Alert archive / Alabama / Flash Flood Warnings in 2009
Flash Flood Warning 33, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at May 7, 2009, 8:47 PM CDT for Choctaw County, Alabama. It was in force for 3 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
- May 7, 2009, 8:47 PM CDT (01:47 UTC)
- Expired
- May 8, 2009, 12:15 AM CDT
- In force
- 3 hr
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Flood severity
- None
County Choctaw County, AL
The radar
The Mobile radar (KMOB), 129 km from the middle of the area, began a volume at 01:49 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 |
|---|---|---|---|
| May 7, 10:00 PM CDT | FLASH FLOOD | Silas, AL | NUMEROUS ROADS AND SEVERAL HOMES FLOODED IN SOUTHERN CHOCTAW COUNTY |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 1.8 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.
- Mixed-layer CAPE
- 1769 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 1309 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.9
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS54 KMOB 080147
FFWMOB
ALC023-080345-
/O.NEW.KMOB.FF.W.0033.090508T0147Z-090508T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
847 PM CDT THU MAY 7 2009
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHERN CHOCTAW COUNTY IN SOUTHWEST ALABAMA...
* UNTIL 1045 PM CDT
* AT 844 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
FLASH FLOODING FROM THUNDERSTORMS OVER THE WARNED AREA. DOPPLER
RADAR INDICATED 3 TO 5 INCHES OF RAIN HAS FALLEN ACROSS THE WARNED
AREA. ADDITIONAL THUNDERSTORMS CONTINUE TO DEVELOP AND MOVE ACROSS
THE SAME AREAS. THIS COULD LEAD TO ADDITIONAL RAINFALL AMOUNTS OF
1 TO 3 INCHES.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WOMACK
HILL...WIMBLY...WATER VALLEY...TOXEY...SERVICE...PARAGON...LOU...
HODGEWOOD...GILBERTOWN...CHAPPELL HILL AND BARRYTOWN
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.
LAT...LON 3194 8811 3191 8811 3190 8813 3187 8813
3186 8816 3182 8818 3176 8815 3176 8811
3176 8810 3171 8809 3171 8846 3196 8844
$$1 follow-up statement
000
WGUS54 KMOB 080323
FFWMOB
ALC023-080515-
/O.EXT.KMOB.FF.W.0033.000000T0000Z-090508T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1023 PM CDT THU MAY 7 2009
THE NATIONAL WEATHER SERVICE IN MOBILE HAS EXTENDED THE
* FLASH FLOOD WARNING FOR...
SOUTHERN CHOCTAW COUNTY IN SOUTHWEST ALABAMA...
* UNTIL 1215 AM CDT
* AT 1013 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR ALONG WITH
EMERGENCY MANAGEMENT REPORTS CONTINUED TO INDICATE FLASH FLOODING
FROM THUNDERSTORMS ACROSS SOUTHERN CHOCTAW COUNTY. EMERGENCY
MANAGEMENT REPORTED 6 INCHES OF RAIN HAS FALLEN IN PORTIONS OF
SOUTHERN CHOCTAW COUNTY WHILE DOPPLER RADAR ESTIMATES AS MUCH AS 9
INCHES HAS FALLEN ACROSS PORTIONS OF THE WARNED AREA. NUMEROUS
ROADS HAVE BEEN CLOSED AND SEVERAL HOMES HAVE BEEN FLOODED.
AN ADDITIONAL 1 TO 2 INCHES IS POSSIBLE BEFORE THE
THUNDERSTORMS DISSIPATE.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WOMACK
HILL...WIMBLY...WATER VALLEY...TOXEY...PARAGON...LOU...HODGEWOOD...
GILBERTOWN...CHAPPELL HILL AND BARRYTOWN
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.
LAT...LON 3194 8811 3191 8811 3190 8813 3187 8813
3186 8816 3182 8818 3176 8815 3176 8811
3176 8810 3171 8809 3171 8846 3196 8844
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 7, 8:19 PM CDT | Areal Flood Advisory | MOB | Choctaw, Clarke, Washington, Wilcox | 56 min |
Nearby
Flash Flood Warnings in Alabama, 2009Every flash flood warning in 2009
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.