Alert archive / Alabama / Flash Flood Warnings in 1999

Flash Flood Warning 35, NWS Birmingham, AL

June 28, 1999Madison County, Alabama

NWS Birmingham, AL issued this flash flood warning at Jun 28, 1999, 2:01 AM CDT for Madison County, Alabama. It was in force for 119 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 28, 1999, 2:01 AM CDT (07:01 UTC)
Expired
Jun 28, 1999, 4:00 AM CDT
In force
119 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Madison County, AL

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 7.0 hours before the alert went out and 152 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-pSkew-T log-p diagram, Nashville Metro, TN at 00:00Z on 1999-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1357 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 00:00Z on 1999-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1357 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
1184 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
62 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBHM 280710 COR
FFWBHM
ALC089-280900-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING...CORRECTED
NATIONAL WEATHER SERVICE BIRMINGHAM AL
201 AM CDT MON JUN 28 1999

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A...

* FLASH FLOOD WARNING FOR...
  MADISON COUNTY... IN NORTHERN ALABAMA.

* UNTIL 400 AM CDT

* AT 2 AM NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN AREA
  OF THUNDERSTORMS WITH VERY HEAVY RAIN ... MOVING SLOWLY TO THE SOUTH.
  DOPPLER RADAR INDICATES ONE TO TWO INCHES OF RAIN OVER THE AREA IN
  THE PAST HOUR AND ANOTHER ONE TO TWO INCHES IS POSSIBLE THROUGH 4 AM.

* FLOODING HAS BEEN REPORTED ALONG GOVERNORS DRIVE IN THE CITY OF
  HUNTSVILLE AND ALONG U.S. HIGHWAY 72 TO THE WEST OF HUNTSVILLE.

DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD!

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 28, 7:48 AM CDTSevere Thunderstorm WarningBMXTallapoosa62 min
Jun 28, 8:20 AM CDTFlash Flood WarningBMXJackson2 hr
Jun 28, 8:35 AM CDTFlash Flood WarningBMXLee3 hr
Jun 28, 11:35 AM CDTFlash Flood WarningBMXLee115 min
Jun 28, 12:01 PM CDTFlash Flood WarningBMXSt. Clair119 min

Nearby

Flash Flood Warnings in Alabama, 1999Every flash flood warning in 1999

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.