Alert archive / Mississippi / Flash Flood Warnings in 2011

Flash Flood Warning 71, NWS Jackson, MS

April 25, 2011Ashley County, Chicot County, Arkansas; Bolivar County, Issaquena County, Washington County, Mississippi

NWS Jackson, MS issued this flash flood warning at Apr 25, 2011, 11:17 PM CDT for Ashley County, Chicot County, Arkansas; Bolivar County, Issaquena County, Washington County, Mississippi. It was in force for 98 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: Apr 25, 2011, 11:17 PM CDT (04:17 UTC)
Expired: Apr 26, 2011, 12:55 AM CDT
In force: 98 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Flood severity: None

Counties Ashley County, AR, Chicot County, AR, Bolivar County, MS, Issaquena County, MS, Washington County, MS

The radar

The Little Rock radar (KLZK), 176 km from the middle of the area, began a volume at 04:18 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, 4.3 hours before the alert went out and 169 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1103 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 1306 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 140 m²/s²
0-3 km storm-relative helicity: 155 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 5.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

621 
WGUS54 KJAN 260417
FFWJAN
ARC003-017-MSC011-055-151-260715-
/O.NEW.KJAN.FF.W.0071.110426T0417Z-110426T0715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
1117 PM CDT MON APR 25 2011

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BOLIVAR COUNTY IN NORTHWEST MISSISSIPPI...
  THIS INCLUDES THE CITIES OF...SHELBY...SHAW...ROSEDALE...
  CLEVELAND...
  WASHINGTON COUNTY IN NORTHWEST MISSISSIPPI...
  THIS INCLUDES THE CITIES OF...AVON...LELAND...HOLLANDALE...
  GREENVILLE...
  ASHLEY COUNTY IN SOUTHEAST ARKANSAS...
  THIS INCLUDES THE CITIES OF...WILMOT...WEST CROSSETT...NORTH
  CROSSETT...HAMBURG...CROSSETT...
  CHICOT COUNTY IN SOUTHEAST ARKANSAS...
  THIS INCLUDES THE CITIES OF...LAKE VILLAGE...EUDORA...DERMOTT...
  EXTREME NORTHWESTERN ISSAQUENA COUNTY IN WEST CENTRAL
  MISSISSIPPI...

* UNTIL 215 AM CDT

* AT 1115 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED
  A LINE OF SEVERE STORMS PRODUCING HEAVY RAINS 6 MILES SOUTHEAST OF 
MONTROSE...OR 8 MILES SOUTHWEST OF LAKE VILLAGE. THE STORMS WERE   
MOVING EAST AT 30 MPH. ESTIMATED RADAR RAINFALL AMOUNTS...ON THE 
ORDER OF ONE TO THREE INCHES...HAVE OCCURRED IN THE PAST ONE TO TWO 
HOURS.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  MCMILLAN CORNER...SNYDER...OLD MILO...DEESON...SCOTT...LAMONT...
  WINTERVILLE...TRIBBETT...WAYSIDE...FOUNTAIN HILL...RENOVA...MOUND
  BAYOU...METCALFE...GUNNISON...BOYLE AND BENOIT

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...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS...STREAMS AND FARMLAND ALONG BANKS AND COUNTRY ROADS.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF HIGHWAYS
AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE
BANKS OF CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO
FLOODING.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE WATER
COVERS THE ROAD. FIND ALTERNATE ROUTES AND MOVE TO HIGHER GROUND.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROADWAY.
THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY.
FIND AN ALTERNATE ROUTE AND MOVE TO HIGHER GROUND.

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 3363 9066 3362 9076 3311 9070 3311 9091
      3301 9092 3301 9206 3331 9195 3340 9182
      3340 9146 3357 9144 3352 9126 3360 9116
      3372 9121 3368 9104 3378 9115 3379 9099
      3397 9107 3412 9087 3412 9068

$$

MRM

3 follow-up statements

799 
WGUS74 KJAN 260432
FFSJAN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1132 PM CDT MON APR 25 2011

MSC055-260441-
/O.CAN.KJAN.FF.W.0071.000000T0000Z-110426T0715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ISSAQUENA MS-
1132 PM CDT MON APR 25 2011

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR EXTREME
NORTHWESTERN ISSAQUENA COUNTY...

LAT...LON 3412 9068 3363 9066 3360 9076 3311 9070
      3311 9091 3303 9092 3301 9206 3331 9195
      3340 9182 3340 9146 3357 9144 3352 9126
      3360 9116 3371 9121 3368 9104 3378 9115
      3379 9099 3397 9107 3397 9097 3412 9087

$$

ARC003-017-MSC011-151-260715-
/O.CON.KJAN.FF.W.0071.000000T0000Z-110426T0715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ASHLEY AR-CHICOT AR-BOLIVAR MS-WASHINGTON MS-
1132 PM CDT MON APR 25 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 215 AM CDT FOR
WASHINGTON...BOLIVAR...CHICOT AND ASHLEY COUNTIES...

AT 1131 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
DETECT A LINE OF SEVERE THUNDERSTORMS PRODUCING VERY HEAVY RAIN NEAR 
PORTLAND...OR 10 MILES SOUTHWEST OF LAKE VILLAGE. THE STORMS WERE 
MOVING EAST AT 30 MPH. ESTIMATED RADAR RAINFALL AMOUNTS...ON THE 
ORDER OF ONE TO THREE INCHES...HAVE OCCURRED IN THE PAST ONE TO TWO 
HOURS.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
MCMILLAN CORNER...SNYDER...OLD MILO...DEESON...SCOTT...LAMONT...
WINTERVILLE...TRIBBETT...WAYSIDE...MONTROSE...FOUNTAIN HILL...
DERMOTT...SHELBY...SHAW...RENOVA...MOUND BAYOU...METCALFE...LELAND...
GUNNISON...GREENVILLE...CLEVELAND...BOYLE AND BENOIT

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...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS...STREAMS...COUNTY ROADS AND FARMLAND ALONG BANKS.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF HIGHWAYS
AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE
BANKS OF CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO
FLOODING.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE WATER
COVERS THE ROAD. FIND ALTERNATE ROUTES AND MOVE TO HIGHER GROUND.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROADWAY.
THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY.
FIND AN ALTERNATE ROUTE AND MOVE TO HIGHER GROUND.

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 3412 9068 3363 9066 3360 9076 3311 9070
      3311 9091 3303 9092 3301 9206 3331 9195
      3340 9182 3340 9146 3357 9144 3352 9126
      3360 9116 3371 9121 3368 9104 3378 9115
      3379 9099 3397 9107 3397 9097 3412 9087

$$

MRM

650 
WGUS74 KJAN 260539
FFSJAN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1239 AM CDT TUE APR 26 2011

ARC003-017-MSC011-151-260715-
/O.CON.KJAN.FF.W.0071.000000T0000Z-110426T0715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ASHLEY AR-CHICOT AR-BOLIVAR MS-WASHINGTON MS-
1239 AM CDT TUE APR 26 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 215 AM CDT FOR
WASHINGTON...BOLIVAR...CHICOT AND ASHLEY COUNTIES...

AT 1238 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
DETECT THUNDERSTORMS PRODUCING VERY HEAVY RAIN NEAR PORTLAND...OR 13
MILES NORTH OF WILMOT. THE STORMS WERE NEARLY STATIONARY. ESTIMATED
RADAR RAINFALL AMOUNTS...ON THE ORDER OF ONE TO THREE INCHES...HAVE
OCCURRED IN THE PAST TWO TO THREE HOURS.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
MCMILLAN CORNER...SNYDER...OLD MILO...DEESON...SCOTT...LAMONT...
WINTERVILLE...TRIBBETT...WAYSIDE...MONTROSE...LAKE VILLAGE...FOUNTAIN
HILL...DERMOTT...SHELBY...SHAW...RENOVA...MOUND BAYOU...METCALFE...
LELAND...GUNNISON...GREENVILLE...CLEVELAND...BOYLE AND BENOIT

VERY HEAVY RAINFALL WILL CONTINUE OVER THE WARNED AREA FOR THE NEXT
THREE HOURS. WITH AN ADDITIONAL ONE TO THREE INCHES POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS...STREAMS...COUNTY ROADS AND FARMLAND ALONG BANKS.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF HIGHWAYS
AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE
BANKS OF CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO
FLOODING.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE WATER
COVERS THE ROAD. FIND ALTERNATE ROUTES AND MOVE TO HIGHER GROUND.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROADWAY.
THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY.
FIND AN ALTERNATE ROUTE AND MOVE TO HIGHER GROUND.

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 3412 9068 3363 9066 3360 9076 3311 9070
      3311 9091 3303 9092 3301 9206 3331 9195
      3340 9182 3340 9146 3357 9144 3352 9126
      3360 9116 3371 9121 3368 9104 3378 9115
      3379 9099 3397 9107 3397 9097 3412 9087

$$

MRM

250 
WGUS74 KJAN 260555
FFSJAN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1255 AM CDT TUE APR 26 2011

ARC003-017-MSC011-151-260605-
/O.CAN.KJAN.FF.W.0071.000000T0000Z-110426T0715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ASHLEY AR-CHICOT AR-BOLIVAR MS-WASHINGTON MS-
1255 AM CDT TUE APR 26 2011

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR WASHINGTON...
BOLIVAR...CHICOT AND ASHLEY COUNTIES...

LAT...LON 3412 9068 3363 9066 3360 9076 3311 9070
      3311 9091 3303 9092 3301 9206 3331 9195
      3340 9182 3340 9146 3357 9144 3352 9126
      3360 9116 3371 9121 3368 9104 3378 9115
      3379 9099 3397 9107 3397 9097 3412 9087

$$

MRM

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 25, 9:12 PM CDT	Special Weather Statement	JAN	Ashley, Chicot	68 min
Apr 25, 9:44 PM CDT	Severe Thunderstorm Warning	JAN	Ashley	46 min
Apr 25, 10:10 PM CDT	Severe Thunderstorm Warning	JAN	Ashley, Chicot	65 min
Apr 25, 10:28 PM CDT	Severe Thunderstorm Warning	JAN	Ashley	47 min
Apr 25, 11:15 PM CDT	Severe Thunderstorm Warning	JAN	Ashley, Chicot	45 min
Apr 25, 11:58 PM CDT	Severe Thunderstorm Warning	JAN	Ashley, Chicot	31 min
Apr 26, 7:36 AM CDT	Flash Flood Watch	JAN	Ashley, Chicot	32 hr
Apr 26, 1:48 PM CDT	Wind Advisory	JAN	Ashley, Chicot	29 hr
Apr 25, 9:55 PM CDT	Severe Thunderstorm Warning	JAN	Bolivar	65 min
Apr 25, 10:52 PM CDT	Severe Thunderstorm Warning	JAN	Bolivar, Sunflower, Washington	53 min
Apr 25, 11:39 PM CDT	Flash Flood Warning	JAN	Sunflower	108 min
Apr 25, 11:42 PM CDT	Severe Thunderstorm Warning	JAN	Bolivar, Leflore, Sunflower, Washington	48 min
Apr 26, 12:06 AM CDT	Severe Thunderstorm Warning	JAN	Carroll, Grenada, Leflore, Montgomery	54 min
Apr 26, 12:25 AM CDT	Flash Flood Warning	JAN	Carroll, Grenada, Leflore, Sunflower	92 min
Apr 26, 12:59 AM CDT	Special Weather Statement	JAN	Montgomery, Webster	31 min
Apr 26, 3:11 AM CDT	Special Weather Statement	JAN	Claiborne, Warren	74 min
Apr 26, 3:22 AM CDT	Special Weather Statement	JAN	Adams, Claiborne, Jefferson	38 min
Apr 26, 3:29 AM CDT	Tornado Warning	JAN	Bolivar	46 min
Apr 26, 4:04 AM CDT	Special Weather Statement	JAN	Adams, Claiborne, Franklin, Hinds, Jefferson, Warren	31 min
Apr 26, 4:12 AM CDT	Severe Thunderstorm Warning	JAN	Bolivar, Sunflower	33 min
Apr 26, 4:18 AM CDT	Severe Thunderstorm Warning	JAN	Adams, Claiborne, Copiah, Franklin, Jefferson, Lincoln	42 min
Apr 26, 5:13 AM CDT	Special Weather Statement	JAN	Lincoln	32 min
Apr 26, 5:42 AM CDT	Special Weather Statement	JAN	Jefferson Davis, Lawrence	58 min
Apr 26, 5:59 AM CDT	Severe Thunderstorm Warning	JAN	Covington, Jefferson Davis, Lawrence, Simpson	46 min
Apr 26, 6:10 AM CDT	High Wind Warning	JAN	Attala, Hinds, Leake, Madison, Rankin, Scott	110 min
Apr 26, 6:13 AM CDT	Tornado Warning	JAN	Covington, Jefferson Davis, Lawrence, Simpson, Smith	47 min
Apr 26, 6:19 AM CDT	Severe Thunderstorm Warning	JAN	Simpson, Smith	41 min
Apr 26, 6:33 AM CDT	Severe Thunderstorm Warning	JAN	Covington, Jefferson Davis, Jones	42 min
Apr 26, 7:01 AM CDT	Severe Thunderstorm Warning	JAN	Jasper, Jones, Smith	44 min
Apr 26, 7:07 AM CDT	Severe Thunderstorm Warning	JAN	Jasper, Newton	38 min
Apr 26, 7:13 AM CDT	Severe Thunderstorm Warning	JAN	Jones	62 min
Apr 26, 7:19 AM CDT	Special Weather Statement	JAN	Forrest, Lamar	31 min
Apr 26, 7:37 AM CDT	Severe Thunderstorm Warning	JAN	Clarke, Jasper, Lauderdale, Newton	53 min
Apr 26, 7:42 AM CDT	Special Weather Statement	JAN	Kemper	33 min
Apr 26, 8:05 AM CDT	Severe Thunderstorm Warning	JAN	Forrest, Lamar	40 min
Apr 26, 8:27 AM CDT	Special Weather Statement	JAN	Clay, Lowndes, Oktibbeha	73 min
Apr 26, 8:29 AM CDT	Severe Thunderstorm Warning	JAN	Clarke	31 min
Apr 26, 8:30 AM CDT	Special Weather Statement	JAN	Noxubee	30 min
Apr 26, 11:49 AM CDT	River Flood Warning	JAN	Carroll, Leflore	48 hr
Apr 26, 11:49 AM CDT	River Flood Warning	JAN	Sunflower	5 days
Apr 26, 6:20 PM CDT	Tornado Warning	JAN	Bolivar	37 min

Nearby

Flash Flood Warnings in Mississippi, 2011 Flash Flood Warnings in Arkansas, 2011 Every flash flood warning in 2011

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.