Alert archive / Mississippi / Flash Flood Warnings in 2012
Flash Flood Warning 146, NWS Jackson, MS
NWS Jackson, MS issued this flash flood warning at Sep 30, 2012, 7:37 PM CDT for 6 counties in Mississippi. It was in force for 3 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
- Sep 30, 2012, 7:37 PM CDT (00:37 UTC)
- Expired
- Sep 30, 2012, 10:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS Jackson, MS
- Area
- Storm-based polygon
- Flood severity
- None
Counties Holmes County, MS, Humphreys County, MS, Issaquena County, MS, Sharkey County, MS, Warren County, MS, Yazoo County, MS
The radar
The Jackson/Brandon,MS radar (KDGX), 77 km from the middle of the area, began a volume at 00:39 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 30, 7:55 PM CDT | FLASH FLOOD | Vicksburg, MS | REPORTS OF WATER ACROSS SKY FARM AVENUE AND NORTH WASHINGTON STREET. WATER IS ALSO ACROSS CLAY STREET AT THE RAMP AT INTERSTATE 20. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 0.6 hours before the alert went out and 67 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
- 1160 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 613 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 236 m²/s²
- 0-3 km storm-relative helicity
- 316 m²/s²
- Significant tornado parameter
- 1.3
- Supercell composite
- 10.6
The text
As transmitted, in the capitals the NWS used until 2016.
517
WGUS54 KJAN 010037
FFWJAN
MSC051-053-055-125-149-163-010330-
/O.NEW.KJAN.FF.W.0146.121001T0037Z-121001T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
737 PM CDT SUN SEP 30 2012
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
WESTERN HOLMES COUNTY IN CENTRAL MISSISSIPPI...
HUMPHREYS COUNTY IN CENTRAL MISSISSIPPI...
YAZOO COUNTY IN CENTRAL MISSISSIPPI...
THIS INCLUDES THE CITY OF YAZOO CITY...
SOUTHEASTERN ISSAQUENA COUNTY IN WEST CENTRAL MISSISSIPPI...
SOUTHERN SHARKEY COUNTY IN WEST CENTRAL MISSISSIPPI...
WARREN COUNTY IN WEST CENTRAL MISSISSIPPI...
THIS INCLUDES THE CITIES OF...REDWOOD...VICKSBURG...
* UNTIL 1030 PM CDT
* AT 736 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED
THUNDERSTORMS PRODUCING VERY HEAVY RAIN 7 MILES NORTH OF OAK
RIDGE...OR 7 MILES NORTHEAST OF REDWOOD...MOVING NORTHEAST AT 25
MPH. ESTIMATED RADAR RAINFALL AMOUNTS...ON THE ORDER OF ONE TO
THREE INCHES...HAVE OCCURRED IN THE PAST TWO HOURS.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
ONWARD...PHOENIX...HOLLY BLUFF...TINSLEY...LITTLE YAZOO...BENTON...
MIDNIGHT...COXBURG...TOLARVILLE...HOWARD AND TCHULA
VERY HEAVY RAINFALL WILL CONTINUE OVER THE WARNED AREA FOR THE NEXT
THREE HOURS WITH AN ADDITIONAL TWO TO FOUR INCHES POSSIBLE.
RAINFALL AMOUNTS FROM ONE TO THREE INCHES IN A HOUR CAN CAUSE
FLOODING IN AND AROUND YAZOO CITY INCLUDING EIGHT STREET AT PRENTISS
AVENUE...CALHOUN AVENUE AT NINTH STREET...FIFTH STREET AT CLAY
AVENUE...BRIDGE STREET AT MOUND STREET AND GRAND AVENUE EXTENSION AT
THE BROADMOOR APARTMENTS ENTRANCE.
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 3331 9008 3292 9017 3266 9036 3248 9060
3236 9063 3235 9071 3230 9070 3222 9097
3229 9098 3230 9092 3237 9087 3234 9092
3236 9100 3281 9097 3326 9046 3324 9037
3335 9028 3337 9033 3337 9032
$$
JA2 follow-up statements
867
WGUS74 KJAN 010106
FFSJAN
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
806 PM CDT SUN SEP 30 2012
MSC051-053-055-125-149-163-010330-
/O.CON.KJAN.FF.W.0146.000000T0000Z-121001T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WARREN MS-SHARKEY MS-ISSAQUENA MS-HUMPHREYS MS-HOLMES MS-YAZOO MS-
806 PM CDT SUN SEP 30 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT FOR
YAZOO...WESTERN HOLMES...HUMPHREYS...SOUTHEASTERN ISSAQUENA...SHARKEY
AND WARREN COUNTIES...
AT 803 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
DETECT HEAVY SHOWERS PRODUCING VERY HEAVY RAIN ALONG A LINE
EXTENDING FROM 8 MILES WEST OF YAZOO CITY TO REDWOOD...MOVING
NORTHEAST AT 40 MPH. ESTIMATED RADAR RAINFALL AMOUNTS...ON THE ORDER
OF ONE TO THREE INCHES...HAVE OCCURRED IN THE PAST TWO HOURS.
SEVERAL REPORTS OF STREET FLOODING IN VICKSBURG HAVE BEEN REPORTED
VIA LOCAL EMERGENCY MANAGEMENT. THIS CLUSTER OF HEAVY SHOWERS WILL
CONTINUE TO PRODUCE 1 TO 2 INCH HOURLY RAINFALL RATES THAT CAN
QUICKLY CAUSE FLASH FLOODING AS IT MOVES INTO YAZOO COUNTY
OVER THE NEXT HOUR.
RAINFALL AMOUNTS FROM ONE TO THREE INCHES IN A HOUR CAN CAUSE
FLOODING IN AND AROUND YAZOO CITY INCLUDING EIGHT STREET AT PRENTISS
AVENUE...CALHOUN AVENUE AT NINTH STREET...FIFTH STREET AT CLAY
AVENUE...BRIDGE STREET AT MOUND STREET AND GRAND AVENUE EXTENSION AT
THE BROADMOOR APARTMENTS ENTRANCE.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
MIDNIGHT...PHOENIX...BELZONI...TINSLEY...LITTLE YAZOO...THORNTON...
BENTON...TCHULA...COXBURG...TOLARVILLE AND HOWARD
VERY HEAVY RAINFALL WILL CONTINUE OVER THE WARNED AREA FOR THE NEXT
THREE HOURS. WITH AN ADDITIONAL TWO TO FOUR 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 3331 9008 3292 9017 3266 9036 3248 9060
3236 9063 3235 9071 3230 9070 3222 9097
3229 9098 3230 9092 3237 9087 3234 9092
3236 9100 3281 9097 3326 9046 3324 9037
3335 9028 3337 9033 3337 9032
$$
JA203
WGUS74 KJAN 010211
FFSJAN
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
911 PM CDT SUN SEP 30 2012
MSC051-053-055-125-149-163-010330-
/O.CON.KJAN.FF.W.0146.000000T0000Z-121001T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WARREN MS-SHARKEY MS-ISSAQUENA MS-HUMPHREYS MS-HOLMES MS-YAZOO MS-
911 PM CDT SUN SEP 30 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT FOR
YAZOO...WESTERN HOLMES...HUMPHREYS...SOUTHEASTERN ISSAQUENA...SHARKEY
AND WARREN COUNTIES...
AT 906 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
DETECT HEAVY SHOWERS PRODUCING VERY HEAVY RAIN ALONG A LINE
EXTENDING FROM TCHULA TO 8 MILES NORTHEAST OF VALLEY PARK...MOVING
NORTHEAST AT 40 MPH. ESTIMATED RADAR RAINFALL AMOUNTS...ON THE ORDER
OF ONE TO THREE INCHES...HAVE OCCURRED IN THE PAST TWO HOURS.
HIGH RAINFALL RATES WILL TAPPER OFF ACROSS THE SOUTHERN PORTION OF
THE WARNED AREA (WARREN AND SW YAZOO COUNTY) OVER THE NEXT HALF HOUR
BUT LIGHT RAIN WILL CONTINUE...SLOWING FLOODING RUNOFF RATE. THE
BULK OF THE HEAVY SHOWERS HAS PUSHED INTO HUMPHREYS AND HOLMES
COUNTIES WHERE AN ADDITIONAL ONE TO TWO INCHES WILL BE POSSIBLE OVER
THE NEXT HOUR AND A HALF.
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 3331 9008 3292 9017 3266 9036 3248 9060
3236 9063 3235 9071 3230 9070 3222 9097
3229 9098 3230 9092 3237 9087 3234 9092
3236 9100 3281 9097 3326 9046 3324 9037
3335 9028 3337 9033 3337 9032
$$
JAThe office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 30, 8:55 PM CDT | Flash Flood Warning | JAN | Carroll, Grenada, Leflore | 3 hr |
| Sep 30, 9:22 PM CDT | Areal Flood Warning | JAN | Sunflower, Washington | 4 hr |
| Oct 1, 12:29 AM CDT | Flash Flood Warning | JAN | Attala, Madison | 2 hr |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.