Alert archive / Alabama / Flash Flood Warnings in 2012

Flash Flood Warning 13, NWS Mobile, AL

May 2, 2012George County, Mississippi; Baldwin County, Mobile County, Alabama

NWS Mobile, AL issued this flash flood warning at May 2, 2012, 4:11 PM CDT for George County, Mississippi; Baldwin County, Mobile County, Alabama. It was in force for 4 hr. 2 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
May 2, 2012, 4:11 PM CDT (21:11 UTC)
Expired
May 2, 2012, 8:15 PM CDT
In force
4 hr
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Flood severity
None

Counties Baldwin County, AL, Mobile County, AL, George County, MS

The radar

The Mobile radar (KMOB), 6 km from the middle of the area, began a volume at 21:12 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

TimeReportWhereRemark
May 2, 6:20 PM CDTFLASH FLOODEight Mile, ALWIDESPREAD STREET FLOODING AROUND HIGHWAY 45 AND BEARFORK ROAD. THE WATER WAS ESTIMATED TO BE NEARLY A FOOT DEEP IN PLACES.
May 2, 6:20 PM CDTFLASH FLOODMobile Airport, ALSEVERAL MOBILE AREA ROADS CLOSED DUE TO FLOODING.

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 12:00Z, 9.2 hours before the alert went out and 150 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 2012-05-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2546 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 2012-05-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 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
2546 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
482 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
49 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.

766 
WGUS54 KMOB 022111
FFWMOB
ALC003-097-MSC039-030115-
/O.NEW.KMOB.FF.W.0013.120502T2111Z-120503T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
411 PM CDT WED MAY 2 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN GEORGE COUNTY IN SOUTHEAST MISSISSIPPI...
  EXTREME WEST CENTRAL BALDWIN COUNTY IN SOUTHWEST ALABAMA...
  MOBILE COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 815 PM CDT

* AT 410 PM CDT...VERY HEAVY RAINFALL WAS INDICATED OVER THE WARNED
  AREA AND RADAR ESTIMATES SHOW 2 TO 3 INCHES OF RAINFALL HAS
  OCCURRED OVER THE PAST HOUR. THIS WILL LIKELY CAUSE FLASH FLOODING
  IN THE WARNED AREA.

* LOCATIONS IMPACTED INCLUDE...
  TILLMANS CORNER...    THEODORE...           TANNER WILLIAMS...
  SEMMES...             SATSUMA...            SARALAND...
  PRICHARD...           I65 AND US 45...      I65 AND US 43...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

NEVER TRY TO CROSS OR PLAY IN AN URBAN SPILLWAY OR FLOWING CREEK...
EVEN A SMALL ONE. URBAN FLASH FLOODING IS A MAJOR KILLER.

TO REPORT FLOODING...CALL (800) 284-9059.

&&

LAT...LON 3042 8840 3073 8842 3073 8860 3095 8853
      3102 8795 3067 8799 3068 8801 3063 8805
      3060 8805 3057 8808 3053 8807 3051 8809
      3045 8810

$$
3 follow-up statements
119 
WGUS74 KMOB 022220
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
520 PM CDT WED MAY 2 2012

ALC003-097-MSC039-030115-
/O.CON.KMOB.FF.W.0013.000000T0000Z-120503T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GEORGE MS-BALDWIN AL-MOBILE AL-
520 PM CDT WED MAY 2 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR
MOBILE...EXTREME WEST CENTRAL BALDWIN AND EASTERN GEORGE COUNTIES...

AT 519 PM CDT...VERY HEAVY RAINFALL WAS INDICATED OVER THE WARNED
AREA AND RADAR ESTIMATES SHOW RAINFALL RATES OF 2 TO 3 INCHES PER
HOUR. THIS WILL LIKELY CAUSE CONTINUED FLASH FLOODING IN THE WARNED
AREA.

LOCATIONS IMPACTED INCLUDE...
  TILLMANS CORNER...    THEODORE...           TANNER WILLIAMS...
  SEMMES...             SATSUMA...            SARALAND...
  PRICHARD...           I65 AND US 45...      I65 AND US 43...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

RESIDENTS LIVING AND CAMPERS RECREATING ALONG SMALL CREEKS AND 
RIVERS...ESPECIALLY ALONG THE CHICKASAW RIVER IN AREAS LIKE 
CHICKASABOUGE PARK...CAN EXPECT RAPID RISES AND SUBSEQUENT FLOODING. 
SEEK HIGHER GROUND IMMEDIATELY IF NEEDED.

BE ESPECIALLY CAUTIOUS AS WE HEAD INTO THE NIGHTTIME HOURS AS IT IS 
HARDER TO RECOGNIZE THE DANGERS OF FLOODING.

NEVER TRY TO CROSS OR PLAY IN AN URBAN SPILLWAY OR FLOWING CREEK...
EVEN A SMALL ONE. URBAN FLASH FLOODING IS A MAJOR KILLER.

TO REPORT FLOODING...CALL (800) 284-9059.

&&

LAT...LON 3042 8840 3073 8842 3073 8860 3095 8853
      3102 8795 3067 8799 3068 8801 3063 8805
      3060 8805 3057 8808 3053 8807 3051 8809
      3045 8810

$$
511 
WGUS74 KMOB 030008
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
708 PM CDT WED MAY 2 2012

ALC003-097-MSC039-030115-
/O.CON.KMOB.FF.W.0013.000000T0000Z-120503T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GEORGE MS-BALDWIN AL-MOBILE AL-
708 PM CDT WED MAY 2 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR
MOBILE...EXTREME WEST CENTRAL BALDWIN AND EASTERN GEORGE COUNTIES...

AT 708 PM CDT...VERY HEAVY RAINFALL HAD FALLEN OVER THE WARNED AREA 
AND ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE 
THROUGH THROUGH EARLY EVENING ACROSS ALREADY SATURATED GROUND. THIS 
WILL LIKELY CAUSE CONTINUED FLASH FLOODING IN THE WARNED AREA.

NUMEROUS ACCOUNTS OF WATER OVER ROADS AND CLOSED ROADS AREA BEING 
REPORTED ACROSS MOBILE COUNTY. 

LOCATIONS IMPACTED INCLUDE...
  TILLMANS CORNER...    THEODORE...           TANNER WILLIAMS...
  SEMMES...             SATSUMA...            SARALAND...
  PRICHARD...           I65 AND US 45...      I65 AND US 43...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

TO REPORT FLOODING...CALL (800) 284-9059.

&&

LAT...LON 3042 8840 3073 8842 3073 8860 3095 8853
      3102 8795 3067 8799 3068 8801 3063 8805
      3060 8805 3057 8808 3053 8807 3051 8809
      3045 8810

$$

PURDY
482 
WGUS74 KMOB 030009 CCA
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
709 PM CDT WED MAY 2 2012

ALC003-097-MSC039-030115-
/O.CON.KMOB.FF.W.0013.000000T0000Z-120503T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GEORGE MS-BALDWIN AL-MOBILE AL-
709 PM CDT WED MAY 2 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR
MOBILE...EXTREME WEST CENTRAL BALDWIN AND EASTERN GEORGE COUNTIES...

AT 708 PM CDT...VERY HEAVY RAINFALL HAD FALLEN OVER THE WARNED AREA 
AND ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE 
THROUGH EARLY EVENING WHERE THE GROUND IS ALREADY SATURATED. THIS 
WILL LIKELY CAUSE CONTINUED FLASH FLOODING IN THE WARNED AREA.

NUMEROUS ACCOUNTS OF WATER OVER ROADS AND CLOSED ROADS AREA BEING 
REPORTED ACROSS MOBILE COUNTY. 

LOCATIONS IMPACTED INCLUDE...
  TILLMANS CORNER...    THEODORE...           TANNER WILLIAMS...
  SEMMES...             SATSUMA...            SARALAND...
  PRICHARD...           I65 AND US 45...      I65 AND US 43...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

TO REPORT FLOODING...CALL (800) 284-9059.

&&

LAT...LON 3042 8840 3073 8842 3073 8860 3095 8853
      3102 8795 3067 8799 3068 8801 3063 8805
      3060 8805 3057 8808 3053 8807 3051 8809
      3045 8810

$$

PURDY

The office that day

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

IssuedProductOfficeCountiesLasted
May 2, 11:36 AM CDTRip Current StatementMOB17 hr
May 2, 3:14 PM CDTAreal Flood AdvisoryMOBMobile2 hr
May 2, 6:04 PM CDTSpecial Marine WarningMOB41 min
May 2, 6:51 PM CDTSpecial Marine WarningMOB54 min

Nearby

Flash Flood Warnings in Alabama, 2012Flash Flood Warnings in Mississippi, 2012Every flash flood warning in 2012

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.