Alert archive / Missouri / Flood Watches in 2026
Flood Watch 10, NWS St. Louis, MO
NWS St. Louis, MO issued this flood watch at Jul 9, 2026, 11:03 AM CDT for 13 counties in Missouri; Monroe County, Randolph County, Illinois. It took effect at Jul 9, 2026, 4:00 PM CDT. It was in force for 51 hr.
The area
The counties it named.
The facts
- Issued
- Jul 9, 2026, 11:03 AM CDT (16:03 UTC)
- In effect from
- Jul 9, 2026, 4:00 PM CDT
- Expired
- Jul 11, 2026, 7:00 PM CDT
- In force
- 51 hr
- Issued by
- NWS St. Louis, MO
- Flood severity
- None
Counties Monroe County, IL, Randolph County, IL, Cole County, MO, Crawford County, MO, Franklin County, MO, Gasconade County, MO, Iron County, MO, Jefferson County, MO, Madison County, MO, Moniteau County, MO, Osage County, MO, Reynolds County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Washington County, MO
The radar
The St Louis radar (KLSX), 75 km from the middle of the area, began a volume at 16:06 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, 4.1 hours before the alert went out and 309 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
- 381 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 1137 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 62 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
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 9, 10:40 AM CDT, 23 minutes earlier.
Area forecast discussion, Jul 9, 10:40 AM CDT, 23 minutes before
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</html>The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 3:00 PM CDT | Severe Thunderstorm Warning | LSX | Montgomery | 45 min |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.