Alert archive / Alabama / Flash Flood Warnings in 2004

Flash Flood Warning 41, NWS Birmingham, AL

November 22, 2004Jefferson County, Alabama

NWS Birmingham, AL issued this flash flood warning at Nov 22, 2004, 4:28 PM CST for Jefferson County, Alabama. It was in force for 2 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: Nov 22, 2004, 4:28 PM CST (22:28 UTC)
Expired: Nov 22, 2004, 6:30 PM CST
In force: 2 hr
Issued by: NWS Birmingham, AL
Area: Counties, with a storm outline in the text

County Jefferson County, AL

The radar

The Birmingham radar (KBMX), 48 km from the middle of the area, began a volume at 22:32 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, 10.5 hours before the alert went out and 47 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: 169 J/kg
Mixed-layer CIN: -50 J/kg
Mixed-layer LCL: 433 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 91 m²/s²
0-3 km storm-relative helicity: 96 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KBMX 222230
FFWBMX
ALC073-230030-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
428 PM CST MON NOV 22 2004

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  JEFFERSON COUNTY IN CENTRAL ALABAMA
  THIS INCLUDES THE CITIES OF...WARRIOR...TRUSSVILLE...MINOR...
  HUEYTOWN...GARDENDALE...FULTONDALE...BIRMINGHAM...BESSEMER

* UNTIL 630 PM CST

* AT 422 PM CST...WATER LEVELS CONTINUED TO RISE IN AREA CREEKS AND 
  STREAMS. 

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  TRAFFORD...SYLVAN SPRINGS...PINSON...MORRIS...LEEDS...KIMBERLY...
  HOMEWOOD...GRAYSVILLE...CAHABA HEIGHTS AND BIRMINGHAM AIRPORT.

ADDITIONAL RAINFALL AMOUNTS OF ONE HALF INCH TO ONE INCH ARE 
POSSIBLE IN THE WARNED AREA.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE CONTINUED FLOODING 
OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND 
ALONG THE BANKS OF CREEKS AND STREAMS.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
BIRMINGHAM.

LAT...LON 3350 8726 3353 8727 3356 8719 3359 8720
      3367 8706 3377 8701 3384 8689 3384 8676
      3376 8665 3376 8655 3367 8653 3357 8656
      3353 8653 3347 8662 3348 8667 3326 8699
      3331 8716 3348 8734

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 22, 1:58 PM CST	Flash Flood Warning	BMX	Jefferson	2 hr
Nov 22, 2:12 PM CST	Flash Flood Warning	BMX	Tuscaloosa	2 hr
Nov 22, 4:29 PM CST	Flash Flood Warning	BMX	Jefferson	3 hr

Nearby

Flash Flood Warnings in Alabama, 2004 Every flash flood warning in 2004

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.