MIL-OSI USA: SPC Severe Thunderstorm Watch 405

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Source: US National Oceanic and Atmospheric Administration

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.Note: Click for Watch Status Reports.

Severe Thunderstorm Watch Number 405
NWS Storm Prediction Center Norman OK
330 PM CDT Wed Jun 12 2024

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of
northern and central Minnesota
eastern North Dakota
far northeastern South Dakota
northwestern Wisconsin
Lake Superior

* Effective this Wednesday afternoon and evening from 330 PM
until 1000 PM CDT.

* Primary threats include…
Widespread large hail and isolated very large hail events to 3
inches in diameter likely
Scattered damaging winds likely with isolated significant gusts
to 75 mph possible
A tornado or two possible

SUMMARY…Thunderstorm development is expected by 4:30 PM or so
across the eastern North Dakota/northwestern Minnesota area, with
storms quickly becoming severe. Very large/destructive hail, and
strong/damaging wind gusts are expected, with a tornado or two also

The severe thunderstorm watch area is approximately along and 90
statute miles north and south of a line from 40 miles north of Fargo
ND to 35 miles east of Duluth MN. For a complete depiction of the
watch see the associated watch outline update (WOUS64 KWNS WOU5).


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


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