Alert archive / Alabama / Flash Flood Warnings in 2000

Flash Flood Warning 4, NWS Mobile, AL

March 29, 2000Mobile County, Alabama

NWS Mobile, AL issued this flash flood warning at Mar 29, 2000, 2:59 PM CST for Mobile 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
Mar 29, 2000, 2:59 PM CST (20:59 UTC)
Expired
Mar 29, 2000, 5:30 PM CST
In force
3 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 20:59 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, 9.0 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-pSkew-T log-p diagram, Slidell Radar S, LA at 12:00Z on 2000-03-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 12:00Z on 2000-03-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 152 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1754 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
152 m²/s²
0-3 km storm-relative helicity
196 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KMOB 292107
FFWMOB
ALC097-292330-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
259 PM CST WED MAR 29 2000

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MOBILE COUNTY IN ALABAMA

* UNTIL 530 PM CST

* AT 259 PM CST...WEATHER SERVICE DOPPLER RADAR INDICATED VERY       
  HEAVY RAINFALL OCCURRING OVER CENTRAL PORTIONS OF MOBILE COUNTY.   
  ALREADY NEARLY 2.5 INCHES OF RAINFALL HAS OCCURRED OVER THESE      
  LOCATIONS...AND AN ADDITIONAL 2 INCHES IS LIKELY THROUGH 530       
  PM.  STREET FLOODING HAS BEEN REPORTED ALONG AIRPORT BLVD...AND    
  AROUND THE INTERSECTION OF OLD SHELL AND UNIVERSITY.  STREET       
  FLOODING IS ALSO LIKELY OCCURRING ELSEWHERE ACROSS CENTRAL MOBILE  
  COUNTY...INCLUDING THE DOWNTOWN AREA.      

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS 
IMMINENT. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND 
IMMEDIATELY. EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH 
FLOODING OF SMALL CREEKS AND STREAMS...COUNTY 
ROADS...HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER DRAINAGE 
AREAS AND LOW LYING SPOTS.

MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS
BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS THE ROADWAY.
NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO
ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
MOBILE.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 29, 2:01 PM CSTSevere Thunderstorm WarningMOBBaldwin59 min
Mar 29, 3:02 PM CSTSevere Thunderstorm WarningMOBMobile58 min
Mar 29, 3:44 PM CSTSevere Thunderstorm WarningMOBBaldwin46 min
Mar 29, 3:55 PM CSTTornado WarningMOBMobile50 min
Mar 29, 4:14 PM CSTTornado WarningMOBBaldwin76 min

Nearby

Flash Flood Warnings in Alabama, 2000Every flash flood warning in 2000

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.