Alert archive / Alabama / Flash Flood Warnings in 2003

Flash Flood Warning 71, NWS Birmingham, AL

July 1, 2003Montgomery County, Alabama

NWS Birmingham, AL issued this flash flood warning at Jul 1, 2003, 6:41 AM CDT for Montgomery County, Alabama. It was in force for 109 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 1, 2003, 6:41 AM CDT (11:41 UTC)
Expired: Jul 1, 2003, 8:30 AM CDT
In force: 109 min
Issued by: NWS Birmingham, AL
Area: Counties, with a storm outline in the text

County Montgomery County, AL

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 11.7 hours before the alert went out and 122 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: 158 J/kg
Mixed-layer CIN: -85 J/kg
Mixed-layer LCL: 1001 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 20 m²/s²
0-3 km storm-relative helicity: 56 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KBMX 011147
FFWBHM
ALC101-011330-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
641 AM CDT TUE JUL 1 2003

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MONTGOMERY COUNTY IN SOUTH CENTRAL ALABAMA

* UNTIL 830 AM CDT

* AT 639 AM CDT...THE MONTGOMERY EMA REPORTED SOME STREETS FLOODED 
IN THE CITY OF MONTGOMERY.  ANOTHER CLUSTER OF SHOWERS AND 
THUNDERSTORMS WILL MOVE INTO AND ACROSS THE AREA THE NEXT HOUR OR 
SO.  RAINFALL ESTIMATES AND SURFACE OBSERVATIONS INDICATE 2 TO 3 
INCHES OF RAIN HAS ALREADY FALLEN ACROSS MANY SECTIONS OF MONTGOMERY 
COUNTY.

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.

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 3208 8638 3202 8611 3229 8602 3240 8639

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 1, 4:53 AM CDT	Tornado Warning	BMX	Barbour	37 min
Jul 1, 5:26 AM CDT	Tornado Warning	BMX	Russell	64 min
Jul 1, 5:35 AM CDT	Tornado Warning	BMX	Montgomery	35 min
Jul 1, 6:32 AM CDT	Flash Flood Warning	BMX	Autauga	118 min
Jul 1, 6:52 AM CDT	Flash Flood Warning	BMX	Elmore	2 hr
Jul 1, 7:54 AM CDT	Flash Flood Warning	BMX	Tallapoosa	2 hr
Jul 1, 8:08 AM CDT	Flash Flood Warning	BMX	Chambers, Lee, Macon, Randolph	4 hr
Jul 1, 12:25 PM CDT	Flash Flood Warning	BMX	Jefferson	3 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.