Severe Thunderstorm Warning 72, 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.
&&

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
140 PM CDT WED JUN 24 2020

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

1235 PM     TORNADO          1 N GULFPORT            30.40N 89.07W
06/24/2020                   HARRISON           MS   PUBLIC

            PUBLIC REPORTED BRIEF TORNADO ALONG HWY 90 EAST NEAR
            COWAN ROAD IN GULFPORT, MS.

&&

MEGANWIL

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
205 PM CDT WED JUN 24 2020

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

1244 PM     TSTM WND DMG     1 N BILOXI              30.43N 88.93W
06/24/2020                   HARRISON           MS   BROADCAST MEDIA

            BROADCAST MEDIA REPORTED SEVERAL POWER LINES DOWN IN THE
            WOOLMARKET AREA OF BILOXI NEAR DEROUEN RD AND HORACE
            RUSHING. SEVERAL TREES WERE ALSO REPORTED DOWN WITH
            EVIDENCE OF TWISTING.

&&

MEGANWIL

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
222 PM CDT WED JUN 24 2020

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

1235 PM     TSTM WND DMG     5 N BILOXI              30.49N 88.93W
06/24/2020                   HARRISON           MS   EMERGENCY MNGR

            EMERGENCY MANAGER REPORTED POWER OUTAGES AND TREE DAAMAGE
            NEAR 26245 HWY 15 NORTH OF DIBERVILLE. TREES AND POWER
            LINES WERE ALSO DAMAGED NEAR BIG JOHN ROAD AND 6160 KROHN
            RD HAD A TREE ON THE ROOF OF A HOUSE REPORTED. POWER
            LINES WERE REPORTED DOWN ON THE GROUND ON HWY 15 AS WELL.

&&

MEGANWIL

Special Weather Statement
National Weather Service New Orleans LA
248 PM CDT Wed Jun 24 2020

LAZ047-048-242045-
West Baton Rouge-East Baton Rouge-
248 PM CDT Wed Jun 24 2020

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN WEST BATON ROUGE
AND NORTHWESTERN EAST BATON ROUGE PARISHES...

At 248 PM CDT, a strong thunderstorm was located near Baker, moving
east at 15 mph.

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

Locations impacted include...
Baton Rouge, Zachary, Baker, Brownfields, Merrydale and Baton Rouge
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 3066 9131 3065 9130 3068 9129 3068 9127
      3070 9126 3071 9109 3071 9100 3045 9102
      3052 9133
TIME...MOT...LOC 1948Z 274DEG 12KT 3061 9124

Special Weather Statement
National Weather Service New Orleans LA
251 PM CDT Wed Jun 24 2020

LAZ066-242045-
Lower Terrebonne-
251 PM CDT Wed Jun 24 2020

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL TERREBONNE PARISH...

At 250 PM CDT, a strong thunderstorm was located 20 miles west of
Dulac, or 24 miles south of Morgan City, moving east at 20 mph.

Wind gusts up to 50 mph are possible with this storm.

Locations impacted include...
Dulac, Montegut, Chauvin, Cocodrie and Lumcon Center Buoy.

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

LAT...LON 2922 9064 2921 9064 2926 9087 2926 9100
      2928 9113 2946 9112 2947 9055 2928 9056
      2926 9059 2924 9057 2921 9057 2925 9061
      2921 9059
TIME...MOT...LOC 1950Z 273DEG 19KT 2937 9104

Special Weather Statement
National Weather Service New Orleans LA
254 PM CDT Wed Jun 24 2020

LAZ046>050-242100-
Iberville-Livingston-Ascension-West Baton Rouge-East Baton Rouge-
254 PM CDT Wed Jun 24 2020

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN ASCENSION...
SOUTHEASTERN WEST BATON ROUGE...WESTERN LIVINGSTON...EAST CENTRAL
IBERVILLE AND SOUTH CENTRAL EAST BATON ROUGE PARISHES...

At 254 PM CDT, a strong thunderstorm was located near Plaquemine,
moving east at 25 mph.

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

Locations impacted include...
Baton Rouge, Denham Springs, Plaquemine, Oak Hills Place, St.
Gabriel, Walker, Addis, Brusly, French Settlement, Port Vincent,
Westminster, Old Jefferson, Inniswold, Prairieville, Village St.
George, Shenandoah and Gardere.

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

LAT...LON 3021 9123 3038 9128 3055 9080 3028 9071
TIME...MOT...LOC 1954Z 256DEG 23KT 3032 9120