Lake Effect Snow
What is it?
Formation
-
Tornadoes
Organization
Favored Areas
-
Grotonweather.com
Prediction
Impacts
Safety
What is Lake Effect?
• Snow created by
warm lake waters
interacting with cold
winds
• Responsible for much
of our snow
– Other snow comes
from storm systems
• Tends to be a very
localized event
Same location, 6 hours apart…look at the tree!
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Lake Effect Snow
What is it?
Formation
-
Tornadoes
Organization
Favored Areas
-
Grotonweather.com
Prediction
Impacts
Safety
Formation
• Driven by temperature
differences
– Differences force air
upward
– Similar to
thunderstorms
• Winds
– transport moisture
inland
– allow system to
continue
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Lake Effect Snow
Formation
Tornado Alleys
Tornadoes
-
In New York?
Grotonweather.com
April 27-28, 2011
Safety
Formation
• Tornadoes form in
very few, rotating
thunderstorms
• Start as funnel cloud
– Doesn’t become a
tornado until it
touches the ground!
• Mature stage
– Sometimes very large
• Dissipation
– Usually becomes a
thin rope
www.grotonweather.com
Lake Effect Snow
Formation
Tornado Alleys
Tornadoes
In New York?
-
Grotonweather.com
April 27-28, 2011
Safety
Tornado or Not?
www.grotonweather.com
Lake Effect Snow
Formation
Tornado Alleys
Tornadoes
In New York?
-
Grotonweather.com
April 27-28, 2011
Safety
April 26-28, 2011
• Included of the worst
tornado outbreaks on
record
• Communities wiped
off the map in the
Deep South
• Tornadoes in
Chemung (1*),
Chenango (3*),
Oneida (1), Otsego
(1), Steuben (1) and
Tompkins (1*)
counties
* after midnight!
www.grotonweather.com
Lake Effect Snow
Groundhog Day
-
Tornadoes
-
Groundhog Accuracy
-
Grotonweather.com
-
Grotonweather
FULL PRESENTATION NOT
AVAILABLE
• This is only a small portion of this
presentation, meant to serve as an example.
• Please contact me today if interested in
scheduling a presentation!
• (607) 351-1488
www.grotonweather.com