Weather Alert in California
Winter Weather Advisory issued February 17 at 8:38PM PST until February 18 at 4:00PM PST by NWS San Francisco CA
AREAS AFFECTED: Eastern Santa Clara Hills
DESCRIPTION: ...WINTER WEATHER ADVISORY THROUGH WEDNESDAY AFTERNOON... .Cold air will continue to move into the region today through Wednesday afternoon with accumulating snowfall expected across areas above 3000 feet in the Santa Lucia range and the mountains of San Benito and eastern Santa Clara Counties. Total snow accumulations range from 4 to 10 inches with the highest peaks reaching accumulations of 15 to 25 inches. If planning travel to the higher elevations of the Central Coast and eastern Santa Clara County, allow extra time to reach your destination safely. * WHAT...Accumulating snow for elevations above 3000 feet. Elevations below 3000 feet will see no accumulating snow to a dusting. Above 3000 feet total snow accumulations of 4 to 8 inches. * WHERE...Elevations above 3000 feet for the Santa Clara Hills. * WHEN...Until 4 PM PST Wednesday. * IMPACTS...Slick, snow-covered roads, like Hwy 130, and hiking trails. Hikers, outdoor enthusiasts may encounter dangerous winter conditions above the snow level. Heavier snow showers could produce limited visibilities. Downed trees and power outages possible. * ADDITIONAL DETAILS...Wind gusts 25 to 40 mph above 2000 feet. The combination of wind and snow will reduce visibilities.
INSTRUCTION: N/A
Want more detail? Get the Complete 7 Day and Night Detailed Forecast!
Current U.S. National Radar--Current
The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).
National Weather Forecast--Current
The Current National Weather Forecast and National Weather Map are shown below.
National Weather Forecast for Tomorrow
Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.
North America Water Vapor (Moisture)
This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.
Weather Topic: What is Rain?
Home - Education - Precipitation - Rain
Next Topic: Shelf Clouds
Precipitation in the form of water droplets is called rain.
Rain generally has a tendency to fall with less intensity over a greater period
of time, and when rainfall is more severe it is usually less sustained.
Rain is the most common form of precipitation and happens with greater frequency
depending on the season and regional influences. Cities have been shown to have
an observable effect on rainfall, due to an effect called the urban heat island.
Compared to upwind, monthly rainfall between twenty and forty miles downwind of
cities is 30% greater.
Next Topic: Shelf Clouds
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
Current conditions powered by WeatherAPI.com
