Storm Prediction Center Severe Thunderstorm Watch 414
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.
SEL4
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 414
NWS Storm Prediction Center Norman OK
240 PM MDT Sat Jun 14 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northeast Colorado
The Nebraska Panhandle
Extreme southwest South Dakota
Eastern Wyoming
* Effective this Saturday afternoon and evening from 240 PM until
900 PM MDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
SUMMARY...A few thunderstorm clusters, and potentially a couple of
supercells, are expected to form and spread eastward from eastern
Wyoming into the Nebraska Panhandle and adjacent parts of far
southwest South Dakota and northeast Colorado through late evening.
Large hail of 1-2 inches in diameter and severe outflow gusts of
60-70 mph will be the main threats.
The severe thunderstorm watch area is approximately along and 60
statute miles east and west of a line from 25 miles north northeast
of Gillette WY to 60 miles southwest of Sidney NE. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU4).
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
27020.
...Thompson
SEL4
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 414
NWS Storm Prediction Center Norman OK
240 PM MDT Sat Jun 14 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northeast Colorado
The Nebraska Panhandle
Extreme southwest South Dakota
Eastern Wyoming
* Effective this Saturday afternoon and evening from 240 PM until
900 PM MDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
SUMMARY...A few thunderstorm clusters, and potentially a couple of
supercells, are expected to form and spread eastward from eastern
Wyoming into the Nebraska Panhandle and adjacent parts of far
southwest South Dakota and northeast Colorado through late evening.
Large hail of 1-2 inches in diameter and severe outflow gusts of
60-70 mph will be the main threats.
The severe thunderstorm watch area is approximately along and 60
statute miles east and west of a line from 25 miles north northeast
of Gillette WY to 60 miles southwest of Sidney NE. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU4).
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
27020.
...Thompson
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW4
WW 414 SEVERE TSTM CO NE SD WY 142040Z - 150300Z
AXIS..60 STATUTE MILES EAST AND WEST OF LINE..
25NNE GCC/GILLETTE WY/ - 60SW SNY/SIDNEY NE/
..AVIATION COORDS.. 50NM E/W /63NE CZI - 34NW AKO/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 27020.
LAT...LON 44680411 40480265 40480493 44680656
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU4.
Watch 414 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
Mod (40%)
Probability of 1 or more wind events > 65 knots
Low (20%)
Hail
Probability of 10 or more severe hail events
Mod (40%)
Probability of 1 or more hailstones > 2 inches
Mod (30%)
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
High (70%)
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.
