Alert archive / Alabama / Flash Flood Warnings in 1989

Flash Flood Warning 21, NWS Mobile, AL

November 8, 1989Henry County, Alabama

NWS Mobile, AL issued this flash flood warning at Nov 8, 1989, 1:44 PM CST for Henry County, Alabama. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Nov 8, 1989, 1:44 PM CST (19:44 UTC)
Expired: Nov 8, 1989, 4:45 PM CST
In force: 3 hr
Issued by: NWS Mobile, AL
Area: Whole counties

County Henry County, AL

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 7.7 hours before the alert went out and 166 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: 1293 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 629 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 237 m²/s²
0-3 km storm-relative helicity: 278 m²/s²
Significant tornado parameter: 2.2
Supercell composite: 13.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMGM 081948
FFWMGM
ALC031-039-045-061-067-069-082245-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MONTGOMERY AL
144 PM CST WED NOV 8 1989
 
THE NATIONAL WEATHER SERVICE IN MONTGOMERY HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  445 PM CST
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN SOUTH ALABAMA
          ...COFFEE...COVINGTON...DALE...GENEVA...HENRY...HOUSTON
 
HEAVY RAINS HAVE CONTINUED OVER THE WARNED AREA LAST SEVERAL HOURS.
STATE TROOPERS HAVE REPORTED MANY ROADS CLOSED DUE TO WATER OVER THEM.
 
 
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.  MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 8, 5:34 AM CST	Tornado Warning	MOB	Houston	41 min
Nov 8, 6:33 AM CST	Severe Thunderstorm Warning	MOB	Coffee, Covington	42 min
Nov 8, 7:20 AM CST	Severe Thunderstorm Warning	MOB	Covington, Geneva	55 min
Nov 8, 7:39 AM CST	Severe Thunderstorm Warning	MOB	Henry, Houston	66 min
Nov 8, 8:20 AM CST	Severe Thunderstorm Warning	MOB	Mobile	55 min
Nov 8, 9:44 AM CST	Tornado Warning	MOB	Houston	46 min
Nov 8, 10:37 AM CST	Flash Flood Warning	MOB	Coffee, Covington, Geneva	3 hr
Nov 8, 10:37 AM CST	Flash Flood Warning	MOB	Dale, Henry, Houston	3 hr
Nov 8, 10:47 AM CST	Severe Thunderstorm Warning	MOB	Geneva, Houston	58 min
Nov 8, 1:44 PM CST	Flash Flood Warning	MOB	Coffee, Covington, Dale, Geneva, Houston	3 hr
Nov 8, 2:13 PM CST	Tornado Warning	MOB	Baldwin	47 min

Nearby

Flash Flood Warnings in Alabama, 1989 Every flash flood warning in 1989

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.