Alert archive / Mississippi / Flash Flood Warnings in 2021
Flash Flood Warning 26, NWS Jackson, MS
NWS Jackson, MS issued this flash flood warning at Jun 6, 2021, 11:03 AM CDT for Jefferson Davis County, Lawrence County, Mississippi. It was in force for 3 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
- Jun 6, 2021, 11:03 AM CDT (16:03 UTC)
- Expired
- Jun 6, 2021, 2:15 PM CDT
- In force
- 3 hr
- Issued by
- NWS Jackson, MS
- Area
- Storm-based polygon
- Flood severity
- None
The radar
The Jackson/Brandon,MS radar (KDGX), 90 km from the middle of the area, began a volume at 16:06 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 |
|---|---|---|---|
| Jun 6, 12:30 PM CDT | FLASH FLOOD | 2 Se Arm, MS | MULTIPLE ROADS FLOODED ACROSS THE COUNTY. |
| Jun 6, 1:30 PM CDT | FLASH FLOOD | 1 Se Society Hall, MS | RAYNES RD COMPLETELY COVERED IN WATER WITH A PORTION WASHED OUT. |
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 12:00Z, 4.1 hours before the alert went out and 95 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
- 562 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 548 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 226 m²/s²
- 0-3 km storm-relative helicity
- 236 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.9
The text
As transmitted.
231
WGUS54 KJAN 061603
FFWJAN
MSC065-077-061815-
/O.NEW.KJAN.FF.W.0026.210606T1603Z-210606T1815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
1103 AM CDT Sun Jun 6 2021
The National Weather Service in Jackson has issued a
* Flash Flood Warning for...
Jefferson Davis County in south central Mississippi...
Southern Lawrence County in south central Mississippi...
* Until 115 PM CDT.
* At 1103 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 4 inches of rain
have fallen. 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...
Prentiss, Progress, Arm, Oak Vale, Society Hill, Tilton, Carson,
Robinwood, Clem, Topeka and Jayess.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3144 9024 3149 9006 3163 8994 3177 8985
3177 8976 3160 8975 3143 8980 3143 8982
3139 8982 3139 9004 3134 9004 3133 9005
3133 9008 3135 9011 3135 9024
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...2-3 INCHES IN 1 HOUR
$$
TW1 follow-up statement
871
WGUS54 KJAN 061804
FFWJAN
MSC065-077-061915-
/O.EXT.KJAN.FF.W.0026.000000T0000Z-210606T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
104 PM CDT Sun Jun 6 2021
The National Weather Service in Jackson has extended the
* Flash Flood Warning for...
Jefferson Davis County in south central Mississippi...
Southern Lawrence County in south central Mississippi...
* Until 215 PM CDT.
* At 104 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 5 inches of rain
have fallen across parts of the area. Flash flooding is ongoing or
expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Doppler radar.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
* Some locations that will experience flash flooding include...
Prentiss, Progress, Arm, Oak Vale, Society Hill, Tilton, Carson,
Robinwood, Clem, Topeka and Jayess.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3144 9024 3149 9006 3163 8994 3177 8985
3177 8976 3160 8975 3143 8980 3143 8982
3139 8982 3139 9004 3134 9004 3133 9005
3133 9008 3135 9011 3135 9024
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR
$$
NFThe office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 6, 3:01 AM CDT | Flash Flood Watch | JAN | Clarke, Covington, Forrest, Jasper, Jefferson Davis, Jones and 6 more | 15 hr |
| Jun 6, 8:08 AM CDT | Flash Flood Warning | JAN | Jefferson Davis, Lawrence | 4 hr |
| Jun 6, 9:28 AM CDT | Flash Flood Warning | JAN | Simpson | 3 hr |
| Jun 6, 9:52 AM CDT | Flash Flood Warning | JAN | Smith | 3 hr |
| Jun 6, 12:56 PM CDT | Flash Flood Warning | JAN | Covington, Jasper, Jefferson Davis, Jones, Smith | 4 hr |
| Jun 6, 2:59 PM CDT | Flash Flood Warning | JAN | Jones | 3 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.