Weather Alert in California
Heat Advisory issued July 14 at 11:21AM PDT until July 15 at 9:00AM PDT by NWS Reno NV
AREAS AFFECTED: Surprise Valley California; Lassen-Eastern Plumas-Eastern Sierra Counties; Greater Reno-Carson City-Minden Area; Northern Washoe County
DESCRIPTION: * WHAT...High temperatures of 98-104 degrees expected in lower elevations through this afternoon with tonight's low temperatures in the 60s to near 70 degrees, resulting in widespread Major HeatRisk. * WHERE...In California, Lassen-Eastern Plumas-Eastern Sierra Counties and Surprise Valley California. In Nevada, Northern Washoe County and Greater Reno-Carson City-Minden Area. * WHEN...Until 9 AM PDT Tuesday. * IMPACTS...Heat related illnesses increase significantly during heat events, particularly for those working or participating in outdoor activities. * ADDITIONAL DETAILS...High temperatures on Tuesday will be about 5 degrees cooler compared to today, mainly in the mid-upper 90s for lower elevations, followed by more cooling Tuesday night, so the duration of this Heat Advisory has been reduced.
INSTRUCTION: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
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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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