Alert archive / California / Tornado Warnings in 2008
Tornado Warning 5, NWS San Diego, CA
NWS San Diego, CA issued this tornado warning at Jul 10, 2008, 10:14 PM PDT for San Bernardino County, California. It was in force for 46 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
- Jul 10, 2008, 10:14 PM PDT (05:14 UTC)
- Expired
- Jul 10, 2008, 11:00 PM PDT
- In force
- 46 min
- Issued by
- NWS San Diego, CA
- Area
- Storm-based polygon
County San Bernardino County, CA
The radar
The Santa Ana Mts radar (KSOX), 117 km from the middle of the area, began a volume at 05:13 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
San Diego, CA (KNKX), launched 00:00Z, 5.2 hours before the alert went out and 183 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1248 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 123 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000
WFUS56 KSGX 110514
TORSGX
CAC071-110600-
/O.NEW.KSGX.TO.W.0005.080711T0514Z-080711T0600Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SAN DIEGO CA
1014 PM PDT THU JUL 10 2008
THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A
* TORNADO WARNING FOR...
SOUTH CENTRAL SAN BERNARDINO COUNTY IN SOUTHEAST CALIFORNIA...
* UNTIL 1100 PM PDT
* AT 1012 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR JOHNSON
VALLEY...OR 30 MILES SOUTHWEST OF LUDLOW...MOVING SOUTH AT 23 MPH.
* THE TORNADO WILL BE NEAR...
JOHNSON VALLEY BY 1025 PM PDT...
RIMROCK BY 1100 PM PDT...
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
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 3450 11645 3437 11646 3431 11649 3421 11645
3417 11648 3416 11660 3425 11664 3432 11673
3456 11672 3456 11650
TIME...MOT...LOC 0514Z 353DEG 20KT 3446 11660
$$
SCV2 follow-up statements
000
WWUS56 KSGX 110538
SVSSGX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN DIEGO CA
1033 PM PDT THU JUL 10 2008
CAC071-110600-
/O.CON.KSGX.TO.W.0005.000000T0000Z-080711T0600Z/
SAN BERNARDINO CA-
1033 PM PDT THU JUL 10 2008
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1100 PM PDT FOR SOUTH
CENTRAL SAN BERNARDINO COUNTY...
AT 1025 PM PDT...TRAINED WEATHER SPOTTERS REPORTED A WALL CLOUD
NORTH OF JOHNSON VALLEY. RADAR INDICATES THAT A TORNADO IS LOCATED
NEAR JOHNSON VALLEY...MOVING SOUTH AT 20 MPH.
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
LAT...LON 3450 11645 3437 11646 3431 11649 3421 11645
3417 11648 3416 11660 3425 11664 3432 11673
3456 11672 3456 11650
TIME...MOT...LOC 0533Z 351DEG 15KT 3440 11659
$$
SCV000
WWUS56 KSGX 110551
SVSSGX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN DIEGO CA
1050 PM PDT THU JUL 10 2008
CAC071-110600-
/O.EXP.KSGX.TO.W.0005.000000T0000Z-080711T0600Z/
SAN BERNARDINO CA-
1050 PM PDT THU JUL 10 2008
...THE TORNADO WARNING FOR SOUTH CENTRAL SAN BERNARDINO COUNTY WILL
EXPIRE AT 1100 PM PDT...
DOPPLER RADAR NO LONGER INDICATES A TORNADO WITH THIS STORM. THE
TORNADO WARNING WILL BE ALLOWED TO EXPIRE.
LAT...LON 3450 11645 3437 11646 3431 11649 3421 11645
3417 11648 3416 11660 3425 11664 3432 11673
3456 11672 3456 11650
TIME...MOT...LOC 0550Z 351DEG 15KT 3433 11658
$$
SCVThe office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 9:48 PM PDT | Severe Thunderstorm Warning | SGX | San Bernardino | 72 min |
| Jul 10, 9:50 PM PDT | Flash Flood Warning | SGX | San Bernardino | 85 min |
Nearby
Tornado Warnings in California, 2008Every tornado warning in 2008Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.