Alert archive / Mississippi / Flash Flood Warnings in 2012
Flash Flood Warning 39, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at Sep 4, 2012, 5:01 PM CDT for Greene County, Perry County, Wayne County, Mississippi. It was in force for 6 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 4, 2012, 5:01 PM CDT (22:01 UTC)
- Expired
- Sep 4, 2012, 11:00 PM CDT
- In force
- 6 hr
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Flood severity
- None
Counties Greene County, MS, Perry County, MS, Wayne County, MS
The radar
The Mobile radar (KMOB), 98 km from the middle of the area, began a volume at 22:02 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 12:00Z, 10.0 hours before the alert went out and 135 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
- 1547 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 675 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- -28 m²/s²
- 0-3 km storm-relative helicity
- 34 m²/s²
- Significant tornado parameter
- -0.2
- Supercell composite
- -1.5
The text
As transmitted, in the capitals the NWS used until 2016.
762
WGUS54 KMOB 042201
FFWMOB
MSC041-111-153-050400-
/O.NEW.KMOB.FF.W.0039.120904T2201Z-120905T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
501 PM CDT TUE SEP 4 2012
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
WESTERN GREENE COUNTY IN SOUTHEAST MISSISSIPPI...
PERRY COUNTY IN SOUTHEAST MISSISSIPPI...
SOUTHWESTERN WAYNE COUNTY IN SOUTHEAST MISSISSIPPI...
* UNTIL 1100 PM CDT
* AT 457 PM CDT...VERY HEAVY RAINFALL WAS INDICATED OVER THE WARNED
AREA AND RADAR ESTIMATES SHOW RAINFALL RATES OF 2 TO 3 INCHES
PER HOUR AS THE HEAVY RAINFALL FURTHER DEVELOPS AND MOVES
SOUTHWARD. THIS WILL LIKELY CAUSE FLASH FLOODING IN THE WARNED
AREA.
* LOCATIONS IMPACTED INCLUDE...
MCLAIN... RICHTON... NEW AUGUSTA...
BEAUMONT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLASH FLOOD WARNING MEANS FLOODING IS IMMINENT OR OCCURRING. SEEK
HIGHER GROUND IMMEDIATELY. DO NOT DRIVE OR WALK INTO AREAS WHERE
WATER CROSSES A ROAD. TURN AROUND - DON'T DROWN!
&&
LAT...LON 3143 8915 3144 8914 3144 8895 3156 8895
3138 8877 3115 8869 3101 8882 3098 8903
3110 8915
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 4, 8:12 AM CDT | Flash Flood Watch | MOB | George, Greene, Stone | 25 hr |
| Sep 4, 4:44 PM CDT | Areal Flood Advisory | MOB | Greene, Perry, Wayne | 2 hr |
| Sep 4, 5:33 PM CDT | Severe Thunderstorm Warning | MOB | Perry | 57 min |
| Sep 4, 6:00 PM CDT | Severe Thunderstorm Warning | MOB | Perry, Stone | 60 min |
| Sep 4, 6:49 PM CDT | Severe Thunderstorm Warning | MOB | Greene, Wayne | 34 min |
| Sep 4, 6:51 PM CDT | Severe Thunderstorm Warning | MOB | Perry, Stone | 54 min |
Nearby
Flash Flood Warnings in Mississippi, 2012Every flash flood warning in 2012
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.