Alert archive / Alabama / Flash Flood Warnings in 2007

Flash Flood Warning 15, NWS Mobile, AL

July 4, 2007Mobile County, Alabama

NWS Mobile, AL issued this flash flood warning at Jul 4, 2007, 2:31 PM CDT for Mobile County, Alabama. It was in force for 119 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
Jul 4, 2007, 2:31 PM CDT (19:31 UTC)
Expired
Jul 4, 2007, 4:30 PM CDT
In force
119 min
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 19:32 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, 7.5 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 2007-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 512 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 2007-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 44 square meters per square second.1939Sfc1 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
512 J/kg
Mixed-layer CIN
-59 J/kg
Mixed-layer LCL
737 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
44 m²/s²
0-3 km storm-relative helicity
109 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 
WGUS54 KMOB 041934
FFWMOB
ALC097-042130-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
231 PM CDT WED JUL 4 2007

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN MOBILE COUNTY IN SOUTHWEST ALABAMA...
  THIS INCLUDES THE CITY OF DOWNTOWN MOBILE...

* UNTIL 430 PM CDT

* AT 228 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  FLASH FLOODING FROM THUNDERSTORMS THAT WERE NEARLY STATIONARY OVER 
  DOWNTOWN MOBILE. ADDITIONAL HEAVY RAIN WAS OCCURRING ALONG AIRPORT   
  BOULEVARD WEST TO THE MOBILE REGIONAL AIRPORT.
 
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WALLACE    
  TUNNEL...PINTO ISLAND...MON LOUIS...ALONG WITH AREAS ALONG AIRPORT 
  BOULEVARD INTO WEST MOBILE.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

LAT...LON 3079 8834 3046 8838 3039 8809 3073 8800

$$
2 follow-up statements
000 
WGUS74 KMOB 042010
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
306 PM CDT WED JUL 4 2007

ALC097-042130-
MOBILE AL-
306 PM CDT WED JUL 4 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 430 PM CDT FOR
CENTRAL MOBILE COUNTY...

AT 302 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE THUNDERSTORMS PRODUCING FLASH FLOODING ACROSS CENTRAL 
MOBILE COUNTY. THE HEAVIEST RAINS WERE LOCATED FROM NEAR THE MOBILE 
REGIONAL AIRPORT WEST TO THE ALABAMA AND MISSISSIPPI STATE LINE.  

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO CENTRAL 
MOBILE COUNTY FROM THE AREA AROUND DOWNTOWN MOBILE WESTWARD TO THE 
MOBILE REGIONAL AIRPORT AND THE ALABAMA AND MISSISSIPPI STATE 
LINE.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

LAT...LON 3080 8842 3054 8841 3049 8807 3080 8801

$$
000 
WGUS74 KMOB 042046
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
345 PM CDT WED JUL 4 2007

ALC097-042055-
MOBILE AL-
345 PM CDT WED JUL 4 2007

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR CENTRAL MOBILE
COUNTY...

THE HEAVIEST RAIN HAS MOVED WEST INTO MISSISSIPPI AND THE THREAT FOR 
ANY ADDITIONAL SIGNIFICANT FLASH FLOODING HAS ENDED.

LAT...LON 3080 8842 3054 8841 3049 8807 3080 8801

$$

Nearby

Flash Flood Warnings in Alabama, 2007Every flash flood warning in 2007

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.