Alert archive / Louisiana / Special Weather Statements in 2016

Special Weather Statement, NWS New Orleans, LA

January 9, 2016Pointe Coupee Parish, West Feliciana Parish, Louisiana

NWS New Orleans, LA issued this special weather statement at Jan 9, 2016, 12:43 AM CST for Pointe Coupee Parish, West Feliciana Parish, Louisiana. It was in force for 32 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
Jan 9, 2016, 12:43 AM CST (06:43 UTC)
Expired
Jan 9, 2016, 1:15 AM CST
In force
32 min
Issued by
NWS New Orleans, LA

Counties Pointe Coupee Parish, LA, West Feliciana Parish, LA

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 6.7 hours before the alert went out and 173 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, Lake Charles Mun, LA at 00:00Z on 2016-01-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1021 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lake Charles Mun, LA at 00:00Z on 2016-01-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 201 square meters per square second.1939587897117136156175Sfc1 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
1021 J/kg
Mixed-layer CIN
-58 J/kg
Mixed-layer LCL
665 m above ground
0-6 km bulk shear
71 kt
0-1 km storm-relative helicity
201 m²/s²
0-3 km storm-relative helicity
240 m²/s²
Significant tornado parameter
1.1
Supercell composite
7.8

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS New Orleans, LA wrote its last area forecast discussion before this special weather statement went out at Jan 8, 11:36 PM CST, 1 hour 7 minutes earlier.

Area forecast discussion, Jan 8, 11:36 PM CST, 1 hour 7 minutes before
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Hazardous weather outlook, Jan 8, 4:35 PM CST, 8 hours 8 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NEW ORLEANS LA
435 PM CST FRI JAN 8 2016

GMZ530-532-534-536-538-550-552-555-557-570-572-575-577-LAZ034>037-
039-040-046>050-056>072-MSZ068>071-077-080>082-091400-
LAKE PONTCHARTRAIN AND LAKE MAUREPAS-MISSISSIPPI SOUND-
LAKE BORGNE-CHANDELEUR SOUND-BRETON SOUND-
COASTAL WATERS FROM PORT FOURCHON TO LOWER ATCHAFALAYA RIVER OUT
20 NM-
COASTAL WATERS FROM THE SOUTHWEST PASS OF THE MISSISSIPPI RIVER
TO PORT FOURCHON OUT 20 NM-
COASTAL WATERS FROM BOOTHVILLE LA TO THE SOUTHWEST PASS OF THE
MISSISSIPPI RIVER OUT 20 NM-
COASTAL WATERS FROM PASCAGOULA MS TO STAKE ISLAND LA OUT 20 NM-
COASTAL WATERS FROM PORT FOURCHON TO LOWER ATCHAFALAYA RIVER FROM
20 TO 60 NM-
COASTAL WATERS FROM THE SOUTHWEST PASS OF THE MISSISSIPPI RIVER
TO PORT FOURCHON FROM 20 TO 60 NM-
COASTAL WATERS FROM STAKE ISLAND LA TO THE SOUTHWEST PASS OF THE
MISSISSIPPI RIVER FROM 20 TO 60 NM-
COASTAL WATERS FROM PASCAGOULA MS TO STAKE ISLAND LA FROM 20 TO
60 NM-POINTE COUPEE-WEST FELICIANA-EAST FELICIANA-ST. HELENA-
WASHINGTON-ST. TAMMANY-IBERVILLE-WEST BATON ROUGE-
EAST BATON ROUGE-ASCENSION-LIVINGSTON-ASSUMPTION-ST. JAMES-
ST. JOHN THE BAPTIST-UPPER LAFOURCHE-ST. CHARLES-UPPER JEFFERSON-
ORLEANS-UPPER PLAQUEMINES-UPPER ST. BERNARD-UPPER TERREBONNE-
LOWER TERREBONNE-LOWER LAFOURCHE-LOWER JEFFERSON-
LOWER PLAQUEMINES-LOWER ST. BERNARD-NORTHERN TANGIPAHOA-
SOUTHERN TANGIPAHOA-WILKINSON-AMITE-PIKE-WALTHALL-PEARL RIVER-
HANCOCK-HARRISON-JACKSON-
435 PM CST FRI JAN 8 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST
LOUISIANA...SOUTH MISSISSIPPI AND THE ADJACENT COASTAL WATERS.

.DAY ONE...TONIGHT

AREAS OF DENSE FOG ARE EXPECTED TO DEVELOP THIS EVENING AND PERSIST
FOR MUCH OF THE NIGHT ACROSS AREAS OF SOUTHEAST LOUISIANA...COASTAL
MISSISSIPPI...AND THE ADJACENT COASTAL AREAS. A DENSE FOG ADVISORY
IS IN EFFECT UNTIL 3AM FOR AREAS GENERALLY ALONG AND SOUTH OF THE
INTERSTATE 10/12 CORRIDOR. THE DENSE FOG ADVISORY IS ALSO IN EFFECT
FOR THE NEAR COASTAL WATERS...SOUNDS...AND TIDAL LAKES. VISIBILITIES
ARE LIKELY TO DROP TO ONE QUARTER MILE OR LESS AT TIMES.

NUMEROUS SHOWERS AND ISOLATED TO SCATTERED THUNDERSTORMS ARE
EXPECTED MAINLY LATE TONIGHT AND EARLY SATURDAY MORNING AS A COLD
FRONT SWEEPS THROUGH THE AREA. ONE OR TWO STORMS COULD BECOME
STRONG TO POSSIBLY SEVERE. THE MAIN THREATS FROM ANY SEVERE
WEATHER WILL BE STRONG GUSTY WINDS AND HAIL...HOWEVER A BRIEF
ISOLATED TORNADO CANNOT BE RULED OUT.

FLOOD WARNINGS REMAIN IN EFFECT FOR THE MISSISSIPPI RIVER AND
PARTS OF THE LOWER ATCHAFALAYA RIVER. PLEASE REFER TO THE
LATEST RIVER FLOOD WARNINGS AND STATEMENTS FOR DETAILS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

STRONG WINDS AND ROUGH SEAS IN THE WAKE OF A COLD FRONT WILL LEAD
TO HAZARDOUS CONDITIONS FOR SMALL CRAFT SATURDAY NIGHT INTO
SUNDAY MORNING. A SMALL CRAFT ADVISORY WILL LIKELY BE NECESSARY.

COLDER WEATHER WILL LEAD TO A LIGHT TO POSSIBLY MODERATE FREEZE
SUNDAY AND MONDAY NIGHTS NORTH AND WEST OF LAKE PONTCHARTRAIN INTO
SOUTH MISSISSIPPI. A BRIEF LIGHT FREEZE COULD ALSO OCCUR IN SOME
AREAS SOUTH OF LAKE PONTCHARTRAIN MONDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

In the hours before

Special weather statement, Jan 9, 12:43 AM CST, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1243 AM CST SAT JAN 9 2016

LAZ034-035-090715-
WEST FELICIANA-POINTE COUPEE-
1243 AM CST SAT JAN 9 2016

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL WEST FELICIANA AND
CENTRAL POINTE COUPEE PARISHES...

AT 1242 AM CST...A STRONG THUNDERSTORM WAS NEAR MELVILLE...MOVING
NORTHEAST AT 55 MPH.

WINDS IN EXCESS OF 30 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
NEW ROADS...ST. FRANCISVILLE...FORDOCHE AND MORGANZA.

LAT...LON 3098 9142 3073 9129 3072 9129 3070 9132
      3067 9130 3055 9172 3060 9175 3066 9175
      3067 9173 3071 9173 3075 9176
TIME...MOT...LOC 0642Z 240DEG 49KT 3067 9169

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 9, 1:06 AM CSTSevere Thunderstorm WarningLIXIberville24 min
Jan 9, 1:29 AM CSTSevere Thunderstorm WarningLIXIberville, West Baton Rouge31 min
Jan 9, 4:41 AM CSTSpecial Weather StatementLIXSaint Charles49 min
Jan 9, 5:03 AM CSTSevere Thunderstorm WarningLIXLafourche, Terrebonne27 min
Jan 9, 5:39 AM CSTSpecial Marine WarningLIX66 min
Jan 9, 5:43 AM CSTSmall Craft AdvisoryLIX27 hr
Jan 9, 6:24 AM CSTSpecial Marine WarningLIX66 min
Jan 9, 6:28 AM CSTSpecial Marine WarningLIX92 min
Jan 9, 6:34 AM CSTSpecial Marine WarningLIX86 min
Jan 9, 7:33 AM CSTSpecial Marine WarningLIX57 min
Jan 9, 7:38 AM CSTSpecial Marine WarningLIX2 hr
Jan 9, 7:41 AM CSTSpecial Marine WarningLIX64 min
Jan 9, 8:36 AM CSTSpecial Marine WarningLIX39 min
Jan 9, 8:50 AM CSTSpecial Marine WarningLIX85 min

Nearby

Special Weather Statements in Louisiana, 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.