Alert archive / Missouri / Flash Flood Warnings in 2021
Flash Flood Warning 47, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Dec 5, 2021, 9:25 PM CST for Reynolds County, Missouri. It was in force for 5 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Dec 5, 2021, 9:25 PM CST (03:25 UTC)
- Expired
- Dec 6, 2021, 2:30 AM CST
- In force
- 5 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
County Reynolds County, MO
The radar
The St Louis radar (KLSX), 160 km from the middle of the area, began a volume at 03:27 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
Springfield, MO (KSGF), launched 00:00Z, 3.4 hours before the alert went out and 255 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
- 125 J/kg
- Mixed-layer CIN
- -146 J/kg
- Mixed-layer LCL
- 1105 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 286 m²/s²
- 0-3 km storm-relative helicity
- 462 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted.
782
WGUS53 KLSX 060325
FFWLSX
MOC179-060830-
/O.NEW.KLSX.FF.W.0047.211206T0325Z-211206T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service St Louis MO
925 PM CST Sun Dec 5 2021
The National Weather Service in St Louis has issued a
* Flash Flood Warning for...
Central Reynolds County in southeastern Missouri...
* Until 230 AM CST.
* At 925 PM CST, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 3 inches of rain
have fallen. Flash flooding is ongoing or expected to begin
shortly.
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...
Ellington and Redford.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3735 9115 3746 9078 3740 9077 3737 9077
3731 9075 3729 9075 3717 9103 3716 9107
3718 9107 3718 9109 3720 9109 3720 9111
FLASH FLOOD...RADAR INDICATED
$$
Carney2 follow-up statements
498
WGUS73 KLSX 060451
FFSLSX
Flash Flood Statement
National Weather Service St Louis MO
1051 PM CST Sun Dec 5 2021
MOC179-060830-
/O.CON.KLSX.FF.W.0047.000000T0000Z-211206T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Reynolds MO-
1051 PM CST Sun Dec 5 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 230 AM CST MONDAY FOR
CENTRAL REYNOLDS COUNTY...
At 1051 PM CST, Doppler radar indicated that the heavy rain
producing thunderstorms have ended, however runoff from these storms
will likely continue to produce flash flooding for the next few
hours. Between 2 and 3 inches of rain have fallen, and radar is
indicating that light to moderate rain is continuing to fall across
the warning area. Flash flooding continues to be likely.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Ellington and Redford.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3735 9115 3746 9078 3740 9077 3737 9077
3731 9075 3729 9075 3717 9103 3716 9107
3718 9107 3718 9109 3720 9109 3720 9111
FLASH FLOOD...RADAR INDICATED
$$
Carney163
WGUS73 KLSX 060822
FFSLSX
Flash Flood Statement
National Weather Service St Louis MO
222 AM CST Mon Dec 6 2021
MOC179-060832-
/O.EXP.KLSX.FF.W.0047.000000T0000Z-211206T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Reynolds MO-
222 AM CST Mon Dec 6 2021
...FLASH FLOOD WARNING WILL EXPIRE AT 230 AM CST EARLY THIS MORNING
FOR CENTRAL REYNOLDS COUNTY...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed any road closures.
LAT...LON 3735 9115 3746 9078 3740 9077 3737 9077
3731 9075 3729 9075 3717 9103 3716 9107
3718 9107 3718 9109 3720 9109 3720 9111
$$
PfahlerNearby
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.