Alert archive / Missouri / Flash Flood Warnings in 2021
Flash Flood Warning 8, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jun 25, 2021, 3:34 AM CDT for Boone County, Missouri. It was in force for 6 hr. 31 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 25, 2021, 3:34 AM CDT (08:34 UTC)
- Expired
- Jun 25, 2021, 9:30 AM CDT
- In force
- 6 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
County Boone County, MO
The radar
The St Louis radar (KLSX), 145 km from the middle of the area, began a volume at 08:34 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 25, 4:53 AM CDT | FLASH FLOOD | Columbia, MO | REPORTS OF VEHICLES STUCK IN FLOOD WATERS. |
| Jun 25, 5:05 AM CDT | FLASH FLOOD | 2 Sse Columbia, MO | HINKSON CREEK OUT OF BANKS AND FLASH FLOODING. APPROACHING APARTMENTS. |
| Jun 25, 5:20 AM CDT | HEAVY RAIN 5 | Columbia, MO | |
| Jun 25, 5:24 AM CDT | FLASH FLOOD | 1 W Columbia, MO | FLOOD WATERS IN RESIDENCE AT 100 BLOCK OF MEADOW LANE. |
| Jun 25, 6:05 AM CDT | FLASH FLOOD | 3 Nnw Columbia, MO | UPDATE: WATER RESCUE UNDERWAY. VEHICLE HAS BEEN SWEPT AWAY AND OCCUPANT IS NOW HOLDING ON TO A TREE IN THE FLOOD WATERS. THIS IS CREASY SPRINGS AND BEAR CREEK. |
| Jun 25, 6:16 AM CDT | FLASH FLOOD | 2 Ssw Columbia, MO | WATER FLOWING ACROSS ROADWAY NEAR OLD ROUTE K AND RESEARCH PARK DRIVE. AT LEAST SIX INCHES DEEP. |
| Jun 25, 6:21 AM CDT | FLASH FLOOD | 1 Ssw Columbia, MO | FLASH FLOODING IS CAUSING THE ROAD CLOSURE OF PROVIDENCE ROAD BETWEEN STADIUM AND GREEN MEADOWS. FLOOD WATERS ARE OVER ROAD NEAR REACTOR FIELD. |
| Jun 25, 6:29 AM CDT | FLASH FLOOD | 3 Sw Columbia, MO | NUMEROUS REPORTS OF WATER OVER ROADS IN THIS AREA INCLUDING FORUM, KATY PARKWAY, AND KATY LANE. |
| Jun 25, 6:32 AM CDT | FLASH FLOOD | 2 Ssw Columbia, MO | WATER RESCUE: NEAR MICK DEAVER AND PROVIDENCE, CAR IS TRAPPED IN FLOOD WATERS. |
| Jun 25, 7:00 AM CDT | HEAVY RAIN 5.08 | 2 Se Columbia, MO | COCORAHS STATION MO-BN-42 COLUMBIA 2.3 SE. |
| Jun 25, 7:00 AM CDT | HEAVY RAIN 5.26 | 2 Ne Columbia, MO | COCORAHS STATION MO-BN-58 COLUMBIA 2.2 NE. |
| Jun 25, 7:00 AM CDT | HEAVY RAIN 5.35 | 2 Se Columbia, MO | COCORAHS STATION MO-BN-5 COLUMBIA 2.4 S. |
| Jun 25, 7:00 AM CDT | HEAVY RAIN 5.54 | 1 Sse Columbia, MO | COCORAHS STATION MO-BN-11 COLUMBIA 0.9 SSE. |
| Jun 25, 7:00 AM CDT | HEAVY RAIN 5.54 | 1 Sse Columbia, MO | CO-OP OBSERVER STATION UMCM7 0.9 SE COLUMBIA. |
| Jun 25, 7:00 AM CDT | HEAVY RAIN 6.1 | 2 W Columbia, MO | COCORAHS STATION MO-BN-54 COLUMBIA 1.6 W. |
| Jun 25, 7:00 AM CDT | HEAVY RAIN 6.1 | 2 W Columbia, MO | COCORAHS STATION MO-BN-82 COLUMBIA 2.1 W. |
| Jun 25, 7:00 AM CDT | HEAVY RAIN 6.23 | 1 Nw Columbia, MO | COCORAHS STATION MO-FSA-019 COLUMBIA 1.3 NW. |
| Jun 25, 7:00 AM CDT | HEAVY RAIN 6.27 | 2 W Columbia, MO | COCORAHS STATION MO-BN-36 COLUMBIA 2.0 W. |
| Jun 25, 7:30 AM CDT | HEAVY RAIN 4.12 | 4 Se Columbia, MO | MESONET STATION MOA16 4 SE COLUMBIA. |
| Jun 25, 7:35 AM CDT | HEAVY RAIN 5.38 | 1 Sse Columbia, MO | MESONET STATION MOA02 COLUMBIA. |
| Jun 25, 7:45 AM CDT | HEAVY RAIN 4.16 | 4 Se Columbia, MO | MESONET STATION MOA16 4 SE COLUMBIA. |
| Jun 25, 7:45 AM CDT | HEAVY RAIN 6.54 | 2 Wsw Columbia, MO | MESONET STATION DW0359 COLUMBIA. |
| Jun 25, 7:50 AM CDT | HEAVY RAIN 5.43 | 1 Sse Columbia, MO | MESONET STATION MOA02 COLUMBIA. |
| Jun 25, 8:00 AM CDT | HEAVY RAIN 4.19 | 4 Se Columbia, MO | MESONET STATION MOA16 4 SE COLUMBIA. |
| Jun 25, 8:00 AM CDT | HEAVY RAIN 6.29 | 2 W Columbia, MO | COCORAHS STATION MO-BN-39 COLUMBIA 1.6 W. |
| Jun 25, 8:01 AM CDT | HEAVY RAIN 6.56 | 2 Wsw Columbia, MO | MESONET STATION DW0359 COLUMBIA. |
| Jun 25, 8:05 AM CDT | HEAVY RAIN 5.47 | 1 Sse Columbia, MO | MESONET STATION MOA02 COLUMBIA. |
| Jun 25, 8:10 AM CDT | FLASH FLOOD | 3 Sw Columbia, MO | TIM SCHMIDT (KOMU) REPORTS A LEVEE BEING OVERTOPPED OR BREACHED NEAR THE WILSON FITNESS CENTER AND MISSOURI ATHLETIC CLUB NEAR HINKSON CREEK AND FORUM BLVD. |
| Jun 25, 8:15 AM CDT | HEAVY RAIN 4.2 | 4 Se Columbia, MO | MESONET STATION MOA16 4 SE COLUMBIA. |
| Jun 25, 8:15 AM CDT | HEAVY RAIN 5.47 | 1 Sse Columbia, MO | MESONET STATION MOA02 COLUMBIA. |
| Jun 25, 8:15 AM CDT | HEAVY RAIN 6.58 | 2 Wsw Columbia, MO | MESONET STATION DW0359 COLUMBIA. |
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, 8.6 hours before the alert went out and 263 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
- 2954 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 1147 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 74 m²/s²
- 0-3 km storm-relative helicity
- 324 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
729
WGUS53 KLSX 250834
FFWLSX
MOC019-251430-
/O.NEW.KLSX.FF.W.0008.210625T0834Z-210625T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service St Louis MO
334 AM CDT Fri Jun 25 2021
The National Weather Service in St Louis has issued a
* Flash Flood Warning for...
Central Boone County in central Missouri...
* Until 930 AM CDT.
* At 334 AM CDT, local law enforcement reported thunderstorms
producing heavy rain across the warned area. Between 2 and 3
inches of rain have fallen. Additional rainfall amounts of 1 to 2
inches are possible in the warned 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.
This includes the following State Parks...
Jewell Cemetery Historic Site.
This includes the following highways...
Interstate 70 in Missouri between exits 124 and 128.
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.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 3899 9237 3899 9226 3891 9225 3891 9237
FLASH FLOOD...OBSERVED
$$
Walsh1 follow-up statement
270
WGUS73 KLSX 250944
FFSLSX
Flash Flood Statement
National Weather Service St Louis MO
444 AM CDT Fri Jun 25 2021
MOC019-251430-
/O.CON.KLSX.FF.W.0008.000000T0000Z-210625T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Boone MO-
444 AM CDT Fri Jun 25 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 930 AM CDT THIS
MORNING FOR CENTRAL BOONE COUNTY...
At 444 AM CDT, emergency management reported thunderstorms producing
heavy rain across the warned area. Between 2 and 4 inches of rain
have fallen. Additional rainfall amounts of 1 to 2 inches are
possible in the warned area. Flash flooding is already occurring.
HAZARD...Life threatening flash flooding. Thunderstorms producing
flash flooding.
SOURCE...Emergency management reported.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.
Some locations that will experience flash flooding include...
Columbia.
This includes the following State Parks...
Jewell Cemetery Historic Site.
This includes the following highways...
Interstate 70 in Missouri between exits 125 and 128.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 3899 9237 3899 9226 3891 9225 3891 9237
FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
WalshThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 24, 10:57 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Shelby | 48 min |
| Jun 24, 11:03 PM CDT | Tornado Warning | LSX | Monroe, Shelby | 42 min |
| Jun 24, 11:29 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Lewis, Marion, Monroe, Pike, Ralls and 1 more | 46 min |
| Jun 24, 11:32 PM CDT | Tornado Warning | LSX | Lewis | 28 min |
| Jun 24, 11:35 PM CDT | Tornado Warning | LSX | Audrain, Monroe, Ralls | 40 min |
| Jun 24, 11:40 PM CDT | Tornado Warning | LSX | Marion, Monroe, Ralls, Shelby | 38 min |
| Jun 25, 12:09 AM CDT | Tornado Warning | LSX | Audrain, Pike, Ralls | 51 min |
| Jun 25, 12:17 AM CDT | Severe Thunderstorm Warning | LSX | Audrain, Lincoln, Montgomery, Pike, Ralls | 43 min |
| Jun 25, 12:57 AM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Pike | 48 min |
| Jun 25, 1:27 AM CDT | River Flood Warning | LSX | Boone | 33 hr |
| Jun 25, 1:54 AM CDT | Areal Flood Advisory | LSX | Montgomery | 3 hr |
| Jun 25, 2:21 AM CDT | Areal Flood Advisory | LSX | Audrain, Boone, Callaway | 106 min |
| Jun 25, 3:07 AM CDT | Areal Flood Advisory | LSX | Boone, Callaway, Cole, Moniteau | 82 min |
| Jun 25, 4:04 AM CDT | Flash Flood Warning | LSX | Audrain, Boone, Callaway | 6 hr |
| Jun 25, 4:26 AM CDT | Flash Flood Warning | LSX | Boone, Callaway, Cole, Moniteau | 6 hr |
| Jun 25, 4:28 AM CDT | Flash Flood Warning | LSX | Callaway, Lincoln, Montgomery, Osage, Warren | 6 hr |
| Jun 25, 7:48 AM CDT | River Flood Warning | LSX | Lincoln | 62 hr |
| Jun 25, 8:25 AM CDT | Areal Flood Warning | LSX | Audrain, Boone, Callaway, Cole, Moniteau | 9 hr |
| Jun 25, 10:06 AM CDT | River Flood Warning | LSX | Franklin, Warren | 9 days |
| Jun 25, 10:06 AM CDT | River Flood Warning | LSX | Saint Charles, Saint Louis | 21 days |
| Jun 25, 10:06 AM CDT | River Flood Warning | LSX | Boone, Callaway, Cole, Moniteau | 8 days |
| Jun 25, 10:06 AM CDT | River Flood Warning | LSX | Callaway, Osage | 21 days |
| Jun 25, 10:06 AM CDT | River Flood Warning | LSX | Gasconade, Montgomery | 10 days |
| Jun 25, 4:59 PM CDT | Severe Thunderstorm Warning | LSX | Callaway, Osage | 20 min |
| Jun 25, 5:01 PM CDT | Severe Thunderstorm Warning | LSX | Boone, Moniteau | 44 min |
| Jun 25, 5:05 PM CDT | River Flood Warning | LSX | Cole, Osage | 9 days |
| Jun 25, 5:42 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Boone, Callaway | 22 min |
| Jun 25, 6:07 PM CDT | River Flood Warning | LSX | Lincoln | 3 days |
| Jun 25, 6:36 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Saint Charles, Warren | 39 min |
| Jun 25, 6:43 PM CDT | Flash Flood Warning | LSX | Audrain, Boone, Callaway | 6 hr |
| Jun 25, 6:48 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Montgomery, Warren | 42 min |
| Jun 25, 6:55 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Boone, Callaway | 19 min |
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.