Alert archive / Missouri / Flash Flood Warnings in 2021
Flash Flood Warning 19, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jun 26, 2021, 12:43 AM CDT for 11 counties in Missouri. It was in force for 6 hr. 5 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 26, 2021, 12:43 AM CDT (05:43 UTC)
- Expired
- Jun 26, 2021, 6:30 AM CDT
- In force
- 6 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
Counties Audrain County, MO, Boone County, MO, Callaway County, MO, Cole County, MO, Gasconade County, MO, Moniteau County, MO, Montgomery County, MO, Osage County, MO, Pike County, MO, Ralls County, MO, Warren County, MO
The radar
The St Louis radar (KLSX), 108 km from the middle of the area, began a volume at 05:46 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 was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 26, 2:23 AM CDT | FLOOD | Jefferson City, MO | WAVERLY, VIRGINIA, AND KANSAS STREETS NEAR WASHINGTON PARK ICE ARENA ARE FLOODED AND IMPASSABLE. |
| Jun 26, 2:23 AM CDT | FLASH FLOOD | 1 Ne Jefferson City, MO | WATER HAS REACHED THE BOTTOM OF WEST DUNKLIN BRIDGE, DEBRIS IS LIMITING WATER FLOW. WALNUT AND WEST MILLER ROADS ALONG HWY 63 ARE FLOODED AND IMPASSABLE. |
| Jun 26, 2:56 AM CDT | FLOOD | Mcbaine, MO | VEHICLE STUCK IN FLOOD WATER AT ROUTE K AND THE MISSOURI KATY TRAIL. WATER RESCUE ONGOING. |
| Jun 26, 3:13 AM CDT | FLASH FLOOD | 3 Ne Mcbaine, MO | WATER FLOODING RESIDENCE, WATER RESCUE ONGOING FOR TWO OCCUPANTS AND DOG. |
| Jun 26, 6:19 AM CDT | HEAVY RAIN 6.3 | 7 Sse Chamois, MO | 48 HOUR TOTAL ACCUMULATION. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 5.7 hours before the alert went out and 290 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
- 1507 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 1381 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 110 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 2.0
The text
As transmitted.
974
WGUS53 KLSX 260543
FFWLSX
MOC007-019-027-051-073-135-139-151-163-173-219-261130-
/O.NEW.KLSX.FF.W.0019.210626T0543Z-210626T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service St Louis MO
1243 AM CDT Sat Jun 26 2021
The National Weather Service in St Louis has issued a
* Flash Flood Warning for...
Audrain County in central Missouri...
Boone County in central Missouri...
Callaway County in central Missouri...
Central Cole County in central Missouri...
Northeastern Moniteau County in central Missouri...
Northeastern Osage County in central Missouri...
Northwestern Gasconade County in east central Missouri...
Montgomery County in east central Missouri...
West Central Warren County in east central Missouri...
Western Pike County in northeastern Missouri...
South Central Ralls County in northeastern Missouri...
* Until 630 AM CDT.
* At 1243 AM CDT, Local law enforcement reported several closed
rounds from heavy rain tonight across the warned area. Additional
rainfall amounts of 1 to 2 inches are possible in the warned area
as additional showers and thunderstorms move into the area. Flash
flooding is already occurring.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Law enforcement reported.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Columbia, Jefferson City, Fulton, Mexico, Bowling Green,
Centralia, Vandalia, Ashland, Holts Summit, Montgomery City,
Hermann, Wellsville, Columbia Regional Airport, Wardsville,
Hallsville, St. Martins, Auxvasse, Taos, Sturgeon and New Florence.
This includes the following State Parks...
Rock Bridge State Park, Deutschheim Historic Site, Finger Lakes
State Park, Clarks Hill/Norton Historic Site, Jewell Cemetery
Historic Site, Jefferson Landing Historic Site and Graham Cave State
Park.
This includes the following highways...
Interstate 70 in Missouri between exits 117 and 179.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 3900 9256 3925 9243 3923 9180 3937 9162
3953 9109 3915 9119 3914 9126 3909 9126
3859 9149 3848 9203 3855 9246 3880 9239
FLASH FLOOD...OBSERVED
$$
Britt1 follow-up statement
992
WGUS73 KLSX 260757
FFSLSX
Flash Flood Statement
National Weather Service St Louis MO
257 AM CDT Sat Jun 26 2021
MOC007-019-027-051-073-135-139-151-163-173-219-261130-
/O.CON.KLSX.FF.W.0019.000000T0000Z-210626T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Audrain MO-Boone MO-Callaway MO-Cole MO-Gasconade MO-Moniteau MO-
Montgomery MO-Osage MO-Pike MO-Ralls MO-Warren MO-
257 AM CDT Sat Jun 26 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 AM CDT THIS
MORNING FOR AUDRAIN, BOONE, CALLAWAY, CENTRAL COLE, NORTHEASTERN
MONITEAU AND NORTHEASTERN OSAGE COUNTIES IN CENTRAL MISSOURI,
NORTHWESTERN GASCONADE, MONTGOMERY AND WEST CENTRAL WARREN COUNTIES
IN EAST CENTRAL MISSOURI AND WESTERN PIKE AND SOUTH CENTRAL RALLS
COUNTIES IN NORTHEASTERN MISSOURI...
At 257 AM CDT, Doppler radar indicated that another 1 to 2 inches of
rain has fallen over parts of the warned area since midnight. The
Missouri Department of the Transportation reports multiple roads
remain closed because of flooding.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Columbia, Jefferson City, Fulton, Mexico, Bowling Green,
Centralia, Vandalia, Ashland, Holts Summit, Montgomery City,
Hermann, Wellsville, Columbia Regional Airport, Wardsville,
Hallsville, St. Martins, Auxvasse, Taos, Sturgeon and New Florence.
This includes the following State Parks...
Rock Bridge State Park, Deutschheim Historic Site, Finger Lakes
State Park, Clarks Hill/Norton Historic Site, Jewell Cemetery
Historic Site, Jefferson Landing Historic Site and Graham Cave State
Park.
This includes the following highways...
Interstate 70 in Missouri between exits 117 and 179.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 3900 9256 3925 9243 3923 9180 3937 9162
3953 9109 3915 9119 3914 9126 3909 9126
3859 9149 3848 9203 3855 9246 3880 9239
FLASH FLOOD...RADAR INDICATED
$$
BrittThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 7:15 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 45 min |
| Jun 25, 7:20 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Warren | 40 min |
| Jun 25, 7:32 PM CDT | Flash Flood Warning | LSX | Marion, Monroe, Pike, Ralls | 6 hr |
| Jun 25, 7:50 PM CDT | Flash Flood Warning | LSX | Lincoln, Montgomery, Saint Charles, Warren | 6 hr |
| Jun 25, 8:00 PM CDT | Flash Flood Warning | LSX | Audrain, Montgomery, Pike, Ralls | 6 hr |
| Jun 25, 8:11 PM CDT | Flash Flood Warning | LSX | Boone, Callaway, Cole, Montgomery, Osage, Warren | 4 hr |
| Jun 25, 9:29 PM CDT | Flash Flood Warning | LSX | Lincoln, Saint Charles | 6 hr |
| Jun 25, 9:43 PM CDT | Flash Flood Warning | LSX | Lincoln, Montgomery, Saint Charles, Warren | 4 hr |
| Jun 25, 11:32 PM CDT | River Flood Warning | LSX | Marion | 11 hr |
| Jun 26, 12:55 AM CDT | River Flood Warning | LSX | Cole | 35 hr |
| Jun 26, 1:25 AM CDT | Areal Flood Warning | LSX | Marion, Monroe, Pike, Ralls | 14 hr |
| Jun 26, 1:48 AM CDT | Flash Flood Warning | LSX | Franklin, Gasconade, Lincoln, Montgomery, Saint Charles, Warren | 6 hr |
| Jun 26, 3:29 AM CDT | Areal Flood Warning | LSX | Lincoln, Saint Charles | 9 hr |
| Jun 26, 6:25 AM CDT | Areal Flood Warning | LSX | Audrain, Boone, Callaway, Cole, Gasconade, Moniteau and 4 more | 11 hr |
| Jun 26, 7:34 AM CDT | Areal Flood Warning | LSX | Franklin, Gasconade, Lincoln, Montgomery, Saint Charles, Warren | 8 hr |
| Jun 26, 11:42 AM CDT | River Flood Warning | LSX | Jefferson, Saint Louis | 8 days |
| Jun 26, 11:44 AM CDT | River Flood Warning | LSX | Saint Charles | 7 days |
| Jun 26, 12:13 PM CDT | River Flood Warning | LSX | Perry, Sainte Genevieve | 9 days |
| Jun 26, 1:37 PM CDT | Tornado Warning | LSX | Lincoln, Pike | 38 min |
| Jun 26, 3:22 PM CDT | Areal Flood Warning | LSX | Lincoln | 2 hr |
Nearby
Flash Flood Warnings in Missouri, 2021Every flash flood warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.