Alert archive / Alabama / Flash Flood Warnings in 2014

Flash Flood Warning 8, NWS Mobile, AL

April 6, 2014Choctaw County, Alabama

NWS Mobile, AL issued this flash flood warning at Apr 6, 2014, 5:27 PM CDT for Choctaw County, Alabama. It was in force for 6 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: Apr 6, 2014, 5:27 PM CDT (22:27 UTC)
Expired: Apr 6, 2014, 11:30 PM CDT
In force: 6 hr
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Flood severity: None

County Choctaw County, AL

The radar

The Mobile radar (KMOB), 142 km from the middle of the area, began a volume at 22:28 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 6, 6:00 PM CDT	FLASH FLOOD	Butler, AL	CHOCTAW COUNTY EMERGENCY MANAGEMENT REPORTS FLASH FLOODING ON RIDERWOOD DRIVE AND ALONG HWY 10 WEST IN BULTER AL.
Apr 6, 6:00 PM CDT	FLASH FLOOD	Butler, AL	CHOCTAW COUNTY EMERGENCY MANAGEMENT REPORTS FLASH FLOODING ON RIDERWOOD DRIVE AND ALONG HWY 10 WEST IN BUTLER AL.
Apr 6, 6:30 PM CDT	FLASH FLOOD	3 W Deas, AL	CHOCTAW COUNTY EMA REPORTS THAT HIGHWAY 156 IN NORTHERN CHOCTAW COUNTY WAS CLOSED DUE TO FLASH FLOODING.

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

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 10.5 hours before the alert went out and 187 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: 771 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: -120 m²/s²
0-3 km storm-relative helicity: 127 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

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

393 
WGUS54 KMOB 062227
FFWMOB
ALC023-070430-
/O.NEW.KMOB.FF.W.0008.140406T2227Z-140407T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
527 PM CDT SUN APR 6 2014

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CHOCTAW COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 1130 PM CDT

* AT 523 PM CDT...EMERGENCY MANAGEMENT REPORTED VERY HEAVY RAINFALL
  OVER THE WARNED AREA AND RADAR ESTIMATES SHOW 2 TO 3 INCHES OF
  RAINFALL HAS OCCURRED OVER THE PAST HOUR. THIS WILL LIKELY CAUSE
  FLASH FLOODING IN THE WARNED AREA.

* LOCATIONS IMPACTED INCLUDE...
  TOXEY...              SILAS...              PENNINGTON...
  NEEDHAM...            LISMAN...             GILBERTOWN...
  BUTLER...

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.

IF YOU ARE IN DANGER FROM THE FLOOD WATERS AND NEED RESCUE ASSISTANCE
CALL 911. TO REPORT FLOODING TO THE NATIONAL WEATHER SERVICE CALL
(800) 284-9059.

&&

LAT...LON 3208 8804 3205 8811 3201 8811 3199 8806
      3195 8808 3196 8810 3195 8812 3192 8809
      3193 8807 3192 8807 3190 8813 3182 8818
      3175 8815 3176 8811 3171 8812 3170 8846
      3192 8847 3230 8843 3231 8799

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 5, 10:54 PM CDT	Small Craft Advisory	MOB		39 hr
Apr 6, 5:45 AM CDT	Areal Flood Advisory	MOB	Choctaw, Clarke, Monroe, Washington, Wilcox	3 hr
Apr 6, 6:34 AM CDT	Rip Current Statement	MOB		60 hr
Apr 6, 9:43 AM CDT	Marine Dense Fog Advisory	MOB		3 hr
Apr 6, 3:03 PM CDT	River Flood Warning	MOB	Dallas, Monroe, Wilcox	9 days
Apr 6, 3:03 PM CDT	River Flood Warning	MOB	Clarke, Monroe, Wilcox	13 days
Apr 6, 3:03 PM CDT	River Flood Warning	MOB	Escambia	4 days
Apr 6, 6:13 PM CDT	Flash Flood Warning	MOB	Butler, Clarke, Conecuh, Covington, Crenshaw, Monroe and 1 more	6 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.