Alert archive / Missouri / Flash Flood Warnings in 2021
Flash Flood Warning 14, NWS Quad Cities, IA
NWS Quad Cities, IA issued this flash flood warning at Aug 12, 2021, 2:29 PM CDT for Scotland County, Missouri. It was in force for 4 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
- Aug 12, 2021, 2:29 PM CDT (19:29 UTC)
- Expired
- Aug 12, 2021, 6:30 PM CDT
- In force
- 4 hr
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Flood severity
- None
County Scotland County, MO
The radar
The Quad Cities radar (KDVN), 184 km from the middle of the area, began a volume at 19:29 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
Davenport, (KDVN), launched 12:00Z, 7.5 hours before the alert went out and 189 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2463 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
672
WGUS53 KDVN 121929
FFWDVN
MOC199-122330-
/O.NEW.KDVN.FF.W.0014.210812T1929Z-210812T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Quad Cities IA IL
229 PM CDT Thu Aug 12 2021
The National Weather Service in Quad Cities has issued a
* Flash Flood Warning for...
Scotland County in northeastern Missouri...
* Until 630 PM CDT.
* At 229 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 3 inches of rain
have fallen. Additional rainfall amounts of 1 to 2 inches are
possible in the warned area. 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...
Memphis, Rutledge, South Gorin, Crawford, Scotland County
Fairgrounds, Memphis Memorial Airport, Spillman Mound, Sand Hill,
Bible Grove, Hitt, Kilwinning and Etna.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 4060 9218 4043 9217 4044 9195 4030 9195
4030 9235 4060 9235
FLASH FLOOD...RADAR INDICATED
$$
Gross2 follow-up statements
982
WGUS73 KDVN 122134
FFSDVN
Flash Flood Statement
National Weather Service Quad Cities IA IL
434 PM CDT Thu Aug 12 2021
MOC199-122330-
/O.CON.KDVN.FF.W.0014.000000T0000Z-210812T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Scotland MO-
434 PM CDT Thu Aug 12 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 PM CDT THIS
EVENING FOR SCOTLAND COUNTY...
At 434 PM CDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 2 and 5 inches of rain have
fallen. Flash flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Memphis, Rutledge, South Gorin, Crawford, Scotland County
Fairgrounds, Memphis Memorial Airport, Spillman Mound, Sand Hill,
Bible Grove, Hitt, Kilwinning and Etna.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 4060 9218 4043 9217 4044 9195 4030 9195
4030 9235 4060 9235
FLASH FLOOD...RADAR INDICATED
$$
Uttech534
WGUS73 KDVN 122322
FFSDVN
Flash Flood Statement
National Weather Service Quad Cities IA IL
622 PM CDT Thu Aug 12 2021
MOC199-122332-
/O.EXP.KDVN.FF.W.0014.000000T0000Z-210812T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Scotland MO-
622 PM CDT Thu Aug 12 2021
...FLASH FLOOD WARNING WILL EXPIRE AT 630 PM CDT THIS EVENING FOR
SCOTLAND COUNTY...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
A Flash Flood Watch remains in effect until 700 AM CDT Friday for
portions of west central Illinois, southeast Iowa and northeast
Missouri.
LAT...LON 4060 9218 4043 9217 4044 9195 4030 9195
4030 9235 4060 9235
$$
UttechThe office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 2:57 AM CDT | Heat Advisory | DVN | Clark, Scotland | 8 hr |
| Aug 12, 8:35 AM CDT | Special Weather Statement | DVN | Scotland | 25 min |
| Aug 12, 9:54 AM CDT | Special Weather Statement | DVN | Clark | 96 min |
| Aug 12, 10:32 AM CDT | Flash Flood Warning | DVN | Clark, Scotland | 6 hr |
| Aug 12, 11:29 AM CDT | Special Weather Statement | DVN | Clark, Scotland | 91 min |
| Aug 12, 12:44 PM CDT | Flash Flood Watch | DVN | Clark, Scotland | 8 hr |
| Aug 12, 12:55 PM CDT | Special Weather Statement | DVN | Clark, Scotland | 95 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.