Alert archive / Mississippi / Flash Flood Warnings in 2016

Flash Flood Warning 21, NWS New Orleans, LA

April 28, 2016Hancock County, Harrison County, Pearl River County, Mississippi

NWS New Orleans, LA issued this flash flood warning at Apr 28, 2016, 8:17 AM CDT for Hancock County, Harrison County, Pearl River County, Mississippi. It was in force for 3 hr. 5 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 28, 2016, 8:17 AM CDT (13:17 UTC)
Expired
Apr 28, 2016, 11:15 AM CDT
In force
3 hr
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Emergency
Flash flood emergency
Flood severity
None

Counties Hancock County, MS, Harrison County, MS, Pearl River County, MS

What was reported inside it

TimeReportWhereRemark
Apr 28, 8:30 AM CDTHEAVY RAIN 3.231 W Mcneil, MS
Apr 28, 8:30 AM CDTHEAVY RAIN 9.48Lyman, MS
Apr 28, 8:35 AM CDTHEAVY RAIN 3.19Diamondhead, MS
Apr 28, 8:54 AM CDTFLASH FLOOD5 Wsw Gulfport, MSAVENUE OF THE OAKS AND BEAR CREEK DRIVE ON THE UNIVERSITY OF SOUTHERN MISSISSIPPI GULF PARK CAMPUS ARE FLOODED.
Apr 28, 10:06 AM CDTFLASH FLOOD3 S Lyman, MSPART OF LAMBRECHT ROAD WASHED AWAY NEAR ROBINSON ROAD IN GULFPORT.

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, 1.3 hours before the alert went out and 40 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 12:00Z on 2016-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2595 joules per kilogram.LCLEL10008507005003002001001 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 12:00Z on 2016-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 147 square meters per square second.193958Sfc1 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
2595 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
476 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
147 m²/s²
0-3 km storm-relative helicity
209 m²/s²
Significant tornado parameter
1.6
Supercell composite
8.5

Open this sounding in Storm Lab

The text

As transmitted.

287 
WGUS54 KLIX 281317
FFWLIX
MSC045-047-109-281615-
/O.NEW.KLIX.FF.W.0021.160428T1317Z-160428T1615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
817 AM CDT THU APR 28 2016

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN PEARL RIVER COUNTY IN SOUTHERN MISSISSIPPI...
  WESTERN HARRISON COUNTY IN SOUTHEASTERN MISSISSIPPI...
  HANCOCK COUNTY IN SOUTHERN MISSISSIPPI...

* UNTIL 1115 AM CDT

* AT 814 AM CDT...DOPPLER RADAR INDICATED HEAVY RAIN CONTINUING
  IMPACT SOUTHERN PEARL RIVER COUNTY...HANCOCK COUNTY AND HARRISON
  COUNTY. 4 TO 6 INCHES OF RAIN HAS ALREADY BEEN REPORTED IN SOME
  AREAS FROM THESE STORMS AND FLASH FLOODING IS ALREADY OCCURRING IN
  PARTS OF HARRISON COUNTY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  GULFPORT...LONG BEACH...PICAYUNE...BAY ST. LOUIS...WAVELAND...
  DIAMONDHEAD...LYMAN...KILN...MCNEIL...SHORELINE PARK AND SAUCIER.

ADDITIONAL RAINFALL AMOUNTS OF 2 TO 3 INCHES ARE POSSIBLE IN THE
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS
WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

&&

LAT...LON 3036 8907 3028 8928 3028 8932 3024 8939
      3020 8941 3019 8944 3048 8954 3045 8968
      3064 8982 3076 8934 3065 8934 3065 8924
      3068 8924 3068 8915

$$

95/DM
1 follow-up statement
954 
WGUS74 KLIX 281441
FFSLIX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
941 AM CDT THU APR 28 2016

MSC045-047-109-281449-
/O.CAN.KLIX.FF.W.0021.000000T0000Z-160428T1615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PEARL RIVER MS-HARRISON MS-HANCOCK MS-
941 AM CDT THU APR 28 2016

...THE FLASH FLOOD WARNING FOR SOUTHERN PEARL RIVER...WESTERN
HARRISON AND HANCOCK COUNTIES IS CANCELLED...

THIS WARNING HAS BEEN REPLACED BY A FLASH FLOOD EMERGENCY IN
SOUTHERN HARRISON COUNTY UNTIL 1115 PM CDT...AND A FLASH FLOOD
WARNNIG FOR ALL OF HANCOCK COUNTY UNTIL 1145 PM CDT.

LAT...LON 3036 8907 3028 8928 3028 8932 3024 8939
      3020 8941 3019 8944 3048 8954 3045 8968
      3064 8982 3076 8934 3065 8934 3065 8924
      3068 8924 3068 8915

$$

24/RR

The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 28, 3:48 AM CDTSpecial Weather StatementLIXPearl River27 min
Apr 28, 4:22 AM CDTSpecial Weather StatementLIXHancock23 min
Apr 28, 4:40 AM CDTSevere Thunderstorm WarningLIXHancock, Harrison50 min
Apr 28, 5:26 AM CDTSevere Thunderstorm WarningLIXHarrison49 min
Apr 28, 5:35 AM CDTTornado WarningLIXHarrison25 min
Apr 28, 5:55 AM CDTTornado WarningLIXHarrison35 min
Apr 28, 6:19 AM CDTFlash Flood Warning EmergencyLIXHancock, Harrison, Jackson3 hr
Apr 28, 6:31 AM CDTSevere Thunderstorm WarningLIXHarrison, Jackson29 min
Apr 28, 6:35 AM CDTSevere Thunderstorm WarningLIXHarrison25 min
Apr 28, 8:09 AM CDTRiver Flood WarningLIXHarrison68 hr
Apr 28, 9:08 AM CDTRiver Flood WarningLIXHarrison57 hr
Apr 28, 9:21 AM CDTFlash Flood Warning EmergencyLIXHarrison114 min
Apr 28, 9:39 AM CDTFlash Flood WatchLIX6 hr
Apr 28, 9:39 AM CDTFlash Flood WarningLIXHancock, Pearl River2 hr
Apr 28, 11:04 AM CDTRiver Flood WarningLIXHarrison28 hr
Apr 28, 11:16 AM CDTFlash Flood Warning EmergencyLIXHarrison3 hr
Apr 28, 11:17 AM CDTRiver Flood WarningLIXPearl River57 hr
Apr 28, 11:20 AM CDTRiver Flood WarningLIXPearl River14 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.