Alert archive / Mississippi / Flash Flood Warnings in 2012

Flash Flood Warning 79, NWS Jackson, MS

July 18, 2012Hinds County, Madison County, Rankin County, Mississippi

NWS Jackson, MS issued this flash flood warning at Jul 18, 2012, 6:53 PM CDT for Hinds County, Madison County, Rankin County, Mississippi. It was in force for 93 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
Jul 18, 2012, 6:53 PM CDT (23:53 UTC)
Expired
Jul 18, 2012, 8:26 PM CDT
In force
93 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), 27 km from the middle of the area, began a volume at 23:52 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, 11.9 hours before the alert went out and 19 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 2012-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2263 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 2012-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 square meters per square second.1939Sfc1 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
2263 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
891 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
43 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.

119 
WGUS54 KJAN 182353
FFWJAN
MSC049-089-121-190145-
/O.NEW.KJAN.FF.W.0079.120718T2353Z-120719T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
653 PM CDT WED JUL 18 2012

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN HINDS COUNTY IN CENTRAL MISSISSIPPI...
  THIS INCLUDES THE CITIES OF...BYRAM...JACKSON...CLINTON...
  SOUTH CENTRAL MADISON COUNTY IN CENTRAL MISSISSIPPI...
  THIS INCLUDES THE CITIES OF...RIDGELAND...MADISON...
  WESTERN RANKIN COUNTY IN CENTRAL MISSISSIPPI...
  THIS INCLUDES THE CITIES OF...STAR...RICHLAND...PEARL...FLOWOOD...
  BRANDON...

* UNTIL 845 PM CDT

* AT 652 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED
  THUNDERSTORMS PRODUCING VERY HEAVY RAIN ALONG A LINE EXTENDING FROM
  7 MILES NORTHWEST OF ANNANDALE TO FLOWOOD TO FLORENCE MOVING WEST  
  AT 10 MPH. ESTIMATED RADAR RAINFALL AMOUNTS...ON THE ORDER OF ONE  
  TO TWO INCHES...HAVE OCCURRED IN THE PAST HOUR.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  POCAHONTAS...WHITES...TERRY...BROWNSVILLE...BOLTON...RAYMOND AND
  DRY GROVE

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 3224 9049 3243 9054 3255 9006 3232 8996
      3205 8995 3205 9042

$$

BK
2 follow-up statements
761 
WGUS74 KJAN 190034
FFSJAN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
734 PM CDT WED JUL 18 2012

MSC049-089-121-190145-
/O.CON.KJAN.FF.W.0079.000000T0000Z-120719T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
RANKIN MS-MADISON MS-HINDS MS-
734 PM CDT WED JUL 18 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 845 PM CDT FOR
EASTERN HINDS...SOUTH CENTRAL MADISON AND WESTERN RANKIN COUNTIES...

AT 732 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
DETECT THUNDERSTORMS PRODUCING VERY HEAVY RAIN ALONG A LINE EXTENDING
FROM POCAHONTAS TO 6 MILES SOUTHWEST OF STAR...MOVING SOUTHWEST AT 
10 MPH. ESTIMATED RADAR RAINFALL AMOUNTS...ON THE ORDER OF ONE TO 
THREE INCHES...HAVE OCCURRED IN THE PAST HOUR OVER PORTIONS OF THE 
CITY OF JACKSON...AS WELL AS SOUTH CENTRAL MADISON COUNTY AND 
WESTERN RANKIN COUNTY.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
WHITES...BYRAM...BOLTON...TERRY...RAYMOND AND DRY GROVE

VERY HEAVY RAINFALL WILL CONTINUE OVER THE WARNED AREA FOR THE NEXT 
HOUR WITH AN ADDITIONAL ONE TO THREE INCHES POSSIBLE...ESPECIALLY 
OVER EASTERN HINDS AND SOUTHWESTERN RANKIN COUNTIES.

RAINFALL AMOUNTS FROM ONE TO THREE INCHES AN HOUR CAN CAUSE FLOODING
ON INDUSTRIAL DRIVE IN THE CITY OF RICHLAND.

RAINFALL AMOUNTS FROM ONE TO THREE INCHES AN 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 3224 9049 3237 9052 3249 9030 3255 9006
      3232 8996 3205 8995 3205 9042

$$

BYB
558 
WGUS74 KJAN 190126
FFSJAN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
826 PM CDT WED JUL 18 2012

MSC049-089-121-190137-
/O.CAN.KJAN.FF.W.0079.000000T0000Z-120719T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
RANKIN MS-MADISON MS-HINDS MS-
826 PM CDT WED JUL 18 2012

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR EASTERN HINDS...
SOUTH CENTRAL MADISON AND WESTERN RANKIN COUNTIES...

LAT...LON 3224 9049 3237 9052 3249 9030 3255 9006
      3232 8996 3205 8995 3205 9042

$$

BK

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 17, 7:29 PM CDTSpecial Weather StatementJANClarke31 min
Jul 17, 8:56 PM CDTSpecial Weather StatementJANForrest44 min
Jul 17, 10:05 PM CDTSpecial Weather StatementJANClarke45 min
Jul 17, 10:34 PM CDTFlash Flood WarningJANClarke116 min
Jul 17, 11:09 PM CDTSpecial Weather StatementJANJasper46 min
Jul 18, 12:13 PM CDTSpecial Weather StatementJANClay, Kemper, Lowndes, Neshoba, Noxubee, Oktibbeha and 1 more72 min
Jul 18, 1:22 PM CDTSpecial Weather StatementJANClarke, Lauderdale58 min
Jul 18, 1:38 PM CDTSevere Thunderstorm WarningJANLauderdale52 min
Jul 18, 2:15 PM CDTSpecial Weather StatementJANNeshoba30 min
Jul 18, 2:22 PM CDTSpecial Weather StatementJANWinston33 min
Jul 18, 2:24 PM CDTSpecial Weather StatementJANClarke31 min
Jul 18, 2:28 PM CDTSpecial Weather StatementJANLowndes32 min
Jul 18, 2:30 PM CDTSpecial Weather StatementJANSmith30 min
Jul 18, 2:34 PM CDTSpecial Weather StatementJANLowndes31 min
Jul 18, 2:59 PM CDTSpecial Weather StatementJANWebster31 min
Jul 18, 3:04 PM CDTSpecial Weather StatementJANJasper31 min
Jul 18, 3:07 PM CDTSevere Thunderstorm WarningJANClarke, Jasper38 min
Jul 18, 3:26 PM CDTSevere Thunderstorm WarningJANChoctaw, Oktibbeha, Webster35 min
Jul 18, 3:31 PM CDTSpecial Weather StatementJANWebster29 min
Jul 18, 3:44 PM CDTSpecial Weather StatementJANForrest31 min
Jul 18, 3:44 PM CDTSevere Thunderstorm WarningJANMontgomery, Webster21 min
Jul 18, 4:15 PM CDTSpecial Weather StatementJANCovington30 min
Jul 18, 4:30 PM CDTSpecial Weather StatementJANLeake30 min
Jul 18, 4:42 PM CDTSpecial Weather StatementJANForrest28 min
Jul 18, 4:54 PM CDTSpecial Weather StatementJANAttala31 min
Jul 18, 4:55 PM CDTFlash Flood WarningJANForrest2 hr
Jul 18, 4:58 PM CDTSpecial Weather StatementJANSmith32 min
Jul 18, 5:03 PM CDTSpecial Weather StatementJANLeake32 min
Jul 18, 5:39 PM CDTSpecial Weather StatementJANHolmes31 min
Jul 18, 5:43 PM CDTFlash Flood WarningJANLamar88 min
Jul 18, 5:55 PM CDTSpecial Weather StatementJANRankin30 min
Jul 18, 6:24 PM CDTSpecial Weather StatementJANHinds41 min
Jul 18, 6:26 PM CDTSpecial Weather StatementJANMadison29 min
Jul 18, 6:47 PM CDTSpecial Weather StatementJANRankin28 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.