Alert archive / California / Tornado Warnings in 2016

Tornado Warning 1, NWS Sacramento, CA

January 13, 2016Shasta County, Tehama County, California

NWS Sacramento, CA issued this tornado warning at Jan 13, 2016, 2:18 PM PST for Shasta County, Tehama County, California. It was in force for 27 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, 2:18 PM PST (22:18 UTC)
Expired
Jan 13, 2016, 2:45 PM PST
In force
27 min
Issued by
NWS Sacramento, CA
Area
Storm-based polygon

Counties Shasta County, CA, Tehama County, CA

The radar

The Beale AFB radar (KBBX), 101 km from the middle of the area, began a volume at 22:20 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

Medford/Jackson, OR (KMFR), launched 12:00Z, 10.3 hours before the alert went out and 233 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, Medford/Jackson, OR at 12:00Z on 2016-01-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Medford/Jackson, OR at 12:00Z on 2016-01-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1131 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
74 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

226 
WFUS56 KSTO 132218
TORSTO
CAC089-103-132245-
/O.NEW.KSTO.TO.W.0001.160113T2218Z-160113T2245Z/

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

THE NATIONAL WEATHER SERVICE IN SACRAMENTO HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTH CENTRAL SHASTA COUNTY IN NORTHERN CALIFORNIA...
  NORTHEASTERN TEHAMA COUNTY IN NORTHERN CALIFORNIA...

* UNTIL 245 PM PST
    
* AT 217 PM PST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED
  NEAR PAYNES CREEK...OR 12 MILES SOUTHWEST OF SHINGLETOWN...AND
  MOVING EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  PAYNES CREEK AND MANTON. 

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 4031 12208 4040 12213 4047 12183 4034 12179
TIME...MOT...LOC 2217Z 268DEG 27KT 4034 12201 

$$

JHM
2 follow-up statements
842 
WWUS56 KSTO 132231
SVSSTO

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

CAC089-103-132245-
/O.CON.KSTO.TO.W.0001.000000T0000Z-160113T2245Z/
SHASTA CA-TEHAMA CA-
231 PM PST WED JAN 13 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 245 PM PST FOR SOUTH
CENTRAL SHASTA AND NORTHEASTERN TEHAMA COUNTIES...
    
AT 229 PM PST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED
NORTH OF PAYNES CREEK...OR WEST OF MANTON...MOVING EAST AT 20 TO 30
MPH.

LOCATIONS IMPACTED INCLUDE...
PAYNES CREEK AND MANTON. 

RADAR SHOWS THIS STORM HAS WEAKENED...BUT STILL SHOULD BE CONSIDERED
DANGEROUS THROUGH 245 PM. 

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 4031 12208 4040 12213 4047 12183 4034 12179
TIME...MOT...LOC 2229Z 256DEG 27KT 4037 12189 

$$

JHM
707 
WWUS56 KSTO 132246
SVSSTO

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

CAC089-103-132255-
/O.EXP.KSTO.TO.W.0001.000000T0000Z-160113T2245Z/
SHASTA CA-TEHAMA CA-
246 PM PST WED JAN 13 2016

...THE TORNADO WARNING FOR SOUTH CENTRAL SHASTA AND NORTHEASTERN
TEHAMA COUNTIES HAS EXPIRED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS
WEAKENED. THEREFORE THE WARNING HAS BEEN ALLOWED TO EXPIRE.

AN ACTIVE TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL TEHAMA
COUNTY UNTIL 315 PM.

LAT...LON 4031 12208 4040 12213 4047 12183 4034 12179
TIME...MOT...LOC 2242Z 268DEG 27KT 4037 12189 

$$

JHM

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, 2:22 PM PSTTornado WarningSTOTehama35 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.