Alert archive / California / Tornado Warnings in 2014
Tornado Warning 13, NWS Sacramento, CA
NWS Sacramento, CA issued this tornado warning at Mar 29, 2014, 8:33 PM PDT for Butte County, Tehama County, California. It was in force for 42 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
- Mar 29, 2014, 8:33 PM PDT (03:33 UTC)
- Expired
- Mar 29, 2014, 9:15 PM PDT
- In force
- 42 min
- Issued by
- NWS Sacramento, CA
- Area
- Storm-based polygon
Counties Butte County, CA, Tehama County, CA
The radar
The Beale AFB radar (KBBX), 43 km from the middle of the area, began a volume at 03:33 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 00:00Z, 3.6 hours before the alert went out and 237 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.
- Mixed-layer CAPE
- 3 J/kg
- Mixed-layer CIN
- -73 J/kg
- Mixed-layer LCL
- 1002 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- -26 m²/s²
- 0-3 km storm-relative helicity
- 39 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
907 WFUS56 KSTO 300333 TORSTO CAC007-103-300415- /O.NEW.KSTO.TO.W.0013.140330T0333Z-140330T0415Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SACRAMENTO CA 833 PM PDT SAT MAR 29 2014 THE NATIONAL WEATHER SERVICE IN SACRAMENTO HAS ISSUED A * TORNADO WARNING FOR... WEST CENTRAL BUTTE COUNTY IN NORTHERN CALIFORNIA... SOUTH CENTRAL TEHAMA COUNTY IN NORTHERN CALIFORNIA... * UNTIL 915 PM PDT * AT 830 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR NORD...OR 8 MILES NORTHWEST OF CHICO...MOVING EAST AT 10 MPH. THE POSSIBLE TORNADO IS OVER HIGHWAY 99. * THE TORNADO WILL BE OVER... RURAL NORTHWESTERN BUTTE COUNTY THROUGH 910 PM PDT...AND IS EXPECTED TO REMAIN NORTH OF CHICO. HAIL AND DANGEROUS LIGHTNING ARE ALSO EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... THE SAFEST PLACE TO BE DURING A TORNADO UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. && LAT...LON 3990 12181 3976 12176 3975 12197 3990 12194 TIME...MOT...LOC 0330Z 279DEG 7KT 3981 12188 $$ JHM
2 follow-up statements
413 WWUS56 KSTO 300354 SVSSTO SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SACRAMENTO CA 854 PM PDT SAT MAR 29 2014 CAC007-103-300415- /O.CON.KSTO.TO.W.0013.000000T0000Z-140330T0415Z/ TEHAMA CA-BUTTE CA- 854 PM PDT SAT MAR 29 2014 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM PDT FOR WEST CENTRAL BUTTE AND SOUTH CENTRAL TEHAMA COUNTIES... AT 848 PM PDT...DOPPLER RADAR INDICATED A POSSIBLE TORNADO ABOUT 7 MILES NORTHWEST OF CHICO AND EAST OF NORD...MOVING TO THE EAST AT 10 TO 15 MPH. THE POSSIBLE TORNADO IS VERY CLOSE TO HIGHWAY 99. EARLIER...AT 740 PM...A TRAINED WEATHER SPOTTER REPORTED A BRIEF TORNADO FOR ABOUT A MINUTE JUST NORTHWEST OF NORD WITH THIS STORM. THE POSSIBLE TORNADO IS EXPECTED TO REMAIN OVER MAINLY RURAL AREAS OF NORTHWEST BUTTE COUNTY...AND JUST A FEW MILES NORTHWEST OF CHICO. TAKE SHELTER NOW IF YOU LIVE IN NEAR NORD. LAT...LON 3990 12181 3976 12176 3975 12197 3990 12194 TIME...MOT...LOC 0344Z 279DEG 7KT 3981 12185 $$ JHM
220 WWUS56 KSTO 300416 SVSSTO SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SACRAMENTO CA 916 PM PDT SAT MAR 29 2014 CAC007-103-300425- /O.EXP.KSTO.TO.W.0013.000000T0000Z-140330T0415Z/ TEHAMA CA-BUTTE CA- 916 PM PDT SAT MAR 29 2014 ...THE TORNADO WARNING FOR WEST CENTRAL BUTTE AND SOUTH CENTRAL TEHAMA COUNTIES HAS EXPIRED... DOPPLER RADAR INDICATES THE TORNADIC CIRCULATION HAS WEAKENED AND THE WARNING WILL NOT BE REISSUED FOR THE THE AREA. LAT...LON 3990 12181 3976 12176 3975 12197 3990 12194 TIME...MOT...LOC 0354Z 279DEG 7KT 3981 12182 $$ JHM
The office that day
Everything else NWS Sacramento, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 29, 5:05 PM PDT | Special Weather Statement | STO | Tehama | 40 min |
| Mar 29, 5:25 PM PDT | Tornado Warning | STO | Glenn, Tehama | 35 min |
| Mar 29, 6:01 PM PDT | Tornado Warning | STO | Glenn, Tehama | 29 min |
| Mar 29, 6:31 PM PDT | Special Weather Statement | STO | Tehama | 44 min |
| Mar 29, 7:45 PM PDT | Tornado Warning | STO | Butte, Glenn, Tehama | 45 min |
| Mar 29, 9:21 PM PDT | Special Weather Statement | STO | Butte | 54 min |
| Mar 30, 3:40 AM PDT | Winter Storm Watch | STO | 10 hr | |
| Mar 30, 1:22 PM PDT | Winter Storm Warning | STO | 38 hr | |
| Mar 30, 1:22 PM PDT | Winter Weather Advisory | STO | 38 hr |
Nearby
Tornado Warnings in California, 2014Every tornado warning in 2014Tornadoes in 2014
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.