Alert archive / Alabama / Flash Flood Warnings in 2016

Flash Flood Warning 22, NWS Mobile, AL

May 2, 2016Baldwin County, Alabama

NWS Mobile, AL issued this flash flood warning at May 2, 2016, 6:35 PM CDT for Baldwin County, Alabama. It was in force for 3 hr. 2 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: May 2, 2016, 6:35 PM CDT (23:35 UTC)
Expired: May 2, 2016, 9:30 PM CDT
In force: 3 hr
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Flood severity: None

County Baldwin County, AL

The radar

The Mobile radar (KMOB), 32 km from the middle of the area, began a volume at 23:37 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 2, 7:15 PM CDT	FLASH FLOOD	Spanish Fort, AL	FLOODING IN TIMBER CREEK SUBDIVISION AND A ROOF COLLAPSED AT THE CATERPILLAR TRUCKING PLANT.
May 2, 8:00 PM CDT	FLASH FLOOD	Spanish Fort, AL	PICTURE SENT IN BY LOCAL MEDIA OF CAR STALLED IN FLOODED STREETS. TIME ESTIMATED.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 11.6 hours before the alert went out and 136 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 770 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 610 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 24 m²/s²
0-3 km storm-relative helicity: 48 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

728 
WGUS54 KMOB 022335
FFWMOB
ALC003-030230-
/O.NEW.KMOB.FF.W.0022.160502T2335Z-160503T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
635 PM CDT MON MAY 2 2016

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WEST CENTRAL BALDWIN COUNTY IN SOUTHWESTERN ALABAMA...

* UNTIL 930 PM CDT

* AT 634 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO THREE INCHES OF RAIN HAVE
  ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  SPANISH FORT AND MALBIS. 

LAT...LON 3071 8800 3073 8778 3064 8778 3063 8794

$$

1 follow-up statement

340 
WGUS74 KMOB 030149
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
849 PM CDT MON MAY 2 2016

ALC003-030157-
/O.CAN.KMOB.FF.W.0022.000000T0000Z-160503T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BALDWIN AL-
849 PM CDT MON MAY 2 2016

...THE FLASH FLOOD WARNING FOR WEST CENTRAL BALDWIN COUNTY IS
CANCELLED...

AT 845 PM CDT...LAW ENFORCEMENT REPORTS THAT THE FLOODING HAS
ENDED...THUS THE FLASH FLOOD WARNING HAS BEEN CANCELLED. ALTHOUGH
THE FLASH FLOOD WARNING HAS BEEN CANCELLED...SOME PONDING OF WATER
MAY LINGER IN THE AREA.

LAT...LON 3071 8800 3073 8778 3064 8778 3063 8794

$$

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 2, 1:37 PM CDT	Special Weather Statement	MOB	Mobile	68 min
May 2, 2:29 PM CDT	Special Weather Statement	MOB	Clarke, Monroe	76 min
May 2, 2:39 PM CDT	Special Weather Statement	MOB	Choctaw	51 min
May 2, 3:33 PM CDT	Special Weather Statement	MOB	Clarke	42 min
May 2, 3:55 PM CDT	Special Weather Statement	MOB	Monroe, Wilcox	80 min
May 2, 4:46 PM CDT	Special Weather Statement	MOB	Clarke	74 min
May 2, 4:59 PM CDT	Special Weather Statement	MOB	Baldwin	46 min
May 2, 5:34 PM CDT	Special Weather Statement	MOB	Baldwin	56 min
May 2, 5:38 PM CDT	Special Weather Statement	MOB	Mobile	52 min
May 2, 5:51 PM CDT	Areal Flood Advisory	MOB	Baldwin	114 min

Nearby

Flash Flood Warnings in Alabama, 2016 Every flash flood warning in 2016

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.