Alert archive / Alabama / Flash Flood Warnings in 2015
Flash Flood Warning 1, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at Apr 12, 2015, 8:39 PM CDT for Mobile County, Alabama. It was in force for 6 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
- Apr 12, 2015, 8:39 PM CDT (01:39 UTC)
- Expired
- Apr 13, 2015, 2:45 AM CDT
- In force
- 6 hr
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Flood severity
- None
County Mobile County, AL
The radar
The Mobile radar (KMOB), 21 km from the middle of the area, began a volume at 01:41 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 |
|---|---|---|---|
| Apr 12, 9:30 PM CDT | FLASH FLOOD | Grand Bay, AL | MULTIPLE ROADS CLOSED IN SOUTHERN COUNTY. RAMSEY ROAD AND HIGHWAY 188...MCGEHEE AND AL188...POTTER TRACT AND CEMETERY...OLD PASCAGOULA AND SERENITY GARDENS...MCDONALD ROAD AND I10 AT WAFFLE HOUSE...THREE NOTCH AND MCFARLAND. REPORTED BY MOBILE CO SHERRIFS OFFI |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 1.7 hours before the alert went out and 135 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
- 662 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 534 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 183 m²/s²
- 0-3 km storm-relative helicity
- 208 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
056
WGUS54 KMOB 130139
FFWMOB
ALC097-130745-
/O.NEW.KMOB.FF.W.0001.150413T0139Z-150413T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
839 PM CDT SUN APR 12 2015
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHWESTERN MOBILE COUNTY IN SOUTHWESTERN ALABAMA...
* UNTIL 245 AM CDT MONDAY
* AT 838 PM CDT...VERY HEAVY RAINFALL WAS INDICATED OVER THE WARNED
AREA AND RADAR ESTIMATES SHOW 3 TO 4 INCHES OF RAINFALL HAS
OCCURRED OVER THE PAST TWO HOURS. ADDITIONAL RAINFALL AMOUNTS OF
TWO TO FOUR INCHES ARE LIKELY OVER THE WARNED AREA. THIS WILL
LIKELY CAUSE FLASH FLOODING IN THE WARNED AREA.
* LOCATIONS IMPACTED INCLUDE...
MOBILE... PRICHARD... SARALAND...
CHICKASAW... BAYOU LA BATRE... MIDTOWN MOBILE...
THEODORE... REGIONAL AIRPORT IN ...
GRAND BAY...
TILLMANS CORNER... I65 AND I165... I65 AND US 45...
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 3082 8839 3084 8801 3039 8822 3038 8831
3040 8834 3039 8835 3040 8835 3040 8836
3039 8837 3040 8837 3038 8839
$$1 follow-up statement
047
WGUS74 KMOB 130506
FFSMOB
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1206 AM CDT MON APR 13 2015
ALC097-130745-
/O.CON.KMOB.FF.W.0001.000000T0000Z-150413T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOBILE AL-
1206 AM CDT MON APR 13 2015
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 245 AM CDT MONDAY
FOR SOUTHWESTERN MOBILE COUNTY...
AT 1204 AM CDT...LOCAL LAW ENFORCEMENT REPORTED HEAVY RAIN IN THE
GRAND BAY AREA. RADAR HAS INDICATED THAT UP TO 6 INCHES OF RAIN HAVE
FALLEN...CONFIRMED BY OBSERVER REPORTS STRETCHING SOUTH FROM WEST
MOBILE TO IRVINGTON. FLASH FLOODING IS EXPECTED TO CONTINUE INTO THE
OVERNIGHT HOURS.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
MOBILE...PRICHARD...SARALAND...CHICKASAW...BAYOU LA BATRE...MIDTOWN
MOBILE...THEODORE...REGIONAL AIRPORT IN WEST MOBILE...GRAND BAY...
TILLMANS CORNER...I65 AND I165 AND I65 AND US 45.
ADDITIONAL RAINFALL AMOUNTS OF TWO TO THREE INCHES ARE POSSIBLE IN
THE WARNED AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.
&&
LAT...LON 3082 8839 3084 8801 3039 8822 3038 8831
3040 8834 3039 8835 3040 8835 3040 8836
3039 8837 3040 8837 3038 8839
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 12, 8:21 PM CDT | Areal Flood Advisory | MOB | Mobile | 3 hr |
| Apr 12, 10:46 PM CDT | Special Marine Warning | MOB | 89 min | |
| Apr 13, 1:47 AM CDT | Flash Flood Watch | MOB | 17 hr | |
| Apr 13, 2:51 AM CDT | Flash Flood Warning | MOB | Baldwin | 6 hr |
| Apr 13, 5:27 AM CDT | Areal Flood Warning | MOB | Mobile | 6 hr |
| Apr 13, 12:04 PM CDT | Special Marine Warning | MOB | 86 min | |
| Apr 13, 1:20 PM CDT | Areal Flood Warning | MOB | Mobile | 6 hr |
| Apr 13, 3:25 PM CDT | Special Marine Warning | MOB | 95 min |
Nearby
Flash Flood Warnings in Alabama, 2015Every flash flood warning in 2015
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.