SPC Tornado Watch 419



WW 419 TORNADO AR LA MS CW 010405Z – 011200Z

WW 0419 Image

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 419
NWS Storm Prediction Center Norman OK
1105 PM CDT Wed Oct 31 2018

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Southeast Arkansas
  Southeast Louisiana
  Mississippi
  Coastal Waters

* Effective this Wednesday night and Thursday morning from 1105
  PM until 700 AM CDT.

* Primary threats include...
  A few tornadoes and a couple intense tornadoes possible
  Scattered damaging wind gusts to 70 mph possible

SUMMARY...In advance of an approaching upper-level trough, low-level
moistening will continue to occur across the region along with
continually strengthening low-level shear. This will be conducive
for a mixed convective mode including linearly related bowing
segments along with some supercells along/ahead of the convective
line. The potential exists for damaging winds and tornadoes, a
couple of which could be strong, through the early morning hours of
Thursday.

The tornado watch area is approximately along and 75 statute miles
east and west of a line from 40 miles northeast of Greenwood MS to
15 miles east of Houma LA. For a complete depiction of the watch see
the associated watch outline update (WOUS64 KWNS WOU9).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A Tornado Watch means conditions are favorable for
tornadoes and severe thunderstorms in and close to the watch
area. Persons in these areas should be on the lookout for
threatening weather conditions and listen for later statements
and possible warnings.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 417...WW 418...

AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 1.5 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 24040.

...Guyer

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