Tornado Watch 86

Issued

Mar 26, 2017, 4:02 PM CDT (21:02 UTC)

Expired

Mar 26, 2017, 10:53 PM CDT

In force

7 hr

Issued by

the Storm Prediction Center

Largest hail expected

3 in

Strongest gust expected

60 kt

The Norman radar (KTLX), 31 km from the middle of the area, began a volume at 21:05 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

50%

One or more EF2 to EF5 tornadoes

30%

Ten or more severe wind reports

40%

One or more gusts of 65 knots or more

20%

Ten or more severe hail reports

70%

One or more hailstones of 2 inches or more

60%

Six or more combined severe hail and wind reports

70%

• Mesoscale Discussion 333Mar 26, 1:24 PM CDT
• Mesoscale Discussion 335Mar 26, 2:49 PM CDT
• Mesoscale Discussion 336Mar 26, 5:13 PM CDT
• Mesoscale Discussion 337Mar 26, 6:33 PM CDT
• Mesoscale Discussion 338Mar 26, 7:15 PM CDT

146 
WWUS20 KWNS 262100
SEL6  
SPC WW 262100
OKZ000-TXZ000-270400-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 86
NWS Storm Prediction Center Norman OK
400 PM CDT Sun Mar 26 2017

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Oklahoma
  North-central Texas

* Effective this Sunday afternoon and evening from 400 PM until
  1100 PM CDT.

* Primary threats include...
  A few tornadoes and a couple intense tornadoes possible
  Scattered large hail and isolated very large hail events to 3
    inches in diameter likely
  Scattered damaging wind gusts to 70 mph possible

SUMMARY...Multiple corridors of supercell thunderstorms are expected
to develop and increase through the late afternoon and early evening
hours. Potentially very large hail will be the most common hazard,
but a tornado risk is also likely to increase by early evening as
low-level moisture continues to increase. The greatest overall
severe and tornado risk is expected across south-central/southeast
Oklahoma and north-central Texas.

The tornado watch area is approximately along and 85 statute miles
east and west of a line from 35 miles west northwest of Ponca City
OK to 15 miles southeast of Dallas TX. For a complete depiction of
the watch see the associated watch outline update (WOUS64 KWNS
WOU6).

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 85...

AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 3 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 23035.

...Guyer

Tornado Watches in Oklahoma, 2017Tornado Watches in Texas, 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.