Tornado Watch 180

Issued

Jun 16, 2018, 3:38 PM CDT (20:38 UTC)

Expired

Jun 17, 2018, 12:00 AM CDT

In force

8 hr

Issued by

the Storm Prediction Center

Largest hail expected

3 in

Strongest gust expected

65 kt

The Aberdeen radar (KABR), 100 km from the middle of the area, began a volume at 20:40 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

50%

Ten or more severe wind reports

60%

One or more gusts of 65 knots or more

30%

Ten or more severe hail reports

60%

One or more hailstones of 2 inches or more

60%

Six or more combined severe hail and wind reports

95%

• Mesoscale Discussion 752Jun 16, 3:06 PM CDT
• Mesoscale Discussion 757Jun 16, 6:21 PM CDT
• Mesoscale Discussion 759Jun 16, 9:01 PM CDT
• Mesoscale Discussion 762Jun 16, 10:17 PM CDT
• Mesoscale Discussion 763Jun 16, 11:44 PM CDT

556 
WWUS20 KWNS 162037
SEL0  
SPC WW 162037
MNZ000-NDZ000-SDZ000-170500-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 180
NWS Storm Prediction Center Norman OK
340 PM CDT Sat Jun 16 2018

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Western Minnesota
  Far southeast North Dakota
  Northeast South Dakota

* Effective this Saturday afternoon from 340 PM until Midnight
  CDT.

* Primary threats include...
  A few tornadoes likely with a couple intense tornadoes possible
  Scattered large hail and isolated very large hail events to 3
    inches in diameter likely
  Scattered damaging winds likely with isolated significant gusts
    to 75 mph possible

SUMMARY...Isolated to scattered thunderstorms should develop along a
nearly stationary front this evening. Environment is conducive to
intense storms as a few supercells likely evolve with all severe
hazards possible.

The tornado watch area is approximately along and 55 statute miles
north and south of a line from 40 miles south southwest of Aberdeen
SD to 35 miles east northeast of Alexandria MN. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU0).

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.

&&

AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 3 inches. Extreme turbulence and surface wind
gusts to 65 knots. A few cumulonimbi with maximum tops to 550. Mean
storm motion vector 25025.

...Grams

Tornado Watches in Minnesota, 2018Tornado Watches in South Dakota, 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.