Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended. Note: Click for Watch Status Reports.
SEL0
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 180
NWS Storm Prediction Center Norman OK
1230 PM CDT Mon Apr 28 2025
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Northwest Iowa
Southwest Minnesota
Extreme Southeast South Dakota
* Effective this Monday afternoon and evening from 1230 PM until
800 PM CDT.
* Primary threats include...
A few tornadoes likely with a couple intense tornadoes possible
Widespread large hail and scattered very large hail events to 3
inches in diameter likely
Scattered damaging winds likely with isolated significant gusts
to 80 mph possible
SUMMARY...Isolated to scattered thunderstorms developing along a
surface front will develop east/northeast through the afternoon.
These storms will have the potential to produce large to very large
hail, damaging wind gusts, and a few tornadoes.
The tornado watch area is approximately along and 40 statute miles
east and west of a line from 85 miles north of Redwood Falls MN to
30 miles west of Storm Lake IA. For a complete depiction of the
watch see the associated watch outline update (WOUS64 KWNS WOU0).
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 70 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 24035.
...Leitman
SEL0
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 180
NWS Storm Prediction Center Norman OK
1230 PM CDT Mon Apr 28 2025
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Northwest Iowa
Southwest Minnesota
Extreme Southeast South Dakota
* Effective this Monday afternoon and evening from 1230 PM until
800 PM CDT.
* Primary threats include...
A few tornadoes likely with a couple intense tornadoes possible
Widespread large hail and scattered very large hail events to 3
inches in diameter likely
Scattered damaging winds likely with isolated significant gusts
to 80 mph possible
SUMMARY...Isolated to scattered thunderstorms developing along a
surface front will develop east/northeast through the afternoon.
These storms will have the potential to produce large to very large
hail, damaging wind gusts, and a few tornadoes.
The tornado watch area is approximately along and 40 statute miles
east and west of a line from 85 miles north of Redwood Falls MN to
30 miles west of Storm Lake IA. For a complete depiction of the
watch see the associated watch outline update (WOUS64 KWNS WOU0).
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 70 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 24035.
...Leitman
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW0
WW 180 TORNADO IA MN SD 281730Z - 290100Z
AXIS..40 STATUTE MILES EAST AND WEST OF LINE..
85N RWF/REDWOOD FALLS MN/ - 30W SLB/STORM LAKE IA/
..AVIATION COORDS.. 35NM E/W /56SW BRD - 68W FOD/
HAIL SURFACE AND ALOFT..3 INCHES. WIND GUSTS..70 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 24035.
LAT...LON 45789425 42609503 42609661 45789591
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU0.
Watch 180 Status Report Message has not been issued yet.
Probability of 1 or more strong (EF2-EF5) tornadoes
Mod (50%)
Wind
Probability of 10 or more severe wind events
Mod (60%)
Probability of 1 or more wind events > 65 knots
Mod (30%)
Hail
Probability of 10 or more severe hail events
High (80%)
Probability of 1 or more hailstones > 2 inches
High (80%)
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
High (>95%)
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.
