Tornado Watch 322

Issued

Jul 29, 2018, 1:07 PM MDT (19:07 UTC)

Expired

Jul 29, 2018, 9:00 PM MDT

In force

8 hr

Issued by

the Storm Prediction Center

Largest hail expected

3.5 in

Strongest gust expected

70 kt

The Cheyenne radar (KCYS), 112 km from the middle of the area, began a volume at 19:08 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

30%

Ten or more severe wind reports

50%

One or more gusts of 65 knots or more

50%

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

90%

• Mesoscale Discussion 1194Jul 29, 12:46 PM MDT
• Mesoscale Discussion 1195Jul 29, 1:12 PM MDT
• Mesoscale Discussion 1196Jul 29, 2:20 PM MDT
• Mesoscale Discussion 1198Jul 29, 4:07 PM MDT
• Mesoscale Discussion 1199Jul 29, 5:23 PM MDT

572 
WWUS20 KWNS 291904
SEL2  
SPC WW 291904
COZ000-KSZ000-NEZ000-WYZ000-300300-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 322
NWS Storm Prediction Center Norman OK
105 PM MDT Sun Jul 29 2018

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Eastern Colorado
  Northwest Kansas
  Nebraska Panhandle
  Southeast Wyoming

* Effective this Sunday afternoon and evening from 105 PM until
  900 PM MDT.

* Primary threats include...
  A few tornadoes likely with a couple intense tornadoes possible
  Scattered large hail and isolated very large hail events to 3.5
    inches in diameter likely
  Scattered damaging winds and isolated significant gusts to 80
    mph possible

SUMMARY...Scattered discrete supercells should evolve southeast from
southeast Wyoming and may develop into a cluster near the
Colorado/Kansas border this evening. All hazards are anticipated.

The tornado watch area is approximately along and 75 statute miles
east and west of a line from 50 miles north northwest of Torrington
WY to 55 miles south southwest of Burlington CO. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU2).

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 3.5 inches. Extreme turbulence and surface wind
gusts to 70 knots. A few cumulonimbi with maximum tops to 550. Mean
storm motion vector 31035.

...Grams

Tornado Watches in Colorado, 2018Tornado Watches in Nebraska, 2018Tornado Watches in Wyoming, 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.