Alert archive / Alabama / Flash Flood Warnings in 2008

Flash Flood Warning 19, NWS Mobile, AL

August 25, 2008Baldwin County, Mobile County, Alabama

NWS Mobile, AL issued this flash flood warning at Aug 25, 2008, 8:23 AM CDT for Baldwin County, 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 outline as issued.

The facts

Issued
Aug 25, 2008, 8:23 AM CDT (13:23 UTC)
Expired
Aug 25, 2008, 11:47 AM CDT
In force
3 hr
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Flood severity
None

Counties Baldwin County, AL, Mobile County, AL

The radar

The Mobile radar (KMOB), 30 km from the middle of the area, began a volume at 13:24 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, 1.4 hours before the alert went out and 157 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 2008-08-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 503 joules per kilogram.LCLEL10008507005003002001001 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 2008-08-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 109 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
503 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
475 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
109 m²/s²
0-3 km storm-relative helicity
90 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 251323
FFWMOB
ALC003-097-251715-
/O.NEW.KMOB.FF.W.0019.080825T1323Z-080825T1715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
823 AM CDT MON AUG 25 2008

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BALDWIN COUNTY IN SOUTHWEST ALABAMA...
  THIS INCLUDES THE CITY OF BAY MINETTE...
  MOBILE COUNTY IN SOUTHWEST ALABAMA...
  THIS INCLUDES THE CITIES OF...DOWNTOWN MOBILE...DAUPHIN ISLAND...

* UNTIL 1215 PM CDT

* AT 814 AM CDT...THE NATIONAL WEATHER SERVICE CONTINUES TO INDICATE 
  WIDESPREAD FLOODING FROM HEAVY RAIN OVER MOBILE AND BALDWIN 
  COUNTIES. 
 
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  LAURENDINE...WILMER...WHITEHOUSE FORKS...WHISTLER...WALLACE
  TUNNEL...VAUGHN...UNIVERSITY OF SOUTH ALABAMA...TURNERVILLE...
  TILLMANS CORNER...THEODORE...TENSAW...TANNER WILLIAMS...STOCKTON...
  STEELWOOD...STAPLETON...SAINT ELMO...SPRING HILL COLLEGE...SPANISH
  FORT...SNOW AND TANNER WILLIAMS...SILVERHILL...SIDNEY...SEVEN
  HILLS...SEMMES...SEMINOLE...SCHILLINGER AND THREE NOTCH...
  SATSUMA...SARALAND...SALCO...ROSINTON...ROBERTSDALE...REDTOWN...
  RABUN...PRICHARD...PINTO ISLAND...PINEOLA...PHILLIPSVILLE...
  PERDIDO...PARK CITY...OAK GROVE...MOUNT VERNON...MONTROSE...MOBILE
  INFIRMARY...MOBILE GREYHOUND PARK...MOBILE AIRPORT...MALBIS...
  MAGNOLIA GROVE GOLF COURSE...LOXLEY...LOTTIE...LOTT AND COLEMAN
  DAIRY RO...LATHAM...LANGAN PARK...LADD STADIUM...KUSHLA...KNOLLWOOD
  HOSPITAL...JACKSON OAK...IRVINGTON...I65 AND US 45...I65 AND US
  43...I65 AND MOFFETT ROAD...I65 AND I165...I65 AND CR 47...I65 AND
  AL 59...I65 AND AL 287...I65 AND AL 225...I65 AND AL 158...I65 AND
  AIRPORT BLVD...I10 NEAR THE BATTLESHIP...I10 AND MCDONALD ROAD...
  I10 AND I65 INTERSECTION...HUTCHENS ELEMENTARY SCHOOL...
  HURRICANE...HOUSTONVILLE...HOLLINGERS ISLAND...GULFCREST...
  GEORGETOWN...GATESWOOD...FORT STODDARD...FOREST HILL...FAIRHOPE...
  ELSANOR...EIGHT MILE...DYAS...DOUGLASVILLE...DEES...DAWES...
  DAPHNE...CROSSROADS...CRICHTON...CREOLA...MEDAL OF HONOR PARK...
  COCHRANE BRIDGE...CITRONELLE...CHUNCHULA...CHICKASAW...CHASTANG...
  CELESTE...CARPENTER...CARNEY...CALVERT...BUCKS...BROOKLEY FIELD
  AIRPORT...BRIDGEHEAD...BLACKSHER...BIG CREEK LAKE DAM...BIG CREEK
  LAKE...BELLEFONTAINE...AXIS...AIRPORT AND UNIVERSITY AND AIRPORT
  AND GOVERNMENT

ADDITIONAL RAINFALL AMOUNTS UP TO AROUND 2 INCHES COUNTY WIDE ARE 
POSSIBLE THROUGH NOON. 

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

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.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

LAT...LON 3037 8827 3034 8820 3035 8819 3036 8819
      3039 8837 3109 8840 3124 8766 3087 8763
      3035 8744 3034 8782 3027 8795 3035 8783
      3067 8800 3027 8819 3026 8806 3024 8832
      3031 8821 3032 8824 3022 8837

$$
1 follow-up statement
000 
WGUS74 KMOB 251647
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1147 AM CDT MON AUG 25 2008

ALC003-097-251655-
/O.CAN.KMOB.FF.W.0019.000000T0000Z-080825T1715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BALDWIN AL-MOBILE AL-
1147 AM CDT MON AUG 25 2008

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR MOBILE AND BALDWIN
COUNTIES...

THE WIDESPREAD HEAVY FLOODING RAINS HAVE MOVED EAST OF THE ALABAMA 
COASTAL COUNTIES LATE THIS MORNING.  SCATTERED LIGHTER SHOWERS AND 
ISOLATED THUNDERSTORMS WILL MOVE EAST ACROSS MOBILE AND BALDWIN 
COUNTIES THROUGH LATE AFTERNOON...BUT THIS ACTIVITY IS NOT EXPECTED 
TO CAUSE SIGNIFICANT FLASH FLOODING.  

STAY TUNED FOR FURTHER UPDATES FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 3037 8827 3034 8820 3035 8819 3036 8819
      3039 8837 3109 8840 3124 8766 3087 8763
      3035 8744 3034 8782 3027 8795 3035 8783
      3067 8800 3027 8819 3026 8806 3024 8832
      3031 8821 3032 8824 3022 8837

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 24, 10:39 PM CDTSpecial Marine WarningMOB111 min
Aug 24, 11:58 PM CDTFlash Flood WarningMOBBaldwin, Mobile5 hr
Aug 25, 12:38 AM CDTSpecial Marine WarningMOB112 min
Aug 25, 1:00 AM CDTSevere Thunderstorm WarningMOBBaldwin, Mobile45 min
Aug 25, 1:49 AM CDTSevere Thunderstorm WarningMOBBaldwin, Clarke, Escambia, Monroe56 min
Aug 25, 1:59 AM CDTTornado WarningMOBBaldwin46 min
Aug 25, 2:27 AM CDTTornado WarningMOBBaldwin18 min
Aug 25, 2:40 AM CDTSpecial Marine WarningMOB110 min
Aug 25, 3:02 AM CDTTornado WarningMOBBaldwin, Clarke, Monroe20 min
Aug 25, 3:43 AM CDTTornado WarningMOBConecuh, Escambia14 min
Aug 25, 4:10 AM CDTTornado WarningMOBMonroe50 min
Aug 25, 4:28 AM CDTTornado WarningMOBCovington47 min
Aug 25, 4:31 AM CDTSpecial Marine WarningMOB104 min
Aug 25, 4:58 AM CDTTornado WarningMOBCovington47 min
Aug 25, 5:07 AM CDTCoastal Flood WarningMOB12 hr
Aug 25, 5:20 AM CDTTornado WarningMOBWashington40 min
Aug 25, 5:23 AM CDTTornado WarningMOBCovington52 min
Aug 25, 5:34 AM CDTFlash Flood WarningMOBBaldwin, Mobile3 hr
Aug 25, 5:40 AM CDTTornado WarningMOBCovington50 min
Aug 25, 5:57 AM CDTSevere Thunderstorm WarningMOBButler, Crenshaw63 min
Aug 25, 6:14 AM CDTSpecial Marine WarningMOB91 min
Aug 25, 6:17 AM CDTSpecial Marine WarningMOB118 min
Aug 25, 6:28 AM CDTTornado WarningMOBCovington32 min
Aug 25, 6:32 AM CDTTornado WarningMOBCrenshaw43 min
Aug 25, 6:39 AM CDTSevere Thunderstorm WarningMOBButler, Covington, Crenshaw51 min
Aug 25, 6:46 AM CDTSevere Thunderstorm WarningMOBButler, Conecuh, Covington, Crenshaw44 min
Aug 25, 7:24 AM CDTSevere Thunderstorm WarningMOBMobile51 min
Aug 25, 7:31 AM CDTSevere Thunderstorm WarningMOBCrenshaw44 min
Aug 25, 8:06 AM CDTSpecial Marine WarningMOB114 min
Aug 25, 9:08 AM CDTRiver Flood WarningMOBMobile16 hr
Aug 25, 9:49 AM CDTSevere Thunderstorm WarningMOBEscambia41 min
Aug 25, 10:04 AM CDTSpecial Marine WarningMOB86 min
Aug 25, 10:30 AM CDTSevere Thunderstorm WarningMOBConecuh, Covington, Escambia45 min
Aug 25, 11:27 AM CDTSpecial Marine WarningMOB48 min
Aug 25, 12:08 PM CDTCoastal Flood WatchMOB15 hr
Aug 25, 12:21 PM CDTSevere Thunderstorm WarningMOBCovington, Crenshaw39 min
Aug 25, 12:42 PM CDTTornado WarningMOBCovington, Crenshaw33 min
Aug 25, 1:12 PM CDTSevere Thunderstorm WarningMOBCovington, Crenshaw23 min
Aug 25, 1:16 PM CDTSevere Thunderstorm WarningMOBCrenshaw44 min
Aug 25, 1:18 PM CDTFlash Flood WarningMOBCrenshaw3 hr
Aug 25, 5:11 PM CDTTornado WarningMOBButler, Conecuh, Covington34 min
Aug 25, 5:42 PM CDTTornado WarningMOBButler, Covington, Crenshaw25 min

Nearby

Flash Flood Warnings in Alabama, 2008Every flash flood warning in 2008

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.