Alert archive / Alabama / Flash Flood Warnings in 2016

Flash Flood Warning 14, NWS Mobile, AL

March 11, 2016Baldwin County, Mobile County, Alabama

NWS Mobile, AL issued this flash flood warning at Mar 11, 2016, 11:04 AM CST for Baldwin County, Mobile County, Alabama. It was in force for 6 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
Mar 11, 2016, 11:04 AM CST (17:04 UTC)
Expired
Mar 11, 2016, 5:00 PM CST
In force
6 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), 29 km from the middle of the area, began a volume at 17:04 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
Mar 11, 12:00 PM CSTFLASH FLOOD5 Sse Chickasaw, ALWATER OVER THE ROADWAY ON OAK STREET IN MIDTOWN MOBILE. REPORT RELAYED VIA SOCIAL MEDIA.
Mar 11, 12:00 PM CSTFLASH FLOOD6 S Chickasaw, ALWATER OVER THE ROADWAYS NEAR MURPHY HIGH SCHOOL ON SOUTH CARLEN DRIVE IN MIDTOWN MOBILE. REPORT RELAYED VIA SOCIAL MEDIA.

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, 5.1 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 2016-03-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1067 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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 2016-03-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 320 square meters per square second.193958Sfc1 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
1067 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
479 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
320 m²/s²
0-3 km storm-relative helicity
277 m²/s²
Significant tornado parameter
1.4
Supercell composite
10.4

Open this sounding in Storm Lab

The text

As transmitted.

403 
WGUS54 KMOB 111704
FFWMOB
ALC003-097-112300-
/O.NEW.KMOB.FF.W.0014.160311T1704Z-160311T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1104 AM CST FRI MAR 11 2016

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN BALDWIN COUNTY IN SOUTHWESTERN ALABAMA...
  EASTERN MOBILE COUNTY IN SOUTHWESTERN ALABAMA...

* UNTIL 500 PM CST

* AT 1102 AM CST...DOPPLER RADAR INDICATED HEAVY RAIN ACROSS THE
  WARNED AREA. FLASH FLOODING IS EXPECTED.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  MOBILE...PRICHARD...DAPHNE...FAIRHOPE...SARALAND...BAY MINETTE...SPANISH
  FORT...SATSUMA...CHICKASAW...CREOLA...POINT CLEAR...DOWNTOWN MOBILE...
  MOUNT VERNON...I65 AND AL 59...I65 AND I165...I10 AND I65...STAPLETON...
  DAPHNE--FAIRHOPE...I65 AND AL 287 AND I65 AND AL 225.

ADDITIONAL RAINFALL AMOUNTS OF 2 TO 5 INCHES ARE POSSIBLE IN THE
WARNED AREA THROUGH MID AFTERNOON. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF NEEDED MOVE TO HIGHER GROUND NOW! ACT QUICKLY TO PROTECT YOUR
LIFE.

IF YOU ENCOUNTER FLOODED ROADS...TURN AROUND...DON'T DROWN! MOST FLOOD
DEATHS OCCUR IN VEHICLES.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 3032 8818 3114 8804 3117 8799 3114 8787
      3128 8783 3130 8771 3123 8762 3041 8785
      3040 8789 3049 8794 3065 8793 3074 8803
      3067 8802 3067 8803 3075 8804 3038 8811

$$
1 follow-up statement
748 
WGUS74 KMOB 111959
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
159 PM CST FRI MAR 11 2016

ALC003-097-112009-
/O.CAN.KMOB.FF.W.0014.000000T0000Z-160311T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BALDWIN AL-MOBILE AL-
159 PM CST FRI MAR 11 2016

...THE FLASH FLOOD WARNING FOR WESTERN BALDWIN AND EASTERN MOBILE
COUNTIES IS CANCELLED...

FLOOD WATERS HAVE RECEDED. FLOODING IS NO LONGER EXPECTED TO POSE A
THREAT. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES.

LAT...LON 3032 8818 3114 8804 3117 8799 3114 8787
      3128 8783 3130 8771 3123 8762 3041 8785
      3040 8789 3049 8794 3065 8793 3074 8803
      3067 8802 3067 8803 3075 8804 3038 8811

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 10, 7:36 PM CSTRiver Flood WarningMOBChoctaw, Clarke, Washington11 days
Mar 10, 7:36 PM CSTRiver Flood WarningMOBChoctaw, Clarke, Washington11 days
Mar 10, 8:19 PM CSTAreal Flood AdvisoryMOBChoctaw3 hr
Mar 10, 9:16 PM CSTFlash Flood WarningMOBChoctaw3 hr
Mar 10, 10:52 PM CSTAreal Flood WarningMOBChoctaw9 hr
Mar 11, 7:34 AM CSTAreal Flood WarningMOBChoctaw, Washington6 hr
Mar 11, 8:15 AM CSTSevere Thunderstorm WarningMOBMobile, Washington30 min
Mar 11, 8:42 AM CSTAreal Flood AdvisoryMOBMobile3 hr
Mar 11, 8:45 AM CSTSpecial Weather StatementMOBMobile60 min
Mar 11, 8:55 AM CSTSpecial Marine WarningMOB65 min
Mar 11, 9:20 AM CSTSpecial Marine WarningMOB55 min
Mar 11, 9:28 AM CSTFlash Flood WarningMOBMobile, Washington6 hr
Mar 11, 9:41 AM CSTSpecial Weather StatementMOBBaldwin, Mobile, Washington64 min
Mar 11, 9:42 AM CSTFlash Flood WarningMOBChoctaw6 hr
Mar 11, 9:59 AM CSTSpecial Marine WarningMOB61 min
Mar 11, 10:42 AM CSTAreal Flood AdvisoryMOBBaldwin3 hr
Mar 11, 10:45 AM CSTSpecial Weather StatementMOBBaldwin45 min
Mar 11, 10:50 AM CSTAreal Flood AdvisoryMOBClarke4 hr
Mar 11, 10:58 AM CSTSpecial Marine WarningMOB62 min
Mar 11, 11:22 AM CSTFlash Flood WarningMOBClarke6 hr
Mar 11, 11:29 AM CSTSpecial Weather StatementMOBBaldwin61 min
Mar 11, 11:59 AM CSTSpecial Marine WarningMOB61 min
Mar 11, 12:16 PM CSTAreal Flood AdvisoryMOBBaldwin4 hr
Mar 11, 2:14 PM CSTAreal Flood WarningMOBChoctaw, Clarke, Washington24 hr
Mar 11, 3:54 PM CSTAreal Flood WarningMOBMobile12 hr

Nearby

Flash Flood Warnings in Alabama, 2016Every flash flood warning in 2016

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.