Alert archive / Alabama / Flash Flood Warnings in 2003

Flash Flood Warning 63, NWS Birmingham, AL

June 17, 2003Jefferson County, Alabama

NWS Birmingham, AL issued this flash flood warning at Jun 17, 2003, 6:41 PM CDT for Jefferson County, Alabama. It was in force for 79 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: Jun 17, 2003, 6:41 PM CDT (23:41 UTC)
Expired: Jun 17, 2003, 8:00 PM CDT
In force: 79 min
Issued by: NWS Birmingham, AL
Area: Counties, with a storm outline in the text

County Jefferson County, AL

The radar

The Birmingham radar (KBMX), 42 km from the middle of the area, began a volume at 23:42 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

Birmingham, AL (KBMX), launched 12:00Z, 11.7 hours before the alert went out and 41 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: 1195 J/kg
Mixed-layer CIN: -37 J/kg
Mixed-layer LCL: 586 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 40 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KBMX 172345
FFWBHM
ALC073-180100-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
641 PM CDT TUE JUN 17 2003

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  JEFFERSON COUNTY IN ALABAMA

* UNTIL 800 PM CDT

* A CLUSTER OF SHOWERS AND THUNDERSTORMS OVER SOUTHERN JEFFERSON 
COUNTY WILL MOVE SLOWLY NORTHWARD THE NEXT HOUR OR SO.  ADDITIONAL 
RAINFALL TOTALS OF 1 TO 2 INCHES ARE POSSIBLE.

* AREAS AFFECTED INCLUDE HOOVER...THE CITY OF BIRMINGHAM...
BLUFF PARK. 

EXCESSIVE RUNOFF FROM THIS 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.

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.

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.

CALL 1-800-856-0758 TO REPORT FLOODING CONDITIONS.

LAT...LON 3341 8714 3330 8689 3374 8667 3365 8711

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 17, 4:07 PM CDT	Severe Thunderstorm Warning	BMX	Winston	23 min
Jun 17, 4:33 PM CDT	Flash Flood Warning	BMX	Winston	117 min
Jun 17, 4:44 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson	31 min
Jun 17, 5:06 PM CDT	Flash Flood Warning	BMX	Marion	114 min
Jun 17, 5:12 PM CDT	Severe Thunderstorm Warning	BMX	Shelby	33 min
Jun 17, 5:19 PM CDT	Flash Flood Warning	BMX	Jefferson	86 min
Jun 17, 5:51 PM CDT	Severe Thunderstorm Warning	BMX	Shelby	19 min
Jun 17, 5:58 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson, Shelby	17 min
Jun 17, 6:03 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson	27 min
Jun 17, 6:10 PM CDT	Flash Flood Warning	BMX	Shelby	2 hr
Jun 17, 6:58 PM CDT	Flash Flood Warning	BMX	Blount	2 hr

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; radar from the NEXRAD Level II archive.