Alert archive / California / Tornado Warnings in 2016

Tornado Warning 2, NWS Sacramento, CA

January 13, 2016Tehama County, California

NWS Sacramento, CA issued this tornado warning at Jan 13, 2016, 2:22 PM PST for Tehama County, California. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jan 13, 2016, 2:22 PM PST (22:22 UTC)
Expired
Jan 13, 2016, 2:57 PM PST
In force
35 min
Issued by
NWS Sacramento, CA
Area
Storm-based polygon

County Tehama County, CA

The radar

The Beale AFB radar (KBBX), 69 km from the middle of the area, began a volume at 22:24 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.

The nearest sounding before it

Oakland, CA (KOAK), launched 12:00Z, 10.4 hours before the alert went out and 261 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Oakland, CA at 12:00Z on 2016-01-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 42 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Oakland, CA at 12:00Z on 2016-01-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 171 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
42 J/kg
Mixed-layer CIN
-143 J/kg
Mixed-layer LCL
666 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
171 m²/s²
0-3 km storm-relative helicity
153 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

797 
WFUS56 KSTO 132222
TORSTO
CAC103-132315-
/O.NEW.KSTO.TO.W.0002.160113T2222Z-160113T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SACRAMENTO CA
222 PM PST WED JAN 13 2016

THE NATIONAL WEATHER SERVICE IN SACRAMENTO HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL TEHAMA COUNTY IN NORTHERN CALIFORNIA...

* UNTIL 315 PM PST
    
* AT 222 PM PST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED
  NEAR GERBER-LAS FLORES...OR 9 MILES SOUTHEAST OF RED BLUFF...AND
  MOVING EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  GERBER-LAS FLORES AND LOS MOLINOS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF YOU ARE IN A MOBILE HOME OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3997 12188 4005 12218 4020 12209 4014 12178
TIME...MOT...LOC 2222Z 278DEG 25KT 4011 12209 

$$

CS
1 follow-up statement
331 
WWUS56 KSTO 132257
SVSSTO

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SACRAMENTO CA
257 PM PST WED JAN 13 2016

CAC103-132306-
/O.CAN.KSTO.TO.W.0002.000000T0000Z-160113T2315Z/
TEHAMA CA-
257 PM PST WED JAN 13 2016

...THE TORNADO WARNING FOR CENTRAL TEHAMA COUNTY IS CANCELLED...
        
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS
AND EXITED THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 3997 12188 4005 12218 4020 12209 4014 12178
TIME...MOT...LOC 2252Z 278DEG 25KT 4009 12192 

$$

CS

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 13, 1:43 PM PSTSpecial Weather StatementSTOShasta62 min
Jan 13, 2:03 PM PSTSpecial Weather StatementSTOTehama57 min
Jan 13, 2:18 PM PSTTornado WarningSTOShasta, Tehama27 min
Jan 13, 3:01 PM PSTSpecial Weather StatementSTOButte59 min

Nearby

Tornado Warnings in California, 2016Every tornado warning in 2016Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.