Alert archive / Mississippi / Flash Flood Warnings in 2012

Flash Flood Warning 75, NWS Jackson, MS

July 15, 2012Hinds County, Warren County, Yazoo County, Mississippi

NWS Jackson, MS issued this flash flood warning at Jul 15, 2012, 6:03 PM CDT for Hinds County, Warren County, Yazoo County, Mississippi. It was in force for 85 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
Jul 15, 2012, 6:03 PM CDT (23:03 UTC)
Expired
Jul 15, 2012, 7:28 PM CDT
In force
85 min
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Flood severity
None

Counties Hinds County, MS, Warren County, MS, Yazoo County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 68 km from the middle of the area, began a volume at 23:03 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
Jul 15, 6:58 PM CDTFLASH FLOODUtica, MSBRIDGE UNDERWATER

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, 11.1 hours before the alert went out and 58 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 2012-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1094 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 2012-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 67 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
1094 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
619 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
51 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.

571 
WGUS54 KJAN 152303
FFWJAN
MSC049-149-163-160100-
/O.NEW.KJAN.FF.W.0075.120715T2303Z-120716T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
603 PM CDT SUN JUL 15 2012

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN HINDS COUNTY IN CENTRAL MISSISSIPPI...
  SOUTHWESTERN YAZOO COUNTY IN CENTRAL MISSISSIPPI...
  EASTERN WARREN COUNTY IN WEST CENTRAL MISSISSIPPI...

* UNTIL 800 PM CDT

* AT 603 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED
  THUNDERSTORMS PRODUCING VERY HEAVY RAIN 6 MILES SOUTH OF EDWARDS...
  OR 15 MILES SOUTHWEST OF CLINTON...MOVING NORTH AT 20 MPH.
  ESTIMATED RADAR RAINFALL AMOUNTS...ON THE ORDER OF ONE TO THREE    
  INCHES...HAVE OCCURRED IN THE PAST HOUR. WHILE THESE THUNDERSTORMS 
   ARE MOVING...ADDITIONAL STRORMS CONTINUE TO MOVE OVER THE SAME    
  AREAS. 

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  BOVINA...FLOWERS...YOUNGTON...OAK RIDGE AND PHOENIX

VERY HEAVY RAINFALL WILL CONTINUE OVER THE WARNED AREA FOR THE NEXT
TWO 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 3257 9077 3257 9074 3256 9073 3258 9072
      3263 9052 3206 9048 3205 9071

$$

JC
2 follow-up statements
888 
WGUS74 KJAN 152351
FFSJAN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
651 PM CDT SUN JUL 15 2012

MSC049-149-163-160100-
/O.CON.KJAN.FF.W.0075.000000T0000Z-120716T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WARREN MS-HINDS MS-YAZOO MS-
651 PM CDT SUN JUL 15 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 PM CDT FOR
SOUTHWESTERN YAZOO...NORTHWESTERN HINDS AND NORTHEASTERN WARREN
COUNTIES...

AT 651 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
DETECT THUNDERSTORMS PRODUCING VERY HEAVY RAIN NEAR EDWARDS...OR 13
MILES WEST OF CLINTON...MOVING NORTH AT 20 MPH. ESTIMATED RADAR
RAINFALL AMOUNTS...ON THE ORDER OF ONE TO THREE INCHES...HAVE
OCCURRED IN THE PAST HOUR.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
FLOWERS...YOUNGTON...OAK RIDGE AND PHOENIX

VERY HEAVY RAINFALL WILL CONTINUE OVER THE WARNED AREA FOR THE NEXT 
HOUR. WITH AN ADDITIONAL ONE TO TWO 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 9068 3256 9073 3258 9072 3261 9054
      3231 9050 3223 9049

$$

JC
445 
WGUS74 KJAN 160028
FFSJAN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
728 PM CDT SUN JUL 15 2012

MSC049-149-163-160038-
/O.CAN.KJAN.FF.W.0075.000000T0000Z-120716T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WARREN MS-HINDS MS-YAZOO MS-
728 PM CDT SUN JUL 15 2012

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SOUTHWESTERN
YAZOO...NORTHWESTERN HINDS AND NORTHEASTERN WARREN COUNTIES...

RAINFALL HAS DIMINISHED AND MOVED OUT OF THE WARNED AREA. 

LAT...LON 3219 9068 3256 9073 3258 9072 3261 9054
      3231 9050 3223 9049

$$

JC

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 15, 2:31 PM CDTSpecial Weather StatementJANGrenada19 min
Jul 15, 3:46 PM CDTSpecial Weather StatementJANAttala29 min
Jul 15, 5:40 PM CDTSpecial Weather StatementJANSharkey30 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.