Alert archive / California / Frost Advisories in 2016

Frost Advisory 11, NWS Los Angeles, CA

December 17, 2016Los Angeles County, California

NWS Los Angeles, CA issued this frost advisory at Dec 17, 2016, 2:03 PM PST for Los Angeles County, California. It took effect at Dec 18, 2016, 2:00 AM PST. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: Dec 17, 2016, 2:03 PM PST (22:03 UTC)
In effect from: Dec 18, 2016, 2:00 AM PST
Expired: Dec 18, 2016, 9:00 AM PST
In force: 7 hr
Issued by: NWS Los Angeles, CA

County Los Angeles County, CA

The radar

The Santa Ana Mts radar (KSOX), 71 km from the middle of the area, began a volume at 22:05 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What forecasters said that day

The local office's own words before this frost advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Los Angeles, CA wrote its last area forecast discussion before this frost advisory went out at Dec 17, 10:55 AM PST, 3 hours 8 minutes earlier.

Area forecast discussion, Dec 17, 10:55 AM PST, 3 hours 8 minutes before

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The office that day

Everything else NWS Los Angeles, CA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 16, 5:29 PM PST	Freeze Watch	LOX		10 hr
Dec 16, 5:29 PM PST	Freeze Warning	LOX		15 hr
Dec 16, 5:29 PM PST	Hard Freeze Watch	LOX	Santa Barbara	10 hr
Dec 17, 3:28 AM PST	Freeze Warning	LOX		30 hr
Dec 17, 3:28 AM PST	Hard Freeze Warning	LOX	Santa Barbara	30 hr
Dec 17, 2:03 PM PST	Freeze Watch	LOX		24 hr
Dec 17, 2:03 PM PST	Hard Freeze Watch	LOX	Santa Barbara	24 hr

Nearby

Frost Advisories in California, 2016 Every frost advisory in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.