Alert archive / Mississippi / Flash Flood Warnings in 2012

Flash Flood Warning 21, NWS Jackson, MS

March 21, 2012Hinds County, Madison County, Rankin County, Mississippi

NWS Jackson, MS issued this flash flood warning at Mar 21, 2012, 5:22 PM CDT for Hinds County, Madison County, Rankin County, Mississippi. It was in force for 113 min. 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
Mar 21, 2012, 5:22 PM CDT (22:22 UTC)
Expired
Mar 21, 2012, 7:15 PM CDT
In force
113 min
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Flood severity
None

Counties Hinds County, MS, Madison County, MS, Rankin County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 24 km from the middle of the area, began a volume at 22:24 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

TimeReportWhereRemark
Mar 21, 6:05 PM CDTHEAVY RAIN 0Jackson, MSSOME PORTIONS OF BEASLEY ROAD PARTIALLY COVERED

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 12:00Z, 10.4 hours before the alert went out and 26 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 2012-03-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 143 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 2012-03-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 239 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
143 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
559 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
239 m²/s²
0-3 km storm-relative helicity
239 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

959 
WGUS54 KJAN 212222
FFWJAN
MSC049-089-121-220015-
/O.NEW.KJAN.FF.W.0021.120321T2222Z-120322T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
522 PM CDT WED MAR 21 2012

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN HINDS COUNTY IN CENTRAL MISSISSIPPI...
  THIS INCLUDES THE CITY OF JACKSON...
  MADISON COUNTY IN CENTRAL MISSISSIPPI...
  THIS INCLUDES THE CITIES OF...RIDGELAND...MADISON...CANTON...
  NORTHERN RANKIN COUNTY IN CENTRAL MISSISSIPPI...
  THIS INCLUDES THE CITIES OF...RICHLAND...PEARL...FLOWOOD...
  BRANDON...

* UNTIL 715 PM CDT

* AT 520 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED
  THUNDERSTORMS PRODUCING VERY HEAVY RAIN NEAR FANNIN...OR 7 MILES
  NORTH OF BRANDON. THE STORMS WERE MOVING TO THE NORTH BUT MOVING 
  OVER AREAS THAT HAVE ALREADY SEEN REPEATED RAINFALL. 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
  FARMHAVEN...ANNANDALE...SHARON...GLUCKSTADT...LEESBURG...GOSHEN
  SPRINGS AND PISGAH

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

RAINFALL AMOUNTS FROM ONE TO THREE INCHES A HOUR CAN CAUSE FLOODING
ON WOODGATE DRIVE NEAR THE CROSSGATES SWIM CLUB.

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 3219 8973 3218 9021 3258 9026 3276 8994
      3273 8973 3263 8973 3260 8978 3236 8973

$$

JC
1 follow-up statement
949 
WGUS74 KJAN 212312
FFSJAN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
612 PM CDT WED MAR 21 2012

MSC049-089-121-220015-
/O.CON.KJAN.FF.W.0021.000000T0000Z-120322T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
RANKIN MS-MADISON MS-HINDS MS-
612 PM CDT WED MAR 21 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR
NORTHEASTERN HINDS...MADISON AND NORTHERN RANKIN COUNTIES...

AT 612 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
DETECT THUNDERSTORMS PRODUCING VERY HEAVY RAIN OVER THE JACKSON METRO AREA.
THE STORMS WERE CONTINUING TO MOVE OVER THE SAME LOCATIONS. 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
FARMHAVEN...ANNANDALE...SHARON...GLUCKSTADT...LEESBURG...GOSHEN
SPRINGS...PISGAH...RIDGELAND AND CANTON

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 3219 8973 3218 9021 3258 9026 3276 8994
      3273 8973 3263 8973 3260 8978 3236 8973

$$

JC

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 21, 9:42 AM CDTSevere Thunderstorm WarningJANAdams40 min
Mar 21, 10:10 AM CDTSpecial Weather StatementJANJefferson60 min
Mar 21, 10:18 AM CDTSevere Thunderstorm WarningJANFranklin, Jefferson42 min
Mar 21, 10:20 AM CDTAreal Flood WarningJANAdams3 hr
Mar 21, 10:24 AM CDTTornado WarningJANJefferson27 min
Mar 21, 10:29 AM CDTTornado WarningJANClaiborne, Jefferson40 min
Mar 21, 10:35 AM CDTSevere Thunderstorm WarningJANFranklin, Lincoln55 min
Mar 21, 10:48 AM CDTSevere Thunderstorm WarningJANWarren57 min
Mar 21, 10:55 AM CDTTornado WarningJANClaiborne, Warren33 min
Mar 21, 11:05 AM CDTSpecial Weather StatementJANCopiah45 min
Mar 21, 11:17 AM CDTSevere Thunderstorm WarningJANCopiah58 min
Mar 21, 11:25 AM CDTSpecial Weather StatementJANHinds60 min
Mar 21, 11:32 AM CDTSevere Thunderstorm WarningJANIssaquena, Sharkey, Yazoo58 min
Mar 21, 11:34 AM CDTSpecial Weather StatementJANLawrence31 min
Mar 21, 11:40 AM CDTSpecial Weather StatementJANHinds60 min
Mar 21, 11:44 AM CDTSpecial Weather StatementJANLincoln31 min
Mar 21, 12:05 PM CDTSevere Thunderstorm WarningJANYazoo55 min
Mar 21, 12:09 PM CDTSevere Thunderstorm WarningJANLawrence51 min
Mar 21, 12:14 PM CDTSpecial Weather StatementJANForrest61 min
Mar 21, 12:20 PM CDTSpecial Weather StatementJANMadison60 min
Mar 21, 12:38 PM CDTSevere Thunderstorm WarningJANMarion37 min
Mar 21, 12:42 PM CDTSpecial Weather StatementJANRankin58 min
Mar 21, 12:56 PM CDTSpecial Weather StatementJANYazoo29 min
Mar 21, 1:10 PM CDTSevere Thunderstorm WarningJANCovington, Forrest, Jefferson Davis, Lamar, Marion65 min
Mar 21, 1:18 PM CDTSpecial Weather StatementJANHinds52 min
Mar 21, 1:26 PM CDTSpecial Weather StatementJANMadison49 min
Mar 21, 1:29 PM CDTSpecial Weather StatementJANSimpson, Smith61 min
Mar 21, 1:55 PM CDTSpecial Weather StatementJANRankin50 min
Mar 21, 2:05 PM CDTTornado WarningJANRankin21 min
Mar 21, 2:21 PM CDTSpecial Weather StatementJANScott59 min
Mar 21, 2:25 PM CDTTornado WarningJANScott30 min
Mar 21, 2:37 PM CDTSevere Thunderstorm WarningJANForrest, Lamar53 min
Mar 21, 2:47 PM CDTTornado WarningJANForrest, Lamar16 min
Mar 21, 3:03 PM CDTRiver Flood WarningJANAttala, Holmes8 days
Mar 21, 3:22 PM CDTSpecial Weather StatementJANNeshoba, Winston58 min
Mar 21, 3:28 PM CDTTornado WarningJANForrest, Jones, Lamar44 min
Mar 21, 3:32 PM CDTSevere Thunderstorm WarningJANKemper, Neshoba, Noxubee, Winston58 min
Mar 21, 4:24 PM CDTSpecial Weather StatementJANClay, Oktibbeha61 min
Mar 21, 4:45 PM CDTSpecial Weather StatementJANCovington45 min
Mar 21, 5:06 PM CDTSevere Thunderstorm WarningJANCovington, Jones39 min
Mar 21, 5:09 PM CDTTornado WarningJANJones36 min
Mar 21, 5:34 PM CDTTornado WarningJANJasper44 min
Mar 21, 6:34 PM CDTFlash Flood WarningJANForrest, Lamar116 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.