Alert archive / Alabama / Flash Flood Warnings in 2008

Flash Flood Warning 2, NWS Mobile, AL

April 5, 2008Baldwin County, Mobile County, Alabama

NWS Mobile, AL issued this flash flood warning at Apr 5, 2008, 12:10 AM CDT for Baldwin County, Mobile County, Alabama. It was in force for 8 hr. 10 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 5, 2008, 12:10 AM CDT (05:10 UTC)
Expired: Apr 5, 2008, 8:15 AM CDT
In force: 8 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), 40 km from the middle of the area, began a volume at 05:12 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.

What was reported inside it

Time	Report	Where	Remark
Apr 5, 2:55 AM CDT	FLASH FLOOD	Chickasaw, AL	NUMEROUS ROADS UNDER WATER IN THE CITY OF CHICKASAW INCLUDING TELEGRAPH ROAD...12TH AVENUE...AND US HIGHWAY 43 AT GRANT STREET. ALSO...MULTIPLE REPORTS OF CARS UNDER WATER.
Apr 5, 3:05 AM CDT	FLASH FLOOD	Saraland, AL	WATER OVER SEVERAL ROADS IN THE CITY OF SARALAND...ESPECIALLY IN THE SHELTON BEACH ESTATES AREA. WATER WAS ENTERING A HOUSE ON COURTAULDS AVENUE.
Apr 5, 3:10 AM CDT	FLASH FLOOD	Prichard, AL	PRICHARD POLICE REPORTS NUMEROUS ROADS FLOODED ACROSS THE CITY. A CAR WAS SUBMERGED NEAR THE INTERSECTION OF MARSH AVENUE AND HAIG STREET.
Apr 5, 3:20 AM CDT	FLASH FLOOD	Downtown Mobile, AL	MOBILE POLICE REPORTS NUMEROUS FLOODED ROADS IN DOWNTOWN MOBILE. PORTIONS OF SOME ROADS ARE BEING CLOSED...ESPECIALLY EAST OF I-65... INCLUDING PARTS OF OLD SHELL RD...UNION AVE...BAY SHORE AVE...FLORIDA ST...JOSEPHINE AVE...HIGHLAND AVE...DAUPHIN ST...SAGE AV
Apr 5, 4:00 AM CDT	FLASH FLOOD	W Satsuma, AL	WATER REPORTED OVER THE ROAD AND ENTERING HOMES ALONG ORCHARD STREET
Apr 5, 6:15 AM CDT	FLASH FLOOD	Chickasaw, AL	CHICKASAW POLICE INDICATES FLOODING CONTINUES ACROSS THE CITY...ESPECIALLY IN THE TELEGRAPH ROAD AREA. SOME VEHICLES ARE STALLED IN FLOOD WATERS.
Apr 5, 6:15 AM CDT	FLASH FLOOD	I65 And Airport Blvd, AL	MOBILE POLICE REPORTS THAT FLASH FLOODING IS STILL ONGOING...NOW ACROSS THE ENTIRE CITY OF MOBILE. SEVERAL CARS ARE STILL SUBMERGED AND WATER RESCUES HAVE BEEN TAKING PLACE DURING THE EARLY MORNING HOURS.
Apr 5, 6:15 AM CDT	FLASH FLOOD	Prichard, AL	PRICHARD POLICE REPORTS FLOODING CONTINUES ACROSS MUCH OF THE CITY...ESPECIALLY IN THE ALABAMA VILLAGE AREA. SOME VEHICLES HAVE BEEN SUBMERGED BY FLOOD WATERS.
Apr 5, 6:15 AM CDT	FLASH FLOOD	Saraland, AL	SEVERAL ROADS REMAIN FLOODED ACROSS THE CITY...ESPECIALLY IN THE SHELTON BEACH AREA AND LOCATIONS SURROUNDING BAYOU SARA. SOME HOMES WERE FLOODED IN THE SHELTON BEACH ESTATES AREA.
Apr 5, 7:20 AM CDT	FLASH FLOOD	1 Wsw Knollwood Hospita, AL	2 TO 3 FEET OF WATER WERE REPORTED OVER HILLCREST ROAD DUE TO HALLS MILL CREEK LEAVING ITS BANKS.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 5.2 hours before the alert went out and 188 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: 1152 J/kg
Mixed-layer CIN: -54 J/kg
Mixed-layer LCL: 931 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 111 m²/s²
0-3 km storm-relative helicity: 134 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 2.5

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KMOB 050514
FFWMOB
ALC003-097-050915-
/O.NEW.KMOB.FF.W.0002.080405T0510Z-080405T0915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1210 AM CDT SAT APR 5 2008

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

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

* UNTIL 415 AM CDT

* AT 1208 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR AND NWS    
  EMPLOYEES INDICATED FLASH FLOODING FROM THUNDERSTORMS OVER THE     
  WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO...
  WEST MOBILE...DOWNTOWN MOBILE...SPANISH FORT...AND BAY MINETTE.   

ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE POSSIBLE IN THE 
WARNED AREA.

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 3097 8759 3086 8762 3073 8750 3057 8744
      3051 8795 3064 8795 3066 8802 3050 8809
      3046 8839 3111 8844 3117 8794 3124 8785
      3128 8769
TIME...MOT...LOC 0510Z 312DEG 0KT 3091 8759 3064 8837

$$

3 follow-up statements

000 
WGUS74 KMOB 050700
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
153 AM CDT SAT APR 5 2008

ALC003-097-050915-
/O.CON.KMOB.FF.W.0002.000000T0000Z-080405T0915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BALDWIN AL-MOBILE AL-
153 AM CDT SAT APR 5 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 415 AM CDT FOR
MOBILE AND NORTHERN BALDWIN COUNTIES...

AT 152 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE THUNDERSTORMS PRODUCING FLASH FLOODING OVER THE WARNED 
AREA. THUNDERSTORMS CONTINUE TO TRAIN ACROSS THE SAME AREAS THIS 
MORNING. TOTAL RAINFALL AMOUNTS RANGE FROM 2 TO 4 INCHES IN BALDWIN 
COUNTY TO 4 TO 6 INCHES IN CENTRAL MOBILE COUNTY. ADDITIONAL 
RAINFALL OF 1 TO 3 INCHES IS POSSIBLE THROUGH THE MORNING.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO...
ALONG AND NORTH OF A LINE FROM MOBILE REGIONAL AIRPORT TO PRICHARD 
TO WHITEHOUSE FORKS. 

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 3097 8759 3086 8762 3073 8750 3057 8744
      3051 8795 3064 8795 3066 8802 3050 8809
      3046 8839 3111 8844 3117 8794 3124 8785
      3128 8769
TIME...MOT...LOC 0653Z 180DEG 0KT 3091 8759 3064 8837

$$

000 
WGUS54 KMOB 050840
FFWMOB
ALC003-097-051315-
/O.EXT.KMOB.FF.W.0002.000000T0000Z-080405T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
340 AM CDT SAT APR 5 2008

THE NATIONAL WEATHER SERVICE IN MOBILE HAS EXTENDED THE

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

* UNTIL 815 AM CDT

* AT 325 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  FLASH FLOODING FROM THUNDERSTORMS OVER THE WARNED AREA. RADAR      
  ESTIMATES 4 TO 8 INCHES OF RAIN HAS FALLEN ACROSS CENTRAL MOBILE   
  AND NORTHERN BALDWIN COUNTIES. RADAR AND SURFACE REPORTS INDICATE  
  THAT AROUND 7 TO 8 INCHES OF RAIN HAS FALLEN FROM NEAR THE         
  MOBILE REGIONAL AIRPORT TO PRICHARD TO SARALAND. SERIOUS FLOODING  
  HAS BEEN REPORTED IN SOME OF THESE AREAS AND ACROSS OTHER          
  PORTIONS OF MOBILE COUNTY. NUMEROUS ROADS ARE EITHER CLOSED OR     
  BEING CLOSED. ADDITIONAL MODERATE TO HEAVY RAINS WILL MOVE ACROSS  
  THE AREA THROUGH THE MORNING WITH ADDITIONAL RAINFALL AMOUNTS OF 2 
  TO 4 INCHES.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO...
  ALL OF CENTRAL AND NORTHERN MOBILE AND BALDWIN COUNTIES.    

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 3097 8759 3086 8762 3073 8750 3057 8744
      3051 8795 3064 8795 3066 8802 3050 8809
      3046 8839 3111 8844 3117 8794 3124 8785
      3128 8769
TIME...MOT...LOC 0829Z 180DEG 0KT 3091 8759 3064 8837

$$

000 
WGUS74 KMOB 051016
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
513 AM CDT SAT APR 5 2008

ALC003-097-051315-
/O.CON.KMOB.FF.W.0002.000000T0000Z-080405T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BALDWIN AL-MOBILE AL-
513 AM CDT SAT APR 5 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 AM CDT FOR
MOBILE AND NORTHERN BALDWIN COUNTIES...

AT 513 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE THUNDERSTORMS PRODUCING FLASH FLOODING OVER THE WARNED 
AREA. A LINE OF HEAVY RAIN IS MOVING ACROSS THE WARNED AREA AT THIS 
TIME AND WILL ONLY AGGRAVATE ONGOING FLOODING. ADDITIONAL RAINFALL 
AMOUNTS OF 2 TO 3 INCHES ARE POSSIBLE.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO...NORTHERN 
AND CENTRAL MOBILE AND BALDWIN COUNTIES.

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 3097 8759 3086 8762 3073 8750 3057 8744
      3051 8795 3064 8795 3066 8802 3050 8809
      3046 8839 3111 8844 3117 8794 3124 8785
      3128 8769
TIME...MOT...LOC 1013Z 180DEG 0KT 3091 8759 3064 8837

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 4, 7:40 PM CDT	Tornado Warning	MOB	Mobile, Washington	50 min
Apr 4, 8:00 PM CDT	Severe Thunderstorm Warning	MOB	Mobile	45 min
Apr 4, 8:37 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Mobile	38 min
Apr 4, 8:41 PM CDT	Special Marine Warning	MOB		51 min
Apr 4, 10:40 PM CDT	Severe Thunderstorm Warning	MOB	Conecuh, Escambia	50 min
Apr 4, 11:41 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin	24 min
Apr 5, 5:34 AM CDT	Special Marine Warning	MOB		56 min
Apr 5, 8:42 AM CDT	Special Marine Warning	MOB		93 min
Apr 5, 8:45 AM CDT	Flash Flood Warning	MOB	Baldwin	2 hr
Apr 5, 9:43 AM CDT	Flash Flood Watch	MOB	Covington, Escambia	4 hr
Apr 5, 10:13 AM CDT	Special Marine Warning	MOB		32 min
Apr 5, 10:22 AM CDT	Special Marine Warning	MOB		83 min
Apr 5, 10:42 AM CDT	Flash Flood Warning	MOB	Baldwin	2 hr
Apr 5, 11:14 AM CDT	River Flood Warning	MOB	Baldwin	26 hr
Apr 5, 11:14 AM CDT	River Flood Warning	MOB	Covington, Escambia	11 hr
Apr 5, 11:14 AM CDT	River Flood Warning	MOB	Escambia	11 hr
Apr 5, 11:41 AM CDT	Special Marine Warning	MOB		36 min
Apr 5, 1:11 PM CDT	River Flood Warning	MOB	Covington, Escambia	9 hr
Apr 5, 1:11 PM CDT	River Flood Warning	MOB	Baldwin	37 hr

Nearby

Flash Flood Warnings in Alabama, 2008 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.