Alert archive / Alabama / Flash Flood Warnings in 1994

Flash Flood Warning 11, NWS Birmingham, AL

July 26, 1994Colbert County, Alabama

NWS Birmingham, AL issued this flash flood warning at Jul 26, 1994, 3:31 AM CDT for Colbert County, Alabama. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Jul 26, 1994, 3:31 AM CDT (08:31 UTC)
Expired
Jul 26, 1994, 8:30 AM CDT
In force
5 hr
Issued by
NWS Birmingham, AL
Area
Whole counties

County Colbert County, AL

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 8.5 hours before the alert went out and 193 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 1994-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2166 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 1994-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 square meters per square second.193958Sfc1 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
2166 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
807 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
24 m²/s²
Significant tornado parameter
0.2
Supercell composite
0.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KHSV 260833
FFWHSV
ALC033-261330-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HUNTSVILLE AL
331 AM CDT TUE JUL 26 1994
 
THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  830 AM CDT
...
 
IN NORTH ALABAMA
 
   ...COLBERT COUNTY
 
AT 325 AM CDT WEATHER RADAR AT HUNTSVILLE INDICATED AN AREA OF SHOWERS
AND THUNDERSTORMS COVERING COLBERT COUNTY. THE THUNDERSTORMS WERE OVER
THE EASTERN HALF OF THE COUNTY.
 
THE SHOWERS AND THUNDERSTORMS WERE MOVING EAST AT 5 TO 10 MILES AN HOUR.
 
BEACUSE OF THE SLOW MOVEMENT OF THIS AREA OF HEAVY RAIN SOME AREAS IN
COLBERT COUNTY HAVE EXPERIENCED FLOODING. THE COLBERT COUNTY SHERIFF
OFFICE REPORTED FLOODING IN CHEROKEE AND ALSO REPORTED A FEW ROADS UNDER
HIGH WATER. THE RAIN AREA IS MOVING SLOWLY OUT OF COLBERT COUNTY INTO
LAWRENCE COUNTY. FLOODING SHOULD PERSIST IN COLBERT COUNTY FOR A FEW
HOURS AS THE WATER DRAINS OFF.
 
 
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY.  THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY.  VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY.  MOVE TO HIGHER GROUND.

Nearby

Flash Flood Warnings in Alabama, 1994Every flash flood warning in 1994

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.