Alert archive / Mississippi / Flash Flood Warnings in 2021
Flash Flood Warning 83, NWS Jackson, MS
NWS Jackson, MS issued this flash flood warning at Aug 30, 2021, 3:32 AM CDT for Forrest County, Lamar County, Marion County, Mississippi. It was in force for 6 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 30, 2021, 3:32 AM CDT (08:32 UTC)
- Expired
- Aug 30, 2021, 9:30 AM CDT
- In force
- 6 hr
- Issued by
- NWS Jackson, MS
- Area
- Storm-based polygon
- Flood severity
- None
Counties Forrest County, MS, Lamar County, MS, Marion County, MS
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 30, 7:05 AM CDT | FLASH FLOOD | 1 Sw Hattiesburg, MS | WATER COVERED THE ROAD AT HIGHWAY 49 AND WEST PINE STREET. IT ALSO COVERED THE ROAD AT NORTH 28TH AVENUE AND SIMS ROAD. VIA SOCIAL MEDIA. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 8.5 hours before the alert went out and 99 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
- 25 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 679 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
739
WGUS54 KJAN 300832
FFWJAN
MSC035-073-091-301230-
/O.NEW.KJAN.FF.W.0083.210830T0832Z-210830T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
332 AM CDT Mon Aug 30 2021
The National Weather Service in Jackson has issued a
* Flash Flood Warning for...
Marion County in south central Mississippi...
Forrest County in southeastern Mississippi...
Lamar County in southeastern Mississippi...
* Until 730 AM CDT.
* At 332 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 3 inches of rain
have fallen. Additional rainfall amounts of 2 to 3 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...
Hattiesburg, Petal, Columbia, West Hattiesburg, Sandy Hook,
Kokomo, Holly Springs, Purvis, Lumberton, Sumrall, Pine Ridge,
Baxterville, Oak Grove, Pinebur, Improve, Rawls Springs, Rock
Hill, Pickwick, Bunker Hill and Mclaurin.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3139 9004 3139 8982 3143 8982 3143 8915
3091 8914 3091 8934 3101 8935 3101 8942
3099 8943 3099 8948 3101 8950 3100 8983
3108 8983 3107 8992 3113 8994 3113 9000
3118 9001 3118 9003
FLASH FLOOD...RADAR INDICATED
$$
CME1 follow-up statement
828
WGUS54 KJAN 301225
FFWJAN
MSC035-073-091-301430-
/O.EXT.KJAN.FF.W.0083.000000T0000Z-210830T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
725 AM CDT Mon Aug 30 2021
The National Weather Service in Jackson has extended the
* Flash Flood Warning for...
Marion County in south central Mississippi...
Forrest County in southeastern Mississippi...
Lamar County in southeastern Mississippi...
* Until 930 AM CDT.
* At 725 AM CDT, local law enforcement reported thunderstorms
producing heavy rain across the warned area. Between 3 and 5
inches of rain have fallen. Additional rainfall amounts of 1 to 2
inches are possible in the warned area. Flash flooding is ongoing
or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Law enforcement reported.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Hattiesburg, Petal, Columbia, West Hattiesburg, Sandy Hook,
Kokomo, Holly Springs, Purvis, Lumberton, Sumrall, Pine Ridge,
Baxterville, Oak Grove, Pinebur, Improve, Rawls Springs, Rock
Hill, Pickwick, Bunker Hill and Mclaurin.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3139 9004 3139 8982 3143 8982 3143 8915
3091 8914 3091 8934 3101 8935 3101 8942
3099 8943 3099 8948 3101 8950 3100 8983
3108 8983 3107 8992 3113 8994 3113 9000
3118 9001 3118 9003
FLASH FLOOD...OBSERVED
$$
TWThe office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 30, 5:35 AM CDT | Flash Flood Warning | JAN | Lawrence, Lincoln | 3 hr |
| Aug 30, 6:00 AM CDT | Flash Flood Warning | JAN | Covington, Jefferson Davis | 4 hr |
| Aug 30, 6:41 AM CDT | Flash Flood Warning | JAN | Copiah, Simpson | 4 hr |
| Aug 30, 7:08 AM CDT | Flash Flood Warning | JAN | Jones | 4 hr |
| Aug 30, 8:14 AM CDT | Flash Flood Warning | JAN | Rankin, Smith | 4 hr |
| Aug 30, 8:21 AM CDT | Flash Flood Warning | JAN | Rankin, Smith | 4 hr |
| Aug 30, 8:33 AM CDT | Flash Flood Warning | JAN | Covington, Hinds, Jasper, Jones, Rankin, Scott and 2 more | 4 hr |
| Aug 30, 12:38 PM CDT | Special Weather Statement | JAN | Madison | 22 min |
| Aug 30, 3:17 PM CDT | Flash Flood Warning | JAN | Lauderdale | 118 min |
| Aug 30, 4:33 PM CDT | Flash Flood Warning | JAN | Kemper, Noxubee | 2 hr |
| Aug 30, 5:01 PM CDT | Flash Flood Warning | JAN | Clarke, Lauderdale | 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.