ACUS11 KWNS 180704
SWOMCD
SPC MCD 180704=20
MSZ000-LAZ000-180900-

Mesoscale Discussion 1176
NWS Storm Prediction Center Norman OK
0204 AM CDT Thu Jun 18 2026

Areas affected...Southern portions of Louisiana and Mississippi

Concerning...Tornado Watch 348...

Valid 180704Z - 180900Z

The severe weather threat for Tornado Watch 348 continues.

SUMMARY...The potential for tornadoes will continue to focus
primarily across southeast Louisiana near/to the south of I-12/I-10
over the next several hours (predawn).

DISCUSSION...Related to Post-Tropical Cyclone Arthur, regional
WSR-88D data indicate a continued strengthening of
south-southwesterly winds (30-40 kt) in the lowest 1-2 km AGL across
southern portions of Louisiana and Mississippi. This same trend is
expected to continue through the early morning hours with a further strengthening and gradual east-northeastward expansion of the
stronger low-level wind field. The most buoyant low-level air mass
will tend to stay relegated to within 50-75 miles of the southern
Louisiana coast over the next several hours, with this being the
primary area for tornado potential in the predawn hours.

..Guyer.. 06/18/2026

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!-W9ayCB3p4aLEzBMIkk0TIEXQam3O9SUljlRiGZiQpZWMLqEeoQu3yurVbXzIfONthVGNiPzQ= eGZISs2r6-_HrlMBRU$ for graphic product...

ATTN...WFO...MOB...JAN...LIX...LCH...

LAT...LON 29179176 30659097 31029005 30978921 30518887 29368910
28858949 28789061 29179176=20

MOST PROBABLE PEAK TORNADO INTENSITY...85-110 MPH
MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH


=3D =3D =3D
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