Alert archive / California / Tornado Warnings in 1991
Tornado Warning 3, NWS San Diego, CA
NWS San Diego, CA issued this tornado warning at Mar 27, 1991, 2:16 AM PST for San Diego County, California. It was in force for 59 min.
The area
The counties it named.
The facts
- Issued
- Mar 27, 1991, 2:16 AM PST (10:16 UTC)
- Expired
- Mar 27, 1991, 3:15 AM PST
- In force
- 59 min
- Issued by
- NWS San Diego, CA
- Area
- Whole counties
County San Diego County, CA
The nearest sounding before it
San Diego, CA (KNKX), launched 00:00Z, 10.3 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
- 44 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 1099 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 66 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAN 271018 TORSAN CAC073-271115- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SAN DIEGO CA 216 AM PST WED MAR 27 1991 THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 315 AM PST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHWEST CALIFORNIA ...NORTHERN SAN DIEGO COUNTY FOR MARINE INTERESTS ON THE COASTAL WATERS AROUND...NORTHER SAN DIEGO COUNTY... THE SAN DIEGO COUNTY SHERIFF REPORTED THAT A RESIDENT OF SAN MARCOS IN NORTHERN SAN DIEGO COUNTY SPOTTED A TRONADO THAT STRUCK THE GRAND AVENUE SECTION OF THE TOWN. A LARGE SHED WAS LIFTED FROM ONE YARD TO ANOTHER...AT THIS TIME NO OTHER DAMAGE HAS BEEN REPORTED. ALL RESIDENTS OF NORTHERN SAN DIEGO COUNTY SHOULD BE AWARE OF THIS DANGEROUS STORM SITUATION. THIS IS A DANGEROUS STORM SITUATION. ACT QUICKLY. IF YOU ARE IN THE PATH OF THIS TORNADO MOVE TO A SHELTER BELOW GROUND IF AVAILABLE. OTHERWIScE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR POSSIBLE. AVOID WINDOWS. ABANDON CARS AND MOBILE HOMES FOR A REINFORCED BUILDING OR GET INTO A DITCH OR CULVERT.
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, Mar 26, 9:06 PM PST, 5 hours 10 minutes before
CAZALL-271200 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN DIEGO CA 915 PM PST TUE MAR 26 1991 ...WINTER STORM WARNING SAN DIEGO MOUNTAINS THROUGH WEDNESDAY... ...URBAN STREET FLOODING POSSIBLE... AN ADDITIONAL FOOT OR TWO FEET OF SNOW IS EXPECTED IN SAN DIEGO COUNTY MOUNTAINS TONIGHT THROUGH WEDNESDAY WITH NEAR BLIZZARD CONDITIONS CREATED BY GUSTY WINDS. SOUTH TO SOUTHWEST WINDS GUSTING TO 40 MPH AT TIMES ARE EXPECTED THROUGH WEDNESDAY. THE SNOW LEVEL WILL LOWER TO NEAR 2500 FEET ESPECIALLY NEAR HEAVY SNOW SHOWERS WITH GUSTY WINDS AND DOWNDRAFTS. RESIDENTS AND TRAVELLERS SHOULD BE AWARE OF BLOWING AND DRIFTING SNOW THAT WILL REDUCE VISIBILITIES. COLD TEMPERATURES IN THE 20S AND LOW 30S PLUS STRONG GUSTY WINDS WILL LOWER THE WIND CHILL FACTOR TO NEAR ZERO. PEOPLE TRAVELING IN THE MOUNTAINS ARE URGED TO BE PREPARED FOR WINTER CONDITIONS AND TO CARRY CHAINS...BLANKETS AND WARM CLOTHING. . RADAR INDICATED A GENERAL AREA OF RAIN WAS MOVING INTO SAN DIEGO COUNTY FROM THE PACIFIC WITH SOME HEAVY SHOWERS OVER SATURATED WILL CAUSE HIGHER RUNOFF AND POSSIBLE URBAN STREET FLOODING. MOTORISTS ARE ADVISED TO BE ALERT DURING PERIODS OF HEAVY RAINFALL FOR DANGEROUS DRIVING CONDITIONS. AVOID FLOODED STREETS...UNDERPASSES AND PONDED AREAS WHERE IT IS DIFFICULT TO ASSESS THE WATER DEPTH OR CURRENTS. IN SOME AREAS SATURATED GROUNDS COULD PRODUCE MUDSLIDES AND EROSION PROBLEMS DURING THIS STORMY PERIOD. THE STRONG COLD UPPER LEVEL LOW PRESSURE OVER SOUTHERN CALIFORNIA WATERS RESPONSIBLE FOR OUR STORMY WEATHER CAN PRODUCE THE TYPE OF CONDITIONS THAT ARE ALSO FAVORABLE FOR THE FORMATION OF FUNNEL CLOUDS...WATERSPOUTS AND EVEN A TORNADO THROUGH WEDNESDAY. PERSONS SHOULD TAKE COVER IN THE EVENT ANY OF THESE DANGEROUS SITUATIONS OCCUR..AVOID THEM AND TAKE COVER. DRY WEATHER WILL RETURN THURSDAY AND FRIDAY UNDER BUILDING HIGH PRESSURE BUT NIGHTS WILL TURN COLDER. TONIGHT AND THURSDAY NIGHT THE GROWERS OF SAN DIEGO COUNTY ARE ADVISED THAT SOME FROST PROTECTION MAY BE NECESSARY AS TEMPERATURES IN COLDEST ORCHARDS FALL INTO THE MIDDLE TO UPPER 20S. THE NEXT STATEMENT WILL BE ISSUED AS WARRANTED.
Nearby
Tornado Warnings in California, 1991Every tornado warning in 1991Tornadoes in 1991
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.