Weather Alert in Pennsylvania
Flood Advisory issued February 21 at 1:57AM EST until February 22 at 1:00PM EST by NWS Pittsburgh PA
AREAS AFFECTED: Allegheny, PA
DESCRIPTION: ...The Flood Advisory is extended for the following rivers in Pennsylvania... Ohio River At Pittsburgh affecting Allegheny County. Additional information is available at weather.gov/pbz. The next statement will be issued this afternoon at 200 PM EST. * WHAT...Flooding caused by rain and snowmelt continues. * WHERE...Ohio River at Pittsburgh. * WHEN...Until Sunday afternoon. * IMPACTS...At 18.0 feet, Water begins to flow onto the Monongahela Parking Wharf. At 19.0 feet, Water begins to flow onto the North Shore Riverwalk between the stadiums. At 19.5 feet, The Monongahela Parking Wharf is completely flooded. At 20.0 feet, Water is up to one foot deep in the lower areas of the North Shore Riverwalk. * ADDITIONAL DETAILS... - At 1:45 AM EST Saturday the stage was 18.8 feet. - Bankfull stage is 18.0 feet. - Forecast...The river is expected to rise to a crest of 19.5 feet this afternoon. - Action stage is 18.0 feet. - Flood stage is 22.0 feet. - http://www.weather.gov/safety/flood
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Weather Topic: What is Drizzle?
Home - Education - Precipitation - Drizzle
Next Topic: Evaporation
Drizzle is precipitation in the form of water droplets which are
smaller than raindrops.
Drizzle is characterized by fine, gently falling droplets and typically does not
impact human habitation in a negative way. The exception to this is freezing drizzle,
a condition where drizzle freezes immediately upon reaching earth's surface.
Freezing drizzle is still less dangerous than freezing rain, but can
potentially result in hazardous road conditions.
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Weather Topic: What is Fog?
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Next Topic: Fractus Clouds
Fog is technically a type of stratus cloud, which lies along the
ground and obscures visibility.
It is usually created when humidity in the air condenses into tiny water droplets.
Because of this, some places are more prone to foggy weather, such as regions
close to a body of water.
Fog is similar to mist; both are the appearance of water droplets suspended in
the air, but fog is the term applied to the condition when visibility is less than 1 km.
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