Alert archive / Mississippi / Flash Flood Warnings in 2007

Flash Flood Warning 13, NWS Jackson, MS

August 30, 2007Lauderdale County, Mississippi

NWS Jackson, MS issued this flash flood warning at Aug 30, 2007, 4:03 PM CDT for Lauderdale County, Mississippi. It was in force for 117 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
Aug 30, 2007, 4:03 PM CDT (21:03 UTC)
Expired
Aug 30, 2007, 6:00 PM CDT
In force
117 min
Issued by
NWS Jackson, MS
Area
Counties, with a storm outline in the text
Flood severity
None

County Lauderdale County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 121 km from the middle of the area, began a volume at 21:04 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, 9.1 hours before the alert went out and 130 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 2007-08-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1479 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 2007-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 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
1479 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
877 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
3 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.

000 
WGUS54 KJAN 302105
FFWJAN
MSC075-302300-
/X.NEW.KJAN.FF.W.0013.070830T2103Z-070830T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
403 PM CDT THU AUG 30 2007

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  LAUDERDALE COUNTY IN EAST CENTRAL MISSISSIPPI...
  THIS INCLUDES THE CITIES OF...LAUDERDALE...MERIDIAN STATION...
  MERIDIAN...

* UNTIL 600 PM CDT

* AT 403 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED FLASH   
FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA. STREETS WERE 
FLOODED IN THE MERIDIAN AREA. RAINFALL RATES WERE NEAR 2 INCHES AN 
HOUR. SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DRIFT SOUTHEAST 
ACROSS THE AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MARTIN...
  SUQUALENA...MEEHAN...KEWANEE...TOOMSUBA...ALAMUCHA...NELLIEBURG...
  MARION AND COLLINSVILLE

ADDITIONAL RAINFALL AMOUNTS FROM 1 TO 2 INCHES ARE POSSIBLE IN THE 
WARNED AREA.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

LAT...LON 3255 8888 3255 8843 3223 8845 3224 8888
TIME...MOT...LOC 2103Z 180DEG 0KT 3232 8870

$$
7
1 follow-up statement
000 
WGUS74 KJAN 302300
FFSJAN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
555 PM CDT THU AUG 30 2007

MSC075-302315-
/X.EXP.KJAN.FF.W.0013.000000T0000Z-070830T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LAUDERDALE MS-
555 PM CDT THU AUG 30 2007

...THE FLASH FLOOD WARNING WILL EXPIRE AT 600 PM CDT FOR LAUDERDALE
COUNTY...

AT 550 PM...DOPPLER RADAR INDICATED LIGHT TO MODERATE RAINS OVER THE 
EASTERN PORTIONS OF THE COUNTY TAPERING OFF TO SPRINKLES IN THE 
WEST. THE RAINS WERE MOVING SOUTHEAST AT 10 MPH AND SHOULD END 
BEFORE 630 PM. ANY ADDITIONAL AMOUNTS SHOULD BE LESS THAN ONE TENTH
OF AN INCH AND STREET FLOODING SHOULD SUBSIDE. 

RADAR ESTIMATED RAINFALL AMOUNTS OF 2 TO 3 INCHES LIKELY OCCURRED 
OVER THE CITY OF MERIDIAN AND POINTS TO THE SOUTHEAST SINCE 3 PM.
THE MERIDIAN AIRPORT HAS REPORTED JUST UNDER 2 INCHES OF 
RAINFALL.     

LAT...LON 3255 8888 3255 8843 3223 8845 3224 8888
TIME...MOT...LOC 2252Z 180DEG 0KT 3232 8870

$$

40

Nearby

Flash Flood Warnings in Mississippi, 2007Every flash flood warning in 2007

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.