Alert archive / Mississippi / Flash Flood Warnings in 2012

Flash Flood Warning 9, NWS Jackson, MS

February 4, 2012Carroll County, Montgomery County, Mississippi

NWS Jackson, MS issued this flash flood warning at Feb 4, 2012, 10:47 AM CST for Carroll County, Montgomery County, Mississippi. It was in force for 3 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
Feb 4, 2012, 10:47 AM CST (16:47 UTC)
Expired
Feb 4, 2012, 1:45 PM CST
In force
3 hr
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Flood severity
None

Counties Carroll County, MS, Montgomery County, MS

The radar

The Columbus AFB radar (KGWX), 130 km from the middle of the area, began a volume at 16:47 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, 4.8 hours before the alert went out and 131 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-pSkew-T log-p diagram, Jackson, MS at 12:00Z on 2012-02-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 54 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 12:00Z on 2012-02-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 150 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
54 J/kg
Mixed-layer CIN
-73 J/kg
Mixed-layer LCL
516 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
150 m²/s²
0-3 km storm-relative helicity
183 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

387 
WGUS54 KJAN 041647
FFWJAN
MSC015-097-041945-
/O.NEW.KJAN.FF.W.0009.120204T1647Z-120204T1945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
1047 AM CST SAT FEB 4 2012

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CARROLL COUNTY IN NORTH CENTRAL MISSISSIPPI...
  THIS INCLUDES THE CITY OF BLACK HAWK...
  MONTGOMERY COUNTY IN NORTH CENTRAL MISSISSIPPI...
  THIS INCLUDES THE CITY OF WINONA...

* UNTIL 145 PM CST

* AT 1048 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED
  THUNDERSTORMS PRODUCING VERY HEAVY RAIN ALONG A LINE EXTENDING FROM
  WINONA TO 7 MILES EAST OF BLACK HAWK...MOVING EAST AT 15 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 DUCK
  HILL...VAIDEN...SWEATMAN...LODI...KILMICHAEL AND POPLAR CREEK

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...

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 3346 8950 3346 8943 3344 8943 3343 8946
      3328 8946 3329 8970 3322 8975 3334 9017
      3366 8985 3367 8951

$$

CME
1 follow-up statement
437 
WGUS74 KJAN 041913
FFSJAN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
113 PM CST SAT FEB 4 2012

MSC015-097-041945-
/O.CON.KJAN.FF.W.0009.000000T0000Z-120204T1945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MONTGOMERY MS-CARROLL MS-
113 PM CST SAT FEB 4 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 145 PM CST FOR
CARROLL AND MONTGOMERY COUNTIES...

AT 112 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
DETECT HEAVY RAIN NEAR KILMICHAEL...OR 7 MILES SOUTHEAST OF WINONA. 
THE RAIN AREA WAS NEARLY STATIONARY. ESTIMATED RADAR RAINFALL 
AMOUNTS...ON THE ORDER OF TWO TO THREE INCHES...HAVE OCCURRED IN THE 
PAST THREE HOURS.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LODI...
SWEATMAN...NORTH CARROLLTON AND DUCK HILL

RAINFALL WILL CONTINUE OVER THE WARNED AREA FOR THE NEXT FEW HOURS. 
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 3346 8950 3346 8943 3344 8943 3343 8946
      3328 8946 3329 8970 3322 8975 3334 9017
      3366 8985 3367 8951

$$

CME

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 3, 6:57 PM CSTRiver Flood WarningJANLeake63 hr
Feb 4, 2:34 AM CSTFlash Flood WatchJANAdams, Attala, Carroll, Claiborne, Copiah, Franklin and 13 more12 hr
Feb 4, 10:11 AM CSTSpecial Weather StatementJANCarroll, Holmes, Montgomery44 min
Feb 4, 10:16 AM CSTSpecial Weather StatementJANHumphreys, Issaquena, Sharkey, Yazoo44 min
Feb 4, 11:46 AM CSTSpecial Weather StatementJANMadison29 min
Feb 4, 12:09 PM CSTSpecial Weather StatementJANCopiah31 min
Feb 4, 12:10 PM CSTSpecial Weather StatementJANMadison30 min
Feb 4, 12:15 PM CSTSpecial Weather StatementJANRankin25 min
Feb 4, 12:32 PM CSTSpecial Weather StatementJANLeake33 min
Feb 4, 12:36 PM CSTSpecial Weather StatementJANMadison29 min
Feb 4, 12:37 PM CSTSpecial Weather StatementJANSimpson38 min
Feb 4, 12:44 PM CSTSpecial Weather StatementJANLawrence31 min
Feb 4, 1:05 PM CSTSpecial Weather StatementJANNeshoba30 min
Feb 4, 1:06 PM CSTSpecial Weather StatementJANScott29 min
Feb 4, 1:13 PM CSTSpecial Weather StatementJANSimpson62 min
Feb 4, 1:59 PM CSTSpecial Weather StatementJANSmith61 min
Feb 4, 4:54 PM CSTRiver Flood WarningJANMadison, Yazoo5 days

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.