Alert archive / Alabama / Flash Flood Warnings in 1996

Flash Flood Warning 4, NWS Mobile, AL

April 14, 1996Mobile County, Alabama

NWS Mobile, AL issued this flash flood warning at Apr 14, 1996, 8:39 PM CDT for Mobile County, Alabama. It was in force for 4 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: Apr 14, 1996, 8:39 PM CDT (01:39 UTC)
Expired: Apr 15, 1996, 12:45 AM CDT
In force: 4 hr
Issued by: NWS Mobile, AL
Area: Whole counties

County Mobile County, AL

The radar

The Mobile radar (KMOB), 4 km from the middle of the area, began a volume at 01:43 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

Slidell Radar S, LA (KSIL), launched 00:00Z, 1.7 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-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: 2003 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 554 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 218 m²/s²
0-3 km storm-relative helicity: 297 m²/s²
Significant tornado parameter: 3.5
Supercell composite: 14.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMOB 150140
FFWMOB
ALC097-150545-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
839 PM CDT SUN APR 14 1996
 
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1245 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHWEST ALABAMA
 
   ...MOBILE COUNTY
 
AT 839 PM CDT...THE NATIONAL WEATHER SERVICE IN MOBILE ALABAMA
HAS ISSUED A FLASH FLOOD WARNING FOR ALL OF MOBILE COUNTY.
THUNDERSTORMS WITH RAINFALL AMMOUNTS IN EXCESS OF 3 INCHES PER HOUR
HAVE RESULTED IN HEAVY FLOODING ACROSS MANY ROADWAYS IN LOW LYING AREAS.
MOTORISTS ARE URGED TO USE EXTREME CAUTION WHEN DRIVING IN HEAVY RAIN AR
S 
OTHER THUNDERSTORMS TO THE WEST OVER MS AND LA WILL PRODUCE HEAVY RAINS
AND FLOODING LATER TONIGHT.
 
STAY TUNED TO LOCAL BROADCAST STATIONS OR NOAA WEATHER RADIO FOR ANY
FURTHER UPDATES.
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS ARND FLASH FLOODS.  IF FLASH FLOODING IS
OBSERVED...ACT QUICKLY.  MOVE UP TO ESCAPE FLOOD WATERS.  DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 14, 7:10 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin	65 min
Apr 14, 8:14 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin	61 min
Apr 14, 8:29 PM CDT	Severe Thunderstorm Warning	MOB	Mobile	61 min
Apr 14, 9:10 PM CDT	Flash Flood Warning	MOB	Baldwin	4 hr
Apr 14, 10:14 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin	61 min
Apr 14, 11:28 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin	62 min
Apr 15, 12:00 AM CDT	Flash Flood Warning	MOB	Russell	6 hr

Nearby

Flash Flood Warnings in Alabama, 1996 Every 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.