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Lake effect snow watch

Bulletin issued by the National Weather Service

Bulletin issued by the National Weather Service

A lake effect snow watch was a bulletin issued by the National Weather Service in the United States to warn of heavy snowfall amounts that will be possible from convective snow generated by cold air masses passing over unfrozen lakes (lake effect snow). The criteria for amounts may vary over different county warning areas.

On October 2, 2017, issuance of the Lake Effect Snow Watch has been discontinued, and a winter storm watch is now issued when the above criteria are expected to be met.

Example

MNZ020-037-181845- /O.NEW.KDLH.LE.A.0004.081219T0600Z-081220T0600Z/ SOUTHERN LAKE/LAKESHORE-CARLTON/SOUTHERN ST. LOUIS- 443 AM CST THU DEC 18 2008

...LAKE EFFECT SNOW WATCH IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY EVENING...

THE NATIONAL WEATHER SERVICE IN DULUTH HAS ISSUED A LAKE EFFECT SNOW WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY EVENING.)

LAKE EFFECT SNOW WILL DEVELOP AROUND MIDNIGHT TONIGHT...AND LAST THROUGH MUCH OF FRIDAY AND INTO FRIDAY EVENING. THE HEAVIEST OF THE SNOW WILL FALL ALONG THE HIGHER TERRAIN FROM DULUTH TO SILVER BAY...WHERE THE POTENTIAL EXISTS FOR UP TO 8 INCHES IN ISOLATED AREAS. THE HEAVIEST OF THE SNOW LOOKS TO FALL EARLY FRIDAY MORNING AROUND THE TIME OF THE MORNING COMMUTE.

A LAKE EFFECT SNOW WATCH MEANS THE POTENTIAL EXISTS FOR HEAVY ACCUMULATION OF LAKE-EFFECT SNOW. TRAVEL AND COMMERCE MAY BE SIGNIFICANTLY AFFECTED. YOU ARE ENCOURAGED TO STAY CURRENT WITH THE LATEST WEATHER INFORMATION REGARDING THIS DEVELOPING WINTER STORM VIA LOCAL TELEVISION...RADIO...THE INTERNET...OR NOAA WEATHER RADIO.

$$

LONKA

References

References

  1. [http://www.weather.gov/crh/hazsimplification National Weather Service Hazard Simplification] Retrieved 9 November 2017
  2. "WWA Summary by Location with MNZ037/MNC017/MNZ037 emphasis Lake Effect Snow Watch".
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