Alert archive / California / Tornado Warnings in 1994
Tornado Warning 1, NWS Los Angeles, CA
NWS Los Angeles, CA issued this tornado warning at Aug 12, 1994, 3:10 PM PDT for Riverside County, California. It was in force for 95 min.
The area
The counties it named.
The facts
- Issued
- Aug 12, 1994, 3:10 PM PDT (22:10 UTC)
- Expired
- Aug 12, 1994, 4:45 PM PDT
- In force
- 95 min
- Issued by
- NWS Los Angeles, CA
- Area
- Whole counties
County Riverside County, CA
The nearest sounding before it
San Diego, CA (KNKX), launched 12:00Z, 10.2 hours before the alert went out and 154 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
- 2 J/kg
- Mixed-layer CIN
- -877 J/kg
- Mixed-layer LCL
- 2200 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- -19 m²/s²
- 0-3 km storm-relative helicity
- 33 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Aug 12, 12:00 PM PDT, 3 hours 10 minutes before
CAZ051-052-018-132000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LOS ANGELES CA 1200 PM PDT SAT AUG 12 1994 ...SCATTERED THUNDERSTORMS DEVELOPING OVER THE SAN BERNARDINO MOUNTAINS... AT 12 PM PDT, SULPHUR MOUNTAIN DOPPLER RADAR INDICATED A THUNDERSTORM HAD DEVELOPED IN THE SAN BERNARDINO MOUNTAINS, OVER BIG BEAR CITY. SPOTTER REPORTS DURING THE LAST HALF HOUR INDICATED A THUNDERSTORM WITH HEAVY RAIN AND SMALL HAIL. THESE STORMS WILL CONTINUE TO INTENSIFY DURING THE AFTERNOON HOURS, AND WILL SPREAD INTO SOME DESERT COMMUNITIES DURING THE AFTERNOON. PERSONS IN THESE AREAS SHOULD KEEP A WATCHFUL EYE ON THESE STORMS, AS LOCALIZED FLOODING MAY OCCUR, ALONG WITH HEAVY RAIN, SMALL HAIL, AND STONG GUSTY WINDS. ADDITIONAL RADAR DATA SHOWED SOME SCATTERED LIGHT SHOWERS OVER THE WEST SANTA BARBARA CHANNEL AREA. MOST OF THIS ACTIVITY WAS LIGHT, AND WAS MOVING NORTHWEST TOWARDS POINT CONCEPTION. ENTREKIN
Special weather statement, Aug 12, 12:10 PM PDT, 3 hours before
CAZ013-018-122100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LOS ANGELES CA 1210 PM PDT FRI AUG 12 1994 ...THUNDERSTORMS DEVELOPING OVER THE MOUNTAINS... AT 1200 PM, SULPHER MOUNTAIN DOPPLER RADAR AND CONVENTIONAL RADAR INDICATED SCATTERED THUNDERSTORMS HAD DEVELOPED OVER THE MOUNTAINS OF SOUTHERN CALIFORNIA. THE ACTIVITY WAS CONCENTRATED OVER THE SAN BERNARDINO MOUNTAINS NEAR BIG BEAR, WHERE A SPOTTER REPORTED A THUNDERSHOWER OVER THE SUGARLOAF AREA. ADDITIONAL THUNDERSTORMS WERE ALSO DEVLEOPING OVER THE SAN JACINTO, AND SAN DIEGO COUNTY MOUNTAIN AREAS. THE THUNDERSTORMS WILL CONTINUE TO INTENSIFY IN THESE AREAS, AND WILL SPREAD INTO SOME DESERT COMMUNITIES DURING THE AFTERNOON. THESE STORMS MAY PRODUCE HEAVY RAIN, LIGHTNING, AND STRONG GUSTY WINDS. PERSONS IN THESE AREAS SHOULD KEEP A WATCHFUL EYE ON THESE STORMS, AS LOCALIZED FLOODING MAY OCCUR. IF YOU ARE IN OR NEAR THESE THUNDERSTORMS, TAKE SHELTER IMMEDIATELY. ENTREKIN
Special weather statement, Aug 12, 12:25 PM PDT, 2 hours 45 minutes before
CAZ013-018-122100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LOS ANGELES CA 1210 PM PDT FRI AUG 12 1994 ...THUNDERSTORMS DEVELOPING OVER THE MOUNTAINS... AT 1200 PM, SULPHER MOUNTAIN DOPPLER RADAR AND CONVENTIONAL RADAR INDICATED SCATTERED THUNDERSTORMS HAD DEVELOPED OVER THE MOUNTAINS OF SOUTHERN CALIFORNIA. THE ACTIVITY WAS CONCENTRATED OVER THE SAN BERNARDINO MOUNTAINS NEAR BIG BEAR, WHERE A SPOTTER REPORTED A THUNDERSHOWER OVER THE SUGARLOAF AREA. ADDITIONAL THUNDERSTORMS WERE ALSO DEVLEOPING OVER THE SAN JACINTO, AND SAN DIEGO COUNTY MOUNTAIN AREAS. THE THUNDERSTORMS WILL CONTINUE TO INTENSIFY IN THESE AREAS, AND WILL SPREAD INTO SOME DESERT COMMUNITIES DURING THE AFTERNOON. THESE STORMS MAY PRODUCE HEAVY RAIN, LIGHTNING, AND STRONG GUSTY WINDS. PERSONS IN THESE AREAS SHOULD KEEP A WATCHFUL EYE ON THESE STORMS, AS LOCALIZED FLOODING MAY OCCUR. IF YOU ARE IN OR NEAR THESE THUNDERSTORMS, TAKE SHELTER IMMEDIATELY. ENTREKIN
Special weather statement, Aug 12, 12:40 PM PDT, 2 hours 30 minutes before
CAZ018-132030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LOS ANGELES CA 1240 PM PDT SAT AUG 12 1994 ...THUNDERSTORM OVER BIG BEAR LAKE AREA... AT 1230 PM PDT, SULPHUR MOUNTAIN DOPPLER RADAR CONTINUED TO SHOW A STRONG THUNDERSTORM OVER THE SAN BERNARDINO MOUNTAINS, AROUND BIG BEAR CITY. SPOTTER REPORTS DURING THE LAST HOUR CONTINUED TO INDICATE HEAVY RAIN AND NAVY-BEAN SIZED HAIL WITH THIS STORM. PERSONS IN THE BIG BEAR LAKE AREA SHOULD KEEP A WATCHFUL EYE ON THIS STORM, AS LOCALIZED FLOODING MAY OCCUR, ALONG WITH HEAVY RAIN, SMALL HAIL, AND STONG GUSTY WINDS. ENTREKIN
The office that day
Everything else NWS Los Angeles, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 2:00 PM PDT | Severe Thunderstorm Warning | LOX | Riverside | 90 min |
| Aug 12, 3:38 PM PDT | Severe Thunderstorm Warning | LOX | Orange, Riverside | 52 min |
| Aug 12, 4:04 PM PDT | Severe Thunderstorm Warning | LOX | Los Angeles, San Bernardino | 86 min |
Nearby
Tornado Warnings in California, 1994Every tornado warning in 1994Tornadoes in 1994
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.