Alert archive / Louisiana / Special Weather Statements in 2016

Special Weather Statement, NWS New Orleans, LA

August 6, 2016Washington Parish, Louisiana; Pearl River County, Mississippi

NWS New Orleans, LA issued this special weather statement at Aug 6, 2016, 6:20 PM CDT for Washington Parish, Louisiana; Pearl River County, Mississippi. It was in force for 40 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 6, 2016, 6:20 PM CDT (23:20 UTC)
Expired
Aug 6, 2016, 7:00 PM CDT
In force
40 min
Issued by
NWS New Orleans, LA

Counties Washington Parish, LA, Pearl River County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.3 hours before the alert went out and 54 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 2016-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1270 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 12:00Z on 2016-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -8 square meters per square second.1939Sfc1 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
1270 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
977 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-8 m²/s²
0-3 km storm-relative helicity
9 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

626 
WWUS84 KLIX 062320
SPSLIX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
620 PM CDT SAT AUG 6 2016

LAZ039-MSZ077-070000-
WASHINGTON-PEARL RIVER-
620 PM CDT SAT AUG 6 2016

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHEASTERN WASHINGTON
PARISH IN SOUTHEASTERN LOUISIANA AND CENTRAL PEARL RIVER COUNTIES...

AT 619 PM CDT...RADAR INDICATED STRONG THUNDERSTORMS WERE LOCATED
ALONG A LINE EXTENDING FROM 7 MILES NORTHEAST OF ENON TO 8 MILES
NORTHEAST OF CROSSROADS. MOVEMENT WAS SOUTHEAST AT 15 MPH.

WINDS IN EXCESS OF 40 MPH ARE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
BOGALUSA...FRANKLINTON...POPLARVILLE...VARNADO...
CROSSROADS AND MCNEIL. 

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
CAUSE LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 10 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

LAT...LON 3076 8934 3071 8934 3063 8982 3064 8982
      3067 8985 3066 8996 3084 9015 3092 8966
TIME...MOT...LOC 2319Z 307DEG 12KT 3082 9001 3087 8968 

$$

TD

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 3:31 PM CDTSpecial Weather StatementLIXPlaquemines29 min
Aug 6, 5:13 PM CDTSpecial Weather StatementLIXSaint Charles47 min
Aug 6, 5:39 PM CDTSpecial Weather StatementLIXSaint John the Baptist51 min
Aug 6, 6:36 PM CDTSpecial Weather StatementLIXSaint Helena39 min
Aug 6, 6:42 PM CDTAreal Flood AdvisoryLIXSaint James, Saint John the Baptist2 hr
Aug 6, 6:54 PM CDTSpecial Marine WarningLIX36 min

Nearby

Special Weather Statements in Louisiana, 2016Special Weather Statements in Mississippi, 2016Every special weather statement 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; the sounding from the Mesonet's radiosonde archive.