Tornado Warning 88, NWS New Orleans, LA

069 
WWUS54 KLIX 271110
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
610 AM CDT Thu Aug 27 2026

LAC057-271119-
/O.CAN.KLIX.TO.W.0088.000000T0000Z-260827T1130Z/
Lafourche LA-
610 AM CDT Thu Aug 27 2026

...THE TORNADO WARNING FOR NORTH CENTRAL LAFOURCHE PARISH IS
CANCELLED...

The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

&&

LAT...LON 2989 9054 2989 9055 3005 9060 3008 9059
      3011 9053 2996 9033 2987 9052
TIME...MOT...LOC 1109Z 331DEG 26KT 3006 9054 

$$

LAC089-095-271130-
/O.CON.KLIX.TO.W.0088.000000T0000Z-260827T1130Z/
St. John The Baptist LA-St. Charles LA-
610 AM CDT Thu Aug 27 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 AM CDT FOR SOUTH
CENTRAL ST. JOHN THE BAPTIST AND NORTHWESTERN ST. CHARLES PARISHES...

At 609 AM CDT, a severe thunderstorm capable of producing a tornado
was located over Reserve, moving southeast at 30 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Laplace, Reserve, Montz, Edgard, Taft, and Killona around 615 AM 
  CDT.
  Hahnville around 620 AM CDT.
  Luling around 625 AM CDT.

This includes Interstate 310 between mile markers 5 and 7.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 2989 9054 2989 9055 3005 9060 3008 9059
      3011 9053 2996 9033 2987 9052
TIME...MOT...LOC 1109Z 331DEG 26KT 3006 9054 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

MEFFER

865 
WWUS54 KLIX 271115
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
615 AM CDT Thu Aug 27 2026

LAC089-095-271125-
/O.CAN.KLIX.TO.W.0088.000000T0000Z-260827T1130Z/
St. John The Baptist LA-St. Charles LA-
615 AM CDT Thu Aug 27 2026

...THE TORNADO WARNING FOR SOUTH CENTRAL ST. JOHN THE BAPTIST AND
NORTHWESTERN ST. CHARLES PARISHES IS CANCELLED...

The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.  However, gusty winds are
still possible with this thunderstorm.

&&

LAT...LON 2989 9054 2989 9055 3005 9060 3008 9059
      3011 9053 2996 9033 2987 9052
TIME...MOT...LOC 1114Z 331DEG 26KT 3002 9051 

$$

MEFFER

Area Forecast Discussion
National Weather Service New Orleans LA
541 AM CDT Thu Aug 27 2026

...New UPDATE, AVIATION...

.KEY MESSAGES...
Updated at 529 AM CDT Thu Aug 27 2026

- Scattered to numerous showers and thunderstorms are forecast
  mainly during the afternoon hours today and Friday. A few
  storms could become strong both days. The main threat from any
  severe storms will be damaging wind gusts. Frequent lightning
  and periods of heavy rain will also be possible from these
  storms. Stay weather aware and remember when thunder roars, go
  indoors.

- The increase in rain chances and cloud cover will help limit
  heat threats, however, heat index values may still approach
  advisory criteria before thunderstorms develop by early
  afternoon. Those with outdoor plans should continue to take
  precautions to avoid heat-related illnesses. Stay hydrated and
  take breaks in the shade or air conditioning if possible.

&&

.UPDATE...
Issued at 529 AM CDT Thu Aug 27 2026

Have adjusted PoP grids on a couple of occasions this morning.
Convective complex moving southeastward across the CWA, and about
to reach Lake Pontchartrain. Instantaneous rainfall rates of 4-6
inches per hour have been common, but fortunately in most places
it hasn't rained hard for nearly that long. Still enough to cause
rush hour issues with the heaviest storms. Mesoscale models aren't
quite as bullish on redevelopment this afternoon as earlier runs
were, but won't dry things out completely quite yet.

&&

.SHORT TERM...
(Now through Sunday)
Issued at 1255 AM CDT Thu Aug 27 2026

Upper ridging continued to be centered near the Four Corners area
during the evening with a deep upper trough to the east of the
ridge extending from Lake Huron to Florida. A shortwave moving
toward the base of the trough was over Arkansas during the
evening.

Locally, there was a small area of thunderstorms between
Hattiesburg and Gulfport that was sagging southward, and will
reach Interstate 10 in the next 2 hours. A more extensive area of
storms was noted near Interstate 20, also sinking southward. The
storms near Interstate 20 are likely to make it into southwest
Mississippi around 4 AM CDT with heavy rain and brief gusty winds.
Ahead of the storms, temperatures were in the upper 70s to mid
80s at midnight CDT.

Main forecast question this morning is how far southward will the
convection near Interstate 20 make it? Some of the mesoscale
models dissipate this area of convection by mid morning, while
others (like the FV3) drive it into the coastal waters. The
forecast scenario we'll go with has the early morning convection
running out of energy and real estate around mid-morning, with
regeneration by mid afternoon. This batch will make it into early
evening before dissipating.

Precipitable water values diminish somewhat for the weekend, but
still remain near the 75th percentile (1.95). That will be
sufficient for at least scattered thunderstorms each day, mainly
during the heat of the day, as the troughing retreats far enough
west to temporarily get the local area back to what seems to be
the prevailing pattern this season, where the local area is stuck
in the weakness between 2 ridges.

With the multiple rounds of precipitation expected today, high
temperatures probably won't get out of the 80s, although its going
to be pretty humid. Saturday will probably be the warmest of the
set, as moisture levels will be at a moderate level, getting into
the lower 90s. Overnight lows will be 3 to 5 degrees above normal,
mainly middle 70s.

&&

.LONG TERM...
(Sunday night through Wednesday)
Issued at 1255 AM CDT Thu Aug 27 2026

As we move into the extended portion of the forecast the pattern
will begin to shift. The weak troughing over the southeastern CONUS
into the north-central Gulf will get squeezed as ridging to our west
and northwest builds east. This will lead to a weak cut-off mid lvl
low remaining in place over the northern Gulf late Sunday which will
then slowly drift west-southwest into the western Gulf by Tuesday
night. There will be ample moisture to work with and thus we will
likely see diurnal convection each day.

At the sfc broad and weak high pressure will be centered well off to
the east-northeast leaving a rather weak pressure gradient in place.
This will also lead to generally weak southeast flow however winds
will be somewhat dictated by diurnal shifts as well especially
closer to the coast where the southeast winds will likely be a
little enhanced from the late morning through the afternoon hours.
Winds in the low levels will also be mostly light and out of the
southeast or light and variable. With winds becoming more
southeasterly from the sfc to at least h85 each day by late morning
the seabreeze will not have much of a problem penetrating well
inland through the afternoon. Combine that with more than sufficient
moisture and broad weak low aloft afternoon showers and
thunderstorms look like a pretty good bet. Now at any one point in
the afternoon we probably won't have any more than scattered
coverage but PoPs especially the southern half of the CWA will be
around 60 possibly 70% a few afternoons. These will be more of the
typical Summer type afternoon thunderstorm with maybe a few strong
storms possible but the biggest issues from any of these storms will
be cloud to ground lightning and brief locally heavy rain.

Temperature wise we will end the weekend and begin the new work week
with near normal to slightly above normal temps but by mid week it
looks like we may start to warm back up. As the low moves farther to
the west the ridge will begin to build back in over the area. With
that we will see the rain chances start to fall as suppression
increases across the region. By Wednesday we may be back into the
mid 90s across the northern 3rd/half of the CWA. /CAB/

&&

.AVIATION...
(12Z TAFS)
Issued at 529 AM CDT Thu Aug 27 2026

SHRA/TSRA moving across the terminals at a pretty good clip for
now, and may be able to drop TSRA out of at least the KMCB and
KBTR forecasts in the near term. Still a question of whether we
get redevelopment this afternoon, as we'll need to get some
sunshine to destabilize things again. If we do, it'll be mid to
late afternoon. Will keep most previous trends going for one more
package.

&&

.MARINE...
Issued at 1255 AM CDT Thu Aug 27 2026

Surface high pressure over the Gulf will maintain a generally
weak pressure gradient through much of the period. Weak and
variable winds around 5 to 10 knots and varying between southerly
and westerly will predominate through the week. Scattered
thunderstorms will remain possible every day with winds and waves
higher in and near this activity.

&&

.LIX WATCHES/WARNINGS/ADVISORIES...
LA...None.
GM...None.
MS...None.
GM...None.
&&

SHORT TERM...RW
LONG TERM....CAB
AVIATION...RW
MARINE...RW
UPDATE...RW

Preliminary Local Storm Report
National Weather Service New Orleans LA
357 AM CDT Thu Aug 27 2026

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

0204 AM     Marine Tstm Wind 2 SE Long Beach         30.34N 89.15W
08/27/2026  M45 MPH          GMZ532             MS   Mesonet

            The Weatherflow mesonet at Gulfport XGPT
            measured a thunderstorm wind gust of 45 mph.

&&

MEFFER

Special Weather Statement
National Weather Service New Orleans LA
423 AM CDT Thu Aug 27 2026

LAZ034>037-039-046>048-071-081-083-085-MSZ069>071-271030-
Central Tangipahoa LA-East Feliciana LA-Western Ascension LA-
Pointe Coupee LA-East Baton Rouge LA-West Feliciana LA-Washington LA-
Iberville LA-Northern Livingston LA-St. Helena LA-
Northern Tangipahoa LA-West Baton Rouge LA-Amite MS-Pike MS-
Walthall MS-
423 AM CDT Thu Aug 27 2026

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF SOUTHEASTERN WEST
FELICIANA, SOUTHERN POINTE COUPEE, EAST BATON ROUGE, NORTHWESTERN
ASCENSION, WEST BATON ROUGE, ST. HELENA, LIVINGSTON, EAST FELICIANA,
NORTHERN IBERVILLE, TANGIPAHOA AND WASHINGTON PARISHES, WALTHALL,
PIKE AND SOUTHEASTERN AMITE COUNTIES THROUGH 530 AM CDT
...

At 423 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Salem to near Maringouin. Movement was
east at 35 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Baton Rouge, Hammond, Zachary, Baker, Mccomb, Denham Springs,
Gonzales, Plaquemine, Port Allen, New Roads, Franklinton, Jackson,
Clinton, Greensburg, Amite, Oak Hills Place, St. Gabriel, Walker,
Amite City, and Addis.

This includes the following Interstates...
 Interstate 10 in Louisiana between mile markers 134 and 177.
 Interstate 12 between mile markers 1 and 36.
 Interstate 55 in Louisiana between mile markers 31 and 66.
 Interstate 55 in Mississippi between mile markers 1 and 16.
 Interstate 110 in Louisiana between mile markers 1 and 8.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3134 9004 3118 9003 3113 9000 3113 8994
      3107 8992 3107 8984 3100 8983 3100 8973
      3090 8976 3069 9013 3071 9026 3062 9025
      3032 9083 3028 9084 3019 9099 3043 9164
      3050 9171 3050 9175 3057 9175 3135 9026
TIME...MOT...LOC 0923Z 285DEG 31KT 3128 9013 3046 9158

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

MEFFER

Special Weather Statement
National Weather Service New Orleans LA
444 AM CDT Thu Aug 27 2026

LAZ064-070-077-078-087-089-090-092-098-099-271030-
Central Plaquemines LA-Western Orleans LA-Upper St. Bernard LA-
Central Jefferson LA-Eastern Orleans LA-Central St. Charles LA-
Upper Plaquemines LA-Lower St. Bernard LA-Upper St. Charles LA-
Upper Jefferson LA-
444 AM CDT Thu Aug 27 2026

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF NORTHWESTERN ST.
BERNARD, NORTHEASTERN ST. CHARLES, ORLEANS, NORTHERN JEFFERSON AND
NORTHWESTERN PLAQUEMINES PARISHES THROUGH 530 AM CDT
...

At 444 AM CDT, Doppler radar was tracking a cluster of strong
thunderstorms near East New Orleans, moving southwest at 15 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
New Orleans, Kenner, Chalmette, Avondale, Metairie, Marrero, Harvey,
East New Orleans, Timberlane, Belle Chasse, Jefferson, Gretna,
Harahan, Westwego, Jean Lafitte, River Ridge, Estelle, Woodmere,
Elmwood, and Violet.

This includes the following Interstates...
 Interstate 10 in Louisiana between mile markers 214 and 256.
 Interstate 310 between mile markers 1 and 3.
 Interstate 510 between mile markers 1 and 3.
 Interstate 610 between mile markers 1 and 4.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3006 9041 3009 9027 3005 9006 3009 8997
      3015 8991 3016 8985 3014 8982 3007 8967
      3000 8974 3000 8982 2996 8980 2997 8978
      2972 9006
TIME...MOT...LOC 0944Z 050DEG 14KT 3003 8998

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

MEFFER

Preliminary Local Storm Report
National Weather Service New Orleans LA
447 AM CDT Thu Aug 27 2026

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

0438 AM     Marine Tstm Wind 6 WSW East New Orleans  30.05N 90.03W
08/27/2026  M40 MPH          GMZ531             LA   Mesonet

            The Weatherflow mesonet at Lakefront Airport
            XLFK measured a thunderstorm wind gust of 40
            mph or 35 knots.

&&

MEFFER

Preliminary Local Storm Report
National Weather Service New Orleans LA
501 AM CDT Thu Aug 27 2026

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

0453 AM     Marine Tstm Wind 6 WSW East New Orleans  30.04N 90.03W
08/27/2026  M46 MPH          Orleans            LA   ASOS

            ASOS station KNEW New Orleans Lakefront
            Airport.

&&

Preliminary Local Storm Report
National Weather Service New Orleans LA
502 AM CDT Thu Aug 27 2026

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

0448 AM     Marine Tstm Wind 4 ENE Metairie          30.03N 90.11W
08/27/2026  M39 MPH          GMZ531             LA   Buoy

            Buoy station NWCL1 New Canal Station (LA).

&&