Alert archive / Missouri / Flash Flood Watches in 2019

Flash Flood Watch 1, NWS St. Louis, MO

April 29, 201929 counties in Missouri; 17 counties in Illinois

NWS St. Louis, MO issued this flash flood watch at Apr 29, 2019, 3:28 PM CDT for 29 counties in Missouri; 17 counties in Illinois. It took effect at Apr 30, 2019, 1:00 AM CDT. It was in force for 66 hr.

The area

The counties it named.

The facts

Issued: Apr 29, 2019, 3:28 PM CDT (20:28 UTC)
In effect from: Apr 30, 2019, 1:00 AM CDT
Expired: May 2, 2019, 7:00 PM CDT
In force: 66 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 20:28 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 Apr 29, 1:06 PM CDT, 2 hours 22 minutes earlier.

Area forecast discussion, Apr 29, 1:06 PM CDT, 2 hours 22 minutes before

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Hazardous weather outlook, Apr 29, 4:10 AM CDT, 11 hours 18 minutes before

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The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 28, 7:04 PM CDT	Special Weather Statement	LSX	Audrain	41 min
Apr 28, 9:22 PM CDT	Special Weather Statement	LSX	Boone	38 min
Apr 28, 9:29 PM CDT	Areal Flood Advisory	LSX	Audrain, Montgomery	3 hr
Apr 28, 10:05 PM CDT	Special Weather Statement	LSX	Audrain, Monroe	55 min

Nearby

Flash Flood Watches in Missouri, 2019 Flash Flood Watches in Illinois, 2019 Every flash flood watch in 2019

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.