Alert archive / Alabama / Flash Flood Warnings in 2014

Flash Flood Warning 7, NWS Mobile, AL

March 28, 2014Baldwin County, Alabama

NWS Mobile, AL issued this flash flood warning at Mar 28, 2014, 10:09 AM CDT for Baldwin County, Alabama. It was in force for 3 hr. 3 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: Mar 28, 2014, 10:09 AM CDT (15:09 UTC)
Expired: Mar 28, 2014, 1:00 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), 60 km from the middle of the area, began a volume at 15:10 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
Mar 28, 10:10 AM CDT	FLOOD	4 E Point Clear, AL	FLOODING REPORTED WEST OF THE INTERSECTION OF CR 32 AND HWY 181.
Mar 28, 10:30 AM CDT	HEAVY RAIN 3.5	3 S Silverhill, AL	MOST OF THIS RAINFALL OCCURRED BETWEEN 9 AND 1030AM.
Mar 28, 10:40 AM CDT	FLASH FLOOD	5 N Gulf Shores, AL	WATER OVER COUNTY ROAD 6 NEAR THE GULF SHORES SPORTSPLEX.

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 12:00Z, 3.2 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: 258 J/kg
Mixed-layer CIN: -110 J/kg
Mixed-layer LCL: 678 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 544 m²/s²
0-3 km storm-relative helicity: 729 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 11.3

Open this sounding in Storm Lab

The text

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

571 
WGUS54 KMOB 281509
FFWMOB
ALC003-281800-
/O.NEW.KMOB.FF.W.0007.140328T1509Z-140328T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1009 AM CDT FRI MAR 28 2014

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN BALDWIN COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 100 PM CDT

* AT 1000 AM CDT...VERY HEAVY RAINFALL WAS INDICATED OVER THE WARNED 
AREA DURING THE PAST HOUR AND RADAR ESTIMATES 2.5 TO 4.0 INCHES OF 
RAIN HAS FALLEN OVER SOUTHWEST AND SOUTH CENTRAL BALDWIN COUNTY HAS 
OCCURRED OVER THE PAST HOUR. EMA REPORTS STREET FLOODING THROUGHOUT 
THE WARNED AREA.

ANOTHER INCH OF RAIN WILL FALL OVER THE NEXT HOUR. WATERS WILL BE 
SLOW TO RECEDE. 

* LOCATIONS IMPACTED INCLUDE...
  SUMMERDALE...         SILVERHILL...         ROBERTSDALE...
  POINT CLEAR...        MAGNOLIA SPRINGS...   LILLIAN...
  FOLEY...              FAIRHOPE...           ELBERTA...

LAT...LON 3042 8791 3049 8794 3054 8791 3056 8791
      3063 8739 3051 8745 3049 8743 3048 8744
      3044 8739 3039 8744 3029 8777

$$

1 follow-up statement

297 
WGUS74 KMOB 281543
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1043 AM CDT FRI MAR 28 2014

ALC003-281800-
/O.CON.KMOB.FF.W.0007.000000T0000Z-140328T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BALDWIN AL-
1043 AM CDT FRI MAR 28 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 100 PM CDT FOR
SOUTHERN BALDWIN COUNTY...

AT 1032 AM CDT...THE BALDWIN COUNTY SHERIFFS OFFICE RELAYED NUMEROUS
REPORTS OF FLOODING IN THE WARNED AREA. RADAR ESTIMATES INDICATE
THAT WIDESPREAD RAINFALL AMOUNTS OF 2 TO 4 INCHES...WITH ISOLATED TOTALS
OVER 5 INCHES HAVE OCCURRED OVER THE WARNED AREA. EXCESSIVE RUNOFF FROM
THE HEAVY RAINS WILL RESULT IN CONTINUED WIDESPREAD FLOODING AND FLASH
FLOODING OVER SOUTHERN BALDWIN COUNTY. 

LOCATIONS IMPACTED INCLUDE...
  SUMMERDALE...         SILVERHILL...         ROBERTSDALE...
  POINT CLEAR...        MAGNOLIA SPRINGS...   LILLIAN...
  FOLEY...              FAIRHOPE...           ELBERTA...

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!

NEVER TRY TO CROSS OR PLAY IN AN URBAN SPILLWAY OR FLOWING CREEK...
EVEN A SMALL ONE. URBAN FLASH FLOODING IS A MAJOR KILLER.

&&

LAT...LON 3042 8791 3049 8794 3054 8791 3056 8791
      3063 8739 3051 8745 3049 8743 3048 8744
      3044 8739 3039 8744 3029 8777

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 28, 6:23 AM CDT	Areal Flood Advisory	MOB	Choctaw, Washington	3 hr
Mar 28, 6:57 AM CDT	Flash Flood Warning	MOB	Choctaw, Clarke, Washington	2 hr
Mar 28, 7:27 AM CDT	Areal Flood Advisory	MOB	Mobile	63 min
Mar 28, 8:24 AM CDT	Special Marine Warning	MOB		66 min
Mar 28, 8:49 AM CDT	Areal Flood Advisory	MOB	Mobile	116 min
Mar 28, 9:00 AM CDT	Areal Flood Warning	MOB	Washington	3 hr
Mar 28, 9:15 AM CDT	Severe Thunderstorm Warning	MOB	Mobile	45 min
Mar 28, 9:27 AM CDT	Special Marine Warning	MOB		93 min
Mar 28, 9:30 AM CDT	Special Marine Warning	MOB		90 min
Mar 28, 9:34 AM CDT	Severe Thunderstorm Warning	MOB	Mobile	41 min
Mar 28, 9:41 AM CDT	Severe Thunderstorm Warning	MOB	Baldwin	64 min
Mar 28, 9:47 AM CDT	Areal Flood Advisory	MOB	Baldwin	118 min
Mar 28, 10:00 AM CDT	Areal Flood Advisory	MOB	Baldwin	2 hr
Mar 28, 10:31 AM CDT	Areal Flood Warning	MOB	Baldwin	3 hr
Mar 28, 10:54 AM CDT	Special Marine Warning	MOB		81 min
Mar 28, 12:39 PM CDT	Areal Flood Warning	MOB	Baldwin, Mobile	12 hr
Mar 28, 1:14 PM CDT	Flash Flood Watch	MOB	Choctaw, Clarke, Conecuh, Covington, Escambia, Monroe and 1 more	15 hr
Mar 28, 1:53 PM CDT	River Flood Warning	MOB	Baldwin	21 hr
Mar 28, 3:05 PM CDT	Small Craft Advisory	MOB		4 hr

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.