Weather Alert in Washington
Heat Advisory issued July 15 at 4:49PM PDT until July 16 at 10:00PM PDT by NWS Seattle WA
AREAS AFFECTED: Foothills and Valleys of the North Cascades; Foothills and Valleys of Snohomish and Northern King Counties; Foothills and Valleys of Central King County; Foothills and Valleys of Pierce and Southern King Counties; Foothills and Valleys of Thurston and Lewis Counties; Lowlands of Western Whatcom County; Lowlands of Western Skagit and Northwestern Snohomish Counties; Downtown Everett / Marysville Area; Shoreline / Lynnwood / South Everett Area; Eastside; City of Seattle; Lowlands of Pierce and Southern King Counties; Olympia and Southern Puget Sound; Lowlands of Lewis and Southern Thurston Counties; Middle Chehalis River Valley; Southern Hood Canal; Northern Hood Canal; Eastern Kitsap County
DESCRIPTION: * WHAT...Hot conditions with high temperatures in the 80s to low 90s today and 80s to mid 90s Wednesday. Low temperatures mostly in the low to mid 60s. This will pose a Moderate risk of heat-related impacts. * WHERE...Portions of northwest and west central Washington. * WHEN...Until 10 PM PDT Wednesday. * IMPACTS...Heat will significantly increase the risk of heat-related illnesses for those who are sensitive to heat, especially those without effective cooling or adequate hydration.
INSTRUCTION: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
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Weather Topic: What is Sleet?
Home - Education - Precipitation - Sleet
Next Topic: Snow
Sleet is a form of precipitation in which small ice pellets are the primary
components. These ice pellets are smaller and more translucent than hailstones,
and harder than graupel. Sleet is caused by specific atmospheric conditions and
therefore typically doesn't last for extended periods of time.
The condition which leads to sleet formation requires a warmer body of air to be
wedged in between two sub-freezing bodies of air. When snow falls through a warmer
layer of air it melts, and as it falls through the next sub-freezing body of air
it freezes again, forming ice pellets known as sleet. In some cases, water
droplets don't have time to freeze before reaching the surface and the result is
freezing rain.
Next Topic: Snow
Weather Topic: What are Stratocumulus Clouds?
Home - Education - Cloud Types - Stratocumulus Clouds
Next Topic: Stratus Clouds
Stratocumulus clouds are similar to altocumulus clouds in their
fluffy appearance, but have a slightly darker shade due to their additional mass.
A good way to distinguish the two cloud types is to hold your hand out and measure
the size of an individual cloud; if it is the size of your thumb it is generally
an altocumulus cloud, if it is the size of your hand it is generally a
stratocumulus cloud.
It is uncommon for stratocumulus clouds to produce precipitation, but if they do
it is usually a light rain or snow.
Next Topic: Stratus Clouds
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