Weather Alert in California

Recent Locations: Fortuna, CA   Goodyears Bar, CA   Graton, CA  

Heat Advisory issued August 11 at 1:30AM PDT until August 12 at 9:00PM PDT by NWS Los Angeles/Oxnard CA

AREAS AFFECTED: Santa Ynez Mountains Western Range

DESCRIPTION: * WHAT...For the Heat Advisory, daytime high temperatures in the 80s and 90s at high elevation to the mid 90s to near 105 degrees in the foothills and high valleys. Overnight low temperatures will be in the 70s to low 80s. For the Wind Advisory, northwest winds 15 to 30 mph with gusts up to 45 mph expected. * WHERE...Santa Ynez Mountains Western Range. * WHEN...For the Heat Advisory, until 9 PM PDT Tuesday. For the Wind Advisory, from 6 PM this evening to 3 AM PDT Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. There is a high risk for heat illness for sensitive populations including the very young, the very old, those without air conditioning, and those active outdoors.

INSTRUCTION: Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and 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. 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

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

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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