Alert archive / Alabama / Flash Flood Warnings in 1998

Flash Flood Warning 8, NWS Mobile, AL

March 7, 1998Mobile County, Alabama

NWS Mobile, AL issued this flash flood warning at Mar 7, 1998, 11:14 PM CST for Mobile County, Alabama. It was in force for 116 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Mar 7, 1998, 11:14 PM CST (05:14 UTC)
Expired: Mar 8, 1998, 1:10 AM CST
In force: 116 min
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, 5.2 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: 65 J/kg
Mixed-layer CIN: -254 J/kg
Mixed-layer LCL: 520 m above ground
0-6 km bulk shear: 77 kt
0-1 km storm-relative helicity: 530 m²/s²
0-3 km storm-relative helicity: 619 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMOB 080513
FFWMOB
ALC097-080710-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1114 PM CST SAT MAR 7 1998


THE NATIONAL WEATHER SERVICE IN MOBILE AL HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 110 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTHWESTERN ALABAMA

   ...MOBILE COUNTY

WEATHER SERVICE RADAR INDICATES VERY HEAVY RAINFALL WILL CONTINUE OVER
MOBILE COUNTY...PARTICULARY ALONG AND NORTH OF I-10 THROUGH 1 AM.
NEARLY 5 INCHES OF RAINFALL HAS FALLEN AT THE MOBILE AIRPORT
DURING THE PAST 24 HOURS. IN ADDITION...A LINE OF STRONG THUNDERSTORMS
CURRENTLY MOVING ACROSS THE MOBILE AREA HAS PRODUCED NEARLY ONE AND A
HALF INCHES OF RAIN SINCE 10 PM...AND AN ADDITIONAL ONE AND A HALF TO
TWO INCHES IS LIKELY TO OCCUR OVER THE AREA THROUGH 1 AM. AS A
RESULT...FLASH FLOODING IS LIKELY.


BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND 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. IT IS VERY DIFFICULT
AT NIGHT TO TELL HOW MUCH WATER IS ON ROADS. MOTORISTS SHOULD NOT
DRIVE THROUGH WATERh OF UNKNOWN DEPTH.

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 8, 12:19 AM CST	Flash Flood Warning	MOB	Baldwin	2 hr
Mar 8, 12:46 AM CST	Severe Thunderstorm Warning	MOB	Conecuh	64 min
Mar 8, 12:59 AM CST	Flash Flood Warning	MOB	Mobile	3 hr
Mar 8, 1:08 AM CST	Flash Flood Warning	MOB	Conecuh, Escambia	2 hr
Mar 8, 1:33 AM CST	Flash Flood Warning	MOB	Covington	117 min
Mar 8, 2:18 AM CST	Flash Flood Warning	MOB	Baldwin, Escambia, Mobile	4 hr
Mar 8, 2:18 AM CST	Flash Flood Warning	MOB	Conecuh, Covington	4 hr
Mar 8, 3:57 AM CST	Severe Thunderstorm Warning	MOB	Covington	63 min
Mar 8, 4:27 AM CST	Flash Flood Warning	MOB	Conecuh	2 hr
Mar 8, 5:38 AM CST	Flash Flood Warning	MOB	Crenshaw	4 hr
Mar 8, 5:58 AM CST	Flash Flood Warning	MOB	Baldwin, Conecuh, Covington, Escambia	4 hr
Mar 8, 5:58 AM CST	Flash Flood Warning	MOB	Mobile	4 hr
Mar 8, 10:09 AM CST	Severe Thunderstorm Warning	MOB	Butler	61 min
Mar 8, 10:14 AM CST	Flash Flood Warning	MOB	Covington, Escambia	5 hr
Mar 8, 10:14 AM CST	Flash Flood Warning	MOB	Baldwin	5 hr
Mar 8, 10:14 AM CST	Flash Flood Warning	MOB	Butler, Conecuh	5 hr
Mar 8, 10:14 AM CST	Flash Flood Warning	MOB	Mobile	5 hr
Mar 8, 10:14 AM CST	Flash Flood Warning	MOB	Crenshaw	5 hr
Mar 8, 1:48 PM CST	Severe Thunderstorm Warning	MOB	Conecuh, Covington, Escambia	62 min
Mar 8, 2:08 PM CST	Severe Thunderstorm Warning	MOB	Baldwin	62 min
Mar 8, 2:20 PM CST	Tornado Warning	MOB	Butler	50 min
Mar 8, 2:47 PM CST	Severe Thunderstorm Warning	MOB	Covington, Escambia	63 min
Mar 8, 2:47 PM CST	Severe Thunderstorm Warning	MOB	Conecuh	63 min
Mar 8, 3:18 PM CST	Severe Thunderstorm Warning	MOB	Butler	62 min
Mar 8, 3:30 PM CST	Flash Flood Warning	MOB	Baldwin, Escambia	6 hr
Mar 8, 3:30 PM CST	Flash Flood Warning	MOB	Butler, Conecuh, Covington	6 hr
Mar 8, 3:30 PM CST	Flash Flood Warning	MOB	Crenshaw	6 hr
Mar 8, 3:30 PM CST	Flash Flood Warning	MOB	Mobile	6 hr

Nearby

Flash Flood Warnings in Alabama, 1998 Every flash flood warning in 1998

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.