Weather Alert in New York
Flood Watch issued March 10 at 1:50PM EDT until March 12 at 2:00PM EDT by NWS Burlington VT
AREAS AFFECTED: Northern St. Lawrence; Northern Franklin; Eastern Clinton; Southeastern St. Lawrence; Southern Franklin; Western Clinton; Western Essex; Eastern Essex; Southwestern St. Lawrence; Grand Isle; Western Franklin; Orleans; Essex; Western Chittenden; Lamoille; Caledonia; Washington; Western Addison; Orange; Western Rutland; Eastern Franklin; Eastern Chittenden; Eastern Addison; Eastern Rutland; Western Windsor; Eastern Windsor
DESCRIPTION: Warm temperatures may melt snowpack and increase river flows. * WHAT...Flooding caused by rain and/or snowmelt and/or ice jam continues to be possible. * WHERE...All of northern New York and northern and central Vermont. * WHEN...Through Thursday afternoon. * IMPACTS...Excessive runoff from snowmelt and rainfall will cause sharp river rises, likely resulting in river ice break up. Ice jams will be possible, along with rapid onset flooding. Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations will be possible and creeks and streams may rise out of their banks. * ADDITIONAL DETAILS... - Mild temperatures will lead to rapid rises on area rivers through early this week. This will be followed by widespread rain Wednesday into Thursday. Rising rivers will cause river ice to break up and flow, potentially resulting in ice jams and associated flooding. As rain moves in Wednesday, the threat will turn more toward open water flooding for those waterways that have lost their ice. Any open water flooding will likely persist through Thursday. - http://www.weather.gov/safety/flood
INSTRUCTION: You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
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Weather Topic: What are Shelf Clouds?
Home - Education - Cloud Types - Shelf Clouds
Next Topic: Sleet
A shelf cloud is similar to a wall cloud, but forms at the front
of a storm cloud, instead of at the rear, where wall clouds form.
A shelf cloud is caused by a series of events set into motion by the advancing
storm; first, cool air settles along the ground where precipitation has just fallen.
As the cool air is brought in, the warmer air is displaced, and rises above it,
because it is less dense. When the warmer air reaches the bottom of the storm cloud,
it begins to cool again, and the resulting condensation is a visible shelf cloud.
Next Topic: Sleet
Weather Topic: What is Snow?
Home - Education - Precipitation - Snow
Next Topic: Stratocumulus Clouds
Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake,
has unique characteristics, but all of them grow in a hexagonal structure.
Snowfall can last for sustained periods of time and result in significant buildup
of snow on the ground.
On the earth's surface, snow starts out light and powdery, but as it begins to melt
it tends to become more granular, producing small bits of ice which have the consistency of
sand. After several cycles of melting and freezing, snow can become very dense
and ice-like, commonly known as snow pack.
Next Topic: Stratocumulus Clouds
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