Alert archive / Alabama / Flash Flood Warnings in 2003

Flash Flood Warning 37, NWS Birmingham, AL

May 7, 2003Clay County, Randolph County, Alabama

NWS Birmingham, AL issued this flash flood warning at May 7, 2003, 11:06 PM CDT for Clay County, Randolph 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: May 7, 2003, 11:06 PM CDT (04:06 UTC)
Expired: May 8, 2003, 3:00 AM CDT
In force: 4 hr
Issued by: NWS Birmingham, AL
Area: Counties, with a storm outline in the text

Counties Clay County, AL, Randolph County, AL

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 4.1 hours before the alert went out and 90 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: 2242 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 809 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 95 m²/s²
0-3 km storm-relative helicity: 135 m²/s²
Significant tornado parameter: 2.4
Supercell composite: 8.2

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KBMX 080409
FFWBHM
ALC027-111-080800-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1106 PM CDT WED MAY 7 2003

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CLAY COUNTY IN EAST CENTRAL ALABAMA
  RANDOLPH COUNTY IN EAST CENTRAL ALABAMA

* UNTIL 300 AM CDT

* AT 1104 PM CDT...EMERGENCY MANAGEMENT REPORTED CONTINUED FLASH 
FLOODING ACROSS CLAY AND RANDOLPH COUNTIES.  ADDITIONAL LOCALLY 
HEAVY RAINFALL IN SHOWERS AND THUNDERSTORMS WILL RESULT IN CONTINUED 
FLOODING THROUGH THE EARLY MORNING HOURS.  THIS WARNING EXTENDS THE 
PREVIOUS WARNING.

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

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

LAT...LON 3350 8533 3313 8524 3313 8616 3320 8616
          3322 8611 3330 8611 3330 8598 3338 8597
          3342 8591 3347 8590 3349 8577

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 7, 7:02 PM CDT	Tornado Warning	BMX	Tallapoosa	18 min
May 7, 7:04 PM CDT	Flash Flood Warning	BMX	Talladega	4 hr
May 7, 7:11 PM CDT	Flash Flood Warning	BMX	Calhoun	4 hr
May 7, 7:12 PM CDT	Tornado Warning	BMX	Chambers	48 min
May 7, 7:22 PM CDT	Flash Flood Warning	BMX	Clay, Randolph	4 hr
May 7, 8:37 PM CDT	Flash Flood Warning	BMX	Jefferson	3 hr
May 7, 8:44 PM CDT	Flash Flood Warning	BMX	St. Clair	3 hr
May 7, 9:42 PM CDT	Severe Thunderstorm Warning	BMX	Chambers, Lee	48 min
May 7, 10:35 PM CDT	Flash Flood Warning	BMX	Calhoun	5 hr
May 7, 10:42 PM CDT	Flash Flood Warning	BMX	Talladega	5 hr
May 7, 10:56 PM CDT	Flash Flood Warning	BMX	Jefferson	5 hr
May 7, 11:25 PM CDT	Flash Flood Warning	BMX	St. Clair	3 hr
May 8, 1:46 AM CDT	Flash Flood Warning	BMX	St. Clair	2 hr
May 8, 2:48 AM CDT	Flash Flood Warning	BMX	Clay, Randolph	4 hr
May 8, 3:51 AM CDT	Flash Flood Warning	BMX	Jefferson	3 hr
May 8, 4:00 AM CDT	Flash Flood Warning	BMX	Calhoun, St. Clair, Talladega	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.