Alert archive / Alabama / Flash Flood Warnings in 2014

Flash Flood Warning 44, NWS Mobile, AL

October 13, 2014Clarke County, Monroe County, Alabama

NWS Mobile, AL issued this flash flood warning at Oct 13, 2014, 9:43 PM CDT for Clarke County, Monroe County, Alabama. It was in force for 6 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
Oct 13, 2014, 9:43 PM CDT (02:43 UTC)
Expired
Oct 14, 2014, 3:45 AM CDT
In force
6 hr
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Flood severity
None

Counties Clarke County, AL, Monroe County, AL

The radar

The Mobile radar (KMOB), 107 km from the middle of the area, began a volume at 02:42 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

Birmingham, AL (KBMX), launched 00:00Z, 2.7 hours before the alert went out and 203 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 2014-10-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 880 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, Birmingham, AL at 00:00Z on 2014-10-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 338 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
880 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
710 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
338 m²/s²
0-3 km storm-relative helicity
406 m²/s²
Significant tornado parameter
1.9
Supercell composite
13.0

Open this sounding in Storm Lab

The text

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

979 
WGUS54 KMOB 140243
FFWMOB
ALC025-099-140845-
/O.NEW.KMOB.FF.W.0044.141014T0243Z-141014T0845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
943 PM CDT MON OCT 13 2014

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN MONROE COUNTY IN SOUTH CENTRAL ALABAMA...
  EASTERN CLARKE COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 345 AM CDT TUESDAY

* AT 938 PM CDT...HEAVY RAINFALL WAS INDICATED OVER THE WARNED
  AREA AND RADAR ESTIMATES SHOW 2 TO 3 INCHES OF RAINFALL HAS
  OCCURRED OVER THE PAST HOUR. THIS WILL LIKELY CAUSE FLASH
  FLOODING IN THE WARNED AREA.

  AN ADDITIONAL 1 TO 2 INCHES OF RAIN WILL FALL OVER THIS AREA
  THROUGH MIDNIGHT.

* LOCATIONS IMPACTED INCLUDE...
  WHATLEY...            JACKSON...            GROVE HILL...
  FULTON...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3193 8767 3188 8767 3187 8762 3183 8762
      3183 8743 3180 8736 3138 8755 3127 8783
      3115 8788 3126 8797 3131 8796 3132 8791
      3136 8789 3139 8791 3138 8794 3140 8790
      3144 8794 3149 8791 3153 8795 3194 8770

$$
1 follow-up statement
974 
WGUS74 KMOB 140503
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1203 AM CDT TUE OCT 14 2014

ALC025-099-140513-
/O.CAN.KMOB.FF.W.0044.000000T0000Z-141014T0845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MONROE AL-CLARKE AL-
1203 AM CDT TUE OCT 14 2014

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR EASTERN CLARKE AND
WESTERN MONROE COUNTIES...

AT 1158 PM CDT...THE HEAVY RAINFALL THAT PROMPTED THE WARNING FOR
EASTERN CLARKE AND WESTERN MONROE COUNTIES HAS ENDED...THUS THE FLASH
FLOOD WARNING HAS BEEN CANCELLED. HOWEVER...PONDING OF WATER MAY
STILL BE ENCOUNTERED.

LAT...LON 3193 8767 3188 8767 3187 8762 3183 8762
      3183 8743 3180 8736 3138 8755 3127 8783
      3115 8788 3126 8797 3131 8796 3132 8791
      3136 8789 3139 8791 3138 8794 3140 8790
      3144 8794 3149 8791 3153 8795 3194 8770

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 13, 7:09 PM CDTSevere Thunderstorm WarningMOBMobile, Washington26 min
Oct 13, 7:11 PM CDTTornado WarningMOBMobile, Washington23 min
Oct 13, 7:18 PM CDTTornado WarningMOBWashington27 min
Oct 13, 7:57 PM CDTSevere Thunderstorm WarningMOBChoctaw33 min
Oct 13, 8:13 PM CDTSevere Thunderstorm WarningMOBChoctaw, Washington32 min
Oct 13, 9:24 PM CDTSpecial Marine WarningMOB96 min
Oct 13, 9:49 PM CDTAreal Flood AdvisoryMOBEscambia116 min
Oct 13, 9:53 PM CDTSpecial Marine WarningMOB97 min
Oct 13, 11:33 PM CDTSpecial Marine WarningMOB87 min
Oct 13, 11:55 PM CDTAreal Flood AdvisoryMOBConecuh, Covington, Escambia110 min
Oct 14, 12:39 AM CDTSpecial Marine WarningMOB96 min
Oct 14, 4:39 AM CDTSpecial Marine WarningMOB96 min

Nearby

Flash 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.