Alert archive / Mississippi / Flash Flood Warnings in 2011

Flash Flood Warning 90, NWS Jackson, MS

June 7, 2011Franklin County, Mississippi

NWS Jackson, MS issued this flash flood warning at Jun 7, 2011, 4:35 PM CDT for Franklin County, Mississippi. It was in force for 115 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: Jun 7, 2011, 4:35 PM CDT (21:35 UTC)
Expired: Jun 7, 2011, 6:30 PM CDT
In force: 115 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Flood severity: None

County Franklin County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 9.6 hours before the alert went out and 133 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1725 J/kg
Mixed-layer CIN: -95 J/kg
Mixed-layer LCL: 1495 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: -9 m²/s²
0-3 km storm-relative helicity: -4 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.4

Open this sounding in Storm Lab

The text

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

320 
WGUS54 KJAN 072135
FFWJAN
MSC037-072330-
/O.NEW.KJAN.FF.W.0090.110607T2135Z-110607T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
435 PM CDT TUE JUN 7 2011

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  FRANKLIN COUNTY IN SOUTHWEST MISSISSIPPI...

* UNTIL 630 PM CDT

* AT 435 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED
  THUNDERSTORMS PRODUCING VERY HEAVY RAIN NEAR KIRBY...OR 24 MILES
  EAST OF NATCHEZ...MOVING NORTHWEST AT 10 MPH. ESTIMATED RADAR
  RAINFALL AMOUNTS...ON THE ORDER OF TWO TO FOUR INCHES...HAVE
  OCCURRED IN THE PAST TWO HOURS.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  HAMBURG

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.

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS
FLOODED ROADS. FIND ALTERNATE ROUTES. IT ONLY TAKES A FEW INCHES OF
SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

&&

LAT...LON 3135 9116 3161 9115 3162 9098 3161 9072
      3135 9071 3135 9097 3134 9098 3135 9102
      3133 9107 3133 9113

$$

JA

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 6, 7:09 PM CDT	Special Weather Statement	JAN	Wilkinson	51 min
Jun 6, 7:24 PM CDT	Severe Thunderstorm Warning	JAN	Adams	36 min
Jun 7, 1:28 PM CDT	Special Weather Statement	JAN	Lincoln	32 min
Jun 7, 1:40 PM CDT	Special Weather Statement	JAN	Forrest	30 min
Jun 7, 1:46 PM CDT	Severe Thunderstorm Warning	JAN	Forrest, Lamar	59 min
Jun 7, 1:50 PM CDT	Special Weather Statement	JAN	Simpson	30 min
Jun 7, 2:05 PM CDT	Severe Thunderstorm Warning	JAN	Simpson	40 min
Jun 7, 2:06 PM CDT	Severe Thunderstorm Warning	JAN	Copiah	54 min
Jun 7, 2:26 PM CDT	Severe Thunderstorm Warning	JAN	Jones	49 min
Jun 7, 2:41 PM CDT	Severe Thunderstorm Warning	JAN	Jefferson	49 min
Jun 7, 2:41 PM CDT	Severe Thunderstorm Warning	JAN	Covington, Forrest, Lamar	64 min
Jun 7, 2:48 PM CDT	Flash Flood Warning	JAN	Forrest, Lamar	117 min
Jun 7, 2:58 PM CDT	Severe Thunderstorm Warning	JAN	Copiah, Hinds	47 min
Jun 7, 2:58 PM CDT	Severe Thunderstorm Warning	JAN	Lawrence, Lincoln	47 min
Jun 7, 3:03 PM CDT	Special Weather Statement	JAN	Simpson	32 min
Jun 7, 3:14 PM CDT	Severe Thunderstorm Warning	JAN	Jasper, Jones	43 min
Jun 7, 3:26 PM CDT	Severe Thunderstorm Warning	JAN	Covington	49 min
Jun 7, 3:28 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Rankin	47 min
Jun 7, 3:35 PM CDT	Severe Thunderstorm Warning	JAN	Jefferson Davis, Lawrence	55 min
Jun 7, 3:36 PM CDT	Severe Thunderstorm Warning	JAN	Adams, Franklin, Jefferson	54 min
Jun 7, 3:42 PM CDT	Severe Thunderstorm Warning	JAN	Forrest, Lamar	48 min
Jun 7, 3:47 PM CDT	Severe Thunderstorm Warning	JAN	Franklin, Jefferson	58 min
Jun 7, 3:56 PM CDT	Severe Thunderstorm Warning	JAN	Franklin, Lincoln	64 min
Jun 7, 4:03 PM CDT	Severe Thunderstorm Warning	JAN	Simpson	57 min
Jun 7, 4:04 PM CDT	Severe Thunderstorm Warning	JAN	Jefferson Davis, Lawrence, Marion	56 min
Jun 7, 4:13 PM CDT	Severe Thunderstorm Warning	JAN	Rankin	62 min
Jun 7, 4:15 PM CDT	Flash Flood Warning	JAN	Forrest, Lamar	87 min
Jun 7, 4:20 PM CDT	Severe Thunderstorm Warning	JAN	Clarke, Jasper	35 min
Jun 7, 4:29 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Warren	46 min
Jun 7, 4:44 PM CDT	Severe Thunderstorm Warning	JAN	Scott, Smith	61 min
Jun 7, 5:11 PM CDT	Severe Thunderstorm Warning	JAN	Lauderdale	49 min
Jun 7, 5:30 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Madison	32 min
Jun 7, 5:44 PM CDT	Severe Thunderstorm Warning	JAN	Scott	46 min
Jun 7, 6:09 PM CDT	Special Weather Statement	JAN	Madison	31 min
Jun 7, 6:15 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Leake, Madison, Yazoo	45 min
Jun 7, 6:30 PM CDT	Severe Thunderstorm Warning	JAN	Leake, Neshoba, Scott	49 min
Jun 7, 6:59 PM CDT	Severe Thunderstorm Warning	JAN	Holmes	24 min

Nearby

Flash Flood Warnings in Mississippi, 2011 Every flash flood warning in 2011

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.