The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Click for Watch Status Reports
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 252
NWS Storm Prediction Center Norman OK
155 PM EDT Fri May 20 2022
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northern Lower Michigan
* Effective this Friday afternoon and evening from 155 PM until
700 PM EDT.
* 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
A tornado or two possible
SUMMARY...A line of thunderstorms over Lake Michigan will track
quickly eastward this afternoon across northern Lower Michigan. The
stronger cells along the line will pose a risk of locally damaging
wind gusts and large hail. An isolated tornado or two is also
The severe thunderstorm watch area is approximately along and 70
statute miles east and west of a line from 35 miles southwest of
Houghton Lake MI to 35 miles east northeast of Sault Ste Marie MI.
For a complete depiction of the watch see the associated watch
outline update (WOUS64 KWNS WOU2).
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 251...
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