Event: Dense Fog Advisory

Message Type: Alert

Urgency: Expected

Severity: Moderate

Certainty: Likely

Wheather Alert Summary: * what...Visibility one quarter mile or less in dense fog. * where...Grapevine. * when...Until 8 am pst sunday. * impacts...Low visibility could make driving conditions hazardous.

Event: Beach Hazards Statement

Message Type: Alert

Urgency: Expected

Severity: Moderate

Certainty: Likely

Wheather Alert Summary: * what...Increased threat of sneaker waves expected. a very long period swell rapidly building monday will make surf on area beaches particularly high and unexpected even if seas otherwise seem calm. * where...Coastal del norte, northern humboldt coast, southwestern humboldt and mendocino coasts. * when...From monday morning through tuesday morning. . * impacts...Large, unexpected waves can sweep across the beach without warning, sweeping people into the sea from rocks, jetties, and beaches. these sneaker waves can also move large objects such as logs, crushing anyone caught underneath.

Event: Frost Advisory

Message Type: Alert

Urgency: Expected

Severity: Minor

Certainty: Likely

Wheather Alert Summary: * what...Temperatures as low as 33 will result in frost formation. * where...Southeastern mendocino interior. * when...Until 9 am pst sunday. * impacts...Frost could harm sensitive outdoor vegetation. sensitive outdoor plants may be killed if left uncovered.

Event: Beach Hazards Statement

Message Type: Update

Urgency: Expected

Severity: Moderate

Certainty: Likely

Wheather Alert Summary: * what...Moderate period northwesterly swell will result in an increased risk for sneaker waves and rip currents. breaking waves of 13 to 16 feet are expected. * where...San francisco, coastal north bay including point reyes national seashore, san francisco peninsula coast, northern monterey bay and southern monterey bay and big sur coast counties. * when...Through sunday evening. * impacts...Sneaker waves can unexpectedly run significantly farther up the beach than normal, including over rocks and jetties. rip currents are typically more frequent and stronger in the vicinity of jetties, inlets, and piers.

Event: Air Quality Alert

Message Type: Alert

Urgency: Unknown

Severity: Unknown

Certainty: Unknown

Wheather Alert Summary: * what...The south coast aqmd has issued a mandatory wood-burning ban for residents in the south coast air basin. the no-burn rule bans burning wood, pellets, and manufactured fire logs in any indoor or outdoor wood-burning device. * where...The south coast air basin, which includes orange county and non-desert portions of los angeles, riverside, and san bernardino counties. no-burn day alerts do not apply to areas above 3,000 feet in elevation, the coachella valley, or the high desert. homes that rely on wood as a sole source of heat, low-income households and those without natural gas service also are exempt from the requirement. * when...Saturday. * impacts...Particles in smoke can get deep into the lungs and cause health problems (including asthma attacks), increases in emergency room visits, and hospitalizations. no-burn days are needed to protect public health when fine particle pollution levels are expected to be high anywhere in the south coast air basin. no-burn days are based on fine particle pollution levels that are forecasted for an entire 24-hour period, which may not be reflected in real-time air quality maps.