Alert archive / Alabama / Flash Flood Warnings in 2003

Flash Flood Warning 27, NWS Mobile, AL

July 17, 2003Conecuh County, Alabama

NWS Mobile, AL issued this flash flood warning at Jul 17, 2003, 12:03 AM CDT for Conecuh County, Alabama. It was in force for 87 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: Jul 17, 2003, 12:03 AM CDT (05:03 UTC)
Expired: Jul 17, 2003, 1:30 AM CDT
In force: 87 min
Issued by: NWS Mobile, AL
Area: Counties, with a storm outline in the text

County Conecuh County, AL

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 5.1 hours before the alert went out and 192 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: 2737 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 987 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 10 m²/s²
0-3 km storm-relative helicity: 40 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.3

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KMOB 170505
FFWMOB
ALC035-170630-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1203 AM CDT THU JUL 17 2003

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CONECUH COUNTY IN SOUTH CENTRAL ALABAMA
  THIS INCLUDES THE CITY OF EVERGREEN

* UNTIL 130 AM CDT

* AT 1203 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED NUMEROUS  
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAIN OVER                
  CONECUH COUNTY.
  
* STORMS WITH HEAVY RAINFALL WILL AFFECT AREAS IN AND AROUND...      
  EVERGREEN...OWASSA...CHINA...REPTON...LYEFFION...AND FAIRNELSON    
  THROUGH 100 AM CDT.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS 
IMMINENT. 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.

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. 
TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.

CALL 1-800-284-9054 TO REPORT SEVERE WEATHER.

LAT...LON 3145 8719 3132 8704 3145 8675 3165 8698

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 16, 8:25 PM CDT	Severe Thunderstorm Warning	MOB	Clarke	35 min
Jul 16, 8:32 PM CDT	Severe Thunderstorm Warning	MOB	Washington	43 min
Jul 16, 9:36 PM CDT	Severe Thunderstorm Warning	MOB	Covington, Crenshaw	54 min
Jul 16, 10:00 PM CDT	Special Marine Warning	MOB		2 hr
Jul 16, 11:05 PM CDT	Severe Thunderstorm Warning	MOB	Conecuh	25 min
Jul 16, 11:08 PM CDT	Special Marine Warning	MOB		112 min
Jul 16, 11:08 PM CDT	Special Marine Warning	MOB		112 min
Jul 17, 2:18 PM CDT	Special Marine Warning	MOB		72 min
Jul 17, 3:10 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin	35 min
Jul 17, 3:22 PM CDT	Special Marine Warning	MOB		53 min
Jul 17, 3:22 PM CDT	Special Marine Warning	MOB		53 min
Jul 17, 3:49 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin	26 min
Jul 17, 4:17 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin	28 min
Jul 17, 4:38 PM CDT	Severe Thunderstorm Warning	MOB	Mobile	22 min
Jul 17, 4:57 PM CDT	Special Marine Warning	MOB		63 min
Jul 17, 5:50 PM CDT	Special Marine Warning	MOB		55 min
Jul 17, 6:25 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw	35 min

Nearby

Flash Flood Warnings in Alabama, 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.