Alert archive / Mississippi / Flash Flood Warnings in 2007

Flash Flood Warning 7, NWS Mobile, AL

October 22, 2007Choctaw County, Clarke County, Washington County, Alabama; 5 counties in Mississippi

NWS Mobile, AL issued this flash flood warning at Oct 22, 2007, 9:52 PM CDT for Choctaw County, Clarke County, Washington County, Alabama; 5 counties in Mississippi. 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 22, 2007, 9:52 PM CDT (02:52 UTC)
Expired
Oct 23, 2007, 3:45 AM CDT
In force
6 hr
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Flood severity
None

Counties Choctaw County, AL, Clarke County, AL, Washington County, AL, George County, MS, Greene County, MS, Perry County, MS, Stone County, MS, Wayne County, MS

The radar

The Mobile radar (KMOB), 98 km from the middle of the area, began a volume at 02:51 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

Jackson, MS (KJAN), launched 00:00Z, 2.9 hours before the alert went out and 187 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 2007-10-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 81 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 2007-10-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 122 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
81 J/kg
Mixed-layer CIN
-65 J/kg
Mixed-layer LCL
747 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
122 m²/s²
0-3 km storm-relative helicity
154 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KMOB 230302 CCA
FFWMOB
ALC023-025-129-MSC039-041-111-131-153-230845-
/O.NEW.KMOB.FF.W.0007.071023T0252Z-071023T0845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
952 PM CDT MON OCT 22 2007

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLOOD WARNING FOR...
  GEORGE COUNTY IN SOUTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITY OF LUCEDALE...
  GREENE COUNTY IN SOUTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITY OF LEAKESVILLE...
  PERRY COUNTY IN SOUTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITY OF NEW AUGUSTA...
  STONE COUNTY IN SOUTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITY OF WIGGINS...
  WAYNE COUNTY IN SOUTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITY OF WAYNESBORO...
  CHOCTAW COUNTY IN SOUTHWEST ALABAMA...
  THIS INCLUDES THE CITY OF BUTLER...
  CLARKE COUNTY IN SOUTHWEST ALABAMA...
  THIS INCLUDES THE CITY OF GROVE HILL...
  WASHINGTON COUNTY IN SOUTHWEST ALABAMA...
  THIS INCLUDES THE CITY OF CHATOM...

* UNTIL 345 AM CDT

* AT 950 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUES
  TO INDICATE MODERATE TO HEAVY RAIN FROM NUMEROUS SHOWERS AND
  SCATTERED THUNDERSTORMS THAT CONTINUE TO MOVE NORTHEAST ACROSS THE
  WARNED AREA. RADAR AND SATELLITE RAINFALL ESTIMATES INDICATE
  WIDESPREAD AREAS OF 2 TO 4 INCHES OF RAIN HAD ALREADY FALLEN 
  ACROSS PORTIONS OF INLAND SOUTHEAST MISSISSIPPI AND SOUTHWEST 
  ALABAMA THROUGH THE AFTERNOON AND EVENING HOURS.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  TALLAHATTA SPRINGS...CHILTON...THOMASVILLE...WINN...AGRICOLA...
  TOPTON...LEROY...JACKSON...MCINTOSH...MALCOLM...ALMA...AND
  BARLOW BEND.

EXPERTS AT THE HYDROMETEOROLOGICAL PREDICTION CENTER LOCATED IN CAMP 
SPRINGS MARYLAND...AND SHORT TERM MODEL DATA SUGGEST ADDITIONAL 
RAINFALL AMOUNTS OF 4 TO 6 INCHES ARE POSSIBLE IN THE WARNED AREA AS 
STORMS CONTINUE THROUGH THE OVERNIGHT HOURS.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

DO NOT UNDERESTIMATE THE POWER OF FLOOD WATERS. ONLY A FEW INCHES OF
RAPIDLY FLOWING WATER CAN QUICKLY CARRY AWAY YOUR VEHICLE.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
MOBILE.

LAT...LON 3231 8799 3199 8811 3199 8767 3183 8762
      3182 8751 3153 8761 3145 8756 3137 8775
      3117 8795 3114 8844 3074 8843 3068 8933
      3092 8933 3092 8913 3143 8914 3145 8892
      3182 8893 3190 8848 3231 8843
TIME...MOT...LOC 0252Z 247DEG 9KT 3206 8770 3188 8792
          3073 8877

$$
JP

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 22, 7:31 PM CDTTornado WarningMOBWashington29 min
Oct 22, 8:32 PM CDTTornado WarningMOBClarke, Washington43 min
Oct 22, 9:12 PM CDTTornado WarningMOBClarke, Wilcox33 min
Oct 22, 9:52 PM CDTFlash Flood WarningMOBChoctaw, Clarke, Washington6 hr
Oct 22, 10:26 PM CDTTornado WarningMOBClarke, Wilcox18 min
Oct 23, 12:04 AM CDTFlash Flood WarningMOBBaldwin, Mobile, Monroe, Wilcox6 hr
Oct 23, 1:36 AM CDTTornado WarningMOBButler39 min
Oct 23, 2:14 AM CDTTornado WarningMOBButler31 min
Oct 23, 6:16 AM CDTTornado WarningMOBBaldwin44 min

Nearby

Flash Flood Warnings in Mississippi, 2007Flash Flood Warnings in Alabama, 2007Every flash flood warning in 2007

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.