Alert archive / Mississippi / Flash Flood Warnings in 2014

Flash Flood Warning 37, NWS Mobile, AL

May 29, 2014George County, Greene County, Mississippi; Mobile County, Alabama

NWS Mobile, AL issued this flash flood warning at May 29, 2014, 3:27 AM CDT for George County, Greene County, Mississippi; Mobile County, Alabama. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 29, 2014, 3:27 AM CDT (08:27 UTC)
Expired
May 29, 2014, 6:30 AM CDT
In force
3 hr
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Flood severity
None

Counties Mobile County, AL, George County, MS, Greene County, MS

The radar

The Mobile radar (KMOB), 12 km from the middle of the area, began a volume at 08:28 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.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 8.5 hours before the alert went out and 154 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 00:00Z on 2014-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 220 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 00:00Z on 2014-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 71 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
220 J/kg
Mixed-layer CIN
-56 J/kg
Mixed-layer LCL
676 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
71 m²/s²
0-3 km storm-relative helicity
116 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

399 
WGUS54 KMOB 290827
FFWMOB
ALC097-MSC039-041-291130-
/O.NEW.KMOB.FF.W.0037.140529T0827Z-140529T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
327 AM CDT THU MAY 29 2014

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN GEORGE COUNTY IN SOUTHEAST MISSISSIPPI...
  SOUTHEASTERN GREENE COUNTY IN SOUTHEAST MISSISSIPPI...
  MOBILE COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 630 AM CDT

* AT 319 AM CDT...VERY HEAVY RAINFALL WAS INDICATED OVER THE WARNED
  AREA AND RADAR ESTIMATES SHOW RAINFALL RATES OF 2 TO 3 INCHES PER
  HOUR DURING THE LAST 2 TO 3 HOURS. MORE HEAVY RAIN IS EXPECTED OVER 
  THE WARNED AREA THROUGH 630 AM CDT. THIS WILL LIKELY CAUSE FLASH 
  FLOODING IN SOME AREAS PRONE TO FLOODING THROUGH 630 AM CDT. 

* LOCATIONS IMPACTED INCLUDE...
  MIDTOWN MOBILE...     EASTERN DAUPHIN ISLAND...
  DOWNTOWN MOBILE...    CENTRAL DAUPHIN ISLAND...
  MOVICO...             CODEN...             
  WESTERN DAUPHIN ISLAND...                   TILLMANS CORNER...
  THEODORE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3023 8832 3026 8818 3036 8820 3032 8826
      3039 8840 3116 8847 3111 8833 3117 8799
      3109 8788 3113 8794 3095 8788 3088 8799
      3083 8794 3078 8802 3030 8813 3031 8819
      3025 8807 3024 8808 3022 8831

$$
1 follow-up statement
977 
WGUS74 KMOB 291107
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
607 AM CDT THU MAY 29 2014

ALC097-MSC039-041-291116-
/O.CAN.KMOB.FF.W.0037.000000T0000Z-140529T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GREENE MS-GEORGE MS-MOBILE AL-
607 AM CDT THU MAY 29 2014

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR MOBILE...EASTERN
GEORGE AND SOUTHEASTERN GREENE COUNTIES...

AT 605 AM CDT...THE HEAVY RAINFALL THAT PROMPTED THE WARNING FOR
MOBILE...EASTERN GEORGE AND SOUTHEASTERN GREENE COUNTIES HAS ENDED...
THUS THE FLASH FLOOD WARNING HAS BEEN CANCELLED. HOWEVER...PONDING OF
WATER MAY STILL BE ENCOUNTERED.

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 3023 8832 3026 8818 3036 8820 3032 8826
      3039 8840 3116 8847 3111 8833 3117 8799
      3109 8788 3113 8794 3095 8788 3088 8799
      3083 8794 3078 8802 3030 8813 3031 8819
      3025 8807 3024 8808 3022 8831

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 28, 7:23 PM CDTSevere Thunderstorm WarningMOBConecuh, Escambia67 min
May 28, 9:02 PM CDTAreal Flood AdvisoryMOBEscambia118 min
May 29, 1:28 AM CDTFlash Flood WarningMOBMobile2 hr

Nearby

Flash Flood Warnings in Mississippi, 2014Flash Flood Warnings in Alabama, 2014Every flash flood warning in 2014

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.