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URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 16
NWS Storm Prediction Center Norman OK
240 PM CST Wed Mar 10 2021
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
central and northeastern Iowa
a small portion of west central Wisconsin
* Effective this Wednesday afternoon and evening from 240 PM
until 800 PM CST.
* Primary threats include...
A couple tornadoes possible
Scattered damaging wind gusts to 70 mph possible
Scattered large hail events to 1.5 inches in diameter possible
SUMMARY...Scattered severe thunderstorms are expected to develop by
late this afternoon. This may include a few supercells with the
potential to produce tornadoes, before a broken squall line evolves
and advances eastward with damaging wind gusts likely becoming the
primary severe hazard this evening.
The tornado watch area is approximately along and 70 statute miles
east and west of a line from 25 miles north northeast of Rochester
MN to 5 miles southeast of Des Moines IA. For a complete depiction
of the watch see the associated watch outline update (WOUS64 KWNS
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 1.5 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 400. Mean
storm motion vector 23040.