Weather Alert in Utah
Fire Weather Watch issued August 13 at 2:29AM MDT until August 14 at 9:00PM MDT by NWS Salt Lake City UT
AREAS AFFECTED: Wasatch Mountains
DESCRIPTION: * AFFECTED AREA...Fire Weather Zone 479 Wasatch Mountains. * WINDS...Today, west 10 to 20 mph with gusts to 30 mph. * RELATIVE HUMIDITY...Today, 10 to 15 percent. * THUNDERSTORMS...Thursday, scattered thunderstorms will form over the higher terrain of Utah during the afternoon through the evening. Given the extended period of very dry conditions with little to no rain, new wildfire starts are likely with any lightning. * OUTFLOW WINDS...Thursday, gusty and erratic outflow winds up to 50 mph are possible with any thunderstorms. * IMPACTS...Critical fire weather conditions are expected. Any new fire starts or existing fires may spread rapidly.
INSTRUCTION: A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. A Fire Weather Watch means that there is a potential for critical fire weather conditions. A combination of lightning...dry fuel conditions...and gusty microburst winds may create favorable conditions for new fire starts and extreme fire behavior.
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Weather Topic: What is Evaporation?
Home - Education - Precipitation - Evaporation
Next Topic: Fog
Evaporation is the process which returns water from the earth
back to the atmosphere, and is another crucial process in the water cycle.
Evaporation is the transformation of liquid into gas, and it happens because
molecules are excited by the application of energy and turn into vapor.
In order for water to evaporate it has to be on the surface of a body of water.
Next Topic: Fog
Weather Topic: What are Fractus Clouds?
Home - Education - Cloud Types - Fractus Clouds
Next Topic: Freezing Rain
A fractus cloud (scud) is a fragmented, tattered cloud which has
likely been sheared off of another cloud. They are accessory clouds, meaning they
develop from parent clouds, and are named in a way which describes the original
cloud which contained them.
Fractus clouds which have originated from cumulus clouds are referred to as
cumulus fractus, while fractus clouds which have originated from stratus clouds
are referred to as stratus fractus. Under certain conditions a fractus cloud might
merge with another cloud, or develop into a cumulus cloud, but usually a
fractus cloud seen by itself will dissipate rapidly.
They are often observed on the leading and trailing edges of storm clouds,
and are a display of wind activity.
Next Topic: Freezing Rain
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