Alert archive / Mississippi / Flash Flood Warnings in 2003

Flash Flood Warning 19, NWS Mobile, AL

June 30, 2003George County, Perry County, Stone County, Mississippi

NWS Mobile, AL issued this flash flood warning at Jun 30, 2003, 9:06 PM CDT for George County, Perry County, Stone County, Mississippi. It was in force for 6 hr. 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 30, 2003, 9:06 PM CDT (02:06 UTC)
Expired: Jul 1, 2003, 3:00 AM CDT
In force: 6 hr
Issued by: NWS Mobile, AL
Area: Counties, with a storm outline in the text

Counties George County, MS, Perry County, MS, Stone County, MS

The radar

The Mobile radar (KMOB), 72 km from the middle of the area, began a volume at 02:07 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

Slidell Radar S, LA (KSIL), launched 00:00Z, 2.1 hours before the alert went out and 109 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: 428 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 575 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 121 m²/s²
0-3 km storm-relative helicity: 150 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 KMOB 010207
FFWMOB
MSC039-111-131-010800-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
906 PM CDT MON JUN 30 2003

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  GEORGE COUNTY IN SOUTHEAST MISSISSIPPI
  THIS INCLUDES THE CITY OF LUCEDALE
  PERRY COUNTY IN SOUTHEAST MISSISSIPPI
  THIS INCLUDES THE CITY OF NEW AUGUSTA
  STONE COUNTY IN SOUTHEAST MISSISSIPPI
  THIS INCLUDES THE CITY OF WIGGINS

* UNTIL 300 AM CDT

* AT 900 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY
  FROM TROPICAL STORM BILL WILL CONTINUE TO EFFECT PORTIONS OF
  SOUTHEAST MISSISSIPPI AS THE RAIN BANDS MOVE NORTHEAST AT AROUND
  20 MPH. RADAR AMOUNTS BETWEEN 1 TO 2 INCHES AN HOUR WILL BE
  COMMON THROUGH MIDNIGHT BEFORE TAPERING OFF.

EXCESSIVE RUNOFF FROM THIS TROPICAL STORM WILL CAUSE FLASH FLOODING
OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES.
ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS
AND STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY.
NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK
HIGHER GROUND.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE.

LAT...LON 3100 8884 3098 8845 3073 8844 3074 8886
          3067 8887 3068 8935 3093 8932 3096 8915
          3145 8915 3145 8886

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 30, 9:17 PM CDT	Tornado Warning	MOB	George, Greene	43 min
Jun 30, 10:13 PM CDT	Tornado Warning	MOB	George, Greene	47 min
Jul 1, 12:22 AM CDT	Flash Flood Warning	MOB	Greene, Wayne	4 hr

Nearby

Flash Flood Warnings in Mississippi, 2003 Every flash flood warning in 2003

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.