Alert archive / Missouri / Flash Flood Warnings in 2021
Flash Flood Warning 1, NWS Memphis, TN
NWS Memphis, TN issued this flash flood warning at Feb 28, 2021, 3:37 PM CST for Dunklin County, Pemiscot County, Missouri; Lake County, Obion County, Tennessee; Mississippi County, Arkansas. It was in force for 2 hr. 1 report 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
- Feb 28, 2021, 3:37 PM CST (21:37 UTC)
- Expired
- Feb 28, 2021, 6:00 PM CST
- In force
- 2 hr
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Mississippi County, AR, Dunklin County, MO, Pemiscot County, MO, Lake County, TN, Obion County, TN
The radar
The Memphis radar (KNQA), 113 km from the middle of the area, began a volume at 21:38 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 |
|---|---|---|---|
| Feb 28, 4:57 PM CST | FLASH FLOOD | Tiptonville, TN | FLOODING ACROSS TIPTONVILLE. SEVERAL INCHES OF WATER IN ONE STRUCTURE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Little Rock, AR (KLZK), launched 12:00Z, 9.6 hours before the alert went out and 170 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
- 448 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 525 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 396 m²/s²
- 0-3 km storm-relative helicity
- 396 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.8
The text
As transmitted.
968
WGUS54 KMEG 282137
FFWMEG
ARC093-MOC069-155-TNC095-131-010000-
/O.NEW.KMEG.FF.W.0001.210228T2137Z-210301T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Memphis TN
337 PM CST Sun Feb 28 2021
The National Weather Service in Memphis has issued a
* Flash Flood Warning for...
North Central Mississippi County in eastern Arkansas...
Southeastern Dunklin County in southeastern Missouri...
Pemiscot County in southeastern Missouri...
Lake County in western Tennessee...
Northwestern Obion County in western Tennessee...
* Until 600 PM CST.
* At 337 PM CST, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Flash flooding is ongoing or
expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Doppler radar.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
* Some locations that will experience flash flooding include...
Kennett, Caruthersville, Hayti, Steele, Senath, Reelfoot Lake
State Park, Tiptonville, Ridgely, Hornersville, Hayti Heights,
Wardell, Bolton, Deering, Cottonwood Grove, Clayton, Hornbeak,
Samburg, Bragg City, Pascola and Hathaway.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses
as well as other drainage areas and low lying spots.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.
A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.
&&
LAT...LON 3600 9021 3614 9024 3617 9023 3640 8969
3640 8966 3640 8959 3634 8955 3634 8953
3636 8951 3643 8955 3647 8952 3649 8953
3650 8951 3650 8948 3647 8949 3646 8947
3650 8942 3651 8918 3640 8915 3594 9014
FLASH FLOOD...RADAR INDICATED
$$
MJHThe office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 27, 9:03 PM CST | Dense Fog Advisory | MEG | Dunklin, Pemiscot | 7 hr |
| Feb 28, 3:15 PM CST | Severe Thunderstorm Warning | MEG | Dunklin, Pemiscot | 33 min |
| Feb 28, 4:37 PM CST | Flash Flood Warning | MEG | Pemiscot | 5 hr |
| Feb 27, 6:37 PM CST | Special Weather Statement | MEG | Decatur | 23 min |
| Feb 28, 11:47 AM CST | River Flood Warning | MEG | Obion, Weakley | 65 hr |
| Feb 28, 11:49 AM CST | River Flood Warning | MEG | Dyer, Gibson, Obion | 7 days |
| Feb 28, 11:50 AM CST | River Flood Advisory | MEG | Decatur, Perry | 5 days |
| Feb 28, 4:44 PM CST | Flash Flood Warning | MEG | Lake, Obion | 5 hr |
| Feb 28, 5:16 PM CST | Flash Flood Warning | MEG | Lauderdale | 3 hr |
| Feb 28, 5:34 PM CST | Severe Thunderstorm Warning | MEG | Lauderdale, Shelby, Tipton | 41 min |
| Feb 28, 4:46 PM CST | Special Weather Statement | MEG | Cross | 29 min |
| Feb 28, 4:56 PM CST | Severe Thunderstorm Warning | MEG | Crittenden, Cross, Poinsett | 49 min |
Nearby
Flash Flood Warnings in Missouri, 2021Flash Flood Warnings in Tennessee, 2021Flash Flood Warnings in Arkansas, 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.