Alert archive / Alabama / Flash Flood Warnings in 1996

Flash Flood Warning 8, NWS Mobile, AL

August 30, 1996Clarke County, Monroe County, Wilcox County, Alabama

NWS Mobile, AL issued this flash flood warning at Aug 30, 1996, 9:31 AM CDT for Clarke County, Monroe County, Wilcox County, Alabama. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 30, 1996, 9:31 AM CDT (14:31 UTC)
Expired
Aug 30, 1996, 12:30 PM CDT
In force
3 hr
Issued by
NWS Mobile, AL
Area
Whole counties

Counties Clarke County, AL, Monroe County, AL, Wilcox County, AL

The radar

The Mobile radar (KMOB), 138 km from the middle of the area, began a volume at 14:30 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 2.5 hours before the alert went out and 170 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, Eglin AFB/Valpar, FL at 12:00Z on 1996-08-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 87 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, Eglin AFB/Valpar, FL at 12:00Z on 1996-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 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
87 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
695 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
71 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 301430
FFWMOB
ALC131-025-099-301730-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
931 AM CDT FRI AUG 30 1996
 
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1230 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH ALABAMA
 
   ...WILCOX COUNTY
 
IN SOUTHWEST ALABAMA
 
   ...CLARKE COUNTY...MONROE COUNTY
 
AT 930 AM...NWS DOPPLER WEATHER RADAR IN MOBILE INDICATED PERSISTENT
HEAVY RAIN THAT CONTINUES TO FALL OVER NORTHWEST MONROE COUNTY...
SOUTHWEST WILCOX COUNTY AND EAST-NORTHEAST CLARKE COUNTY OF SOUTHWEST
ALABAMA. RADAR RAINFALL ESTIMATES INDICATE...THAT AN AREA BETWEEN THE
TWO MAIN NORTH-SOUTH RAILROAD TRACKS THAT LIE OVER THESE COUNTIES HAS
RECEIVED BETWEEN 3 AND 5 INCHES SINCE 6 AM. MORE HEAVY RAINFALL IS
EXPECTED THROUGH AT LEAST EARLY AFTERNOON. REPORTS FROM THE WILCOX
COUNTY SHERIFF INDICATE THAT WATER WAS FLOWING OVER COUNTY ROAD 12
...NEAR COY ALABAMA.
 
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.z

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 30, 12:50 PM CDTFlash Flood WarningMOBClarke, Monroe, Wilcox3 hr
Aug 30, 4:20 PM CDTFlash Flood WarningMOBClarke, Monroe5 hr

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; radar from the NEXRAD Level II archive.