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URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 406
NWS Storm Prediction Center Norman OK
940 PM CDT Sun Jul 9 2017
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Parts of southwestern and southeastern Minnesota
* Effective this Sunday night and Monday morning from 940 PM
until 300 AM CDT.
* 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...Clusters of supercells in Minnesota will continue to move
toward the south-southeast overnight, with a continued threat for
large hail and damaging winds. Some upscale growth of the storms
will be possible, which will tend to favor some increase in the
potential for damaging winds.
The severe thunderstorm watch area is approximately along and 45
statute miles north and south of a line from 5 miles north of
Spencer IA to 45 miles south of La Crosse WI. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU6).
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
OTHER WATCH INFORMATION...CONTINUE...WW 405...
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 550. Mean storm motion vector