Alert archive / Mississippi / Flash Flood Warnings in 2013

Flash Flood Warning 7, NWS Mobile, AL

February 25, 2013George County, Mississippi; Mobile County, Alabama

NWS Mobile, AL issued this flash flood warning at Feb 25, 2013, 7:48 PM CST for George County, Mississippi; Mobile County, Alabama. It was in force for 6 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
Feb 25, 2013, 7:48 PM CST (01:48 UTC)
Expired
Feb 26, 2013, 1:45 AM CST
In force
6 hr
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Flood severity
None

Counties Mobile County, AL, George County, MS

The radar

The Mobile radar (KMOB), 28 km from the middle of the area, began a volume at 01:50 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
Feb 25, 8:16 PM CSTFLOOD2 E Mobile Airport, ALMINOR STREET FLOODING NEAR INTESECTION OF AIRPORT BLVD. AND FOREMAN RD.

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 00:00Z, 1.8 hours before the alert went out and 137 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 2013-02-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 313 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 2013-02-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 396 square meters per square second.1939587897Sfc1 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
313 J/kg
Mixed-layer CIN
-66 J/kg
Mixed-layer LCL
450 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
396 m²/s²
0-3 km storm-relative helicity
406 m²/s²
Significant tornado parameter
0.0
Supercell composite
6.0

Open this sounding in Storm Lab

The text

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

913 
WGUS54 KMOB 260148
FFWMOB
ALC097-MSC039-260745-
/O.NEW.KMOB.FF.W.0007.130226T0148Z-130226T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
748 PM CST MON FEB 25 2013

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN GEORGE COUNTY IN SOUTHEAST MISSISSIPPI...
  WEST CENTRAL MOBILE COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 145 AM CST

* AT 740 PM CST...VERY HEAVY RAINFALL WAS INDICATED OVER THE WARNED
  AREA AND RADAR ESTIMATES SHOW 2 TO 3 INCHES OF RAINFALL HAS
  OCCURRED OVER THE PAST HOUR. AN ADDITIONAL TWO TO THREE INCHES MAY
  FALL THROUGH 10 PM CST. THIS WILL LIKELY CAUSE FLASH FLOODING IN
  THE WARNED AREA.

* LOCATIONS IMPACTED INCLUDE...
  REGIONAL AIRPORT IN WEST MOBILE...          SEMMES...
  LUCEDALE...

LAT...LON 3073 8842 3074 8877 3087 8870 3095 8859
      3100 8848 3100 8843 3102 8842 3104 8840
      3094 8821 3059 8819 3057 8841

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 25, 6:54 PM CSTAreal Flood WarningMOBGeorge, Greene, Perry, Stone6 hr
Feb 25, 6:19 PM CSTSpecial Marine WarningMOB86 min
Feb 25, 9:48 PM CSTFlash Flood WarningMOBBaldwin, Clarke, Mobile, Washington6 hr
Feb 25, 10:35 PM CSTFlash Flood WarningMOBClarke, Monroe6 hr
Feb 25, 11:29 PM CSTSpecial Marine WarningMOB91 min
Feb 26, 5:36 AM CSTSmall Craft AdvisoryMOB24 hr
Feb 26, 12:23 PM CSTRiver Flood WarningMOBMobile8 hr
Feb 26, 5:49 PM CSTRiver Flood WarningMOBBaldwin9 hr

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.