Tornado Warning 35, NWS New Orleans, LA

Area Forecast Discussion
National Weather Service New Orleans LA
404 AM CDT Wed Jun 24 2020

.SHORT TERM...
Deep tropical moisture, with PW values north of 2", continues to
stream over the area this morning. And this does not look to stop
through at least Thu. Taking a look at vectors, mass fields and the
hodo, there is very good evidence that the environment is very
supportive of training thunderstorms starting now thourgh roughly
11am today. Afterwards, these paramaters fall out of favor for this
scenario and all activity becomes more progressive and transitory.

A weak sfc low will set up today near the Houston area. Upper level
disturbances will be connected with sfc variables provided by the
weakness the sfc gives to keep sh/ts moving through the area into at
least Thu. The sfc low will pull out Thu bringing rain chances a bit
lower but definitely not shutting down the water works. Activity may
simply take a bit longer to get started with daytime heating. Some
of the stronger thunderstorms could cause some damaging straight
line winds. As normal during tropical environments, waterspouts and
a weak tornado will remain a possibility. But the main thing to look
for is the potential for flooding rainfall. This is still expected
to be localized and the most prominant thing would be streets and
low lying areas that normally flood during heavy rainfall.

Eventhough, each day will bring a chance of rain into next week. The
activity may take longer to get started and allow a few areas to dry
out each day. A slow progression to lower precip chances will occur
into mid next week.

&&

.AVIATION...
Some sites are expected to have prevailing showers and tempo TS
starting again during the pre 12z hour. All sites will eventually
have these conditions at some point during the morning. This should
be ongoing through the day once again. This activity will bring at
least IFR conditions with a few LIFR possible as +TSRA move
overhead. Outside the sh/ts VFR will be noted at each terminal but
should not last long as the majority of the day will be -SHRA and
TSRA at most terminals. A lull in activity once again overnight only
to give way to more of these same conditions for Thu.

&&

.MARINE...
Onshore wind speeds will continue to fluctuate between around 10kt
during the day and 15kt during the night. Nocturnal sh/ts numbers
will continue to be high each night for the next few nights. Winds
and seas will be higher in and around this activity. The evironment
will remain conducive for waterspouts as well and some of these
could be found in the nearshore waters and lakes mainly during the
morning hours.

&&

.PRELIMINARY POINT TEMPS/POPS...
MCB  84  72  84  73 / 100  60  80  10
BTR  83  72  83  74 / 100  50  70  10
ASD  87  72  87  74 / 100  40  60  10
MSY  86  76  87  78 / 100  40  60  10
GPT  85  75  86  77 /  90  30  50  10
PQL  88  73  88  74 /  80  30  50  10

&&

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

Special Weather Statement
National Weather Service New Orleans LA
842 AM CDT Wed Jun 24 2020

LAZ061-062-064-241415-
Orleans-Upper St. Bernard-Upper Jefferson-
842 AM CDT Wed Jun 24 2020

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN ST. BERNARD...
ORLEANS AND NORTH CENTRAL JEFFERSON PARISHES...

At 841 AM CDT, a strong thunderstorm was located near Arabi, or near
Chalmette, moving east at 25 mph.

Winds in excess of 30 mph are possible with this storm.

Locations impacted include...
New Orleans, Chalmette, East New Orleans, Harvey, Timberlane, Gretna,
Terrytown, Meraux, Arabi, Violet and Lakefront Airport.

Torrential rainfall is also occurring with this storm, 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 3002 9011 3006 8997 3015 8988 3015 8985
      3010 8984 3010 8981 3017 8974 3017 8973
      3007 8970 3006 8973 3002 8972 3004 8982
      3002 8984 2995 8980 2994 8975 2994 8976
      2989 9007
TIME...MOT...LOC 1341Z 255DEG 22KT 3001 9000

Special Weather Statement
National Weather Service New Orleans LA
916 AM CDT Wed Jun 24 2020

LAZ056>060-065>067-241500-
Lower Terrebonne-St. Charles-Upper Terrebonne-Lower
Lafourche-Assumption-St. John The Baptist-Upper Lafourche-St. James-
916 AM CDT Wed Jun 24 2020

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHWESTERN ST. JOHN
THE BAPTIST...ST. JAMES...SOUTHWESTERN ST. CHARLES...NORTHEASTERN
TERREBONNE...NORTHWESTERN LAFOURCHE AND NORTHEASTERN ASSUMPTION
PARISHES...

At 915 AM CDT, radar indicated strong thunderstorms were located
along a line extending from Bayou Geneve to near Gray to near Dulac.
Movement was northeast at 35 mph.

Wind gusts up to 50 mph are possible with these storms.

Locations impacted include...
Houma, Thibodaux, Napoleonville, Cut Off, Larose, Hahnville,
Galliano, Gramercy, Lutcher, Lockport, Mathews, Schriever, Chauvin,
Dulac, Luling, Boutte, Supreme, Raceland, Chackbay and Montegut.

Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.

LAT...LON 2931 9076 2966 9076 2978 9110 2981 9110
      2984 9113 2985 9117 3013 9085 2994 9032
      2943 9033
TIME...MOT...LOC 1415Z 233DEG 32KT 2983 9109 2969 9072 2933 9072

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
945 AM CDT WED JUN 24 2020

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

0543 AM     TSTM WND DMG     1 S BATON ROUGE         30.43N 91.13W
06/24/2020                   EAST BATON ROUGE   LA   EMERGENCY MNGR

            EM REPORTED TREES DOWN AND DEBRIS NEAR ESSEN LANE AND
            WESTMINSTER AND I-10. POSSIBLE TORNADO. NO INJURIES.

&&

MEGANWIL

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
953 AM CDT WED JUN 24 2020

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

0844 AM     MARINE TSTM WIND 1 N NEW ORLEANS         29.98N 90.08W
06/24/2020  E0 MPH           ORLEANS            LA   ASOS

            LAKEFRONT AIRPORT ASOS HAD WINDS THAT GUSTED TO 44MPH.

0844 AM     MARINE TSTM WIND 1 N NEW ORLEANS         29.98N 90.08W
06/24/2020  E0 MPH           ORLEANS            LA   ASOS

            LAKEFRONT AIRPORT HAD WIND GUSTS REPORTED AT 40 KNOTS.

&&

MEGANWIL

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1001 AM CDT WED JUN 24 2020

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

0844 AM     MARINE TSTM WIND LAKEFRONT AIRPORT       30.04N 90.03W
06/24/2020  M46.00 MPH       ORLEANS            LA   ASOS

            LAKEFRONT AIRPORT REPORTED A 46 MPH WIND GUST IN A
            THUNDERSTORM.

&&

BWAGNER

Special Weather Statement
National Weather Service New Orleans LA
1024 AM CDT Wed Jun 24 2020

LAZ060>062-064-241600-
Orleans-Upper St. Bernard-St. Charles-Upper Jefferson-
1024 AM CDT Wed Jun 24 2020

...A STRONG THUNDERSTORM WILL AFFECT WEST CENTRAL ST. BERNARD...
NORTHEASTERN ST. CHARLES...SOUTHWESTERN ORLEANS AND NORTHWESTERN
JEFFERSON PARISHES...

At 1024 AM CDT, a strong thunderstorm was located over Harahan, or
over Avondale, moving northeast at 30 mph.

Winds in excess of 40 mph are possible with this storm.

Locations impacted include...
New Orleans, Chalmette, Avondale, Metairie, Marrero, Harvey, East New
Orleans, Timberlane, Belle Chasse, Jefferson, Gretna, Harahan,
Westwego, River Ridge, Ama, St. Rose, Elmwood, Terrytown, Meraux and
Bridge City.

LAT...LON 2979 9026 2995 9036 3003 9022 3002 9011
      3003 9003 3006 9003 3004 9002 3007 8994
      3011 8991 2994 8986 2989 8999 2990 9001
      2988 9002
TIME...MOT...LOC 1524Z 239DEG 27KT 2993 9021