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Severe Thunderstorm Watch 315
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WW0315 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Low
Severe Wind 65 kt+ Wind
Moderate Low
Severe Hail 2"+ Hail
Low Very Low

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL5

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 315
   NWS Storm Prediction Center Norman OK
   800 PM CDT Sun Jun 11 2017

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     South-central Upper Michigan
     North-central and northeastern Wisconsin
     Lake Michigan

   * Effective this Sunday night and Monday morning from 800 PM
     until 300 AM CDT.

   * Primary threats include...
     Isolated damaging wind gusts to 70 mph possible
     Isolated large hail events to 1.5 inches in diameter possible
     A tornado or two possible

   SUMMARY...A slowly organizing band of strong-severe thunderstorms
   will move eastward across the watch area as the air mass
   destabilizes north of a retreating outflow boundary.  Activity
   occasionally will produce damaging gusts and severe hail.  A tornado
   or two cannot be ruled out, but the threat is very
   conditional/short-lived given the messy convective mode.

   The severe thunderstorm watch area is approximately along and 95
   statute miles east and west of a line from 15 miles southeast of
   Mosinee WI to 15 miles north northeast of Iron Mountain MI. For a
   complete depiction of the watch see the associated watch outline
   update (WOUS64 KWNS WOU5).

   PRECAUTIONARY/PREPAREDNESS ACTIONS...

   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
   tornadoes.

   &&

   AVIATION...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 550. Mean storm motion vector
   27030.

   ...Edwards
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Page last modified: June 12, 2017
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