Tornado Watch 113

Issued

Apr 2, 2017, 8:24 PM CDT (01:24 UTC)

Expired

Apr 3, 2017, 2:00 AM CDT

In force

6 hr

Issued by

the Storm Prediction Center

Largest hail expected

1.5 in

Strongest gust expected

65 kt

Counties Acadia Parish, LA, Allen Parish, LA, Avoyelles Parish, LA, Beauregard Parish, LA, Calcasieu Parish, LA, Cameron Parish, LA, Evangeline Parish, LA, Iberia Parish, LA, Jefferson Davis Parish, LA, Lafayette Parish, LA, Rapides Parish, LA, Saint Landry Parish, LA, Saint Martin Parish, LA, St. Mary Parish, LA, Vermilion Parish, LA, Vernon Parish, LA

The Lake Charles radar (KLCH), 66 km from the middle of the area, began a volume at 01:28 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Two or more tornadoes

60%

One or more EF2 to EF5 tornadoes

30%

Ten or more severe wind reports

40%

One or more gusts of 65 knots or more

30%

Ten or more severe hail reports

20%

One or more hailstones of 2 inches or more

5%

Six or more combined severe hail and wind reports

60%

• Mesoscale Discussion 410Apr 2, 5:54 PM CDT
• Mesoscale Discussion 411Apr 2, 8:07 PM CDT
• Mesoscale Discussion 413Apr 2, 11:37 PM CDT

533 
WWUS20 KWNS 030120
SEL3  
SPC WW 030120
LAZ000-CWZ000-030700-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 113
NWS Storm Prediction Center Norman OK
820 PM CDT Sun Apr 2 2017

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  South-central and southwestern Louisiana
  Coastal Waters

* Effective this Sunday night and Monday morning from 820 PM
  until 200 AM CDT.

* Primary threats include...
  A few tornadoes likely with a couple intense tornadoes possible
  Scattered damaging winds and isolated significant gusts to 75
    mph possible
  Isolated large hail events to 1.5 inches in diameter possible

SUMMARY...A band of thunderstorms is expected to reorient more
north-south and begin to progress eastward over the watch area
tonight, offering damaging gusts and the risk for embedded
tornadoes.  The potential still exists for tornadic supercells ahead
of the line as well.  See SPC mesoscale discussion 411 for initial
meteorological details.  This effectively replaces tornado watch 110
in the Lake Charles WFO warning area.

The tornado watch area is approximately along and 55 statute miles
either side of a line from 30 miles west of Intracoastal City LA to
60 miles east northeast of Fort Polk LA. For a complete depiction of
the watch see the associated watch outline update (WOUS64 KWNS
WOU3).

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 110...WW 111...WW 112...

AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 1.5 inches. Extreme turbulence and surface wind
gusts to 65 knots. A few cumulonimbi with maximum tops to 550. Mean
storm motion vector 24030.

...Edwards

Tornado Watches in Louisiana, 2017Every tornado watch in 2017

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.