RSS Mesoscale Discussions from Storm Prediction Center
WW 357 TORNADO CO KS NE 201950Z - 210300Z

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 357
NWS Storm Prediction Center Norman OK
150 PM MDT Sat Jun 20 2026
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Northeast Colorado
Northwest Kansas
Southern Nebraska Panhandle
* Effective this Saturday afternoon and evening from 150 PM until
900 PM MDT.
* Primary threats include...
A couple tornadoes possible
Scattered large hail and isolated very large hail events to 3
inches in diameter likely
Scattered damaging wind gusts to 70 mph likely
SUMMARY...Thunderstorms will rapidly intensify along a boundary from
northeast Colorado into southwest Nebraska this afternoon.
Supercells capable of very large hail, damaging winds, and a few
tornadoes are possible.
The tornado watch area is approximately along and 70 statute miles
north and south of a line from 20 miles west northwest of Akron CO
to 45 miles southeast of Mccook NE. For a complete depiction of the
watch see the associated watch outline update (WOUS64 KWNS WOU7).
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 356...
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 550. Mean
storm motion vector 27030.
...Hart
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WW 356 SEVERE TSTM NE SD WY 201925Z - 210300Z

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 356
NWS Storm Prediction Center Norman OK
125 PM MDT Sat Jun 20 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Nebraska Panhandle
Southwest South Dakota
Central and Eastern Wyoming
* Effective this Saturday afternoon and evening from 125 PM until
900 PM MDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph likely
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
A tornado or two possible
SUMMARY...Clusters of high-based thunderstorms will affect much of
central Wyoming this afternoon, capable of locally damaging wind
gusts. Other supercell storms capable of large hail and damaging
winds will be a concern over eastern Wyoming and the Nebraska
Panhandle later this afternoon.
The severe thunderstorm watch area is approximately along and 85
statute miles north and south of a line from 15 miles west southwest
of Lander WY to 40 miles east northeast of Scottsbluff NE. 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.
&&
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
26030.
...Hart
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WW 0357 Status Updates

STATUS FOR WATCH 0357 HAS NOT BEEN ISSUED YET
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WW 0356 Status Updates

STATUS FOR WATCH 0356 HAS NOT BEEN ISSUED YET
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