Alert archive / Alabama / Flash Flood Warnings in 2016

Flash Flood Warning 17, NWS Mobile, AL

March 24, 2016Mobile County, Alabama

NWS Mobile, AL issued this flash flood warning at Mar 24, 2016, 1:01 PM CDT for Mobile County, Alabama. It was in force for 3 hr. 5 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 24, 2016, 1:01 PM CDT (18:01 UTC)
Expired
Mar 24, 2016, 4:00 PM CDT
In force
3 hr
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Flood severity
None

County Mobile County, AL

The radar

The Mobile radar (KMOB), 16 km from the middle of the area, began a volume at 18:02 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 24, 1:40 PM CDTFLOOD1 Ne Mobile Airport, ALFLOOFING AT AIRWAY PARK AND SCHILLINGER BLVD
Mar 24, 1:40 PM CDTFLASH FLOOD1 Ne Mobile Regional Ai, ALFLASH FLOODING REPORTED AT AIRWAY PARK AND SCHILLINGER RD.
Mar 24, 1:40 PM CDTFLASH FLOOD1 Sw Semmes, ALWATER OVER BOTH NURSERY RD AND JEREMY DR IN THE SEMMES AREA. REPORT VIA SEMMES MAYORS OFFICE ON SOCIAL MEDIA.
Mar 24, 1:40 PM CDTFLASH FLOOD5 Nne Brookley Field Ai, ALMULTIPLE STREETS IMPASSIBLE IN DOWNTOWN MOBILE. REPORTS VIA SOCIAL MEDIA.
Mar 24, 1:40 PM CDTFLASH FLOOD5 Ssw Chickasaw, ALHIGH WATER RESCUE OF MOTORIST REPORTED AT THE INTERSECTION OF OLD SHELL RD AND BAY SHORE AVE.

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, 6.0 hours before the alert went out and 164 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 2016-03-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 844 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 2016-03-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 214 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
844 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
511 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
214 m²/s²
0-3 km storm-relative helicity
350 m²/s²
Significant tornado parameter
0.6
Supercell composite
4.4

Open this sounding in Storm Lab

The text

As transmitted.

148 
WGUS54 KMOB 241801
FFWMOB
ALC097-242100-
/O.NEW.KMOB.FF.W.0017.160324T1801Z-160324T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
101 PM CDT THU MAR 24 2016

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL MOBILE COUNTY IN SOUTHWESTERN ALABAMA...

* UNTIL 400 PM CDT

* AT 100 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  TORRENTIAL RAIN ACROSS THE WARNED AREA...INCLUDING THE MOBILE
  METRO. TWO TO THREE INCHES OF RAIN ARE POSSIBLE IN A VERY SHORT
  DURATION WHICH WILL LEAD TO FLASH FLOODING...ESPECIALLY IN URBAN
  AREAS.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  MOBILE...PRICHARD...SARALAND...SATSUMA...CHICKASAW...CREOLA...GRAND BAY...
  DOWNTOWN MOBILE...TILLMANS CORNER...THEODORE...MIDTOWN MOBILE...
  REGIONAL AIRPORT IN WEST MOBILE...AXIS...I65 AND I165...BUCKS...I10 AND
  I65...I65 AND US 43...CHUNCHULA...I65 AND US 45 AND SEMMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3045 8840 3069 8840 3103 8812 3107 8794
      3090 8796 3088 8799 3082 8797 3077 8803
      3071 8801 3070 8801 3070 8800 3069 8801
      3070 8802 3069 8802 3075 8804 3066 8803
      3064 8806 3048 8810

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 24, 10:22 AM CDTRip Current StatementMOBBaldwin, Mobile45 hr
Mar 24, 12:16 PM CDTAreal Flood AdvisoryMOBMobile119 min
Mar 24, 12:22 PM CDTSpecial Weather StatementMOBMobile38 min
Mar 24, 12:28 PM CDTSpecial Marine WarningMOB92 min
Mar 24, 12:45 PM CDTSevere Thunderstorm WarningMOBBaldwin, Mobile45 min
Mar 24, 1:16 PM CDTSevere Thunderstorm WarningMOBBaldwin, Escambia44 min
Mar 24, 1:26 PM CDTSevere Thunderstorm WarningMOBBaldwin49 min
Mar 24, 1:34 PM CDTSpecial Marine WarningMOB86 min
Mar 24, 1:46 PM CDTSevere Thunderstorm WarningMOBBaldwin, Butler, Conecuh, Covington, Crenshaw, Escambia and 1 more59 min
Mar 24, 1:51 PM CDTAreal Flood AdvisoryMOBBaldwin3 hr
Mar 24, 1:55 PM CDTSpecial Marine WarningMOB65 min
Mar 24, 2:05 PM CDTTornado WarningMOBConecuh, Covington25 min
Mar 24, 2:23 PM CDTTornado WarningMOBButler, Conecuh, Covington, Crenshaw23 min
Mar 24, 2:31 PM CDTSevere Thunderstorm WarningMOBButler, Conecuh, Covington, Crenshaw44 min
Mar 24, 2:50 PM CDTSpecial Marine WarningMOB85 min
Mar 24, 3:12 PM CDTSevere Thunderstorm WarningMOBCrenshaw33 min
Mar 24, 4:08 PM CDTSpecial Marine WarningMOB37 min

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.