SPC Severe Thunderstorm Watch 179

WW 179 SEVERE TSTM MT ND SD 272235Z – 280600Z
WW 0179 Image

 URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 179
NWS Storm Prediction Center Norman OK
435 PM MDT Sun Apr 27 2025 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southeast Montana Southwest North Dakota Western South Dakota * Effective this Sunday afternoon from 435 PM until Midnight MDT. * Primary threats include... Scattered large hail and isolated very large hail events to 2 inches in diameter possible Isolated damaging wind gusts to 70 mph possible A tornado or two possible SUMMARY...Severe storm development is expected across the region
through the remainder of the afternoon into early/mid-evening, with
large hail expected to the most probable risk, with damaging winds
and possibly some/brief tornado risk as well. The severe thunderstorm watch area is approximately along and 80
statute miles east and west of a line from 45 miles west northwest
of Baker MT to 35 miles east southeast of Rapid City SD. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU9). 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 178... 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
24025. ...Guyer 

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SPC Tornado Watch 178

WW 178 TORNADO CO NE SD 272155Z – 280500Z
WW 0178 Image

 URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 178
NWS Storm Prediction Center Norman OK
355 PM MDT Sun Apr 27 2025 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Far Northeast Colorado Western Nebraska Southwest South Dakota * Effective this Sunday afternoon and evening from 355 PM until 1100 PM MDT. * Primary threats include... A couple tornadoes possible Scattered large hail and isolated very large hail events to 3 inches in diameter possible Isolated damaging wind gusts to 70 mph possible SUMMARY...Severe storms including supercells are expected this
evening, with very large hail possible as the main and initial
hazard. Tornado potential is expected to increase toward/after
sunset as additional low-level moistening occurs. Damaging winds are
also possible. The tornado watch area is approximately along and 70 statute miles
east and west of a line from 85 miles northeast of Chadron NE to 60
miles west southwest of North Platte NE. For a complete depiction of
the watch see the associated watch outline update (WOUS64 KWNS
WOU8). 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 60 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 23030. ...Guyer 

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