Alert archive / Mississippi / Flash Flood Warnings in 2002

Flash Flood Warning 12, NWS Mobile, AL

September 26, 2002Stone County, Mississippi

NWS Mobile, AL issued this flash flood warning at Sep 26, 2002, 2:34 AM CDT for Stone County, Mississippi. It was in force for 3 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: Sep 26, 2002, 2:34 AM CDT (07:34 UTC)
Expired: Sep 26, 2002, 5:30 AM CDT
In force: 3 hr
Issued by: NWS Mobile, AL
Area: Counties, with a storm outline in the text

County Stone County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 7.6 hours before the alert went out and 79 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: 201 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 461 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 365 m²/s²
0-3 km storm-relative helicity: 455 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.4

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KMOB 260734
FFWMOB
MSC131-261030-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
231 AM CDT THU SEP 26 2002

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  STONE COUNTY IN SOUTHEAST MISSISSIPPI
  THIS INCLUDES THE CITY OF WIGGINS

* UNTIL 530 AM CDT

* AT 228 AM CDT...WEATHER SERVICE RADAR INDICATED THREE TO FOUR 
INCHES  OF RAIN OVER SOUTHWEST STONE COUNTY SINCE 130 AM CDT.  
ALSO...NEARLY FIVE INCHES OF RAIN HAS FALLEN SINCE MIDNIGHT.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES AND
ARROYOS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

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 3070 8932 3070 8890 3090 8887 3090 8931

1 follow-up statement

000 
WGUS74 KMOB 260918
FFSMOB
MSC131-261115-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
417 AM CDT THU SEP 26 2002

...A FLASH FLOOD WARNING CONTINUES IN EFFECT UNTIL 530 AM CDT FOR 
THE FOLLOWING COUNTY...

STONE COUNTY IN SOUTHEAST MISSISSIPPI.

AT 412 AM CDT...NWS DOPPLER WEATHER RADAR IN MOBILE ALABAMA 
INDICATES THAT NEARLY FIVE INCHES OF RAIN HAS FALLEN IN SOUTHWEST 
STONE COUNTY MISSISSIPPI SINCE 230 AM CDT.  THROUGH 530 AM 
CDT...ANOTHER INCH TO AN INCH AND ONE HALF OF RAIN IS POSSIBLE OVER 
THE SAME LOCATIONS THAT HAVE ALREADY EXPERIENCED FLOODING. THE 
SOUTHWEST PORTION OF THE COUNTY WILL REMAIN ESPECIALLY SUSCEPTIBLE 
TO FLOODING.

REMEMBER...A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR
OCCURRING. RESIDENTS LIVING IN AREAS SUBJECT TO FLOODING SHOULD TAKE
IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. IF FLASH FLOODING
IS OBSERVED...MOVE QUICKLY TO HIGHER GROUND AND NEVER DRIVE INTO AN
AREA WHERE WATER COVERS THE ROAD.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 26, 6:25 AM CDT	Tornado Warning	MOB	George	7 days

Nearby

Flash Flood Warnings in Mississippi, 2002 Every flash flood warning in 2002

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.