Tornado Watch 41

Issued

Apr 13, 2018, 2:19 PM CDT (19:19 UTC)

Expired

Apr 13, 2018, 9:00 PM CDT

In force

7 hr

Issued by

the Storm Prediction Center

Largest hail expected

2.5 in

Strongest gust expected

60 kt

The Pleasant Hill radar (KEAX), 146 km from the middle of the area, began a volume at 19:18 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

70%

One or more EF2 to EF5 tornadoes

20%

Ten or more severe wind reports

60%

One or more gusts of 65 knots or more

20%

Ten or more severe hail reports

80%

One or more hailstones of 2 inches or more

70%

Six or more combined severe hail and wind reports

95%

• Mesoscale Discussion 239Apr 13, 2:06 PM CDT
• Mesoscale Discussion 243Apr 13, 5:31 PM CDT

537 
WWUS20 KWNS 131917
SEL1  
SPC WW 131917
IAZ000-KSZ000-MOZ000-NEZ000-140200-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 41
NWS Storm Prediction Center Norman OK
220 PM CDT Fri Apr 13 2018

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Southern Iowa
  Northeast Kansas
  Northwest Missouri
  Southeast Nebraska

* Effective this Friday afternoon and evening from 220 PM until
  900 PM CDT.

* Primary threats include...
  A few tornadoes likely
  Widespread large hail and isolated very large hail events to 2.5
    inches in diameter likely
  Scattered damaging wind gusts to 70 mph likely

SUMMARY...Thunderstorms developing over eastern Kansas will track
northeastward across the watch area, while other isolated cells form
over IA/northern MO.  Supercells capable of large hail and a few
tornadoes are expected.

The tornado watch area is approximately along and 65 statute miles
east and west of a line from 40 miles west northwest of Knoxville IA
to 60 miles south southwest of Olathe KS. For a complete depiction
of the watch see the associated watch outline update (WOUS64 KWNS
WOU1).

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 39...WW 40...

AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 2.5 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 450. Mean
storm motion vector 23035.

...Hart

Tornado Watches in Missouri, 2018Tornado Watches in Iowa, 2018Tornado Watches in Kansas, 2018Every tornado watch in 2018

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.