Alert archive / Alabama / Flash Flood Warnings in 2013
Flash Flood Warning 16, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at May 1, 2013, 10:43 PM CDT for Mobile County, Alabama. It was in force for 4 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 1, 2013, 10:43 PM CDT (03:43 UTC)
- Expired
- May 2, 2013, 2:45 AM CDT
- In force
- 4 hr
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Flood severity
- None
County Mobile County, AL
The radar
The Mobile radar (KMOB), 47 km from the middle of the area, began a volume at 03:47 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
Slidell Radar S, LA (KSIL), launched 00:00Z, 3.7 hours before the alert went out and 149 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
- 183 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 622 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 78 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
045
WGUS54 KMOB 020343
FFWMOB
ALC097-020745-
/O.NEW.KMOB.FF.W.0016.130502T0343Z-130502T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1043 PM CDT WED MAY 1 2013
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
MOBILE COUNTY IN SOUTHWEST ALABAMA...
* UNTIL 245 AM CDT
* AT 1042 PM CDT...VERY HEAVY RAINFALL WAS INDICATED OVER EASTERN
AND SOUTHERN MOBILE COUNTY AND ADDITIONAL HEAVY RAINFALL IS EXPECTED
THROUGH EARLY MORNING. RADAR ESTIMATES SHOW AN ADDITIONAL 4 TO 6
INCHES OF ADDITIONAL RAINFALL IS POSSIBLE THROUGH 230 AM CDT AS
ADDITIONAL BANDS OF HEAVY RAIN MOVE NORTH OFF THE GULF OF MEXICO AND
ACROSS MUCH OF MOBILE COUNTY.
THIS ADDITIONAL RAINFALL WILL LIKELY RESULT IN ADDITIONAL FLASH
FLOODING IN WESTERN MOBILE COUNTY WHERE HEAVY RAINFALL AMOUNTS OF 10
TO 13 INCHES HAS ALREADY BEEN OBSERVED SINCE WEDENSDAY MORNING...AND
WILL CREATE AN INCREASED THREAT OF FLASH FLOODING IN OTHER AREAS OF
MOBILE COUNTY THROUGH 230 AM WHERE THE GROUND IS BECOMING
INCREASINGLY SATURATED FROM HEAVY RAINFALL.
* LOCATIONS IMPACTED INCLUDE...
REGIONAL AIRPORT IN WEST MOBILE... MIDTOWN MOBILE...
EASTERN DAUPHIN ISLAND... DOWNTOWN MOBILE...
CENTRAL DAUPHIN ISLAND... CODEN...
TILLMANS CORNER... THEODORE... SEMMES...
LAT...LON 3026 8813 3027 8813 3029 8813 3032 8823
3032 8821 3036 8820 3037 8825 3032 8826
3037 8826 3039 8840 3109 8842 3096 8796
3090 8796 3087 8799 3082 8796 3078 8802
3033 8813 3029 8813 3025 8807 3022 8831
$$1 follow-up statement
070
WGUS74 KMOB 020614
FFSMOB
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
114 AM CDT THU MAY 2 2013
ALC097-020745-
/O.CON.KMOB.FF.W.0016.000000T0000Z-130502T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOBILE AL-
114 AM CDT THU MAY 2 2013
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 245 AM CDT FOR
MOBILE COUNTY...
AT 114 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
DETECT SHOWERS AND THUNDERSTORMS ALONG A LINE FROM DAUPHIN ISLAND...
TO BAYOU LE BATRE AND THEODORE...TO DOWNTOWN MOBILE...MOVING
NORTHEAST AT 20 MPH. THE HEAVIEST RAINFALL WAS DETECTED ACROSS
DAUPHIN ISLAND AND LOCATIONS NEAR BAYOU LE BATRE...WHERE 3 TO 6
INCHES OF RAIN HAS BEEN ESTIMATED SINCE 11 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLASH FLOOD WARNING MEANS FLOODING IS IMMINENT OR OCCURRING. SEEK
HIGHER GROUND IMMEDIATELY. DO NOT DRIVE OR WALK INTO AREAS WHERE
WATER CROSSES A ROAD. TURN AROUND - DON'T DROWN!
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.
&&
LAT...LON 3026 8813 3027 8813 3029 8813 3032 8823
3032 8821 3036 8820 3037 8825 3032 8826
3037 8826 3039 8840 3109 8842 3096 8796
3090 8796 3087 8799 3082 8796 3078 8802
3033 8813 3029 8813 3025 8807 3022 8831
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 1, 8:13 PM CDT | Flash Flood Warning | MOB | Mobile | 4 hr |
| May 1, 9:32 PM CDT | Special Marine Warning | MOB | 88 min | |
| May 1, 10:08 PM CDT | Areal Flood Advisory | MOB | Baldwin, Mobile | 112 min |
| May 1, 11:03 PM CDT | Special Marine Warning | MOB | 87 min | |
| May 2, 12:32 AM CDT | Special Marine Warning | MOB | 88 min | |
| May 2, 12:45 AM CDT | Areal Flood Advisory | MOB | Baldwin | 2 hr |
| May 2, 2:28 AM CDT | Areal Flood Warning | MOB | Mobile | 12 hr |
| May 2, 2:57 AM CDT | Flash Flood Warning | MOB | Baldwin | 3 hr |
| May 2, 3:08 AM CDT | Areal Flood Warning | MOB | Mobile | 12 hr |
| May 2, 5:02 AM CDT | Special Marine Warning | MOB | 88 min | |
| May 2, 5:04 AM CDT | Coastal Flood Statement | MOB | 8 hr | |
| May 2, 5:46 AM CDT | Flash Flood Warning | MOB | Baldwin | 6 hr |
| May 2, 9:02 AM CDT | River Flood Warning | MOB | Baldwin | 26 hr |
| May 2, 10:50 AM CDT | River Flood Warning | MOB | Choctaw, Clarke, Washington | 36 hr |
| May 2, 12:29 PM CDT | River Flood Warning | MOB | Mobile | 26 hr |
Nearby
Flash 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.