Tornado Watch 109

Issued

Apr 2, 2017, 10:39 AM CDT (15:39 UTC)

Expired

Apr 2, 2017, 3:51 PM CDT

In force

5 hr

Issued by

the Storm Prediction Center

Largest hail expected

2.5 in

Strongest gust expected

65 kt

The Shreveport radar (KSHV), 80 km from the middle of the area, began a volume at 15:41 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

90%

One or more EF2 to EF5 tornadoes

70%

Ten or more severe wind reports

50%

One or more gusts of 65 knots or more

30%

Ten or more severe hail reports

70%

One or more hailstones of 2 inches or more

50%

Six or more combined severe hail and wind reports

95%

• Mesoscale Discussion 399Apr 2, 9:04 AM CDT
• Mesoscale Discussion 401Apr 2, 9:44 AM CDT
• Mesoscale Discussion 402Apr 2, 12:22 PM CDT
• Mesoscale Discussion 404Apr 2, 2:06 PM CDT
• Mesoscale Discussion 406Apr 2, 3:13 PM CDT

134 
WWUS20 KWNS 021534
SEL9  
SPC WW 021534
LAZ000-TXZ000-022300-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 109
NWS Storm Prediction Center Norman OK
1035 AM CDT Sun Apr 2 2017

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Northern and Central Louisiana
  East and Southeast Texas

* Effective this Sunday morning and evening from 1035 AM until
  600 PM CDT.

* Primary threats include...
  Several tornadoes and a couple intense tornadoes likely
  Scattered large hail likely with isolated very large hail events
    to 2.5 inches in diameter possible
  Scattered damaging winds and isolated significant gusts to 75
    mph possible

SUMMARY...Scattered thunderstorms will continue to affect the watch
area this afternoon and evening.  The environment is very favorable
for supercells capable of tornadoes in those storms that form in the
warm/humid air.

The tornado watch area is approximately along and 70 statute miles
north and south of a line from 20 miles south of Monroe LA to 30
miles west southwest of Huntsville TX. 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 108...

AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 2.5 inches. Extreme turbulence and surface wind
gusts to 65 knots. A few cumulonimbi with maximum tops to 550. Mean
storm motion vector 24035.

...Hart

Tornado Watches in Texas, 2017Tornado 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.