Alert archive / Alabama / Flash Flood Warnings in 1996

Flash Flood Warning 29, NWS Birmingham, AL

November 30, 1996Colbert County, Franklin County, Alabama

NWS Birmingham, AL issued this flash flood warning at Nov 30, 1996, 9:02 PM CST for Colbert County, Franklin County, Alabama. It was in force for 118 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
Nov 30, 1996, 9:02 PM CST (03:02 UTC)
Expired
Nov 30, 1996, 11:00 PM CST
In force
118 min
Issued by
NWS Birmingham, AL
Area
Whole counties

Counties Colbert County, AL, Franklin County, AL

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 3.0 hours before the alert went out and 182 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, Birmingham, AL at 00:00Z on 1996-12-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 53 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 00:00Z on 1996-12-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 288 square meters per square second.1939587897117Sfc1 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
53 J/kg
Mixed-layer CIN
-56 J/kg
Mixed-layer LCL
521 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
288 m²/s²
0-3 km storm-relative helicity
363 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 
TTAA00 KHSV 010307 COR
FFWHSV
ALC033-059-077-010500-

BULLETIN - EAS ACTIVATION REQUESTED...CORRECTED FOR TIME
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HUNTSVILLE AL
902 PM CST SAT NOV 30 1996

THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1100 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONSS...

IN NORTH ALABAMA

   ...COLBERT COUNTY...FRANKLIN COUNTY...LAUDERDALE COUNTY

...SEVERE THUNDERSTORM WARNINGS REMAIN IN EFFECT FOR COLBERT AND
FRANKLIN COUNTIES UNTIL 945 PM CST...AND FOR LAUDERDALE COUNTY UNTIL
   10 PM CST...

AT 855 PM CST WEATHER SERVICE RADAR IN HUNTSVILLE INDICATED SEVERE
THUNDERSTORMS CONTAINING VERY HEAVY RAIN...DAMAGING WINDS IN EXCESS OF
55 MILES AN HOUR...AND POSSIBLY DAMAGING HAIL OVER WESTERN SECTIONS OF
FRANKLIN...COLBERT AND LAUDERDALE COUNTY.  THE GROUND IN THIS AREA
REMAINS SATURATED FROM PREVIOUS RAINS.  WITH HEAVY RAINS MOVING
THROUGH THE AREA OVER THE NEXT COUPLE OF HOURS...SMALL STREAMS...LOW
LYING AREAS...AND MANY ROADWAYS WILL FLOOD QUICKLY.

MOVEMENT OF THE THUNDERSTORMS WAS NORTHEAST AROUND 50 MILES AN HOUR.


BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS.  IF FLASH FLOODING IS
OBSERVED...ACT QUICKLY.  MOVE UP TO ESCAPE FLOOD WATERS.  DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 30, 8:41 PM CSTSevere Thunderstorm WarningBMXColbert, Franklin64 min
Nov 30, 8:51 PM CSTSevere Thunderstorm WarningBMXLauderdale69 min
Nov 30, 9:02 PM CSTFlash Flood WarningBMXLauderdale118 min
Nov 30, 9:47 PM CSTSevere Thunderstorm WarningBMXColbert, Franklin58 min
Nov 30, 10:03 PM CSTSevere Thunderstorm WarningBMXLauderdale57 min
Nov 30, 10:11 PM CSTSevere Thunderstorm WarningBMXDallas34 min
Nov 30, 10:25 PM CSTTornado WarningBMXChilton50 min
Nov 30, 10:57 PM CSTTornado WarningBMXCoosa63 min
Nov 30, 11:23 PM CSTTornado WarningBMXTalladega37 min
Nov 30, 11:28 PM CSTTornado WarningBMXClay47 min
Dec 1, 1:24 AM CSTTornado WarningBMXMontgomery51 min
Dec 1, 1:35 AM CSTTornado WarningBMXCoosa25 min
Dec 1, 1:38 AM CSTTornado WarningBMXTallapoosa37 min
Dec 1, 1:44 AM CSTTornado WarningBMXMacon46 min
Dec 1, 1:45 AM CSTTornado WarningBMXElmore30 min
Dec 1, 1:49 AM CSTTornado WarningBMXClay41 min
Dec 1, 1:59 AM CSTTornado WarningBMXTallapoosa46 min
Dec 1, 2:03 AM CSTFlash Flood WarningBMXElmore, Montgomery117 min
Dec 1, 2:05 AM CSTTornado WarningBMXRandolph40 min
Dec 1, 2:09 AM CSTTornado WarningBMXBullock36 min
Dec 1, 2:15 AM CSTTornado WarningBMXChambers45 min
Dec 1, 2:22 AM CSTTornado WarningBMXLee38 min

Nearby

Flash Flood Warnings in Alabama, 1996Every flash flood warning in 1996

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.