Alert archive / Alabama / Flash Flood Warnings in 2014

Flash Flood Warning 12, NWS Mobile, AL

April 7, 20145 counties in Alabama

NWS Mobile, AL issued this flash flood warning at Apr 7, 2014, 6:30 AM CDT for 5 counties in Alabama. It was in force for 2 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: Apr 7, 2014, 6:30 AM CDT (11:30 UTC)
Expired: Apr 7, 2014, 8:30 AM CDT
In force: 2 hr
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Flood severity: None

Counties Baldwin County, AL, Clarke County, AL, Conecuh County, AL, Escambia County, AL, Monroe County, AL

The radar

The Mobile radar (KMOB), 122 km from the middle of the area, began a volume at 11:34 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 7, 7:00 AM CDT	FLASH FLOOD	Excel, AL	AL-136 FLOODED IN EXCEL
Apr 7, 7:00 AM CDT	FLASH FLOOD	N Monroeville, AL	AL-41 FLOODED NORTH OF MONROEVILLE. SEVERAL COUNTY ROADS FLOODED THROUGHOUT MONROE COUNTY.

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, 11.5 hours before the alert went out and 198 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 630 m above ground
0-6 km bulk shear: 70 kt
0-1 km storm-relative helicity: 135 m²/s²
0-3 km storm-relative helicity: 634 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

185 
WGUS54 KMOB 071130
FFWMOB
ALC003-025-035-053-099-071330-
/O.NEW.KMOB.FF.W.0012.140407T1130Z-140407T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
630 AM CDT MON APR 7 2014

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTH CENTRAL CONECUH COUNTY IN SOUTH CENTRAL ALABAMA...
  NORTHWESTERN ESCAMBIA COUNTY IN SOUTH CENTRAL ALABAMA...
  SOUTHERN MONROE COUNTY IN SOUTH CENTRAL ALABAMA...
  EXTREME NORTH CENTRAL BALDWIN COUNTY IN SOUTHWEST ALABAMA...
  SOUTHEASTERN CLARKE COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 830 AM CDT

* AT 628 AM CDT...VERY HEAVY RAINFALL WAS INDICATED OVER THE WARNED
  AREA AND RADAR ESTIMATES SHOW 2 TO 3 INCHES OF RAINFALL HAS     
  OCCURRED OVER THE PAST HOUR. ADDITIONAL CLUSTERS OF SHOWERS AND 
  THUNDERSTORMS WILL BE MOVING NORTHEAST OVER THE WARNED AREA...BRINGING 
  ADDITIONAL HEAVY RAINS OVER THE WARNED AREA. THIS WILL LIKELY CAUSE FLASH 
  FLOODING.

* LOCATIONS IMPACTED INCLUDE...
  PETERMAN...           URIAH...              MONROEVILLE...
  MEGARGEL...           FRISCO CITY...        EXCEL...

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!

&&

LAT...LON 3162 8697 3118 8760 3130 8782 3160 8738

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 6, 7:16 PM CDT	Severe Thunderstorm Warning	MOB	Butler, Crenshaw	74 min
Apr 6, 7:36 PM CDT	Severe Thunderstorm Warning	MOB	Butler, Crenshaw	24 min
Apr 6, 8:01 PM CDT	Severe Thunderstorm Warning	MOB	Crenshaw	14 min
Apr 6, 11:30 PM CDT	Areal Flood Warning	MOB	Butler, Choctaw, Clarke, Conecuh, Covington, Crenshaw and 3 more	12 hr
Apr 7, 3:22 AM CDT	Tornado Warning	MOB	Clarke, Washington	38 min
Apr 7, 3:50 AM CDT	Flash Flood Warning	MOB	Choctaw, Clarke, Conecuh, Monroe, Washington, Wilcox	4 hr
Apr 7, 3:50 AM CDT	Tornado Warning	MOB	Monroe, Wilcox	40 min
Apr 7, 4:41 AM CDT	Tornado Warning	MOB	Baldwin, Clarke, Mobile, Monroe	49 min
Apr 7, 4:58 AM CDT	Severe Thunderstorm Warning	MOB	Butler	62 min
Apr 7, 5:23 AM CDT	Severe Thunderstorm Warning	MOB	Mobile	52 min
Apr 7, 5:41 AM CDT	Areal Flood Advisory	MOB	Baldwin, Clarke, Mobile, Washington	2 hr
Apr 7, 6:08 AM CDT	Flash Flood Warning	MOB	Baldwin, Clarke, Mobile, Washington	112 min
Apr 7, 6:10 AM CDT	Tornado Warning	MOB	Butler, Conecuh, Monroe	50 min
Apr 7, 6:16 AM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Conecuh, Escambia, Monroe	44 min
Apr 7, 6:23 AM CDT	Special Marine Warning	MOB		97 min
Apr 7, 6:43 AM CDT	Severe Thunderstorm Warning	MOB	Butler, Conecuh, Covington, Crenshaw, Escambia, Monroe	47 min
Apr 7, 6:49 AM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Escambia	56 min
Apr 7, 7:36 AM CDT	Special Marine Warning	MOB		84 min
Apr 7, 8:04 AM CDT	Areal Flood Advisory	MOB	Baldwin, Escambia, Mobile	116 min
Apr 7, 8:20 AM CDT	Severe Thunderstorm Warning	MOB	Covington, Escambia	55 min
Apr 7, 8:28 AM CDT	Areal Flood Advisory	MOB	Baldwin, Covington, Crenshaw, Escambia	2 hr
Apr 7, 8:35 AM CDT	Special Marine Warning	MOB		55 min
Apr 7, 8:40 AM CDT	Severe Thunderstorm Warning	MOB	Covington	65 min
Apr 7, 8:56 AM CDT	Special Marine Warning	MOB		94 min
Apr 7, 9:29 AM CDT	Special Marine Warning	MOB		91 min
Apr 7, 10:45 AM CDT	Special Marine Warning	MOB		60 min
Apr 7, 12:26 PM CDT	River Flood Warning	MOB	Escambia	6 days

Nearby

Flash Flood Warnings in Alabama, 2014 Every flash flood warning in 2014

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.