Alert archive / Missouri / Flood Watches in 2024
Flood Watch 7, NWS St. Louis, MO
NWS St. Louis, MO issued this flood watch at Jul 3, 2024, 2:23 PM CDT for 20 counties in Missouri; 4 counties in Illinois. It took effect at Jul 3, 2024, 7:00 PM CDT. It was in force for 33 hr.
The area
The counties it named.
The facts
- Issued
- Jul 3, 2024, 2:23 PM CDT (19:23 UTC)
- In effect from
- Jul 3, 2024, 7:00 PM CDT
- Expired
- Jul 5, 2024, 3:47 AM CDT
- In force
- 33 hr
- Issued by
- NWS St. Louis, MO
- Flood severity
- None
All 24 counties
Monroe County, IL, Randolph County, IL, Saint Clair County, IL, Washington County, IL, 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, Madison County, MO, Moniteau County, MO, Montgomery County, MO, Osage 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), 48 km from the middle of the area, began a volume at 19:23 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.
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 7.4 hours before the alert went out and 286 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 12 J/kg
- Mixed-layer CIN
- -334 J/kg
- Mixed-layer LCL
- 872 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 310 m²/s²
- 0-3 km storm-relative helicity
- 192 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Jul 3, 1:19 PM CDT, 1 hour 4 minutes earlier.
Area forecast discussion, Jul 3, 1:19 PM CDT, 1 hour 4 minutes before
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</html>Hazardous weather outlook, Jul 3, 5:02 AM CDT, 9 hours 21 minutes before
Hazardous Weather Outlook National Weather Service St Louis MO 502 AM CDT Wed Jul 3 2024 ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027- 034>036-041-042-047>052-059>065-072>075-084-085-099-041015- Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL- Marion IL-Washington IL-Randolph IL-Adams IL-Brown IL-Pike IL- Calhoun IL-Jersey IL-Madison IL-Saint Clair IL-Monroe IL-Knox MO- Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO- Audrain MO-Moniteau MO-Cole MO-Osage MO-Callaway MO-Montgomery MO- Lincoln MO-Gasconade MO-Warren MO-Saint Charles MO-Franklin MO- Saint Louis MO-Saint Louis City MO-Jefferson MO-Crawford MO- Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO- Madison MO-Reynolds MO- 502 AM CDT Wed Jul 3 2024 This Hazardous Weather Outlook is for portions of eastern and central Missouri as well as west central and southwest Illinois. .DAY ONE...Today and tonight. There is a chance of thunderstorms over the region through tonight. A few of these storms could be severe mainly across southeast Missouri into southwest Illinois this afternoon and early this evening. Damaging winds will be the primary threat. Locally heavy rainfall will also be possible this afternoon and tonight. Heat index values today will climb to around 105 degrees over parts of southeast Missouri where a Heat Advisory is in effect. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. There is a chance of thunderstorms Thursday through Friday and again through Tuesday. A few of these storms could be severe on Thursday afternoon and evening over parts of central, east central, and southeast Missouri. Damaging winds and large hail will be the primary threats. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed this afternoon over parts of southeast Missouri and southwest Illinois. Britt
In the hours before
Local storm report, Jul 3, 10:45 AM CDT, 3 hours 38 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
1045 AM CDT Wed Jul 3 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0700 AM Rain 2 N Saint Charles 38.82N 90.51W
07/03/2024 E1.65 Inch St. Charles MO CO-OP Observer
Corrects previous rain report from 2 N Saint
Charles.
&&
CSLocal storm report, Jul 3, 10:46 AM CDT, 3 hours 37 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
1046 AM CDT Wed Jul 3 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0715 AM Rain 1 S Cottleville 38.74N 90.65W
07/03/2024 E2.51 Inch St. Charles MO CO-OP Observer
Corrects previous rain report from 1 S
Cottleville.
&&
CSLocal storm report, Jul 3, 10:52 AM CDT, 3 hours 31 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
1052 AM CDT Wed Jul 3 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0700 AM Rain 2.4 E Labadie 38.52N 90.81W
07/03/2024 E3.62 Inch Franklin MO Cocorahs
&&
CSLocal storm report, Jul 3, 10:54 AM CDT, 3 hours 29 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
1054 AM CDT Wed Jul 3 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1053 AM Rain 5 N Columbia 39.03N 92.33W
07/03/2024 E5.80 Inch Boone MO Public
&&
CSLocal storm report, Jul 3, 11:13 AM CDT, 3 hours 10 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
1113 AM CDT Wed Jul 3 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0700 AM Rain 1 NNE Troy 38.99N 90.97W
07/03/2024 E2.72 Inch Lincoln MO Cocorahs
&&
CSLocal storm report, Jul 3, 12:14 PM CDT, 2 hours 9 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
1214 PM CDT Wed Jul 3 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1200 PM Rain 2 WSW Weldon Spring 38.70N 90.68W
07/03/2024 M2.89 Inch St. Charles MO Official NWS Obs
Total rainfall at WFO LSX.
&&
PfahlerThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 2, 8:07 PM CDT | Severe Thunderstorm Warning | LSX | Knox, Shelby | 38 min |
| Jul 2, 8:24 PM CDT | Severe Thunderstorm Warning | LSX | Lewis | 51 min |
| Jul 2, 9:11 PM CDT | Severe Thunderstorm Warning | LSX | Shelby | 48 min |
| Jul 2, 10:58 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 62 min |
| Jul 2, 11:23 PM CDT | Areal Flood Advisory | LSX | Monroe, Shelby | 2 hr |
| Jul 2, 11:34 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Boone | 41 min |
| Jul 3, 1:55 AM CDT | Areal Flood Advisory | LSX | Audrain, Boone, Callaway | 30 min |
| Jul 3, 2:20 AM CDT | Heat Advisory | LSX | Iron, Madison, Reynolds | 15 hr |
| Jul 3, 2:25 AM CDT | Flash Flood Warning | LSX | Audrain, Boone, Callaway | 6 hr |
| Jul 3, 4:25 AM CDT | River Flood Warning | LSX | Boone | 17 hr |
| Jul 3, 4:44 AM CDT | Areal Flood Advisory | LSX | Audrain, Lincoln, Montgomery, Pike, Warren | 45 min |
| Jul 3, 5:29 AM CDT | Flash Flood Warning | LSX | Audrain, Callaway, Lincoln, Montgomery, Pike, Warren | 3 hr |
| Jul 3, 7:29 AM CDT | Flash Flood Warning | LSX | Franklin, Gasconade, Montgomery, Saint Charles, Saint Louis, Warren | 3 hr |
| Jul 3, 7:50 AM CDT | Flash Flood Warning | LSX | Osage | 3 hr |
| Jul 3, 10:33 AM CDT | River Flood Warning | LSX | Boone, Callaway, Cole, Moniteau | 6 days |
| Jul 3, 10:33 AM CDT | River Flood Warning | LSX | Franklin, Warren | 7 days |
| Jul 3, 10:33 AM CDT | River Flood Warning | LSX | Saint Charles, Saint Louis | 21 days |
| Jul 3, 11:42 AM CDT | River Flood Warning | LSX | Jefferson | 21 days |
| Jul 3, 11:42 AM CDT | River Flood Warning | LSX | Saint Charles | 21 days |
| Jul 3, 11:42 AM CDT | River Flood Warning | LSX | Saint Louis, City of Saint Louis | 21 days |
| Jul 3, 3:58 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Madison | 62 min |
| Jul 3, 4:28 PM CDT | Areal Flood Advisory | LSX | Iron, Reynolds | 3 hr |
| Jul 2, 8:54 PM CDT | Severe Thunderstorm Warning | LSX | Adams | 51 min |
| Jul 3, 6:57 PM CDT | River Flood Warning | LSX | Calhoun, Greene, Jersey | 23 days |
Nearby
Flood Watches in Missouri, 2024Flood Watches in Illinois, 2024Every flood watch in 2024
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.