Alert archive / Mississippi / Flash Flood Warnings in 2021
Flash Flood Warning 76, NWS Memphis, TN
NWS Memphis, TN issued this flash flood warning at Aug 14, 2021, 7:23 PM CDT for Yalobusha County, Mississippi. It was in force for 5 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
- Aug 14, 2021, 7:23 PM CDT (00:23 UTC)
- Expired
- Aug 15, 2021, 12:00 AM CDT
- In force
- 5 hr
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Flood severity
- None
County Yalobusha County, MS
The radar
The Columbus AFB radar (KGWX), 137 km from the middle of the area, began a volume at 00:24 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 |
|---|---|---|---|
| Aug 14, 11:00 PM CDT | FLASH FLOOD | Oakland, MS | THREE INCHES OF RAIN RECORDED. |
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 00:00Z, 0.4 hours before the alert went out and 97 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
- 1185 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 1097 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -13 m²/s²
- 0-3 km storm-relative helicity
- -16 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
503
WGUS54 KMEG 150023
FFWMEG
MSC161-150330-
/O.NEW.KMEG.FF.W.0076.210815T0023Z-210815T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Memphis TN
Issued by National Weather Service Little Rock AR
723 PM CDT Sat Aug 14 2021
The National Weather Service in Memphis has issued a
* Flash Flood Warning for...
Western Yalobusha County in northwestern Mississippi...
* Until 1030 PM CDT.
* At 723 PM CDT, 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...
George Payne State Park, Coffeeville, Scobey, Velma, Oakland and
Tillatoba.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3416 8992 3416 8972 3413 8965 3402 8961
3389 8977 3390 8977 3390 8978 3390 8980
3390 8981 3390 8982 3390 8983 3390 8984
3390 8985 3390 8986 3390 8989 3390 8992
FLASH FLOOD...RADAR INDICATED
$$2 follow-up statements
689
WGUS74 KMEG 150216
FFSMEG
Flash Flood Statement
National Weather Service Memphis TN
Issued by National Weather Service Little Rock AR
916 PM CDT Sat Aug 14 2021
MSC161-150330-
/O.CON.KMEG.FF.W.0076.000000T0000Z-210815T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Yalobusha MS-
916 PM CDT Sat Aug 14 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT THIS
EVENING FOR WESTERN YALOBUSHA COUNTY...
At 916 PM CDT, Doppler radar indicated nearly stationary
thunderstorms continuing to produce heavy rain across the warned
area. Between 3 and 5 inches of rain has fallen across western parts
of the county. An additional 1 to 2 inches of rain is possible
before the rain comes to an end. Flash flooding is ongoing or
expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
George Payne State Park, Coffeeville, Scobey, Velma, Oakland and
Tillatoba.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 3416 8992 3416 8972 3413 8965 3402 8961
3389 8977 3390 8977 3390 8978 3390 8980
3390 8981 3390 8982 3390 8983 3390 8984
3390 8985 3390 8986 3390 8989 3390 8992
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR
$$255
WGUS54 KMEG 150310
FFWMEG
MSC161-150500-
/O.EXT.KMEG.FF.W.0076.000000T0000Z-210815T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Memphis TN
Issued by National Weather Service Little Rock AR
1010 PM CDT Sat Aug 14 2021
The National Weather Service in Memphis has extended the
* Flash Flood Warning for...
Western Yalobusha County in northwestern Mississippi...
* Until midnight CDT.
* At 1010 PM CDT, Doppler radar indicated nearly stationary
thunderstorms continuing to produce heavy rainfall across the
area. Some locations across western Yalobusha County have received
over 6 inches of rainfall over the past 3 hours. Additional
rainfall is expected through midnight. Flash flooding is likely
ongoing in these areas.
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...
George Payne State Park, Coffeeville, Scobey, Velma, Oakland and
Tillatoba.
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 3416 8992 3416 8972 3413 8965 3402 8961
3389 8977 3390 8977 3390 8978 3390 8980
3390 8981 3390 8982 3390 8983 3390 8984
3390 8985 3390 8986 3390 8989 3390 8992
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR
$$The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 7:32 PM CDT | Special Weather Statement | MEG | Monroe | 28 min |
| Aug 14, 7:54 PM CDT | Flash Flood Warning | MEG | Calhoun, Yalobusha | 4 hr |
| Aug 14, 8:10 PM CDT | Special Weather Statement | MEG | Lee | 35 min |
| Aug 15, 1:26 PM CDT | Areal Flood Advisory | MEG | Alcorn, Tishomingo | 4 hr |
| Aug 15, 1:26 PM CDT | Special Weather Statement | MEG | Tishomingo | 34 min |
| Aug 15, 3:36 PM CDT | Areal Flood Advisory | MEG | Prentiss, Tishomingo | 3 hr |
| Aug 15, 4:42 PM CDT | Areal Flood Advisory | MEG | Lafayette | 2 hr |
Nearby
Flash Flood Warnings in Mississippi, 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.