Alert archive / Mississippi / Flash Flood Warnings in 2021
Flash Flood Warning 95, NWS Jackson, MS
NWS Jackson, MS issued this flash flood warning at Sep 5, 2021, 7:47 PM CDT for Carroll County, Montgomery County, Mississippi. It was in force for 2 hr. 2 reports 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
- Sep 5, 2021, 7:47 PM CDT (00:47 UTC)
- Expired
- Sep 5, 2021, 10:00 PM CDT
- In force
- 2 hr
- Issued by
- NWS Jackson, MS
- Area
- Storm-based polygon
- Flood severity
- None
Counties Carroll County, MS, Montgomery County, MS
The radar
The Jackson/Brandon,MS radar (KDGX), 129 km from the middle of the area, began a volume at 00:46 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 |
|---|---|---|---|
| Sep 5, 8:25 PM CDT | FLASH FLOOD | 4 Sw Kilmichael, MS | MULTIPLE ROADS FLOODED ACROSS SOUTHERN PORTIONS OF THE COUNTY. |
| Sep 5, 8:35 PM CDT | FLASH FLOOD | 4 N Vaiden, MS | WATER FLOWING ACROSS HWY 51 BETWEEN VAIDEN AND THE MONTGOMERY COUNTY LINE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 0.8 hours before the alert went out and 128 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
- 1405 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 1415 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted.
494
WGUS54 KJAN 060047
FFWJAN
MSC015-097-060300-
/O.NEW.KJAN.FF.W.0095.210906T0047Z-210906T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
747 PM CDT Sun Sep 5 2021
The National Weather Service in Jackson has issued a
* Flash Flood Warning for...
Southeastern Carroll County in north central Mississippi...
Southern Montgomery County in north central Mississippi...
* Until 1000 PM CDT.
* At 747 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 4 inches of rain
have fallen. The expected rainfall rate is 2 to 3 inches in 1
hour. 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...
Winona, Vaiden, Kilmichael and Poplar Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3329 8968 3329 8970 3328 8970 3334 8986
3347 8986 3347 8968 3347 8951 3346 8951
3346 8943 3344 8943 3344 8944 3344 8945
3343 8945 3329 8945
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...2-3 INCHES IN 1 HOUR
$$
TW1 follow-up statement
593
WGUS74 KJAN 060123
FFSJAN
Flash Flood Statement
National Weather Service Jackson MS
823 PM CDT Sun Sep 5 2021
MSC015-097-060300-
/O.CON.KJAN.FF.W.0095.000000T0000Z-210906T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Carroll MS-Montgomery MS-
823 PM CDT Sun Sep 5 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING FOR SOUTHEASTERN CARROLL AND SOUTHERN MONTGOMERY COUNTIES...
At 823 PM CDT, local law enforcement reported thunderstorms
producing heavy rain across the warned area. Between 3 and 5 inches
of rain have fallen. The expected rainfall rate is 2 to 3 inches in
1 hour. Additional rainfall amounts of 1 to 2 inches are possible in
the warned area. Flash flooding is already occurring.
HAZARD...Life threatening flash flooding. Thunderstorms producing
flash flooding.
SOURCE...Law enforcement reported.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.
Some locations that will experience flash flooding include...
Winona, Vaiden, Kilmichael and Poplar Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3329 8968 3329 8970 3328 8970 3334 8986
3347 8986 3347 8968 3347 8951 3346 8951
3346 8943 3344 8943 3344 8944 3344 8945
3343 8945 3329 8945
FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL...2-3 INCHES IN 1 HOUR
$$
TWThe office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 5, 8:16 PM CDT | Special Weather Statement | JAN | Oktibbeha | 44 min |
| Sep 6, 12:09 AM CDT | Flash Flood Warning | JAN | Choctaw | 3 hr |
| Sep 6, 4:02 AM CDT | Flash Flood Watch | JAN | Forrest, Lamar, Marion | 11 hr |
| Sep 6, 10:26 AM CDT | Special Weather Statement | JAN | Forrest, Lamar | 79 min |
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.