Alert archive / California / Severe Thunderstorm Watches in 2008

Severe Thunderstorm Watch 23

January 27, 200813 counties in California

The Storm Prediction Center issued this severe thunderstorm watch at Jan 27, 2008, 12:48 PM PST for 13 counties in California. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jan 27, 2008, 12:48 PM PST (20:48 UTC)
Expired
Jan 27, 2008, 6:00 PM PST
In force
5 hr
Issued by
the Storm Prediction Center
Largest hail expected
1 in
Strongest gust expected
60 kt

Counties Fresno County, CA, Kern County, CA, Kings County, CA, Los Angeles County, CA, Madera County, CA, Mariposa County, CA, Merced County, CA, Monterey County, CA, San Benito County, CA, San Luis Obispo County, CA, Santa Barbara County, CA, Tulare County, CA, Ventura County, CA

The radar

The San Joaquin Valley radar (KHNX), 59 km from the middle of the area, began a volume at 20:50 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 SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
20%
One or more EF2 to EF5 tornadoes
5%
Ten or more severe wind reports
30%
One or more gusts of 65 knots or more
5%
Ten or more severe hail reports
30%
One or more hailstones of 2 inches or more
5%
Six or more combined severe hail and wind reports
80%

Warnings issued inside it

2 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jan 27, 3:28 PM PSTSevere Thunderstorm WarningLOXLos Angeles47 min
Jan 27, 4:17 PM PSTSevere Thunderstorm WarningHNXTulare43 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 27, 9:39 AM PSTMesoscale DiscussionSPCVentura2 hr
Jan 27, 9:53 AM PSTMesoscale DiscussionSPCSiskiyou, Trinity6 hr
Jan 27, 12:10 PM PSTMesoscale DiscussionSPCFresno, Kings, Merced, Monterey, San Benito, San Luis Obispo2 hr

Nearby

Severe Thunderstorm Watches in California, 2008Every severe thunderstorm watch in 2008

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.