Alert archive / Mississippi / Flash Flood Warnings in 2016

Flash Flood Warning 21, NWS Mobile, AL

April 14, 2016Perry County, Mississippi

NWS Mobile, AL issued this flash flood warning at Apr 14, 2016, 7:27 PM CDT for Perry County, Mississippi. 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
Apr 14, 2016, 7:27 PM CDT (00:27 UTC)
Expired
Apr 14, 2016, 10:30 PM CDT
In force
3 hr
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Flood severity
None

County Perry County, MS

The radar

The Mobile radar (KMOB), 113 km from the middle of the area, began a volume at 00:28 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

TimeReportWhereRemark
Apr 14, 9:20 PM CDTFLASH FLOOD1 Wsw Runnelstown, MSWATER FLOWING OVER CORINTH CHURCH RD SOUTH OF HWY 42. REPORT VIA SOCIAL MEDIA.
Apr 14, 9:20 PM CDTFLASH FLOODRunnelstown, MSSTREET FLOODING IN RUNNELSTOWN IN THE LEE ST, BROWN LN, AND FARRIS DR AREAS. REPORTS VIA SOCIAL MEDIA.

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, 0.5 hours before the alert went out and 139 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-pSkew-T log-p diagram, Slidell Radar S, LA at 00:00Z on 2016-04-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 147 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 00:00Z on 2016-04-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
147 J/kg
Mixed-layer CIN
-73 J/kg
Mixed-layer LCL
669 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
65 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted.

699 
WGUS54 KMOB 150027
FFWMOB
MSC111-150330-
/O.NEW.KMOB.FF.W.0021.160415T0027Z-160415T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
727 PM CDT THU APR 14 2016

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHWESTERN PERRY COUNTY IN SOUTHEASTERN MISSISSIPPI...

* UNTIL 1030 PM CDT

* AT 725 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  VERY HEAVY RAIN ACROSS NORTHWESTERN PERRY COUNTY. RAINFALL AMOUNTS
  OF 3 TO 4 INCHES HAVE FALLEN IN THE PAST HOUR OVER THE FAR
  NORTHWESTERN PART OF THE COUNTY JUST WEST AND NORTHWEST OF
  RUNNELSTOWN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* FLASH FLOODING WILL REMAIN OVER MAINLY RURAL AREAS OF NORTHWESTERN
  PERRY COUNTY NEAR THE COMMUNITY OF RUNNELSTOWN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLASH FLOODING OF
SMALL CREEKS AND STREAMS...COUNTRY ROADS...FARMLAND...AND OTHER LOW
LYING SPOTS.

&&

LAT...LON 3143 8915 3143 8900 3135 8902 3129 8915

$$
2 follow-up statements
932 
WGUS74 KMOB 150110
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
810 PM CDT THU APR 14 2016

MSC111-150330-
/O.CON.KMOB.FF.W.0021.000000T0000Z-160415T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PERRY MS-
810 PM CDT THU APR 14 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT FOR
NORTHWESTERN PERRY COUNTY...

AT 804 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE SHOWERS AND THUNDERSTORMS PRODUCING MODERATE TO LOCALLY
HEAVY RAINFALL OVER FAR NORTHWESTERN PORTIONS OF PERRY COUNTY.
THOUGH SHOWERS AND STORMS HAVE WEAKENED OVER THE PAST 45 MINUTES...
DOPPLER RADAR ESTIMATES THAT 2 TO 4 INCHES OF RAIN QUICKLY FELL OVER
NORTHWESTERN PERRY COUNTY WITHIN A SHORT PERIOD OF TIME IN AND
AROUND THE RUNNELSTOWN COMMUNITY. EXCESSIVE RUNOFF FROM HEAVY
RAINFALL WILL LIKELY PRODUCE FLASH FLOODING OVER THE WARNED AREA.

LOCATIONS IMPACTED INCLUDE...RUNNELSTOWN...TALLAHALA...AND RURAL
PORTIONS OF NORTHWESTERN PERRY COUNTY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLASH FLOODING OF
SMALL CREEKS AND STREAMS...COUNTRY ROADS...FARMLAND...AND OTHER LOW
LYING SPOTS.

&&

LAT...LON 3143 8915 3143 8900 3135 8902 3129 8915

$$
457 
WGUS74 KMOB 150328
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1028 PM CDT THU APR 14 2016

MSC111-150333-
/O.EXP.KMOB.FF.W.0021.000000T0000Z-160415T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PERRY MS-
1028 PM CDT THU APR 14 2016

...THE FLASH FLOOD WARNING FOR NORTHWESTERN PERRY COUNTY WILL EXPIRE
AT 1030 PM CDT...

AT 920 PM CDT...PERRY COUNTY EMERGENCY MANAGEMENT REPORTED FLOODING
IN THE RUNNELSTOWN COMMUNITY...AND ALSO WATER CROSSING CORINTH
CHURCH ROAD SOUTH OF HIGHWAY 42. 

AT 1025 PM CDT...DOPPLER RADAR INDICATED THAT RAIN HAD ENDED OVER
NORTHWESTERN PERRY COUNTY. FLASH FLOODING IS NO LONGER EXPECTED TO
POSE A THREAT. THUS...THE FLASH FLOOD WARNING WILL BE ALLOWED TO
EXPIRE. 

LAT...LON 3143 8915 3143 8900 3135 8902 3129 8915

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 14, 7:04 PM CDTAreal Flood AdvisoryMOBPerry3 hr
Apr 14, 11:39 PM CDTAreal Flood WarningMOBPerry9 hr

Nearby

Flash Flood Warnings in Mississippi, 2016Every 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.