Alert archive / Alabama / Flash Flood Warnings in 1997

Flash Flood Warning 10, NWS Mobile, AL

July 19, 1997Mobile County, Alabama

NWS Mobile, AL issued this flash flood warning at Jul 19, 1997, 5:13 PM CDT for Mobile County, Alabama. It was in force for 10 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, 5:13 PM CDT (22:13 UTC)
Expired: Jul 20, 1997, 3:00 AM CDT
In force: 10 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 22:13 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, 10.2 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 192212
FFWMOB
ALC097-200800-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
513 PM CDT SAT JUL 19 1997
 
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  300 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHWEST ALABAMA
 
   ...MOBILE COUNTY
 
AT 515 PM...NWS DOPPLER WEATHER RADAR IN MOBILE,AL CONTINUED TO INDICATE
TORRENTIAL RAIN FALLING OVER THE EASTERN HALF OF MOBILE COUNTY WITH
MODERATE TO HEAVY RAIN EXTENDING OVER WEST PORTIONS OF THE COUNTY. THIS
TREND IS EXPECTED TO CONTINUE AS DANNY SLOWLY WOBBLES EAST-NORTHEAST
INTO BALDWIN COUNTY AND THUNDERSTORMS ROTATE FROM THE NORTHWEST TO THE
SOUTHEAST OVER MOBILE COUNTY THIS EVENING.
 
THE HEAVY RAINFALL PROBLEM IS BEING COMPOUNDED DUE TO THE FACT THAT THE
STORM IS NOW DRAWING HEATED AIR INTO IT WHICH IS ORIGINATING TO THE
NORTHEAST OF OUR REGION. THIS IS AIDING THE CONTINUAL RE-DEVELOPMENT OF
HEAVY RAIN AND THUNDERSTORMS ON THE WEST AND NORTH SIDE OF DANNY. THIS
TREND OF THE CONTINUAL RE-DEVELOPMENT OF DEEP THUNDERSTORM ACTIVITY ON
DANNY'S WEST SIDE IS EXPECTED TO CONTINUE THROUGH MIDNIGHT.
 
SINCE MIDNIGHT...DANNY HAS DUMPED AT LEAST 25 INCHES OF RAIN IN THE FAR
SOUTHEAST PORTION OF MOBILE COUNTY BETWEEN DAUPHIN ISLAND AND ALABAMA
PORT. NUMEROUS EVENT TOTAL REPORTS OF OVER 20 INCHES HAVE BEEN RECEIVED
BY THE NWS THROUGHOUT THE DAY TODAY. ADDITIONAL RAINFALL RATES OF UP TO
THREE INCHES OF RAIN PER HOUR CAN BE EXPECTED SOUTH OF HIGHWAY 90...BUT
EAST OF GRAND BAY CAN BE EXPECTED THROUGHOUT THE EVENING.
 
HEAVY RAIN WILL ALSO BE DEVELOPING ACROSS NORTHERN MOBILE COUNTY
THIS EVENING TOO. AREAS OF THE COUNTY NORTH OF AIRPORT BOULEVARD CAN EXP
TTO SEE THREE TO SIX INCHES OF RAIN OVER ISOLATED LOCATIONS NEAR THE
COMMUNITIES OF PRICHARD ...WILMER... CHUNCHULA ...GULFCREST AND SARALAND 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS.t  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
Jul 19, 10:33 AM CDT	Flash Flood Warning	MOB	Mobile	4 hr
Jul 19, 2:12 PM CDT	Flash Flood Warning	MOB	Mobile	4 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.