Weather Alerts for California

Recent Locations: Borough of Bronx, NY Woodstock, OH Norwalk, CA

Current Alerts for Norwalk, CA: Beach Hazards Statement Heat Advisory

1. Beach Hazards Statement for: Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay

2. Beach Hazards Statement for: San Diego County Coastal Areas; Orange County Coastal

3. Beach Hazards Statement for: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches

4. Beach Hazards Statement for: Ventura County Beaches; Malibu Coast; Los Angeles County Beaches

5. Heat Advisory for: Calabasas and Agoura Hills

6. Heat Advisory for: Cuyama Valley; San Luis Obispo County Mountains

7. Heat Advisory for: Lake Casitas; Ojai Valley; Central Ventura County Valleys; Santa Susana Mountains; Southern Ventura County Mountains; Interstate 5 Corridor; Western San Gabriel Mountains and Highway 14 Corridor

8. Heat Advisory for: San Luis Obispo County Inland Central Coast; Southern Salinas Valley; Santa Barbara County Inland Central Coast; Santa Ynez Valley; Santa Ynez Mountains Western Range

9. Heat Advisory for: San Luis Obispo County Interior Valleys; Santa Barbara County Interior Mountains

10. Heat Advisory for: Santa Clarita Valley; Los Angeles County Inland Coast including Downtown Los Angeles; Western Santa Monica Mountains Recreational Area; Eastern Santa Monica Mountains Recreational Area; Western San Fernando Valley; Eastern San Fernando Valley; Southeastern Ventura County Valleys; Los Angeles County San Gabriel Valley

11. Heat Advisory for: Santa Lucia Mountains; Santa Barbara County Southwestern Coast

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North America Water Vapor (Moisture)

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Weather Topic: What are Hole Punch Clouds?

Home - Education - Cloud Types - Hole Punch Clouds

Hole Punch Clouds Next Topic: Mammatus Clouds

A hole punch cloud is an unusual occurrence when a disk-shaped hole appears in a cirrostratus, cirrocumulus, or altocumulus cloud.

When part of the cloud forms ice crystals, water droplets in the surrounding area of the cloud evaporate. The effect of this process produces a large elliptical gap in the cloud. The hole punch cloud formation is rare, but it is not specific to any geographic area.

Other names which have been used to describe this phenomena include fallstreak hole, skypunch, and cloud hole.

Next Topic: Mammatus Clouds

Weather Topic: What are Nimbostratus Clouds?

Home - Education - Cloud Types - Nimbostratus Clouds

Nimbostratus Clouds Next Topic: Precipitation

A nimbostratus cloud is similar to a stratus cloud in its formless, smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud, because it is thicker.

Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat of moderate to heavy precipitation. In some cases, the precipitation may evaporate before reaching the ground, a phenomenon known as virga.

Next Topic: Precipitation