Alert archive / Alabama / Flash Flood Warnings in 2011
Flash Flood Warning 7, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at Mar 9, 2011, 4:20 AM CST for Choctaw County, Alabama. It was in force for 6 hr. 4 reports 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
- Mar 9, 2011, 4:20 AM CST (10:20 UTC)
- Expired
- Mar 9, 2011, 10:15 AM CST
- In force
- 6 hr
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Flood severity
- None
County Choctaw County, AL
The radar
The Mobile radar (KMOB), 164 km from the middle of the area, began a volume at 10:23 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 9, 4:45 AM CST | FLASH FLOOD | 2 W Pennington, AL | WATER COVERING HWY 156 WEST OF PENNINGTON |
| Mar 9, 7:22 AM CST | FLASH FLOOD | Butler, AL | WIDESPREAD FLOODING. NUMEROUS ROADS ARE CLOSED TO WATER COVERING THE ROADWAY INCLUDING COUNTY ROADS 32, 51, AND 21.HWY 114 AND 156 ALSO CLOSED DUE TO WATER COVERING THE ROAD. |
| Mar 9, 7:30 AM CST | FLASH FLOOD | 2 E Melvin, AL | COUNTY ROAD 18 EAST OF MELVIN...ONE LANE IMPASSABLE DUE TO WATER LINE WASH OUT. |
| Mar 9, 7:30 AM CST | FLASH FLOOD | 4 W Pennington, AL | SECTION OF HWY 156 WEST OF PENNINGTOM WASHED OUT...ROAD NOT PASSABLE. |
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, 10.3 hours before the alert went out and 169 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1808 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 365 m²/s²
- 0-3 km storm-relative helicity
- 712 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
026
WGUS54 KMOB 091020
FFWMOB
ALC023-091615-
/O.NEW.KMOB.FF.W.0007.110309T1020Z-110309T1615Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
420 AM CST WED MAR 9 2011
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHERN CHOCTAW COUNTY IN SOUTHWEST ALABAMA...
THIS INCLUDES THE CITY OF BUTLER...
* UNTIL 1015 AM CST
* AT 413 AM CST...NATIONAL WEATHER SERVICE RADAR INDICATED ADDITIONAL
SHOWERS AND THUNDERSTORMS MOVING INTO CENTRAL AND NORTHERN CHOCTAW
COUNTY. VERY HEAVY WILL OCCUR OVER THE COUNTY FOR AN EXTENDED
PERIOD OF TIME...WITH RAINFALL RATES OF 1 TO 2 INCHES HOUR
EXPECTED. THIS ADDITIONAL RAINFALL ON TOP OF THE 2 TO 4
INCHES THAT HAS ALREADY OCCURRED EARLIER THIS MORNING WILL
INCREASE THE LIKELIHOOD OF FLASH FLOODING.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
PENNINGTON...MT STERLING...LISMAN AND DEAS
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.
REPORT FLASH FLOODING TO YOUR NATIONAL WEATHER SERVICE IN MOBILE AT
AREA CODE 2 5 1...AND THEN 6 3 3 6 4 4 3. OR...YOU MAY CONTACT YOUR
NEAREST LAW ENFORCEMENT AGENCY OR COUNTY EMERGENCY MANAGEMENT...AND
THEY WILL RELAY YOUR REPORT.
LAT...LON 3230 8794 3230 8798 3228 8801 3216 8800
3214 8804 3209 8804 3206 8811 3201 8811
3202 8808 3201 8807 3196 8808 3191 8847
3227 8844 3231 8843 3232 8794
$$
JFB2 follow-up statements
108
WGUS74 KMOB 091338
FFSMOB
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
738 AM CST WED MAR 9 2011
ALC023-091615-
/O.CON.KMOB.FF.W.0007.000000T0000Z-110309T1615Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHOCTAW AL-
738 AM CST WED MAR 9 2011
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1015 AM CST FOR
NORTHERN CHOCTAW COUNTY...
AT 730 AM CST...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED WIDESPREAD
ACROSS CHOCTAW COUNTY RESULTING IN THE CLOSURE OF SEVERAL ROADS
ACROSS THE COUNTY. SOME OF THE ROADS CLOSED INCLUDE COUNTY ROADS 51
AND 21...AS WELL AS HIGHWAY 114 AND 156. IN ADDITION...A BRIDGE ON
COUNTY ROAD 32 HAS COLLAPSED DUE TO HIGH WATER. LIGHT TO MODERATE
RAIN CONTINUES TO FALL ACROSS THE AREA AND WATER LEVELS WILL LIKELY
CONTINUE TO RISE OVER THE NEXT FEW HOURS. THIS CREATE VERY DANGEROUS
DRIVING CONDITIONS ACROSS CHOCTAW COUNTY.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PENNINGTON...
LISMAN AND DEAS
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.
REPORT FLASH FLOODING TO YOUR NATIONAL WEATHER SERVICE IN MOBILE AT
AREA CODE 2 5 1...AND THEN 6 3 3 6 4 4 3. OR...YOU MAY CONTACT YOUR
NEAREST LAW ENFORCEMENT AGENCY OR COUNTY EMERGENCY MANAGEMENT...AND
THEY WILL RELAY YOUR REPORT.
&&
LAT...LON 3230 8794 3230 8798 3228 8801 3216 8800
3214 8804 3209 8804 3206 8811 3201 8811
3202 8808 3201 8807 3196 8808 3191 8847
3227 8844 3231 8843 3232 8794
$$
JFB616
WGUS74 KMOB 091610
FFSMOB
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1010 AM CST WED MAR 9 2011
ALC023-091615-
/O.CON.KMOB.FF.W.0007.000000T0000Z-110309T1615Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHOCTAW AL-
1010 AM CST WED MAR 9 2011
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1015 AM CST FOR
NORTHERN CHOCTAW COUNTY...
AT 1008 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR RAINFALL
ESTIMATES INDICATE THAT AS MUCH AS 9 TO 10 INCHES OF RAIN HAS FALLEN
ACROSS NORTHERN CHOCTAW COUNTY. THE CURRENT FLASH FLOOD WARNING IN
EFFECT FOR THIS AREA WILL BE REPLACED WITH AN AREAL FLOOD WARNING AS
THE DURATION OF THE FLOOD WATERS WILL BE IN EXCESS OF 6 HOURS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.
A TORNADO WATCH REMAINS IN EFFECT UNTIL NOON CST WEDNESDAY FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA.
&&
LAT...LON 3230 8794 3230 8798 3228 8801 3216 8800
3214 8804 3209 8804 3206 8811 3201 8811
3202 8808 3201 8807 3196 8808 3191 8847
3227 8844 3231 8843 3232 8794
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 8, 7:11 PM CST | Severe Thunderstorm Warning | MOB | Mobile, Washington | 34 min |
| Mar 8, 8:23 PM CST | Severe Thunderstorm Warning | MOB | Washington | 37 min |
| Mar 8, 9:04 PM CST | Severe Thunderstorm Warning | MOB | Clarke, Washington | 41 min |
| Mar 8, 9:44 PM CST | Severe Thunderstorm Warning | MOB | Clarke, Washington, Wilcox | 46 min |
| Mar 9, 1:32 AM CST | Flash Flood Warning | MOB | Choctaw | 118 min |
| Mar 9, 4:22 AM CST | Severe Thunderstorm Warning | MOB | Choctaw | 38 min |
| Mar 9, 4:32 AM CST | Tornado Warning | MOB | Choctaw | 33 min |
| Mar 9, 5:07 AM CST | Flash Flood Warning | MOB | Choctaw | 6 hr |
| Mar 9, 5:40 AM CST | Tornado Warning | MOB | Choctaw, Clarke | 33 min |
| Mar 9, 5:51 AM CST | Flash Flood Warning | MOB | Clarke, Washington, Wilcox | 6 hr |
| Mar 9, 6:37 AM CST | Tornado Warning | MOB | Washington | 17 min |
| Mar 9, 7:08 AM CST | Severe Thunderstorm Warning | MOB | Baldwin, Mobile, Washington | 52 min |
| Mar 9, 7:26 AM CST | Flash Flood Warning | MOB | Baldwin, Clarke, Mobile, Washington | 6 hr |
| Mar 9, 7:33 AM CST | Flash Flood Warning | MOB | Monroe | 6 hr |
| Mar 9, 7:52 AM CST | Severe Thunderstorm Warning | MOB | Baldwin, Mobile | 83 min |
| Mar 9, 7:54 AM CST | Special Marine Warning | MOB | 81 min | |
| Mar 9, 8:01 AM CST | Tornado Warning | MOB | Baldwin, Mobile | 44 min |
| Mar 9, 8:14 AM CST | Severe Thunderstorm Warning | MOB | Conecuh, Covington, Escambia | 61 min |
| Mar 9, 8:27 AM CST | Tornado Warning | MOB | Baldwin, Mobile | 63 min |
| Mar 9, 8:35 AM CST | Tornado Warning | MOB | Conecuh, Covington, Escambia | 40 min |
| Mar 9, 8:41 AM CST | Flash Flood Warning | MOB | Baldwin, Mobile | 4 hr |
| Mar 9, 8:48 AM CST | Flash Flood Warning | MOB | Conecuh, Escambia | 5 hr |
| Mar 9, 8:50 AM CST | Severe Thunderstorm Warning | MOB | Butler, Conecuh, Covington, Crenshaw | 40 min |
| Mar 9, 9:02 AM CST | Severe Thunderstorm Warning | MOB | Baldwin, Escambia | 58 min |
| Mar 9, 9:10 AM CST | Severe Thunderstorm Warning | MOB | Butler, Conecuh, Covington, Crenshaw, Escambia | 65 min |
| Mar 9, 9:10 AM CST | Tornado Warning | MOB | Baldwin | 50 min |
| Mar 9, 9:16 AM CST | Tornado Warning | MOB | Baldwin | 44 min |
| Mar 9, 9:16 AM CST | Tornado Warning | MOB | Covington | 59 min |
| Mar 9, 9:19 AM CST | Special Marine Warning | MOB | 116 min | |
| Mar 9, 9:23 AM CST | Special Marine Warning | MOB | 97 min | |
| Mar 9, 9:25 AM CST | Flash Flood Warning | MOB | Baldwin | 6 hr |
| Mar 9, 9:26 AM CST | Tornado Warning | MOB | Baldwin, Escambia | 49 min |
| Mar 9, 9:26 AM CST | Tornado Warning | MOB | Covington, Crenshaw | 26 min |
| Mar 9, 9:36 AM CST | Flash Flood Warning | MOB | Conecuh, Covington, Escambia | 114 min |
| Mar 9, 9:40 AM CST | Tornado Warning | MOB | Baldwin | 50 min |
| Mar 9, 9:44 AM CST | Areal Flood Advisory | MOB | Butler, Conecuh, Covington, Crenshaw | 4 hr |
| Mar 9, 9:54 AM CST | Tornado Warning | MOB | Covington | 25 min |
| Mar 9, 10:09 AM CST | Severe Thunderstorm Warning | MOB | Covington | 66 min |
| Mar 9, 10:22 AM CST | Areal Flood Warning | MOB | Choctaw | 5 hr |
| Mar 9, 10:55 AM CST | Special Marine Warning | MOB | 80 min | |
| Mar 9, 11:00 AM CST | Areal Flood Warning | MOB | Choctaw | 5 hr |
| Mar 9, 11:14 AM CST | Tornado Warning | MOB | Baldwin | 61 min |
| Mar 9, 11:30 AM CST | River Flood Warning | MOB | Clarke, Monroe, Wilcox | 10 days |
| Mar 9, 11:54 AM CST | Areal Flood Advisory | MOB | Conecuh, Covington, Escambia | 111 min |
| Mar 9, 11:58 AM CST | Special Marine Warning | MOB | 2 hr | |
| Mar 9, 12:00 PM CST | Areal Flood Warning | MOB | Clarke, Washington, Wilcox | 4 hr |
| Mar 9, 2:02 PM CST | Special Marine Warning | MOB | 58 min |
Nearby
Flash Flood Warnings in Alabama, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.