Severe Thunderstorm Warning 142, NWS New Orleans, LA

Issued

Oct 27, 2021, 5:22 PM CDT (22:22 UTC)

Expired

Oct 27, 2021, 6:00 PM CDT

In force

38 min

Issued by

NWS New Orleans, LA

Area

Storm-based polygon

Tornado

Possible

Hail

0.75 in

Wind

60.0 mph

Counties Ascension Parish, LA, Assumption Parish, LA, Lafourche Parish, LA, Livingston Parish, LA, Saint Charles Parish, LA, Saint James Parish, LA, Saint John the Baptist Parish, LA, Terrebonne Parish, LA

255 
WUUS54 KLIX 272222
SVRLIX
LAC005-007-057-063-089-093-095-109-272300-
/O.NEW.KLIX.SV.W.0142.211027T2222Z-211027T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service New Orleans LA
522 PM CDT Wed Oct 27 2021

The National Weather Service in New Orleans has issued a

* Severe Thunderstorm Warning for...
  St. John The Baptist Parish in southeastern Louisiana...
  East central Ascension Parish in southeastern Louisiana...
  St. James Parish in southeastern Louisiana...
  St. Charles Parish in southeastern Louisiana...
  Terrebonne Parish in southeastern Louisiana...
  Southeastern Livingston Parish in southeastern Louisiana...
  Northwestern Lafourche Parish in southeastern Louisiana...
  Southeastern Assumption Parish in southeastern Louisiana...

* Until 600 PM CDT.

* At 521 PM CDT, severe thunderstorms were located along a line
  extending from Whitehall to Wallace to 15 miles west of Cocodrie,
  moving northeast at 45 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Houma, Thibodaux, Reserve, Hahnville, Laplace, Gramercy, Lutcher,
  Lockport, Mathews, Schriever, Montz, Chauvin, Dulac, Luling,
  Garyville, Boutte, Raceland, Ama, Chackbay and Destrehan.

This includes the following Interstates...
 Interstate 10 in Louisiana between mile markers 187 and 221.
 Interstate 55 in Louisiana between mile markers 1 and 12.
 Interstate 310 between mile markers 1 and 11.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 PM CDT for southeastern
Louisiana.

For your protection move to an interior room on the lowest floor of a
building.

Squall lines can produce brief tornadoes and straight-line wind 
damage. Although a tornado is not immediately likely, it is best to 
move to an interior room on the lowest floor of a building. These 
storms may cause serious injury and significant property damage.

A Tornado Watch remains in effect until 1000 PM CDT for southeastern
Louisiana.

&&

LAT...LON 2910 9085 2923 9124 2933 9117 2925 9113
      2926 9112 2936 9118 3005 9090 3035 9067
      3031 9054 3017 9057 3018 9047 3026 9042
      3024 9036 3012 9043 3005 9028 2997 9028
      2921 9056 2922 9053 2921 9053 2909 9086
TIME...MOT...LOC 2221Z 239DEG 39KT 3029 9069 3001 9067 2921 9091 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

JRK

331 
WWUS54 KLIX 272245
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
545 PM CDT Wed Oct 27 2021

LAC007-272255-
/O.CAN.KLIX.SV.W.0142.000000T0000Z-211027T2300Z/
Assumption LA-
545 PM CDT Wed Oct 27 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ASSUMPTION PARISH
IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 1000 PM CDT for southeastern
Louisiana.

LAT...LON 2914 9096 2947 9085 3007 9066 3031 9070
      3035 9066 3031 9054 3017 9057 3018 9047
      3026 9042 3024 9036 3012 9043 3005 9028
      2997 9028 2921 9056 2922 9053 2921 9053
      2909 9086 2910 9085
TIME...MOT...LOC 2245Z 237DEG 44KT 3030 9058 3014 9043 2953 9047 2925
9072

$$

LAC005-057-063-089-093-095-109-272300-
/O.CON.KLIX.SV.W.0142.000000T0000Z-211027T2300Z/
St. John The Baptist LA-Ascension LA-St. James LA-St. Charles LA-
Terrebonne LA-Livingston LA-Lafourche LA-
545 PM CDT Wed Oct 27 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM CDT
FOR ST. JOHN THE BAPTIST...EAST CENTRAL ASCENSION...EASTERN ST.
JAMES...ST. CHARLES...EASTERN TERREBONNE...SOUTHEASTERN LIVINGSTON
AND NORTH CENTRAL LAFOURCHE PARISHES...

At 545 PM CDT, severe thunderstorms were located along a line
extending from 7 miles east of Whitehall to near Laplace to 6 miles
southwest of Larose to near Cocodrie, moving northeast at 50 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Houma, Reserve, Hahnville, Laplace, Lockport, Mathews, Montz,
Chauvin, Dulac, Luling, Garyville, Boutte, Raceland, Ama, Destrehan,
Montegut, Bayou Cane, Cocodrie, St. Rose and Killona.

This includes the following Interstates...
 Interstate 10 in Louisiana between mile markers 196 and 221.
 Interstate 55 in Louisiana between mile markers 1 and 12.
 Interstate 310 between mile markers 1 and 11.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 PM CDT for southeastern
Louisiana.

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

&&

LAT...LON 2914 9096 2947 9085 3007 9066 3031 9070
      3035 9066 3031 9054 3017 9057 3018 9047
      3026 9042 3024 9036 3012 9043 3005 9028
      2997 9028 2921 9056 2922 9053 2921 9053
      2909 9086 2910 9085
TIME...MOT...LOC 2245Z 237DEG 44KT 3030 9058 3014 9043 2953 9047 2925
9072

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

JRK

Severe Thunderstorm Warnings in Louisiana, 2021Every severe thunderstorm warning in 2021

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.