IL, Audrain County, MO, Boone County, MO, Callaway County, MO, City of Saint Louis, MO, Cole County, MO, Crawford County, MO, Franklin County, MO, Gasconade County, MO, Iron County, MO, Jefferson County, MO, Knox County, MO, Lewis County, MO, Lincoln County, MO, Madison County, MO, Marion County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Osage County, MO, Pike County, MO, Ralls County, MO, Reynolds County, MO, Saint Charles County, MO, Saint Francois County, MO, Saint Louis County, MO, Sainte Genevieve County, MO, Shelby County, MO, Warren County, MO, Washington County, MO
The radar
The St Louis radar (KLSX), 18 km from the middle of the area, began a volume at 06:33 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What forecasters said that day
The local office's own words before this flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS St. Louis, MO wrote its last area forecast discussion before this flood watch went out at Jun 20, 12:16 AM CDT, 1 hour 12 minutes earlier.
Area forecast discussion, Jun 20, 12:16 AM CDT, 1 hour 12 minutes before
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Local storm report, Jun 19, 8:32 PM CDT, 4 hours 56 minutes before
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</html>Local storm report, Jun 19, 8:49 PM CDT, 4 hours 39 minutes before
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</html>Local storm report, Jun 19, 8:50 PM CDT, 4 hours 38 minutes before
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</html>Nearby
Flood Watches in Missouri, 2026Flood Watches in Illinois, 2026Every flood watch in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.