Alert archive / California / Tornado Warnings in 1990
Tornado Warning 1, NWS San Diego, CA
NWS San Diego, CA issued this tornado warning at Jan 17, 1990, 12:02 PM PST for San Diego County, California. It was in force for 58 min.
The area
The counties it named.
The facts
- Issued
- Jan 17, 1990, 12:02 PM PST (20:02 UTC)
- Expired
- Jan 17, 1990, 1:00 PM PST
- In force
- 58 min
- Issued by
- NWS San Diego, CA
- Area
- Whole counties
County San Diego County, CA
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
San Diego, CA (KNKX), launched 12:00Z, 8.0 hours before the alert went out and 47 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
- 763 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 53 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, Jan 17, 8:31 AM PST, 3 hours 31 minutes before
CAZ011-012-013-020-171800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN DIEGO CA 8 AM PST WED JAN 17 1990 ...WINTER STORM WARNING FOR THE MOUNTAINS OF SAN DIEGO COUNTY TODAY... ...HAIL IN CHULA VISTA... HAIL BEGINNING TO PILE UP IN PARTS OF SAN DIEGO AT CHULA VISTA. FIRE STATION NUMBER 3 ABOUT 4 MILES SOUTH OF AT MELROSE AND PALOMAR ROADS REPORTED HEAVY PEA SIZE HAIL PILING UP. HAIL IS COMING FROM A HEAVY STORM CELL MOVING EAST AND IS PART OF THE VIGOROUS WINTER STORM THAT MOVED INTO SAN DIEGO OVERNIGHT. THE STORM IS EXTREMELY COLD AND HAIL IS A CHARACTERISTIC OF COLD STORMS. HAIL CAN BE EXPECTED IN OTHER PARTS OF SAN DIEGO TODAY AND THIS EVENING. A WINTER STORM WARNING HAS BEEN POSTED FOR THE MOUNTAINS OF SAN DIEGO COUNTY FOR SNOW DOWN TO 2000 FEET BUT THERE IS POTENTIAL FOR SNOW TO FALL AS LOW AS 1500 FEET THIS AFTERNOON AND EVENING. A FOOT OF NEW SNOW CAN ACCUMULATE IN THE MOUNTAINS. THUNDERSTORMS ALONG THE COAST CAN ALSO PRODUCE HAZARDOUS CONDITIONS TO BOATERS. THESE THUNDERSTORMS MAY BE ACCOMANIED BY HEAVY RAIN... ERRATIC GUSTY WINDS TO 70 MPH...POSSIBLE HAIL...AND ROUGH SEAS OF 9 TO 12 FEET TODAY. THE GROUNDS ARE SATURATED AND LOCAL DOWNPOURS CAN PRODUCE STREET FLOODING TODAY. STORM TOTAL TODAY ARE ESTIMATED UP TO A HALF INCH BUT INCH INLAND. THE STORM WILL WEAKEN THURSDAY MORNING LEAVING BEHIND A FEW DEPARTING SHOWERS. THE STORM WILL END THURSDAY AFTERNOON. DRY CONDITIONS ARE EXPECTED FRIDAY. THE NEXT STORM FROM THE GULF OF ALASKA IS WEAKENING AS IT APPROACHES THE WEST COAST. DOUBTFUL MUCH OF IT WILL REMAIN AS IT COMES INTO CALIFORNIA THIS WEEKEND. THE STORM WILL LEAVE BEHIND COLD AIR AND GROWERS HAVE BEEN ADVISED SOME FROST PROTECTION MAY BECOME NECESSARY IN THE COLDEST ORCHARDS END OF THIS WEEK AND THE WEEKEND. NORMAL FROST PROTECTION MEASURES SHOULD PROVIDE ADEQUATE PROTECTION FOR CROPS WITH COLDEST MINIMUMS IN THE MIDDLE TO UPPER 20S THURSDAY NIGHT THROUGH SATURDAY NIGHT. . SHIGEHARA
Nearby
Tornado Warnings in California, 1990Every tornado warning in 1990Tornadoes in 1990
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.