Alert archive / Alabama / Flash Flood Warnings in 2005

Flash Flood Warning 22, NWS Mobile, AL

April 6, 2005Baldwin County, Mobile County, Alabama

NWS Mobile, AL issued this flash flood warning at Apr 6, 2005, 5:56 PM CDT for Baldwin County, Mobile County, Alabama. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 6, 2005, 5:56 PM CDT (22:56 UTC)
Expired
Apr 6, 2005, 8:00 PM CDT
In force
2 hr
Issued by
NWS Mobile, AL
Area
Counties, with a storm outline in the text

Counties Baldwin County, AL, Mobile County, AL

The radar

The Mobile radar (KMOB), 38 km from the middle of the area, began a volume at 22:59 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, 10.9 hours before the alert went out and 173 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 2005-04-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1199 joules per kilogram.LCLLFCEL10008507005003002001001 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 2005-04-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 199 square meters per square second.19395878Sfc1 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
1199 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
645 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
199 m²/s²
0-3 km storm-relative helicity
279 m²/s²
Significant tornado parameter
1.2
Supercell composite
8.1

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KMOB 062256
FFWMOB
ALC003-097-070100-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
556 PM CDT WED APR 6 2005

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...

  BALDWIN COUNTY IN SOUTHWEST ALABAMA
  MOBILE COUNTY IN SOUTHWEST ALABAMA

* UNTIL 800 PM CDT

* AT 556 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  STRONG THUNDERSTORMS CONTINUING TO MOVE OVER THE SAME AREAS THAT HAVE 
  RECEIVED ABUNDANT RAINFALL FOR THE PAST SEVERAL HOURS. MORE THUNDERSTORMS 
  ARE DEVELOPING OVER THE MOUTH OF THE MISSISSIPPI AND WILL IMPACT SOUTHERN 
  MOBILE COUNTY THEN SOUTHERN BALDWIN COUNTY THROUGH EARLY EVENING.  

ADDITIONAL RAINFALL AMOUNTS OF 2 TO 3 INCHES IN A SHORT PERIOD OF TIME ARE
LIKELY OVER THE WARNED AREA.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS...STREETS AND UNDERPASSES...AS WELL AS
OTHER POUR DRAINAGE AND LOW LYING AREAS.

RESIDENTS LIVING IN FLOOD PRONE AREAS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. REMEMBER...IT ONLY
TAKES A FEW INCHES OF SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

LAT...LON 3070 8844 3040 8840 3035 8815 3026 8812
      3025 8773 3034 8743 3049 8747 3066 8741
      3074 8754

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 6, 1:37 PM CDTSpecial Marine WarningMOB53 min
Apr 6, 2:08 PM CDTSevere Thunderstorm WarningMOBBaldwin, Mobile37 min
Apr 6, 2:30 PM CDTSpecial Marine WarningMOB90 min
Apr 6, 2:58 PM CDTSevere Thunderstorm WarningMOBBaldwin47 min
Apr 6, 3:47 PM CDTSevere Thunderstorm WarningMOBBaldwin28 min
Apr 6, 3:57 PM CDTSpecial Marine WarningMOB93 min
Apr 6, 4:27 PM CDTFlash Flood WarningMOBBaldwin, Mobile93 min
Apr 6, 4:38 PM CDTSpecial Marine WarningMOB67 min
Apr 6, 5:31 PM CDTSevere Thunderstorm WarningMOBCovington, Escambia29 min
Apr 6, 5:44 PM CDTSpecial Marine WarningMOB61 min
Apr 6, 6:00 PM CDTSevere Thunderstorm WarningMOBBaldwin45 min
Apr 6, 6:03 PM CDTSevere Thunderstorm WarningMOBCovington42 min
Apr 6, 6:45 PM CDTSpecial Marine WarningMOB90 min

Nearby

Flash Flood Warnings in Alabama, 2005Every flash flood warning in 2005

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.