Alert archive / Mississippi / Flash Flood Warnings in 2021
Flash Flood Warning 62, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at Aug 30, 2021, 6:20 AM CDT for 4 counties in Mississippi. It was in force for 5 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
- Aug 30, 2021, 6:20 AM CDT (11:20 UTC)
- Expired
- Aug 30, 2021, 11:30 AM CDT
- In force
- 5 hr
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Flood severity
- None
Counties George County, MS, Greene County, MS, Perry County, MS, Stone County, MS
The radar
The Mobile radar (KMOB), 78 km from the middle of the area, began a volume at 11:21 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
Slidell Radar S, LA (KSIL), launched 00:00Z, 11.3 hours before the alert went out and 108 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.
727
WGUS54 KMOB 301120
FFWMOB
MSC039-041-111-131-301730-
/O.NEW.KMOB.FF.W.0062.210830T1120Z-210830T1730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
620 AM CDT Mon Aug 30 2021
The National Weather Service in Mobile has issued a
* Flash Flood Warning for...
Western George County in southeastern Mississippi...
Southwestern Greene County in southeastern Mississippi...
Perry County in southeastern Mississippi...
Eastern Stone County in southeastern Mississippi...
* Until 1230 PM CDT Monday.
* At 620 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across 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...
Richton, Beaumont, New Augusta, McLain, Oak Grove, Barbara,
Janice, Progress, Little Creek, Deep Creek, Ferguson, Wingate,
Leaf, Avent, Mahned, Hintonville, Benndale, Belleville, McSwain
and Dale.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3143 8913 3142 8891 3073 8869 3074 8888
3068 8889 3068 8897 3090 8904 3092 8914
FLASH FLOOD...RADAR INDICATED
$$1 follow-up statement
808
WGUS74 KMOB 301630
FFSMOB
Flash Flood Statement
National Weather Service Mobile AL
1130 AM CDT Mon Aug 30 2021
MSC039-041-111-131-301640-
/O.CAN.KMOB.FF.W.0062.000000T0000Z-210830T1730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
George MS-Greene MS-Perry MS-Stone MS-
1130 AM CDT Mon Aug 30 2021
...FLASH FLOOD WARNING IS CANCELLED FOR WESTERN GEORGE, SOUTHWESTERN
GREENE, PERRY AND EASTERN STONE COUNTIES...
Flooding is no longer expected to pose a threat. Please continue to
heed remaining road closures.
A Flash Flood Watch remains in effect until 1200 PM CDT Tuesday for
Portions of Alabama. Portions of northwest Florida. Portions of
southeast Mississippi.
LAT...LON 3143 8913 3142 8891 3073 8869 3074 8888
3068 8889 3068 8897 3090 8904 3092 8914
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 29, 7:07 PM CDT | Tornado Warning | MOB | George | 25 min |
| Aug 29, 11:30 PM CDT | Flash Flood Warning | MOB | Stone | 6 hr |
| Aug 30, 12:29 AM CDT | Flash Flood Warning | MOB | George, Perry, Stone | 6 hr |
| Aug 30, 3:24 AM CDT | Flash Flood Warning | MOB | George, Greene, Perry | 6 hr |
| Aug 30, 3:39 AM CDT | Tornado Warning | MOB | George, Greene, Perry | 20 min |
| Aug 30, 6:05 AM CDT | Flash Flood Warning | MOB | Stone | 4 hr |
| Aug 30, 9:20 AM CDT | Areal Flood Warning | MOB | George, Greene, Perry | 8 hr |
| Aug 30, 2:32 PM CDT | Tornado Warning | MOB | Wayne | 21 min |
| Aug 30, 5:19 PM CDT | Areal Flood Warning | MOB | George | 14 hr |
| Aug 30, 6:28 PM CDT | Special Weather Statement | MOB | George | 47 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.