Alert archive / Alabama / Flash Flood Warnings in 1989

Flash Flood Warning 12, NWS Mobile, AL

June 19, 1989Coosa County, Tallapoosa County, Alabama

NWS Mobile, AL issued this flash flood warning at Jun 19, 1989, 6:31 AM CDT for Coosa County, Tallapoosa County, Alabama. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Jun 19, 1989, 6:31 AM CDT (11:31 UTC)
Expired
Jun 19, 1989, 9:00 AM CDT
In force
2 hr
Issued by
NWS Mobile, AL
Area
Whole counties

Counties Coosa County, AL, Tallapoosa 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

Centreville/Bibb, AL (KCKL), launched 00:00Z, 11.5 hours before the alert went out and 110 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, Centreville/Bibb, AL at 00:00Z on 1989-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3006 joules per kilogram.LCLLFCEL10008507005003002001001 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, Centreville/Bibb, AL at 00:00Z on 1989-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 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
3006 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
928 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
100 m²/s²
Significant tornado parameter
0.8
Supercell composite
4.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMGM 191136
FFWMGM
ALC037-123-191330-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MONTGOMERY AL
631 AM CDT MON JUN 19 1989
 
THE NATIONAL WEATHER SERVICE IN MONTGOMERY HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  900 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN SOUTH ALABAMA
          ...COOSA...TALLAPOOSA
 
RADAR SHOWED NUMEROUS THUNDERSTORMS WITH TORRENTIAL RAIN CONTINUING
ACROSS THESE COUNTIES AT 630 AM. MORE STORMS ARE ON THE WAY...AND
SINCE THE GROUND IS ALREADY SATURATED...THIS ADDITIONAL RAIN WILL
LIKELY CAUSE FLASH FLOODING. SEVERAL ROADS IN TALLAPOOSA COUNTY HAVE
BEEN WASHED OUT OR FLOODED.
 
 
 
A FLASH FLOOD WARNING MEANS THAT FLOODINGr IS IMMINENT.  IT'S
IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR
CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS.  CAMPERS SHOULD
AVOID CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 3:00 AM CDTFlash Flood WarningMOBTallapoosa2 hr
Jun 19, 5:00 AM CDTFlash Flood WarningMOBTallapoosa2 hr
Jun 19, 5:35 AM CDTFlash Flood WarningMOBElmore, Montgomery115 min
Jun 19, 8:46 AM CDTSevere Thunderstorm WarningMOBLee52 min
Jun 19, 9:03 AM CDTFlash Flood WarningMOBCoosa, Elmore, Tallapoosa117 min
Jun 19, 11:33 AM CDTFlash Flood WarningMOBMontgomery117 min
Jun 19, 1:11 PM CDTSevere Thunderstorm WarningMOBHouston64 min

Nearby

Flash Flood Warnings in Alabama, 1989Every 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.