Alert archive / Mississippi / Flash Flood Warnings in 2012
Flash Flood Warning 96, NWS Jackson, MS
NWS Jackson, MS issued this flash flood warning at Aug 3, 2012, 7:16 PM CDT for Covington County, Simpson County, Smith County, Mississippi. It was in force for 119 min. 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 3, 2012, 7:16 PM CDT (00:16 UTC)
- Expired
- Aug 3, 2012, 9:15 PM CDT
- In force
- 119 min
- Issued by
- NWS Jackson, MS
- Area
- Storm-based polygon
- Flood severity
- None
Counties Covington County, MS, Simpson County, MS, Smith County, MS
The radar
The Jackson/Brandon,MS radar (KDGX), 67 km from the middle of the area, began a volume at 00:16 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
Jackson, MS (KJAN), launched 00:00Z, 0.3 hours before the alert went out and 75 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
- 2397 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 1444 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- 46 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
040
WGUS54 KJAN 040016
FFWJAN
MSC031-127-129-040215-
/O.NEW.KJAN.FF.W.0096.120804T0016Z-120804T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
716 PM CDT FRI AUG 3 2012
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHEASTERN SIMPSON COUNTY IN CENTRAL MISSISSIPPI...
SOUTHWESTERN SMITH COUNTY IN CENTRAL MISSISSIPPI...
NORTHWESTERN COVINGTON COUNTY IN SOUTHEAST MISSISSIPPI...
* UNTIL 915 PM CDT
* AT 715 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED
THUNDERSTORMS PRODUCING VERY HEAVY RAIN 8 MILES NORTH OF MOUNT
OLIVE...OR NEAR MAGEE. THE STORMS WERE NEARLY STATIONARY. ESTIMATED
RADAR RAINFALL AMOUNTS...ON THE ORDER OF TWO TO FOUR INCHES...HAVE
OCCURRED IN THE PAST TWO HOURS.
VERY HEAVY RAINFALL WILL CONTINUE OVER THE WARNED AREA FOR THE NEXT
HOUR WITH AN ADDITIONAL ONE TO THREE INCHES POSSIBLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE WATER COVERS THE ROADWAY. WHEN ENCOUNTERING FLOODED ROADS
MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.
&&
LAT...LON 3170 8961 3168 8966 3170 8973 3187 8969
3187 8960
$$
JA1 follow-up statement
612
WGUS74 KJAN 040108
FFSJAN
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
808 PM CDT FRI AUG 3 2012
MSC031-127-129-040215-
/O.CON.KJAN.FF.W.0096.000000T0000Z-120804T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SMITH MS-SIMPSON MS-COVINGTON MS-
808 PM CDT FRI AUG 3 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR
NORTHWESTERN COVINGTON...EXTREME SOUTHEASTERN SIMPSON AND EXTREME
SOUTHWESTERN SMITH COUNTIES...
AT 808 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
DETECT THUNDERSTORMS PRODUCING HEAVY RAIN NEAR MOUNT OLIVE...OR 6
MILES SOUTHEAST OF MAGEE...MOVING SOUTH AT 5 TO 10 MPH. ESTIMATED
RADAR RAINFALL AMOUNTS...ON THE ORDER OF THREE TO FIVE INCHES...HAVE
OCCURRED IN THE PAST THREE HOURS.
THE STORMS WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE
INDICATED COUNTIES.
HEAVY RAINFALL WILL CONTINUE OVER THE WARNED AREA FOR THE NEXT
HOUR. WITH AN ADDITIONAL ONE TO TWO INCHES POSSIBLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE WATER COVERS THE ROADWAY. WHEN ENCOUNTERING FLOODED ROADS
MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.
&&
LAT...LON 3170 8961 3168 8966 3170 8973 3187 8969
3187 8960
$$
JAThe office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 7:39 PM CDT | Special Weather Statement | JAN | Jones | 31 min |
| Aug 4, 2:48 PM CDT | Special Weather Statement | JAN | Lamar | 27 min |
| Aug 4, 3:06 PM CDT | Special Weather Statement | JAN | Marion | 29 min |
| Aug 4, 3:55 PM CDT | Special Weather Statement | JAN | Forrest | 30 min |
| Aug 4, 4:21 PM CDT | Special Weather Statement | JAN | Covington | 29 min |
| Aug 4, 4:50 PM CDT | Special Weather Statement | JAN | Covington | 30 min |
| Aug 4, 5:45 PM CDT | Special Weather Statement | JAN | Leake, Scott | 30 min |
| Aug 4, 6:04 PM CDT | Special Weather Statement | JAN | Smith | 31 min |
| Aug 4, 6:26 PM CDT | Special Weather Statement | JAN | Newton | 39 min |
| Aug 4, 6:34 PM CDT | Special Weather Statement | JAN | Simpson | 41 min |
| Aug 4, 6:36 PM CDT | Special Weather Statement | JAN | Smith | 29 min |
| Aug 4, 6:44 PM CDT | Severe Thunderstorm Warning | JAN | Jasper, Newton | 32 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.