Storm Prediction Center Severe Thunderstorm Watch 422
4 min read
2 months ago
Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended. Note: Click for Watch Status Reports.
SEL2
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 422
NWS Storm Prediction Center Norman OK
955 PM MDT Sun Jun 15 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Western into Central North Dakota
* Effective this Sunday night and Monday morning from 955 PM
until 400 AM MDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 85
mph likely
Isolated large hail events to 1.5 inches in diameter possible
SUMMARY...Clusters of severe thunderstorms are forecast to move east
into the Watch tonight from eastern Montana. A couple of supercells
may pose a threat for large hail, but the primary hazard will be
severe gusts with linear bands and clusters of thunderstorms.
Severe gusts peaking into the 75-85 mph range are possible with the
more intense outflow surges and thunderstorm downdrafts.
The severe thunderstorm watch area is approximately along and 75
statute miles east and west of a line from 65 miles northwest of
Minot ND to 10 miles east southeast of Lemmon SD. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU2).
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 418...WW 419...WW
420...WW 421...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 75 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
27045.
...Smith
SEL2
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 422
NWS Storm Prediction Center Norman OK
955 PM MDT Sun Jun 15 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Western into Central North Dakota
* Effective this Sunday night and Monday morning from 955 PM
until 400 AM MDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 85
mph likely
Isolated large hail events to 1.5 inches in diameter possible
SUMMARY...Clusters of severe thunderstorms are forecast to move east
into the Watch tonight from eastern Montana. A couple of supercells
may pose a threat for large hail, but the primary hazard will be
severe gusts with linear bands and clusters of thunderstorms.
Severe gusts peaking into the 75-85 mph range are possible with the
more intense outflow surges and thunderstorm downdrafts.
The severe thunderstorm watch area is approximately along and 75
statute miles east and west of a line from 65 miles northwest of
Minot ND to 10 miles east southeast of Lemmon SD. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU2).
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 418...WW 419...WW
420...WW 421...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 75 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
27045.
...Smith
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW2
WW 422 SEVERE TSTM ND 160355Z - 161000Z
AXIS..75 STATUTE MILES EAST AND WEST OF LINE..
65NW MOT/MINOT ND/ - 10ESE Y22/LEMMON SD/
..AVIATION COORDS.. 65NM E/W /57NW MOT - 49NNW DPR/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..75 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 27045.
LAT...LON 48920064 45860042 45860354 48920394
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU2.
Watch 422 Status Report Message has not been issued yet.
Probability of 1 or more strong (EF2-EF5) tornadoes
Low (<2%)
Wind
Probability of 10 or more severe wind events
High (70%)
Probability of 1 or more wind events > 65 knots
Mod (60%)
Hail
Probability of 10 or more severe hail events
Low (20%)
Probability of 1 or more hailstones > 2 inches
Low (20%)
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
High (90%)
For each watch, probabilities for particular events inside the watch
(listed above in each table) are determined by the issuing forecaster.
The “Low” category contains probability values ranging from less than 2%
to 20% (EF2-EF5 tornadoes), less than 5% to 20% (all other probabilities),
“Moderate” from 30% to 60%, and “High” from 70% to greater than 95%.
High values are bolded and lighter in color to provide awareness of
an increased threat for a particular event.
