Alert archive / Alabama / Flash Flood Warnings in 2011
Flash Flood Warning 21, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at May 26, 2011, 2:44 PM CDT for Choctaw County, Washington County, Alabama; Wayne County, Mississippi. It was in force for 3 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
- May 26, 2011, 2:44 PM CDT (19:44 UTC)
- Expired
- May 26, 2011, 5:44 PM CDT
- In force
- 3 hr
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Flood severity
- None
Counties Choctaw County, AL, Washington County, AL, Wayne County, MS
The radar
The Mobile radar (KMOB), 121 km from the middle of the area, began a volume at 19:47 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 12:00Z, 7.7 hours before the alert went out and 158 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.
- Mixed-layer CAPE
- 1916 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 650 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 270 m²/s²
- 0-3 km storm-relative helicity
- 253 m²/s²
- Significant tornado parameter
- 2.1
- Supercell composite
- 14.2
The text
As transmitted, in the capitals the NWS used until 2016.
090
WGUS54 KMOB 261944
FFWMOB
ALC023-129-MSC153-262345-
/O.NEW.KMOB.FF.W.0021.110526T1944Z-110526T2345Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
244 PM CDT THU MAY 26 2011
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHERN WAYNE COUNTY IN SOUTHEAST MISSISSIPPI...
THIS INCLUDES THE CITY OF WAYNESBORO...
SOUTHWESTERN CHOCTAW COUNTY IN SOUTHWEST ALABAMA...
NORTHWESTERN WASHINGTON COUNTY IN SOUTHWEST ALABAMA...
* UNTIL 645 PM CDT
* AT 238 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
THUNDERSTORMS MOVING OUT OF EASTERN MISSISSIPPI INTO THE WARNED
AREA. THE WARNED HAS ALREADY RECEIVED BETWEEN 2 AND 4 INCHES OF
RAIN IN THE PAST TWO HOURS.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ROBINSON
JUNCTION...SILAS...GILBERTOWN AND MILLRY
ADDITIONAL RAINFALL AMOUNTS OF UP TO 3 INCHES ARE POSSIBLE THROUGH
430 PM OVER THE WARNED AREA.
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.
FLOODING IS OCCURRING OR IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE
YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME
KILLERS IN HEAVY RAINS. CAMPERS AND HIKERS SHOULD AVOID STREAMS OR
CREEKS.IF YOU ARE IN A LOW SPOT...MOVE TO HIGHER GROUND.
TO REPORT FLASH FLOODING TO YOUR NATIONAL WEATHER SERVICE...CALL TOLL
FREE AT 1 8 7 7 6 3 3 6 7 7 2.
LAT...LON 3185 8863 3189 8848 3188 8831 3173 8824
3159 8828 3156 8847 3157 8868 3165 8884
3183 8889
$$2 follow-up statements
020
WGUS74 KMOB 262056
FFSMOB
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
356 PM CDT THU MAY 26 2011
ALC023-129-MSC153-262345-
/O.CON.KMOB.FF.W.0021.000000T0000Z-110526T2345Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WASHINGTON AL-CHOCTAW AL-WAYNE MS-
356 PM CDT THU MAY 26 2011
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR
NORTHERN WAYNE...SOUTHWESTERN CHOCTAW AND NORTHWESTERN WASHINGTON
COUNTIES...
...CREEK LEVELS ARE STILL RAPIDLY RISING IN THE WARNED AREA...
AT 342 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
DECREASING TREND IN HEAVY RAINFALL OVER THE WARNED AREA DURING THE
PAST HOUR. ADDITIONAL SCATTERED THUNDERSTORMS ARE POSSIBLE THROUGH
THE WARNING TIME FRAME. RADAR NOW INDICATES THAT UP TO SEVEN
INCHES OF RAIN HAS FALLEN OVER OPTIONS OF SOUTHWEST CHOCTAW COUNTY
NOW NORTHEAST WAYNE COUNTY OF MISSISSIPPI. IN GENERAL...FIVE TO
SEVEN INCHES OF RAIN HAS FALLEN IN THIS AREA. THE HEAVIEST OF
RAINFALL WAS BETWEEN SILAS AND GRETNA AND ABOUT 5 MILES EITHER SIDE
OF THIS LINE.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SILAS...
GILBERTOWN...EMORY AND GRETNA.
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.
FLOODING IS OCCURRING OR IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE
YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME
KILLERS IN HEAVY RAINS. CAMPERS AND HIKERS SHOULD AVOID STREAMS OR
CREEKS.IF YOU ARE IN A LOW SPOT...MOVE TO HIGHER GROUND.
LAT...LON 3185 8863 3189 8848 3188 8831 3173 8824
3159 8828 3156 8847 3157 8868 3165 8884
3183 8889
$$032
WGUS74 KMOB 262244
FFSMOB
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
544 PM CDT THU MAY 26 2011
ALC023-129-MSC153-262250-
/O.CAN.KMOB.FF.W.0021.000000T0000Z-110526T2345Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WASHINGTON AL-CHOCTAW AL-WAYNE MS-
544 PM CDT THU MAY 26 2011
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHERN WAYNE...
SOUTHWESTERN CHOCTAW AND NORTHWESTERN WASHINGTON COUNTIES...
HEAVIER RAINS HAVE MOVED SOUTH AND EAST OF THE AREA AND THE THREAT
OF ADDITIONAL FLASH FLOODING HAS ENDED. SOME ADDITIONAL LIGHT RAIN
MAY OCCUR THIS EVENING IN ADVANCE OF THE COLD FRONT.
LAT...LON 3185 8863 3189 8848 3188 8831 3173 8824
3159 8828 3156 8847 3157 8868 3165 8884
3183 8889
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 26, 10:25 AM CDT | Severe Thunderstorm Warning | MOB | Mobile | 50 min |
| May 26, 12:14 PM CDT | Severe Thunderstorm Warning | MOB | Choctaw, Clarke | 33 min |
| May 26, 12:22 PM CDT | Severe Thunderstorm Warning | MOB | Clarke, Wilcox | 27 min |
| May 26, 12:43 PM CDT | Severe Thunderstorm Warning | MOB | Choctaw, Washington | 47 min |
| May 26, 12:45 PM CDT | Severe Thunderstorm Warning | MOB | Mobile | 45 min |
| May 26, 1:04 PM CDT | Severe Thunderstorm Warning | MOB | Butler | 41 min |
| May 26, 1:24 PM CDT | Severe Thunderstorm Warning | MOB | Baldwin, Mobile, Washington | 37 min |
| May 26, 1:27 PM CDT | Severe Thunderstorm Warning | MOB | Choctaw | 63 min |
| May 26, 1:29 PM CDT | Severe Thunderstorm Warning | MOB | Butler, Crenshaw | 46 min |
| May 26, 1:34 PM CDT | Severe Thunderstorm Warning | MOB | Covington, Crenshaw | 26 min |
| May 26, 2:43 PM CDT | Severe Thunderstorm Warning | MOB | Mobile | 62 min |
| May 26, 3:20 PM CDT | Tornado Warning | MOB | Mobile | 40 min |
| May 26, 3:31 PM CDT | Special Marine Warning | MOB | 59 min | |
| May 26, 3:39 PM CDT | Severe Thunderstorm Warning | MOB | Baldwin, Clarke, Mobile, Monroe, Washington | 20 min |
| May 26, 4:23 PM CDT | Severe Thunderstorm Warning | MOB | Mobile | 37 min |
| May 26, 1:47 PM CDT | Severe Thunderstorm Warning | MOB | Perry | 20 min |
| May 26, 6:05 PM CDT | Severe Thunderstorm Warning | MOB | George, Stone | 40 min |
Nearby
Flash Flood Warnings in Alabama, 2011Flash Flood Warnings in Mississippi, 2011Every flash flood warning in 2011
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.