Alert archive / Alabama / Flash Flood Warnings in 1997

Flash Flood Warning 8, NWS Mobile, AL

July 19, 1997Mobile County, Alabama

NWS Mobile, AL issued this flash flood warning at Jul 19, 1997, 10:33 AM 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: Jul 19, 1997, 10:33 AM CDT (15:33 UTC)
Expired: Jul 19, 1997, 2:30 PM 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 15:33 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 12:00Z, 3.6 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: 160 J/kg
Mixed-layer CIN: -103 J/kg
Mixed-layer LCL: 934 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 88 m²/s²
0-3 km storm-relative helicity: 83 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 191532
FFWMOB
ALC097-191920-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1033 AM CDT SAT JUL 19 1997

THE NATIONAL WEATHER SERVICE IN MOBILE AL HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 230 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTHWESTERN ALABAMA

   ...SOUTHERN MOBILE
 
AT 1032 AM CDT...MOBILE DOPPLER WEATHER RADAR ESTIMATES INDICATE THAT
6 TO 10 INCHES OF RAIN HAVE FALLEN IN THE AREAS OF BELLINGRATH
ROAD AND DAUPHIN ISLAND PARKWAY SINCE MIDNIGHT.  THIS VERY HEAVY
RAINFALL HAS RESULTED IN 2 FEET OF WATER COVERING PORTIONS OF
BELLINGRATH ROAD AS OF 10 AM.  RADAR RAINFALL ESTIMATES INDICATE THAT
AROUND 10 INCHES OF RAIN HAVE FALLEN SINCE MIDNIGHT OVER DAUPHIN
ISLAND AS WELL.

AS HURRICANE DANNY CONTINUES TO DRIFT NORTHEASTWARD THROUGH THE
EARLY AFTERNOON HOURS...HEAVY RAINS WILL RESULT IN FLASH FLOODING
OVER SOUTHERN MOBILE COUNTY FROM THE CITY OF MOBILE SOUTHWARD...WITH
THE WORST FLOODING OCCURRING PRIMARILY SOUTH OF HIGHWAY 90...INCLUDING
DAUPHIN ISLAND.
 
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY AND THE ROAD BENEATH MAY( NOT BE INTACT. VEHICLES
CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. IT ONLY TAKES
A FOOT OR TWO OF FLOWING WATER TO WASH MOST CARS AWAY. REMEMBER...
MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 19, 2:12 PM CDT	Flash Flood Warning	MOB	Mobile	4 hr
Jul 19, 5:13 PM CDT	Flash Flood Warning	MOB	Mobile	10 hr

Nearby

Flash Flood Warnings in Alabama, 1997 Every flash flood warning in 1997

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.