Alert archive / Alabama / Flash Flood Warnings in 2014

Flash Flood Warning 10, NWS Mobile, AL

April 7, 20146 counties in Alabama; Wayne County, Mississippi

NWS Mobile, AL issued this flash flood warning at Apr 7, 2014, 3:50 AM CDT for 6 counties in Alabama; Wayne County, Mississippi. It was in force for 4 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
Apr 7, 2014, 3:50 AM CDT (08:50 UTC)
Expired
Apr 7, 2014, 7:45 AM CDT
In force
4 hr
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Flood severity
None

Counties Choctaw County, AL, Clarke County, AL, Conecuh County, AL, Monroe County, AL, Washington County, AL, Wilcox County, AL, Wayne County, MS

The radar

The Mobile radar (KMOB), 158 km from the middle of the area, began a volume at 08:52 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
Apr 7, 4:47 AM CDTFLASH FLOOD3 S Grove Hill, ALCLARKE COUNTY EMA REPORTS WATER OVER THE ROADWAY AT MULTIPLE LOCATIONS ON ALLEN WALKER RD SOUTHEAST OF GROVE HILL.

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

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 8.8 hours before the alert went out and 162 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, Birmingham, AL at 00:00Z on 2014-04-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 00:00Z on 2014-04-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 135 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
630 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
135 m²/s²
0-3 km storm-relative helicity
634 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.

105 
WGUS54 KMOB 070850
FFWMOB
ALC023-025-035-099-129-131-MSC153-071245-
/O.NEW.KMOB.FF.W.0010.140407T0850Z-140407T1245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
350 AM CDT MON APR 7 2014

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTH CENTRAL CONECUH COUNTY IN SOUTH CENTRAL ALABAMA...
  NORTHERN MONROE COUNTY IN SOUTH CENTRAL ALABAMA...
  WILCOX COUNTY IN SOUTH CENTRAL ALABAMA...
  WAYNE COUNTY IN SOUTHEAST MISSISSIPPI...
  CHOCTAW COUNTY IN SOUTHWEST ALABAMA...
  CLARKE COUNTY IN SOUTHWEST ALABAMA...
  NORTHERN WASHINGTON COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 745 AM CDT

* AT 350 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE 
  MONITORING NUMEROUS SHOWERS AND THUNDERSTORMS TRAINING FROM 
  NORTHERN WAYNE COUNTY MISSISSIPPI...AND THROUGH MUCH OF 
  CHOCTAW...WILCOX...AND NORTHERN WASHINGTON...CLARKE AND MONROE
  COUNTIES. MANY LOCATIONS IN THE WARNED AREA ARE SATURATED FROM
  RECENT HEAVY RAINFALL...AND AN ADDITIONAL 1 TO 2 INCHES OF RAINFALL
  WILL BE POSSIBLE WITH THESE SHOWERS AND STORMS...LIKELY LEADING
  TO FLASH FLOODING IN THE WARNED AREA.

* LOCATIONS IMPACTED INCLUDE...
  BUTLER...             WAYNESBORO...         CLARA...
  BUCKATUNNA...         TOXEY...              SILAS...
  THOMASVILLE...        CAMDEN...             VREDENBURGH...

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 3228 8794 3228 8801 3218 8800 3208 8804
      3205 8811 3200 8810 3199 8806 3201 8763
      3213 8763 3214 8753 3226 8753 3228 8745
      3205 8717 3205 8700 3162 8698 3150 8895
      3182 8895 3190 8848 3231 8842 3231 8793

$$
1 follow-up statement
973 
WGUS74 KMOB 071012
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
512 AM CDT MON APR 7 2014

ALC023-025-035-099-129-131-MSC153-071245-
/O.CON.KMOB.FF.W.0010.000000T0000Z-140407T1245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHOCTAW AL-CONECUH AL-MONROE AL-WASHINGTON AL-WILCOX AL-WAYNE MS-
CLARKE AL-
512 AM CDT MON APR 7 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 AM CDT FOR
CLARKE...WAYNE...WILCOX...NORTHERN WASHINGTON...NORTHERN MONROE...
NORTH CENTRAL CONECUH AND CHOCTAW COUNTIES...

AT 447 AM CDT...CLARKE COUNTY EMERGENCY MANAGEMENT REPORTED WATER 
OVER THE ROADWAY AT MULTIPLE LOCATIONS ON ALLEN WALKER ROAD TO THE 
SOUTHEAST OF GROVE HILL. 

AT 512 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED 
NUMEROUS SHOWERS AND THUNDERSTORMS OVER THE WARNED AREA WITH 
ADDITIONAL STORM DEVELOPMENT APPROACHING FROM THE SOUTHWEST. HEAVY 
RAINS WILL LIKELY CAUSE CONTINUED FLASH FLOODING IN THE WARNED AREA.

LOCATIONS IMPACTED INCLUDE...
  BUTLER...             WAYNESBORO...         CLARA...
  BUCKATUNNA...         TOXEY...              SILAS... 
  GROVE HILL...         CAMDEN...             VREDENBURGH...

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 3228 8794 3228 8801 3218 8800 3208 8804
      3205 8811 3200 8810 3199 8806 3201 8763
      3213 8763 3214 8753 3226 8753 3228 8745
      3205 8717 3205 8700 3162 8698 3150 8895
      3182 8895 3190 8848 3231 8842 3231 8793

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 6, 7:16 PM CDTSevere Thunderstorm WarningMOBButler, Crenshaw74 min
Apr 6, 7:36 PM CDTSevere Thunderstorm WarningMOBButler, Crenshaw24 min
Apr 6, 8:01 PM CDTSevere Thunderstorm WarningMOBCrenshaw14 min
Apr 6, 11:30 PM CDTAreal Flood WarningMOBButler, Choctaw, Clarke, Conecuh, Covington, Crenshaw and 3 more12 hr
Apr 7, 3:22 AM CDTTornado WarningMOBClarke, Washington38 min
Apr 7, 3:50 AM CDTTornado WarningMOBMonroe, Wilcox40 min
Apr 7, 4:41 AM CDTTornado WarningMOBBaldwin, Clarke, Mobile, Monroe49 min
Apr 7, 4:58 AM CDTSevere Thunderstorm WarningMOBButler62 min
Apr 7, 5:23 AM CDTSevere Thunderstorm WarningMOBMobile52 min
Apr 7, 5:41 AM CDTAreal Flood AdvisoryMOBBaldwin, Clarke, Mobile, Washington2 hr
Apr 7, 6:08 AM CDTFlash Flood WarningMOBBaldwin, Clarke, Mobile, Washington112 min
Apr 7, 6:10 AM CDTTornado WarningMOBButler, Conecuh, Monroe50 min
Apr 7, 6:16 AM CDTSevere Thunderstorm WarningMOBBaldwin, Conecuh, Escambia, Monroe44 min
Apr 7, 6:23 AM CDTSpecial Marine WarningMOB97 min
Apr 7, 6:30 AM CDTFlash Flood WarningMOBBaldwin, Clarke, Conecuh, Escambia, Monroe2 hr
Apr 7, 6:43 AM CDTSevere Thunderstorm WarningMOBButler, Conecuh, Covington, Crenshaw, Escambia, Monroe47 min
Apr 7, 6:49 AM CDTSevere Thunderstorm WarningMOBBaldwin, Escambia56 min
Apr 7, 7:36 AM CDTSpecial Marine WarningMOB84 min
Apr 7, 8:04 AM CDTAreal Flood AdvisoryMOBBaldwin, Escambia, Mobile116 min
Apr 7, 8:20 AM CDTSevere Thunderstorm WarningMOBCovington, Escambia55 min
Apr 7, 8:28 AM CDTAreal Flood AdvisoryMOBBaldwin, Covington, Crenshaw, Escambia2 hr
Apr 7, 8:35 AM CDTSpecial Marine WarningMOB55 min
Apr 7, 8:40 AM CDTSevere Thunderstorm WarningMOBCovington65 min
Apr 7, 8:56 AM CDTSpecial Marine WarningMOB94 min
Apr 7, 9:29 AM CDTSpecial Marine WarningMOB91 min
Apr 7, 10:45 AM CDTSpecial Marine WarningMOB60 min
Apr 7, 12:26 PM CDTRiver Flood WarningMOBEscambia6 days

Nearby

Flash Flood Warnings in Alabama, 2014Flash Flood Warnings in Mississippi, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.