Alert archive / Missouri / Flash Flood Watches in 2020
Flash Flood Watch 10, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood watch at Aug 8, 2020, 2:18 PM CDT for 22 counties in Missouri; 13 counties in Illinois. It took effect at Aug 8, 2020, 10:00 PM CDT. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- Aug 8, 2020, 2:18 PM CDT (19:18 UTC)
- In effect from
- Aug 8, 2020, 10:00 PM CDT
- Expired
- Aug 9, 2020, 10:00 AM CDT
- In force
- 12 hr
- Issued by
- NWS St. Louis, MO
- Flood severity
- None
All 35 counties
Bond County, IL, Calhoun County, IL, Clinton County, IL, Greene County, IL, Jersey County, IL, Macoupin County, IL, Madison County, IL, Monroe County, IL, Montgomery County, IL, Pike County, IL, Randolph County, IL, Saint Clair County, IL, Washington County, IL, Audrain County, MO, Callaway County, MO, City of Saint Louis, MO, Crawford County, MO, Franklin County, MO, Gasconade County, MO, Iron County, MO, Jefferson County, MO, Lincoln County, MO, Madison 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, Warren County, MO, Washington County, MO
The radar
The St Louis radar (KLSX), 8 km from the middle of the area, began a volume at 19:20 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 flash 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 flash flood watch went out at Aug 8, 12:25 PM CDT, 1 hour 53 minutes earlier.
Area forecast discussion, Aug 8, 12:25 PM CDT, 1 hour 53 minutes before
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</html>Hazardous weather outlook, Aug 8, 4:38 AM CDT, 9 hours 40 minutes before
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</html>Nearby
Flash Flood Watches in Missouri, 2020Flash Flood Watches in Illinois, 2020Every flash flood watch in 2020
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.