Alert archive / Alabama / Flash Flood Warnings in 2013

Flash Flood Warning 32, NWS Mobile, AL

July 11, 2013Baldwin County, Alabama

NWS Mobile, AL issued this flash flood warning at Jul 11, 2013, 10:00 AM CDT for Baldwin County, Alabama. It was in force for 3 hr. 8 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
Jul 11, 2013, 10:00 AM CDT (15:00 UTC)
Expired
Jul 11, 2013, 1:00 PM CDT
In force
3 hr
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Flood severity
None

County Baldwin County, AL

The radar

The Mobile radar (KMOB), 41 km from the middle of the area, began a volume at 15:04 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
Jul 11, 10:40 AM CDTFLASH FLOOD2 Wnw Magnolia Springs, ALBALDWIN COUNTY EMA REPORTED FLOODING OF COUNTY ROAD 9 NEAR HIGHWAY 98.
Jul 11, 10:40 AM CDTFLASH FLOOD3 E Point Clear, ALBALDWIN COUNTY EMA REPORTED FLOODING OF HIGHWAY 181 NEAR THE INTERSECTION OF COUNTY ROAD 32. THEY REPORTED WATER TO A DEPTH OF 6 TO 8 INCHES FLOWING ACROSS THE ROAD.
Jul 11, 11:07 AM CDTFLASH FLOOD3 Ne Fairhope, ALREPORT RECEIVED OF FAST FLOWING WATER OF UP TO A FOOT DEEP NEAR THE INTERSECTION OF 181 AND 104.
Jul 11, 11:07 AM CDTFLASH FLOODBarnwell, ALFLOODING REPORTED ALONG HWY 98 NEAR BARNWELL
Jul 11, 11:10 AM CDTFLOOD2 E Fairhope, ALWATER OVER THE INTERSECTION OF 181 AND 48.
Jul 11, 11:10 AM CDTFLOOD3 Ne Fairhope, ALFLOODING REPORTED AT THE INTERSECTION OF HWY 104 AND CR 13.
Jul 11, 12:08 PM CDTFLASH FLOOD2 E Fairhope, ALBALDWIN COUNTY EMA RELAYED BALDIN COUNTY SHERRIFFS OFFICE REPORT OF MULTIPLE HOMES FLOODED ON 181 NORTH OF TWIN BEECH ROAD/CO ROAD 44.
Jul 11, 12:08 PM CDTFLASH FLOODFairhope, ALMULTIPLE CARS STRANDED DUE TO HIGH WATER ON ROADS IN FAIHOPE. REPORTED BY BALDWIN COUNTY EMA.

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, 3.0 hours before the alert went out and 177 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 2013-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1294 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 2013-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 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
1294 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
804 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
11 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.

490 
WGUS54 KMOB 111500
FFWMOB
ALC003-111800-
/O.NEW.KMOB.FF.W.0032.130711T1500Z-130711T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1000 AM CDT THU JUL 11 2013

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHWESTERN BALDWIN COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 100 PM CDT

* AT 952 AM CDT...VERY HEAVY RAINFALL WAS INDICATED OVER THE WARNED
  AREA. RADAR ESTIMATES SHOW 2 TO 4 INCHES OF RAINFALL HAS
  OCCURRED OVER THE PAST HOUR ACROSS PORTIONS OF WESTERN BALDWIN 
  COUNTY...ESPECIALLY ALONG AND NEAR THE HIGHWAY 98 CORRIDOR FROM 
  DAPHNE SOUTH TO EAST OF POINT CLEAR. ADDITIONAL HEAVY RAINFALL 
  OVER THE NEXT COUPLE OF HOURS WILL LIKELY CAUSE FLASH FLOODING IN
  THE WARNED AREA.

* LOCATIONS IMPACTED INCLUDE...
  POINT CLEAR...        MAGNOLIA SPRINGS...   FAIRHOPE...
  DAPHNE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS FLOODING IS IMMINENT OR OCCURRING. SEEK
HIGHER GROUND IMMEDIATELY. DO NOT DRIVE OR WALK INTO AREAS WHERE
WATER CROSSES A ROAD. TURN AROUND - DON'T DROWN!

IF YOU ARE IN DANGER FROM THE FLOOD WATERS AND NEED RESCUE ASSISTANCE
CALL 911. TO REPORT FLOODING TO THE NATIONAL WEATHER SERVICE CALL
(800) 284-9059.

&&

LAT...LON 3033 8782 3037 8785 3041 8792 3051 8793
      3054 8791 3057 8791 3058 8792 3062 8792
      3064 8793 3064 8779 3032 8776

$$
2 follow-up statements
205 
WGUS74 KMOB 111547
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1047 AM CDT THU JUL 11 2013

ALC003-111800-
/O.CON.KMOB.FF.W.0032.000000T0000Z-130711T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BALDWIN AL-
1047 AM CDT THU JUL 11 2013

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 100 PM CDT FOR
SOUTHWESTERN BALDWIN COUNTY...

MORE HEAVY RAINFALL IS ON THE WAY FOR THE WARNED AREA IN THE NEXT 1 
TO 2 HOURS...PERHAPS UP TO 2 TO 3 MORE INCHES OVER WESTERN BALDWIN 
COUNTY.

AT 1036 AM CDT...VERY HEAVY RAINFALL WAS INDICATED OVER THE WARNED 
AREA AND RADAR ESTIMATES SHOW 4.5 TO 5.5 INCHES OF RAINFALL HAS 
OCCURRED OVER THE PAST HOUR. THIS WILL LIKELY CAUSE CONTINUED FLASH 
FLOODING IN THE WARNED AREA.

REPORTS HAVE ALREADY BEEN RECEIVED OF FLOODING ALONG HIGHWAY 1 NEAR 
POINT CLEAR AND ALSO WATER WAS REPORTED TO BE FLOWING ACROSS THE 
ROAD NEAR THE INTERSECTIONS OF HIGHWAYS 181 AND 32. THE SOURCE WAS 
THE BALDWIN COUNTY EMA.

LOCATIONS IMPACTED INCLUDE...
  POINT CLEAR...        MAGNOLIA SPRINGS...   FAIRHOPE...
  DAPHNE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS FLOODING IS IMMINENT OR OCCURRING. SEEK
HIGHER GROUND IMMEDIATELY. DO NOT DRIVE OR WALK INTO AREAS WHERE
WATER CROSSES A ROAD. TURN AROUND - DON'T DROWN!

IF YOU ARE IN DANGER FROM THE FLOOD WATERS AND NEED RESCUE ASSISTANCE
CALL 911. TO REPORT FLOODING TO THE NATIONAL WEATHER SERVICE CALL
(800) 284-9059.

&&

LAT...LON 3033 8782 3037 8785 3041 8792 3051 8793
      3054 8791 3057 8791 3058 8792 3062 8792
      3064 8793 3064 8779 3032 8776

$$
379 
WGUS74 KMOB 111637
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1137 AM CDT THU JUL 11 2013

ALC003-111800-
/O.CON.KMOB.FF.W.0032.000000T0000Z-130711T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BALDWIN AL-
1137 AM CDT THU JUL 11 2013

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 100 PM CDT FOR
SOUTHWESTERN BALDWIN COUNTY...

AT 1127 AM CDT...MODERATE TO VERY HEAVY RAINFALL CONTINUES TO FALL 
OVER THE WARNED AREA AND SEVERAL REPORTS OF FLASH FLOODING HAVE BEEN 
REPORTED DURING THE PAST HOUR. RADAR INDICATES THAT SOME LOCATIONS 
HAVE RECEIVE BETWEEN 6 AND 8 INCHES DURING THE PAST TWO TO THREE 
HOURS.

THROUGH 1 PM CDT...ALTHOUGH THE RAIN WILL TAPER AS A WHOLE...SOME 
STORMS WILL REMAIN CAPABLE OF DUMPING 1 TO 2 INCHES OF ADDITIONAL 
RAIN IN AN HOUR. THE RAINFALL IS MOVING SLOWLY TO THE SOUTH LESS 
THAN 10 MPH. 

LOCATIONS IMPACTED INCLUDE...
  POINT CLEAR...        MAGNOLIA SPRINGS...   FAIRHOPE...
  DAPHNE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS FLOODING IS IMMINENT OR OCCURRING. SEEK
HIGHER GROUND IMMEDIATELY. DO NOT DRIVE OR WALK INTO AREAS WHERE
WATER CROSSES A ROAD. TURN AROUND - DON'T DROWN!

IF YOU ARE IN DANGER FROM THE FLOOD WATERS AND NEED RESCUE ASSISTANCE
CALL 911. TO REPORT FLOODING TO THE NATIONAL WEATHER SERVICE CALL
(800) 284-9059.

&&

LAT...LON 3033 8782 3037 8785 3041 8792 3051 8793
      3054 8791 3057 8791 3058 8792 3062 8792
      3064 8793 3064 8779 3032 8776

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 11, 5:45 AM CDTSpecial Marine WarningMOB90 min
Jul 11, 7:07 AM CDTSpecial Marine WarningMOB83 min
Jul 11, 9:23 AM CDTAreal Flood AdvisoryMOBBaldwin, Mobile3 hr
Jul 11, 11:58 AM CDTAreal Flood AdvisoryMOBBaldwin, Mobile2 hr
Jul 11, 12:57 PM CDTAreal Flood WarningMOBBaldwin6 hr
Jul 11, 1:13 PM CDTAreal Flood AdvisoryMOBEscambia2 hr
Jul 11, 5:04 PM CDTRiver Flood WarningMOBBaldwin18 hr
Jul 11, 5:04 PM CDTRiver Flood WarningMOBBaldwin25 hr
Jul 11, 6:46 PM CDTAreal Flood WarningMOBBaldwin8 hr

Nearby

Flash Flood Warnings in Alabama, 2013Every flash flood warning in 2013

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.