Weather Alert in Alaska
Heat Advisory issued August 23 at 11:59AM AKDT until August 25 at 7:00PM AKDT by NWS Juneau AK
AREAS AFFECTED: City of Hyder
DESCRIPTION: * WHAT...High Temperatures exceeding 80 degrees expected. * WHERE...City of Hyder. * WHEN...Until 7 PM AKDT Monday. * IMPACTS...Individuals not accustomed to these unusually warm temperatures for this region may experience heat related illnesses. * ADDITIONAL DETAILS...Warm temperatures are expected each day through Monday, reaching well into the 80s for day time highs. Even though the heat advisory lasts into Monday evening, the warmest temperatures will be daily from noon into the early evening hours, with overnight temperatures then falling well into the 60s. Expect the warmest temperatures to be the farthest away from the water away from significant sea breeze influence.
INSTRUCTION: Drink plenty of fluids, check up on our elders, and especially check up on people you know who may be vulnerable to heat stress due to pre-existing health concerns. Young children and pets should never be left unattended in vehicles under any circumstances as vehicle interiors can reach extreme temperatures in as little as 10 minutes. Take extra precautions when working in the sun. Wear lightweight, loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. Close curtains during the daytime to reduce sun insolation into the home and open windows at night to allow the home to cool off. Utilize fans or community buildings with air conditioning.
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Weather Topic: What are Contrails?
Home - Education - Cloud Types - Contrails
Next Topic: Cumulonimbus Clouds
A contrail is an artificial cloud, created by the passing of an
aircraft.
Contrails form because water vapor in the exhaust of aircraft engines is suspended
in the air under certain temperatures and humidity conditions. These contrails
are called exhaust contrails.
Another type of contrail can form due to a temporary reduction in air pressure
moving over the plane's surface, causing condensation.
These are called aerodynamic contrails.
When you can see your breath on a cold day, it is also because of condensation.
The reason contrails last longer than the condensation from your breath is
because the water in contrails freezes into ice particles.
Next Topic: Cumulonimbus Clouds
Weather Topic: What are Cumulus Clouds?
Home - Education - Cloud Types - Cumulus Clouds
Next Topic: Drizzle
Cumulus clouds are fluffy and textured with rounded tops, and
may have flat bottoms. The border of a cumulus cloud
is clearly defined, and can have the appearance of cotton or cauliflower.
Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall,
becoming cumulus congestus and possibly the even taller cumulonimbus clouds.
When cumulus clouds become taller, they have a greater chance of producing precipitation.
Next Topic: Drizzle
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