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URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 167
NWS Storm Prediction Center Norman OK
745 PM CDT Sat Jun 9 2018
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
* Effective this Saturday night and Sunday morning from 745 PM
until 200 AM CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph likely
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
A tornado or two possible
SUMMARY...Scattered intense thunderstorms will continue to develop
over eastern Iowa and track eastward across the watch area this
evening. Locally damaging winds are the main threat, with large
hail also possible in the strongest cells.
The severe thunderstorm watch area is approximately along and 50
statute miles north and south of a line from 30 miles west northwest
of Waterloo IA to 80 miles east southeast of Dubuque IA. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU7).
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 165...WW 166...
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 500. Mean storm motion vector