Weather Alert in New York
Coastal Flood Warning issued August 21 at 4:55AM EDT until August 22 at 3:00AM EDT by NWS Upton NY
AREAS AFFECTED: Northeast Suffolk
DESCRIPTION: * WHAT...For the Coastal Flood Warning, up to 2 ft of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. For the Coastal Flood Advisory, around 1 ft of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Northeast Suffolk County. * WHEN...For the Coastal Flood Warning, from 5 PM today to 3 AM EDT Friday. For the Coastal Flood Advisory, from 5 AM to 2 PM EDT Friday. * COASTAL FLOOD IMPACTS...Widespread minor to locally moderate flooding of vulnerable areas near the waterfront and shoreline with this evening's high tide. Expect 1 1/2 to 2 ft of inundation above ground level in low lying, vulnerable areas, particularly near Orient Point and the Peconic River. This will result in several road closures and cause flooding of low lying property including parking lots, parks, lawns and homes/businesses with basements near the waterfront. Vehicles parked in vulnerable areas near the waterfront will likely become flooded. * SHORELINE IMPACTS...Along Orient point, 3 to 5 ft breaking waves will result in beach erosion and locally moderate flooding of shoreline roads and properties during this evening's high tide.
INSTRUCTION: Take the necessary actions to protect flood-prone property. If travel is required, do not drive around barricades or through water of unknown depth.
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Weather Topic: What is Precipitation?
Home - Education - Precipitation - Precipitation
Next Topic: Rain
Precipitation can refer to many different forms of water that
may fall from clouds. Precipitation occurs after a cloud has become saturated to
the point where its water particles are more dense than the air below the cloud.
In most cases, precipitation will reach the ground, but it is not uncommon for
precipitation to evaporate before it reaches the earth's surface.
When precipitation evaporates before it contacts the ground it is called Virga.
Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog
and mist are not considered precipitation because the water vapor which
constitutes them isn't dense enough to fall to the ground.
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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.
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