Alert archive / Mississippi / Flash Flood Warnings in 2012
Flash Flood Warning 95, NWS Jackson, MS
NWS Jackson, MS issued this flash flood warning at Aug 1, 2012, 5:33 PM CDT for Choctaw County, Winston County, Mississippi. It was in force for 117 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 1, 2012, 5:33 PM CDT (22:33 UTC)
- Expired
- Aug 1, 2012, 7:30 PM CDT
- In force
- 117 min
- Issued by
- NWS Jackson, MS
- Area
- Storm-based polygon
- Flood severity
- None
Counties Choctaw County, MS, Winston County, MS
The radar
The Columbus AFB radar (KGWX), 101 km from the middle of the area, began a volume at 22:35 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 12:00Z, 10.6 hours before the alert went out and 139 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
- 2325 J/kg
- Mixed-layer CIN
- -78 J/kg
- Mixed-layer LCL
- 970 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 84 m²/s²
- 0-3 km storm-relative helicity
- 124 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.3
The text
As transmitted, in the capitals the NWS used until 2016.
637
WGUS54 KJAN 012233
FFWJAN
MSC019-159-020030-
/O.NEW.KJAN.FF.W.0095.120801T2233Z-120802T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
533 PM CDT WED AUG 1 2012
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
EASTERN CHOCTAW COUNTY IN CENTRAL MISSISSIPPI...
NORTHWEST WINSTON COUNTY IN EAST CENTRAL MISSISSIPPI...
* UNTIL 730 PM CDT
* AT 532 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED
THUNDERSTORMS PRODUCING VERY HEAVY RAIN NEAR REFORM...OR 22 MILES
NORTHWEST OF LOUISVILLE TOWARDS ACKERMAN AND CHESTER...MOVING
SOUTH AT 5 MPH. ESTIMATED RADAR RAINFALL AMOUNTS...ON THE ORDER
OF TWO TO FOUR INCHES...HAVE OCCURRED IN THE PAST TWO HOURS.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
CHESTER AND ACKERMAN
VERY HEAVY RAINFALL WILL CONTINUE OVER THE WARNED AREA FOR THE NEXT
TWO HOURS 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 3353 8912 3319 8908 3313 8913 3310 8922
3322 8927 3351 8927
$$
JA1 follow-up statement
929
WGUS74 KJAN 012359
FFSJAN
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
659 PM CDT WED AUG 1 2012
MSC019-159-020030-
/O.CON.KJAN.FF.W.0095.000000T0000Z-120802T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WINSTON MS-CHOCTAW MS-
659 PM CDT WED AUG 1 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR
EASTERN CHOCTAW AND CENTRAL WINSTON COUNTIES...
AT 657 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
DETECT THUNDERSTORMS PRODUCING ADDITIONAL RAINFALL JUST TO THE
SOUTHWEST OF ACKERMAN. THE STORMS WERE SLOWLY MOVING SOUTHEAST.
ESTIMATED RADAR RAINFALL AMOUNTS...ON THE ORDER OF AN INCH...HAVE
OCCURRED IN THE PAST HOUR.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
SHERWOOD
RAINFALL WILL CONTINUE OVER THE WARNED AREA FOR THE NEXT HOUR. WITH
AN ADDITIONAL ONE INCH POSSIBLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE WATER COVERS THE ROADWAY. WHEN ENCOUNTERING FLOODED ROADS
MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.
&&
LAT...LON 3353 8912 3319 8908 3313 8913 3310 8922
3322 8927 3351 8927
$$
JAThe office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 7:45 PM CDT | Severe Thunderstorm Warning | JAN | Forrest, Jones | 23 min |
| Aug 1, 3:19 PM CDT | Special Weather Statement | JAN | Oktibbeha | 31 min |
| Aug 1, 3:35 PM CDT | Severe Thunderstorm Warning | JAN | Clay, Oktibbeha, Webster | 39 min |
| Aug 1, 3:42 PM CDT | Special Weather Statement | JAN | Winston | 28 min |
| Aug 1, 3:43 PM CDT | Special Weather Statement | JAN | Jefferson Davis | 32 min |
| Aug 1, 4:10 PM CDT | Severe Thunderstorm Warning | JAN | Clay | 26 min |
| Aug 1, 4:21 PM CDT | Special Weather Statement | JAN | Jefferson Davis | 29 min |
| Aug 1, 4:43 PM CDT | Severe Thunderstorm Warning | JAN | Lowndes | 47 min |
| Aug 1, 4:47 PM CDT | Special Weather Statement | JAN | Winston | 33 min |
| Aug 1, 4:56 PM CDT | Severe Thunderstorm Warning | JAN | Choctaw, Winston | 49 min |
| Aug 1, 4:59 PM CDT | Special Weather Statement | JAN | Webster | 41 min |
| Aug 1, 5:36 PM CDT | Special Weather Statement | JAN | Attala | 29 min |
| Aug 1, 6:36 PM CDT | Special Weather Statement | JAN | Leake | 29 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.