Alert archive / Alabama / Flash Flood Warnings in 2002

Flash Flood Warning 9, NWS Mobile, AL

September 25, 2002Baldwin County, Mobile County, Alabama

NWS Mobile, AL issued this flash flood warning at Sep 25, 2002, 9:01 PM CDT for Baldwin County, Mobile County, Alabama. It was in force for 4 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 25, 2002, 9:01 PM CDT (02:01 UTC)
Expired: Sep 26, 2002, 1:00 AM CDT
In force: 4 hr
Issued by: NWS Mobile, AL
Area: Counties, with a storm outline in the text

Counties Baldwin County, AL, Mobile County, AL

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 2.0 hours before the alert went out and 162 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 260201
FFWMOB
ALC003-097-260600-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
855 PM CDT WED SEP 25 2002

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BALDWIN COUNTY IN SOUTHWEST ALABAMA
  MOBILE COUNTY IN SOUTHWEST ALABAMA
  
* UNTIL 100 AM CDT

* AT 850 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED            
  THE LEADING EDGE OF A BAND OF VERY HEAVY RAIN ASSOCIATED WITH      
  TROPICAL STORM ISIDORE MOVING ACROSS MOBILE AND BALDWIN COUNTIES   
  OF ALABAMA.  THIS AREA OF RAINFALL EXTENDS NEARLY 60 MILES         
  OFFSHORE...AND WILL CONTINUE TO MOVE NORTH INTO MOBILE AND         
  BALDWIN COUNTIES INTO THE EARLY MORNING HOURS.  RAINFALL RATES     
  WILL APPROACH 2 INCHES PER HOUR OVER THE NEXT COUPLE OF            
  HOURS...WHICH WILL LIKELY RESULT IN FLOODING OF LOW LYING AND POOR 
  DRAINAGE AREAS...AS WELL AS STANDING WATERS ON MANY AREA           
  ROADWAYS.  
    
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.  DONT DRIVE 
INTO AREAS WHERE WATER COVERS THE ROADWAY.  

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 IN
MOBILE.

LAT...LON 3033 8834 3033 8749 3114 8775 3106 8841

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 25, 7:30 PM CDT	Tornado Warning	MOB	Baldwin	14 hr
Sep 26, 6:25 AM CDT	Tornado Warning	MOB	Mobile	7 days

Nearby

Flash Flood Warnings in Alabama, 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.