Storm Prediction Center Severe Thunderstorm Watch 247
4 min read
3 weeks 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.
SEL7
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 247
NWS Storm Prediction Center Norman OK
350 PM CDT Wed May 14 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Western and Central Nebraska
South-Central and Central South Dakota
* Effective this Wednesday afternoon and evening from 350 PM
until 1100 PM CDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 75
mph possible
Scattered large hail and isolated very large hail events to 3
inches in diameter possible
A tornado or two possible
SUMMARY...Thunderstorms should continue to gradually increase in
coverage and intensity this afternoon and evening. Supercells should
pose a threat for large to very large hail potentially up to 2-3
inches in diameter, especially across parts of western into central
Nebraska. Otherwise, scattered severe wind gusts may occur with any
clusters that eventually form. A tornado or two also appears
possible, mainly this evening.
The severe thunderstorm watch area is approximately along and 45
statute miles east and west of a line from 35 miles north of Pierre
SD to 25 miles east southeast of Imperial NE. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU7).
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
3 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
20030.
...Gleason
SEL7
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 247
NWS Storm Prediction Center Norman OK
350 PM CDT Wed May 14 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Western and Central Nebraska
South-Central and Central South Dakota
* Effective this Wednesday afternoon and evening from 350 PM
until 1100 PM CDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 75
mph possible
Scattered large hail and isolated very large hail events to 3
inches in diameter possible
A tornado or two possible
SUMMARY...Thunderstorms should continue to gradually increase in
coverage and intensity this afternoon and evening. Supercells should
pose a threat for large to very large hail potentially up to 2-3
inches in diameter, especially across parts of western into central
Nebraska. Otherwise, scattered severe wind gusts may occur with any
clusters that eventually form. A tornado or two also appears
possible, mainly this evening.
The severe thunderstorm watch area is approximately along and 45
statute miles east and west of a line from 35 miles north of Pierre
SD to 25 miles east southeast of Imperial NE. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU7).
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
3 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
20030.
...Gleason
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW7
WW 247 SEVERE TSTM NE SD 142050Z - 150400Z
AXIS..45 STATUTE MILES EAST AND WEST OF LINE..
35N PIR/PIERRE SD/ - 25ESE IML/IMPERIAL NE/
..AVIATION COORDS.. 40NM E/W /30N PIR - 29WNW MCK/
HAIL SURFACE AND ALOFT..3 INCHES. WIND GUSTS..65 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 20030.
LAT...LON 44889936 40380033 40380204 44880120
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU7.
Watch 247 Status Report Message has not been issued yet.
Probability of 1 or more strong (EF2-EF5) tornadoes
Low (10%)
Wind
Probability of 10 or more severe wind events
Mod (40%)
Probability of 1 or more wind events > 65 knots
Mod (30%)
Hail
Probability of 10 or more severe hail events
Mod (50%)
Probability of 1 or more hailstones > 2 inches
Mod (40%)
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
High (80%)
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.
