Severe Thunderstorm Watch 316

Issued

Jun 25, 2021, 2:07 PM MDT (20:07 UTC)

Expired

Jun 25, 2021, 8:00 PM MDT

In force

6 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

60 kt

The Grand Island radar (KUEX), 80 km from the middle of the area, began a volume at 20:07 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

10%

One or more EF2 to EF5 tornadoes

5%

Ten or more severe wind reports

40%

One or more gusts of 65 knots or more

10%

Ten or more severe hail reports

70%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

90%

• Mesoscale Discussion 1093 Severe potential...watch possibleJun 25, 12:21 PM MDT
• Mesoscale Discussion 1094 Severe potential...watch likelyJun 25, 1:11 PM MDT
• Mesoscale Discussion 1099 Severe thunderstorm watch 316Jun 25, 4:54 PM MDT

593 
WWUS20 KWNS 252003
SEL6  
SPC WW 252003
COZ000-KSZ000-NEZ000-260200-

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 316
NWS Storm Prediction Center Norman OK
305 PM CDT Fri Jun 25 2021

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Eastern Colorado
  Northwest Kansas
  Southwest/Central Nebraska

* Effective this Friday afternoon and evening from 305 PM until
  900 PM CDT.

* Primary threats include...
  Scattered large hail likely with isolated very large hail events
    to 2 inches in diameter possible
  Scattered damaging wind gusts to 70 mph possible

SUMMARY...Strong to severe thunderstorms will continue to develop
across the region this afternoon, initially across
northeast/east-central Colorado into southwest/south-central
Nebraska and northwest Kansas. Moderate instability/deep-layer shear
will support severe storms capable of hail/wind.

The severe thunderstorm watch area is approximately along and 105
statute miles east and west of a line from 55 miles west northwest
of Columbus NE to 50 miles south southeast of Burlington CO. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU6).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for 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. Severe thunderstorms can and occasionally do produce
tornadoes.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 314...WW 315...

AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
30025.

...Guyer

Severe Thunderstorm Watches in Nebraska, 2021Severe Thunderstorm Watches in Kansas, 2021Severe Thunderstorm Watches in Colorado, 2021Every severe thunderstorm watch in 2021

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.