Alert archive / Mississippi / Flash Flood Warnings in 2021
Flash Flood Warning 84, NWS Memphis, TN
NWS Memphis, TN issued this flash flood warning at Sep 17, 2021, 10:09 PM CDT for Monroe County, Mississippi. It was in force for 3 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
- Sep 17, 2021, 10:09 PM CDT (03:09 UTC)
- Expired
- Sep 18, 2021, 12:53 AM CDT
- In force
- 3 hr
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Flood severity
- None
County Monroe County, MS
The radar
The Columbus AFB radar (KGWX), 22 km from the middle of the area, began a volume at 03:10 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
Birmingham, AL (KBMX), launched 00:00Z, 3.2 hours before the alert went out and 160 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
- 1075 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 805 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 36 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
369
WGUS54 KMEG 180309
FFWMEG
MSC095-180615-
/O.NEW.KMEG.FF.W.0084.210918T0309Z-210918T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Memphis TN
1009 PM CDT Fri Sep 17 2021
The National Weather Service in Memphis has issued a
* Flash Flood Warning for...
Southeastern Monroe County in northeastern Mississippi...
* Until 115 AM CDT.
* At 1009 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 3 inches of rain
have fallen since 9 pm. 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...
New Hamilton.
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 3367 8845 3376 8849 3387 8823 3374 8825
3375 8832 3372 8833 3371 8834 3369 8837
3369 8838 3369 8839 3369 8840 3368 8840
3368 8842 3367 8842 3367 8843 3367 8844
FLASH FLOOD...RADAR INDICATED
$$2 follow-up statements
727
WGUS74 KMEG 180427
FFSMEG
Flash Flood Statement
National Weather Service Memphis TN
1127 PM CDT Fri Sep 17 2021
MSC095-180615-
/O.CON.KMEG.FF.W.0084.000000T0000Z-210918T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Monroe MS-
1127 PM CDT Fri Sep 17 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 115 AM CDT SATURDAY
FOR SOUTHEASTERN MONROE COUNTY...
At 1127 PM CDT, Doppler radar indicates between 3 and 5 inches of
rain have fallen this evening. Flash flooding is ongoing or expected
to begin shortly. Thunderstorms are tapering off across the area but
runoff will continue.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
New Hamilton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 3367 8845 3376 8849 3387 8823 3374 8825
3375 8832 3372 8833 3371 8834 3369 8837
3369 8838 3369 8839 3369 8840 3368 8840
3368 8842 3367 8842 3367 8843 3367 8844
FLASH FLOOD...RADAR INDICATED
$$763
WGUS74 KMEG 180553
FFSMEG
Flash Flood Statement
National Weather Service Memphis TN
1253 AM CDT Sat Sep 18 2021
MSC095-180603-
/O.CAN.KMEG.FF.W.0084.000000T0000Z-210918T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Monroe MS-
1253 AM CDT Sat Sep 18 2021
...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN MONROE COUNTY...
Flood waters have receded. The heavy rain has ended. Flooding is no
longer expected to pose a threat. Please continue to heed remaining
road closures.
LAT...LON 3367 8845 3376 8849 3387 8823 3374 8825
3375 8832 3372 8833 3371 8834 3369 8837
3369 8838 3369 8839 3369 8840 3368 8840
3368 8842 3367 8842 3367 8843 3367 8844
$$The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 17, 10:36 PM CDT | Areal Flood Advisory | MEG | Monroe | 2 hr |
| Sep 18, 5:49 AM CDT | Areal Flood Advisory | MEG | DeSoto, Marshall | 4 hr |
| Sep 18, 5:57 AM CDT | Areal Flood Advisory | MEG | Benton, Marshall, Tippah | 32 min |
| Sep 18, 6:24 AM CDT | Flash Flood Watch | MEG | Alcorn, Benton, Calhoun, Chickasaw, Coahoma, DeSoto and 16 more | 56 hr |
| Sep 18, 6:29 AM CDT | Flash Flood Warning | MEG | Benton, Marshall, Tippah | 4 hr |
| Sep 18, 7:54 AM CDT | Areal Flood Advisory | MEG | DeSoto | 3 hr |
| Sep 18, 8:33 AM CDT | Areal Flood Advisory | MEG | Benton, Marshall, Tippah | 3 hr |
| Sep 18, 9:32 AM CDT | Areal Flood Advisory | MEG | DeSoto, Marshall, Tate, Tunica | 118 min |
| Sep 18, 10:40 AM CDT | Areal Flood Advisory | MEG | DeSoto, Panola, Tate | 3 hr |
| Sep 18, 11:46 AM CDT | Areal Flood Advisory | MEG | Coahoma, Quitman, Tallahatchie, Tunica | 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.