Alert archive / Mississippi / Flash Flood Warnings in 2013

Flash Flood Warning 27, NWS Mobile, AL

July 5, 2013Wayne County, Mississippi; Washington County, Alabama

NWS Mobile, AL issued this flash flood warning at Jul 5, 2013, 12:12 AM CDT for Wayne County, Mississippi; Washington County, Alabama. It was in force for 3 hr. 1 report 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 5, 2013, 12:12 AM CDT (05:12 UTC)
Expired
Jul 5, 2013, 3:15 AM CDT
In force
3 hr
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Flood severity
None

Counties Washington County, AL, Wayne County, MS

The radar

The Mobile radar (KMOB), 109 km from the middle of the area, began a volume at 05:12 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
Jul 5, 12:16 AM CDTFLASH FLOODWaynesboro, MSSPRING STREET, SOUTH STREET, AND AZALEA STREET ARE ALL FLOODED.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 5.2 hours before the alert went out and 161 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, Jackson, MS at 00:00Z on 2013-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 902 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, Jackson, MS at 00:00Z on 2013-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -30 square meters per square second.19395878Sfc1 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
902 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
1452 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
-30 m²/s²
0-3 km storm-relative helicity
85 m²/s²
Significant tornado parameter
0.2
Supercell composite
3.6

Open this sounding in Storm Lab

The text

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

790 
WGUS54 KMOB 050512
FFWMOB
ALC129-MSC153-050815-
/O.NEW.KMOB.FF.W.0027.130705T0512Z-130705T0815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1212 AM CDT FRI JUL 5 2013

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WAYNE COUNTY IN SOUTHEAST MISSISSIPPI...
  NORTHWESTERN WASHINGTON COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 315 AM CDT

* AT 1212 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED 
  SHOWERS AND THUNDERSTORMS PRODUCING VERY HEAVY RAINFALL OVER MUCH
  OF THE WARNED AREA. RADAR ESTIMATES THAT 2 TO 4 INCHES OF RAINFALL
  HAS OCCURRED OVER THE PAST HOUR...AND AN ADDITIONAL 2 TO 3 INCHES WILL 
  BE POSSIBLE. THESE HEAVY RAINS FALLING OVER ALREADY SATURATED GROUNDS
  WILL LIKELY CAUSE FLASH FLOODING IN THE WARNED AREA.

* LOCATIONS IMPACTED INCLUDE...
  WAYNESBORO...         CLARA...              BUCKATUNNA...
  

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!

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

&&

LAT...LON 3180 8848 3170 8846 3170 8830 3159 8823
      3143 8863 3154 8869 3143 8889 3143 8891
      3164 8892

$$
1 follow-up statement
824 
WGUS74 KMOB 050557
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1257 AM CDT FRI JUL 5 2013

ALC129-MSC153-050815-
/O.CON.KMOB.FF.W.0027.000000T0000Z-130705T0815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WASHINGTON AL-WAYNE MS-
1257 AM CDT FRI JUL 5 2013

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 315 AM CDT FOR WAYNE
AND NORTHWESTERN WASHINGTON COUNTIES...

AT 1216 AM CDT...WAYNE COUNTY EMERGENCY MANAGEMENT REPORTED FLOODING 
ON SPRING...SOUTH AND AZALEA STREETS IN WAYNESBORO.

AT 1200 AM CDT...WAYNE COUNTY EMERGENCY MANAGEMENT REPORTED WATER 
COVERING THE ROADWAY ON FLATS ROAD...AND FLOODING ON U.S. HIGHWAY 45 
AT OLD WINCHESTER STREET IN BUCKATUNNA. 

AT 1255 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
DETECT SHOWERS AND THUNDERSTORMS PRODUCING VERY HEAVY RAINFALL OVER 
MUCH OF SOUTHEASTERN WAYNE COUNTY...MOVING NORTHEAST AT 15 TO 20 
MPH. MANY LOCATIONS IN THE WARNED AREA HAVE RECEIVED 4 TO 8 INCHES 
OF RAIN...WITH ISOLATED AMOUNTS OVER 10 INCHES SINCE FRIDAY EVENING. 
ADDITIONAL HEAVY RAINS OVER ALREADY SATURATED GROUNDS WILL LIKELY 
RESULT IN CONTINUED FLASH FLOODING. 

LOCATIONS IMPACTED INCLUDE...
  WAYNESBORO...         CLARA...              BUCKATUNNA...  

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!

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

&&

LAT...LON 3180 8848 3170 8846 3170 8830 3159 8823
      3143 8863 3154 8869 3143 8889 3143 8891
      3164 8892

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 7:58 PM CDTAreal Flood AdvisoryMOBGreene, Wayne107 min
Jul 4, 9:22 PM CDTFlash Flood WarningMOBWayne3 hr
Jul 4, 11:14 PM CDTAreal Flood AdvisoryMOBGreene, Perry, Wayne3 hr
Jul 4, 11:32 PM CDTFlash Flood WarningMOBGreene, Perry, Wayne3 hr
Jul 5, 9:17 AM CDTAreal Flood AdvisoryMOBBaldwin118 min
Jul 5, 11:25 AM CDTSpecial Marine WarningMOB35 min
Jul 5, 12:07 PM CDTSpecial Marine WarningMOB83 min
Jul 5, 1:26 PM CDTSpecial Marine WarningMOB94 min

Nearby

Flash Flood Warnings in Mississippi, 2013Flash 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.