Alert archive / Alabama / Flash Flood Warnings in 1992

Flash Flood Warning 2, NWS Mobile, AL

July 15, 1992Mobile County, Alabama

NWS Mobile, AL issued this flash flood warning at Jul 15, 1992, 7:30 PM CDT for Mobile County, Alabama. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Jul 15, 1992, 7:30 PM CDT (00:30 UTC)
Expired
Jul 15, 1992, 9:30 PM CDT
In force
2 hr
Issued by
NWS Mobile, AL
Area
Whole counties

County Mobile County, AL

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 0.5 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, Slidell Radar S, LA at 00:00Z on 1992-07-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1665 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, Slidell Radar S, LA at 00:00Z on 1992-07-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -25 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
1665 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
816 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-25 m²/s²
0-3 km storm-relative helicity
16 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 KMOB 160031
FFWMOB
ALC097-160230-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
730 PM CDT WED JUL 15 1992
 
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  930 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN SOUTHWEST ALABAMA
 
   ...SOUTH CENTRAL MOBILE COUNTY
 
AT 720 PM THE MOBILE RADAR INDICATED A BAND OF THUNDERSTORMS WITH VERY
HEAVY RAINFALL ACROSS SOUTH CENTRAL MOBILE COUNTY FROM NEAR
BELLEFONTAINE WEST-NORTHWEST TO THE DEES COMMUNITY NORTH OF GRAND BAY.
THESE THUNDERSTORMS ARE SITUATED IN A WEST-NORTHWEST TO EAST-SOUTHEAST
BAND ABOUT 8 MILES WIDE AND MOVING TO THE EAST-SOUTHEAST AT 10 MPH.
 
RADAR INDICATIONS ARE THAT 2 TO 3 INCHES OF RAIN MAY HAVE FALLEN ALONG
THIS THUNDERSTORM BAND IN THE PAST HOUR.  AN ADDITONAL 1 TO 2 INCHES OF
RAIN MAY OCCUR OVER THIS AREA AS ADDITIONAL THUNDERSTORMS FORM TO THE
WEST AND MOVE EAST-SOUTHEAST.
 
PERSONS IN THE COMMUNITIES OF BELL FONTAINE...THEODORE...TILLMANS
CORNER...ST. ELMO...IRVINGTON...MON LOUIS AND GRAND BAY ARE SUBJECT
TO THE VERY HEAVY RAINFALL THAT WILL FLOOD ROADS AND HIGHWAYS...FILL
STREAMS TO BANKFULL OR ABOVE AND THREATEN HOMES IN LOW-LYING AREAS.
 
PERSONS IN THESE COMMUNITIES SHOULD MOVE TO A HIGHER LOCATION IN AREAS
SUBJECT TO FLOODING.  MOTORISTS SHOULD DRIVE WITH EXTREME CAUTION AND
NOT CROSS AN AREA OF SWIFTLY FLOWING WATER.
 
THE THUNDERSTORMS WILL ALSO PRODUCE STRONG GUSTY WINDS...DANGEROUS
LIGHTNING AND POSSIBLY SOME HAIL.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING 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.

Nearby

Flash Flood Warnings in Alabama, 1992Every flash flood warning in 1992

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.