Alert archive / Mississippi / Flash Flood Warnings in 2012

Flash Flood Warning 74, NWS Jackson, MS

July 13, 2012Jones County, Mississippi

NWS Jackson, MS issued this flash flood warning at Jul 13, 2012, 8:07 PM CDT for Jones County, Mississippi. It was in force for 84 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 13, 2012, 8:07 PM CDT (01:07 UTC)
Expired
Jul 13, 2012, 9:31 PM CDT
In force
84 min
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Flood severity
None

County Jones County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 119 km from the middle of the area, began a volume at 01:10 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 13, 8:45 PM CDTFLASH FLOODLaurel, MSTERESA STREET IN DOWNTOWN LAUREL FLOODED

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 00:00Z, 1.1 hours before the alert went out and 128 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 00:00Z on 2012-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 105 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 00:00Z on 2012-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 82 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
105 J/kg
Mixed-layer CIN
-75 J/kg
Mixed-layer LCL
1108 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
82 m²/s²
0-3 km storm-relative helicity
89 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

610 
WGUS54 KJAN 140107
FFWJAN
MSC067-140300-
/O.NEW.KJAN.FF.W.0074.120714T0107Z-120714T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
807 PM CDT FRI JUL 13 2012

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN JONES COUNTY IN SOUTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITIES OF...LAUREL...ELLISVILLE...

* UNTIL 1000 PM CDT

* AT 807 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED
  THUNDERSTORMS PRODUCING VERY HEAVY RAIN ALONG A LINE EXTENDING FROM
  SANDERSVILLE TO 6 MILES SOUTHEAST OF MOSELLE...MOVING NORTHWEST AT 
  15 MPH. ESTIMATED RADAR RAINFALL AMOUNTS...ON THE ORDER OF ONE TO  
  THREE INCHES...HAVE OCCURRED IN THE PAST HOUR.

* THE STORMS PRODUCING THUNDERSTORMS PRODUCING VERY HEAVY RAIN WILL
  OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE INDICATED COUNTY.

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 3144 8915 3144 8930 3181 8919 3182 8895
      3181 8894 3173 8893 3144 8894 3143 8895
      3143 8903 3144 8907 3143 8914

$$
BYB
2 follow-up statements
358 
WGUS74 KJAN 140148
FFSJAN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
848 PM CDT FRI JUL 13 2012

MSC067-140300-
/O.CON.KJAN.FF.W.0074.000000T0000Z-120714T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JONES MS-
848 PM CDT FRI JUL 13 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT FOR
EASTERN JONES COUNTY...

AT 847 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
DETECT THUNDERSTORMS PRODUCING VERY HEAVY RAIN ACROSS NORTHERN AND 
EASTERN PORTIONS OF JONES COUNTY...MOVING NORTHWEST AT 15 TO 20 MPH. 
ESTIMATED RADAR RAINFALL AMOUNTS...ON THE ORDER OF ONE TO THREE 
INCHES...HAVE OCCURRED IN THE PAST HOUR.

HEAVY RAINFALL WILL CONTINUE OVER THE WARNED AREA FOR THE NEXT HOUR 
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 3144 8894 3143 8895 3143 8903 3144 8907
      3143 8914 3144 8915 3163 8924 3181 8919
      3182 8899 3177 8894 3173 8893

$$

BYB
354 
WGUS74 KJAN 140231
FFSJAN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
931 PM CDT FRI JUL 13 2012

MSC067-140241-
/O.CAN.KJAN.FF.W.0074.000000T0000Z-120714T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JONES MS-
931 PM CDT FRI JUL 13 2012

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR EASTERN JONES
COUNTY...

LAT...LON 3144 8894 3143 8895 3143 8903 3144 8907
      3143 8914 3144 8915 3163 8924 3181 8919
      3182 8899 3177 8894 3173 8893

$$

BYB

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 13, 7:38 PM CDTSpecial Weather StatementJANLauderdale27 min
Jul 13, 7:41 PM CDTSpecial Weather StatementJANJones29 min
Jul 14, 3:10 PM CDTSpecial Weather StatementJANNewton30 min
Jul 14, 4:39 PM CDTSpecial Weather StatementJANChoctaw31 min
Jul 14, 5:22 PM CDTSpecial Weather StatementJANLeflore28 min
Jul 14, 5:25 PM CDTSevere Thunderstorm WarningJANLeflore50 min
Jul 14, 5:51 PM CDTSevere Thunderstorm WarningJANHinds39 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.