Alert archive / Louisiana / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 69, NWS New Orleans, LA

March 18, 2016Iberville Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at Mar 18, 2016, 7:42 PM CDT for Iberville Parish, Louisiana. It was in force for 33 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
Mar 18, 2016, 7:42 PM CDT (00:42 UTC)
Expired
Mar 18, 2016, 8:15 PM CDT
In force
33 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Hail
1.75 in
Wind
60.0 mph

County Iberville Parish, LA

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 0.7 hours before the alert went out and 162 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 2016-03-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 52 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, Slidell Radar S, LA at 00:00Z on 2016-03-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 214 square meters per square second.19395878Sfc1 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
52 J/kg
Mixed-layer CIN
-186 J/kg
Mixed-layer LCL
1015 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
214 m²/s²
0-3 km storm-relative helicity
260 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

As transmitted.

647 
WUUS54 KLIX 190042
SVRLIX
LAC047-190115-
/O.NEW.KLIX.SV.W.0069.160319T0042Z-160319T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
742 PM CDT FRI MAR 18 2016

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN IBERVILLE PARISH IN SOUTHEASTERN LOUISIANA...

* UNTIL 815 PM CDT

* AT 741 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 7 MILES WEST OF
  BAYOU SORREL...OR 13 MILES SOUTHWEST OF PLAQUEMINE...MOVING EAST AT
  25 MPH.

  HAZARD...GOLF BALL SIZE HAIL AND 60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. AT 708 PM CDT...GOLF BALL HAIL
  WAS REPORTED NEAR BREAUX BRIDGE WITH THIS STORM. 

  IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT HAIL 
           DAMAGE TO ROOFS...SIDING...WINDOWS AND VEHICLES. EXPECT 
           WIND DAMAGE TO ROOFS...SIDING AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  PLAQUEMINE...ST. GABRIEL...WHITE CASTLE AND BAYOU SORREL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3028 9153 3032 9117 3032 9114 3031 9112
      3006 9112 3008 9138 3010 9139 3010 9146
      3011 9147 3013 9146 3014 9147 3019 9147
      3020 9149 3023 9148 3024 9153
TIME...MOT...LOC 0041Z 270DEG 22KT 3020 9145 

HAIL...1.75IN
WIND...60MPH
 
$$

24/RR
2 follow-up statements
385 
WWUS54 KLIX 190058
SVSLIX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
758 PM CDT FRI MAR 18 2016

LAC047-190115-
/O.CON.KLIX.SV.W.0069.000000T0000Z-160319T0115Z/
IBERVILLE LA-
758 PM CDT FRI MAR 18 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR SOUTHEASTERN IBERVILLE PARISH...

AT 758 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER BAYOU
SORREL...OR 12 MILES SOUTHWEST OF PLAQUEMINE...MOVING SOUTHEAST AT 25
MPH.

HAZARD...GOLF BALL SIZE HAIL AND 60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT HAIL 
         DAMAGE TO ROOFS...SIDING...WINDOWS AND VEHICLES. EXPECT 
         WIND DAMAGE TO ROOFS...SIDING AND TREES. 

LOCATIONS IMPACTED INCLUDE...
WHITE CASTLE AND BAYOU SORREL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3010 9144 3018 9139 3017 9112 3006 9112
      3008 9138 3010 9139
TIME...MOT...LOC 0058Z 293DEG 22KT 3012 9134 

HAIL...1.75IN
WIND...60MPH
 
$$

24/RR
073 
WWUS54 KLIX 190114
SVSLIX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
814 PM CDT FRI MAR 18 2016

LAC047-190124-
/O.EXP.KLIX.SV.W.0069.000000T0000Z-160319T0115Z/
IBERVILLE LA-
814 PM CDT FRI MAR 18 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN IBERVILLE PARISH
WILL EXPIRE AT 815 PM CDT...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER SMALL HAIL
IS STILL POSSIBLE WITH THIS THUNDERSTORM.

REMEMBER...A SEVERE THUNDERSTORM WARNING STILL REMAINS IN EFFECT FOR
SOUTHEASTERN IBERVILLE PARISH UNTIL 845 PM CDT. 

LAT...LON 3010 9144 3018 9139 3017 9112 3006 9112
      3008 9138 3010 9139
TIME...MOT...LOC 0111Z 270DEG 22KT 3012 9134 

$$

24/RR

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Mar 18, 4:24 PM CDT, 3 hours 18 minutes earlier.

Area forecast discussion, Mar 18, 4:24 PM CDT, 3 hours 18 minutes before
AREA FORECAST DISSCUSSION
NATIONAL WEATHER SERVICE NEW ORLEANS LA
424 PM CDT FRI MAR 18 2016

.SHORT TERM...
MESSY DAY ACROSS THE FORECAST AREA AS A PESKY STATIONARY FRONT
CONTINUES TO BE THE FOCUS OF SHOWER AND THUNDERSTORM DEVELOPMENT.
THE STORM PREDICTION CENTER HAS PORTIONS OF THE FORECAST AREA IN
A SLIGHT RISK FOR SEVERE WEATHER. WE HAD SOME SEVERE STORMS
DEVELOP THIS MORNING THAT PRODUCED GOLFBALL SIZED HAIL. SINCE THEN
MOST OF THE STORMS HAVE BEEN BELOW SEVERE LIMITS. AS LONG AS THIS
BOUNDARY IS OVER THE AREA RAIN CHANCES WILL BE HIGH. WILL CARRY
LIKELY POPS TONIGHT. SOME OF THE HIGH RES GUIDANCE SUGGESTS MORE
DEVELOPMENT MOVING THROUGH THE AREA LATER ON TONIGHT. WE WILL HAVE
TO MONITOR THIS OVERNIGHT. TOMORROW UPPER LOW WILL MOVE TOWARD
THE GREAT LAKES REGION WITH AN UPPER TROUGH DIGGING INTO CENTRAL
TEXAS. THIS WILL FORCE A COLD FRONT THROUGH THE AREA DURING THE
DAY SATURDAY AND WILL PUT AN END TO THE RAINFALL FINALLY. THE
BIG STORY WILL BE THE MUCH COOLER TEMPERATURES THAT WILL FILTER IN
BEHIND THE FRONT. LOWS WILL DROP INTO THE 30S ON BOTH SATURDAY AND
SUNDAY NIGHTS. THERE WILL BE SOME COOL...ACTUALLY COLD MORNINGS
ACROSS THE NORTHSHORE. SOME SPOTS MAY FLIRT WITH FREEZING
TEMPERATURES ON MONDAY MORNING. DAY TIME TEMPS THIS WEEKEND INTO
THE BEGINNING OF NEXT WEEK SHOULD BE IN THE LOWER TO MID 60S.

.LONG TERM...
HIGH PRESSURE WILL BE IN CONTROL AT THE BEGINNING OF NEXT WEEK AS
TEMPERATURES MODERATE GOING THROUGH THE WEEK. TEMPS WILL RETURN TO
NEAR NORMAL TUESDAY AND WEDNESDAY...AND WILL BE A FEW DEGREES
ABOVE NORMAL BY THURSDAY. THE NEXT CHANCE OF ORGANIZED RAINFALL
LOOKS TO BE LATE THURSDAY NIGHT INTO FRIDAY AS BOTH MODELS POINT
TO A FAIRLY STRONG SYSTEM MOVING ACROSS THE COUNTRY LATER ON NEXT
WEEK. THIS SYSTEM WILL HAVE TO BE WATCHED IN THE COMING DAYS.

&&

.AVIATION...
EXPECT MVFR TO IFR CONDITIONS THROUGH THE OVERNIGHT HOURS. SHOWERS
AND STORMS WILL CONTINUE TO BE AN ISSUE THROUGH SATURDAY MORNING.
CONDITIONS IMPROVE LATE TOMORROW MORNING INTO THE AFTERNOON.

&&

.MARINE...
THUNDERSTORMS WILL CONTINUE OVER THE COASTAL WATERS WITH SOME OF
THESE BECOMING SEVERE. A STRONG COLD FRONT IS EXPECTED TO MOVE
THROUGH THE COASTAL WATERS SATURDAY AFTERNOON AND EVENING. A SMALL
CRAFT ADVISORY HAS BEEN ISSUED FROM SATURDAY AFTERNOON THROUGH
SUNDAY EVENING. A BRIEF BREAK IN THE ACTION FOR MONDAY AND
TUESDAY BEFORE MODERATE ONSHORE FLOW RETURNS.

&&

.DECISION SUPPORT...
DSS CODE....BLUE.
DEPLOYED...NONE.
ACTIVATION...NONE.
ACTIVITIES...MODERATE RIVER FLOODING.
             MARGINAL TO SLIGHT RISK OF SEVERE WEATHER.

DECISION SUPPORT SERVICES (DSS) CODE LEGEND
GREEN  = NO WEATHER IMPACTS THAT REQUIRE ACTION
BLUE   = LONG FUSED WATCH/WARNING/ADVISORY IN EFFECT OR HIGH
         VISIBILITY EVENT
YELLOW = HEIGHTENED IMPACTS WITH SHORT FUSED WATCH/WARNING/ADVISORY
         ISSUANCES; RADAR SUPPORT
ORANGE = HIGH IMPACTS - SLIGHT TO MODERATE RISK SEVERE; NEARBY
         TROPICAL EVENTS; HAZMAT OR OTHER LARGE EPISODES
RED    = FULL ENGAGEMENT FOR MODERATE RISK SVR AND/OR DIRECT
         TROPICAL THREATS; EVENTS OF NATIONAL SIGNIFICANCE

&&

.PRELIMINARY POINT TEMPS/POPS...
MCB  57  61  39  61 /  70  30  10   0
BTR  60  64  41  63 /  70  50  10   0
ASD  63  69  43  65 /  70  60  10   0
MSY  63  68  48  64 /  70  60  10   0
GPT  65  70  44  64 /  70  70  10   0
PQL  63  71  44  64 /  70  80  10   0

&&

.LIX WATCHES/WARNINGS/ADVISORIES...
LA...NONE.
GM...SMALL CRAFT ADVISORY FROM 4 PM SATURDAY TO 7 PM CDT SUNDAY FOR
     GMZ530-532-534-536-538-550-552-555-557-570-572-575-577.

MS...NONE.
GM...SMALL CRAFT ADVISORY FROM 4 PM SATURDAY TO 7 PM CDT SUNDAY FOR
     GMZ532-534-536-538-550-552-555-557-570-572-575-577.

&&
Hazardous weather outlook, Mar 18, 6:20 PM CDT, 1 hour 22 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NEW ORLEANS LA
620 PM CDT FRI MAR 18 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>082-191130-
LAKE PONTCHARTRAIN AND LAKE MAUREPAS-MISSISSIPPI SOUND-
LAKE BORGNE-CHANDELEUR SOUND-BRETON SOUND-
COASTAL WATERS FROM PORT FOURCHON LA TO LOWER ATCHAFALAYA RIVER
LA OUT 20 NM-
COASTAL WATERS FROM THE SOUTHWEST PASS OF THE MISSISSIPPI RIVER
TO PORT FOURCHON LOUISIANA OUT 20 NM-
COASTAL WATERS FROM BOOTHVILLE LA TO SOUTHWEST PASS OF THE
MISSISSIPPI RIVER OUT 20 NM-
COASTAL WATERS FROM PASCAGOULA MISSISSIPPI TO STAKE ISLAND OUT
20 NM-
COASTAL WATERS FROM PORT FOURCHON LOUISIANA TO LOWER ATCHAFALAYA
RIVER LA FROM 20 TO 60 NM-
COASTAL WATERS FROM SOUTHWEST PASS OF THE MISSISSIPPI RIVER TO
PORT FOURCHON LOUISIANA FROM 20 TO 60 NM-
COASTAL WATERS FROM STAKE ISLAND LA TO SOUTHWEST PASS OF THE
MISSISSIPPI RIVER FROM 20 TO 60 NM-
COASTAL WATERS FROM PASCAGOULA MISSISSIPPI TO STAKE ISLAND
LOUISIANA OUT 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-
620 PM CDT FRI MAR 18 2016

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

.DAY ONE...TONIGHT

THUNDERSTORMS TONIGHT MAY APPROACH SEVERE LEVELS AT TIMES. THE
PRIMARY THREAT WILL BE LARGE HAIL GENERALLY DIME TO GOLF BALL IN
DIAMETER...WIND GUSTS 30 TO 40 MPH AND OCCASIONAL LIGHTNING.

ADDITIONALLY...RAINFALL MAY PRODUCE 1 TO 3 INCHES OF ACCUMULATION
FROM STRONGER THUNDERSTORMS. THIS MAY RESULT IN LOCALIZED FLOODING
OR PONDING OF WATER IN AREAS THAT HAVE SATURATED GROUND.

SEVERAL RIVERS REMAIN IN FLOOD. SEE LATEST RIVER FLOOD WARNINGS
AND STATEMENTS FOR DETAILS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

STRONG NORTHERLY WINDS DEVELOPING OVER THE GULF WATERS SATURDAY
AFTERNOON THROUGH SUNDAY WIL RESULT IN HAZARDOUS CONDITIONS FOR
SMALL CRAFT. A SMALL CRAFT ADVISORY IS IN EFFECT FOR SATURDAY
AFTERNOON THROUGH SUNDAY AFTERNOON.

SCATTERED FROST IS POSSIBLE MONDAY MORNING AS OVERNIGHT LOWS FALL
INTO THE MID 30S.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

24/RR

In the hours before

Local storm report, Mar 18, 2:52 PM CDT, 4 hours 50 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
252 PM CDT FRI MAR 18 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0135 PM     MARINE TSTM WIND 15 S BURAS              29.12N 89.50W
03/18/2016  M42 MPH          GMZ552             LA   AWOS

            KDLP RECORDED A WIND GUST OF 42 MPH/36 KNOTS.

&&

CBANNAN
Local storm report, Mar 18, 3:02 PM CDT, 4 hours 40 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
302 PM CDT FRI MAR 18 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0730 PM     TSTM WND DMG     HAMMOND                 30.51N 90.46W
03/17/2016                   TANGIPAHOA         LA   NEWSPAPER

            A HAMMOND NEWPAPER REPORTER STATED THAT SEVERAL TREES
            WERE BLOWN DOWN IN THE HAMMOND AREA. ONE TREE TOOK DOWN A
            POWER LINE ON LA1064 JUST WEST OF I55 WHICH STARTED A
            GRASS FIRE. HE RELAYED A REPORT FROM THE HAMMOND FIRE
            DEPARTMENT OF 5 DOWNED POWER LINES IN THE CITY. FINALLY,
            A TREE WAS BLOWN DOWN ON TO A HOUSE ROOF. ANOTHER TREE
            WAS BLOWN ONTO A GARAGE ROOF. TIME IS APPROXIMATE.

&&
Local storm report, Mar 18, 3:18 PM CDT, 4 hours 24 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
318 PM CDT FRI MAR 18 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1135 AM     WATER SPOUT      85 ESE VENICE           28.80N 88.06W
03/18/2016                   GMZ577             XX   BROADCAST MEDIA

            LARGE WATERSPOUT SEEN OVER THE OPEN WATERS. RELAYED BY
            SOCIAL MEDIA.

&&

CBANNAN
Special weather statement, Mar 18, 5:05 PM CDT, 2 hours 37 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
505 PM CDT FRI MAR 18 2016

LAZ034-035-MSZ068-182230-
WEST FELICIANA-POINTE COUPEE-WILKINSON-
505 PM CDT FRI MAR 18 2016

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN WEST FELICIANA...NORTH
CENTRAL POINTE COUPEE PARISHES IN SOUTHEASTERN LOUISIANA AND
SOUTHWESTERN WILKINSON COUNTIES...

AT 504 PM CDT...A STRONG THUNDERSTORM WAS NEAR LETTSWORTH...OR 11
MILES EAST OF SIMMESPORT...MOVING EAST AT 30 MPH.

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

LOCATIONS IMPACTED INCLUDE...
FORT ADAMS.

LAT...LON 3104 9172 3104 9166 3102 9164 3099 9166
      3097 9166 3100 9164 3102 9159 3104 9156
      3107 9156 3110 9160 3116 9134 3096 9125
      3087 9166 3102 9175
TIME...MOT...LOC 2204Z 251DEG 24KT 3094 9162

24/RR
Special weather statement, Mar 18, 6:52 PM CDT, 50 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
652 PM CDT FRI MAR 18 2016

LAZ046>049-056-190115-
IBERVILLE-ASSUMPTION-WEST BATON ROUGE-EAST BATON ROUGE-ASCENSION-
652 PM CDT FRI MAR 18 2016

...STRONG THUNDERSTORMS WILL AFFECT NORTHWESTERN ASSUMPTION...WEST
BATON ROUGE...IBERVILLE...EAST BATON ROUGE AND ASCENSION PARISHES...

AT 651 PM CDT...A STRONG THUNDERSTORM WAS OVER BAYOU SORREL...OR 8
MILES SOUTHWEST OF PLAQUEMINE...MOVING NORTHEAST AT 20 MPH.

WINDS IN EXCESS OF 30 MPH AND NICKEL SIZE HAIL ARE POSSIBLE WITH
THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
BATON ROUGE...ZACHARY...BAKER...DENHAM SPRINGS...GONZALES...
DONALDSONVILLE...PLAQUEMINE...PORT ALLEN...OAK HILLS PLACE...ST.
GABRIEL...ADDIS...BRUSLY...WHITE CASTLE...SORRENTO...ROSEDALE...
PRIDE...GARDERE...BROWNFIELDS...BAYOU SORREL AND GREENWELL SPRING.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 3036 9157 3033 9132 3051 9150 3051 9142
      3070 9126 3072 9085 3058 9099 3040 9097
      3018 9070 3023 9064 3017 9064 3011 9091
      3006 9096 3008 9109 2988 9119 2999 9126
      3004 9122 3010 9146 3023 9148 3027 9159
TIME...MOT...LOC 2351Z 235DEG 19KT 3019 9134

24/RR
Special weather statement, Mar 18, 7:02 PM CDT, 40 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
702 PM CDT FRI MAR 18 2016

MSZ070-071-190100-
PIKE-WALTHALL-
702 PM CDT FRI MAR 18 2016

...A STRONG THUNDERSTORM WILL AFFECT WALTHALL AND NORTHERN PIKE
COUNTIES...

AT 702 PM CDT...A STRONG THUNDERSTORM WAS NEAR SUMMIT...OR 7 MILES
NORTH OF MCCOMB...MOVING SOUTHEAST AT 25 MPH.

WINDS IN EXCESS OF 40 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
MCCOMB...SUMMIT...TYLERTOWN AND SALEM.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 3131 9005 3118 9003 3117 9001 3113 9000
      3113 8997 3101 9005 3129 9054 3132 9055
      3135 9053 3135 9017
TIME...MOT...LOC 0002Z 298DEG 21KT 3135 9044

24/RR

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 18, 8:07 PM CDTSpecial Weather StatementLIXSaint Charles23 min
Mar 18, 8:12 PM CDTSevere Thunderstorm WarningLIXAscension, Assumption, Iberville, Saint James33 min
Mar 18, 8:45 PM CDTSpecial Weather StatementLIXAscension, Assumption, Saint James, Saint John the Baptist60 min
Mar 18, 8:47 PM CDTSpecial Weather StatementLIXOrleans, Saint Charles, Saint John the Baptist58 min
Mar 18, 9:32 PM CDTSpecial Weather StatementLIXJefferson, Lafourche58 min
Mar 18, 9:45 PM CDTSpecial Marine WarningLIX90 min
Mar 18, 9:50 PM CDTSpecial Weather StatementLIXLafourche, Orleans, Saint Charles, Saint Tammany55 min
Mar 18, 9:52 PM CDTSpecial Marine WarningLIX23 min
Mar 18, 10:27 PM CDTSpecial Weather StatementLIXLafourche, Orleans, Terrebonne33 min
Mar 18, 10:30 PM CDTSpecial Weather StatementLIXJefferson30 min
Mar 18, 10:32 PM CDTSpecial Marine WarningLIX88 min
Mar 18, 10:40 PM CDTSevere Thunderstorm WarningLIXPlaquemines, Saint Bernard35 min
Mar 18, 10:50 PM CDTTornado WarningLIXSaint Bernard25 min
Mar 18, 11:09 PM CDTSpecial Marine WarningLIX111 min
Mar 18, 11:13 PM CDTSpecial Weather StatementLIXPlaquemines92 min
Mar 18, 11:22 PM CDTSpecial Marine WarningLIX83 min
Mar 18, 11:35 PM CDTSpecial Weather StatementLIXJefferson40 min
Mar 18, 11:38 PM CDTSpecial Marine WarningLIX22 min
Mar 18, 11:42 PM CDTAreal Flood AdvisoryLIXAssumption, Lafourche, Saint Charles, Terrebonne2 hr
Mar 19, 12:46 AM CDTSpecial Weather StatementLIXPlaquemines29 min
Mar 19, 12:47 AM CDTSpecial Marine WarningLIX28 min
Mar 19, 12:50 AM CDTSpecial Marine WarningLIX25 min
Mar 19, 1:11 AM CDTSpecial Marine WarningLIX64 min
Mar 19, 1:15 AM CDTSpecial Marine WarningLIX60 min
Mar 19, 2:14 AM CDTSpecial Marine WarningLIX61 min
Mar 19, 3:00 AM CDTSpecial Weather StatementLIXLafourche30 min
Mar 19, 8:29 AM CDTSpecial Marine WarningLIX2 hr
Mar 19, 9:50 AM CDTSpecial Marine WarningLIX115 min
Mar 19, 10:54 AM CDTRiver Flood WarningLIXSaint Charles, Saint James, Saint John the Baptist4 days

Nearby

Severe Thunderstorm Warnings in Louisiana, 2016Every severe thunderstorm 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; the sounding from the Mesonet's radiosonde archive.