Alert archive / California / Flash Flood Warnings in 1990
Flash Flood Warning 1, NWS San Diego, CA
NWS San Diego, CA issued this flash flood warning at Jun 9, 1990, 2:20 PM PDT for San Diego County, California. It was in force for 55 min.
The area
The counties it named.
The facts
- Issued
- Jun 9, 1990, 2:20 PM PDT (21:20 UTC)
- Expired
- Jun 9, 1990, 3:15 PM PDT
- In force
- 55 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, 9.3 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1626 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 17 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 092122 FFWSAN CAC073-092215- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SAN DIEGO CA 220 PM PDT SAT JUN 9 1990 THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 315 PM PDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHWEST CALIFORNIA ...SOUTHEASTERN SAN DIEGO COUNTY MOUNT LAGUNA RADAR INDICATES HEAVY THUNDERSTORMS AND HEAVY RAINS IN SOUTHEAST SAN DIEGO COUNTY ALONG HIGHWAY 8 AROUND BOULEVARD... JACUMBA TO THE IMPERIAL COUNTY LINE. THESE HEAVY THUNDERSTORMS CONTINUE TO INTENSIFY AND REMAIN STATIONARY. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY +BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. SHIGEHARA
What forecasters said that day
The local office's own words before this flash flood 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, Jun 9, 11:20 AM PDT, 3 hours before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN DIEGO CA 11 AM PDT SAT JUN 09 1990 ...FLASH FLOOD WATCH FOR SAN DIEGO MOUNTAINS... ...MORE RAIN AND THUNDERSTORMS FOR SAN DIEGO THROUGH TONIGHT... THE REMAINS OF ONCE HURRICANE BORIS IS RESPONSIBLE FOR THE THUNDERSTORMS AND RAIN IN SAN DIEGO. THE REMAINS OF BORIS WILL PASS THROUGH SAN DIEGO TODAY AND TONIGHT BRINGING ADDITIONAL RAINS AND THUNDERTORMS. RAINFALL FROM THUNDERSTORMS COULD BE BRIEFLY HEAVY CAUSING LOCAL DOWNPOURS. A FLASH FLOOD WATCH HAS BEEN ISSUED FOR THE MOUNTAINS OF SAN DIEGO TODAY AND TONIGHT WHERE RAINFALL AMOUNTS ARE ESTIMATED UP TO AN INCH. ELSEWHERE IN SAN DIEGO RAINFALL AMOUNTS ARE ESTIMATED A HALF INCH. AS OF 11 AM THIS MORNING FOR THE PAST 24 HOURS LINDBERGH FIELD RECEIVED 0.38 INCH. OTHER RAINFALL AMOUNTS FOR THE PAST 24 HOURS WERE 0.28 INCH AT LA MESA...0.28 INCH AT LOS COCHES CREEK...0.24 INCH AT CUYAMACA... 0.04 INCH AT RAMONA AND 0.04 INCH AT BARONA. DURING DOWNPOURS THAT CAN CAUSE URBAN STREET FLOODING TODAY THROUGH SUNDAY MORNING AND POSSIBLE FLASH FLOODING IN THE MOUNTAINS... MOTORISTS ARE URGED TO USE CAUTION. SHIGEHARA
Special weather statement, Jun 9, 12:38 PM PDT, 1 hour 42 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN DIEGO CA 12.30 PM PDT SAT JUN 09 1990 ...FLASH FLOOD WATCH FOR SAN DIEGO MOUNTAINS... ...MORE RAIN AND THUNDERSTORMS FOR SAN DIEGO THROUGH TONIGHT... NOON RADAR REPORT FROM MOUNT LAGUNA INDICATED AN AREA OF HEAVY THUNDERSTORMS IN AN AREA BETWEEN CAMPO AND BOULEVARD NEAR THE MEXICAN BORDER. THESE LOCALIZED HEAVY THUNDERTORMS HAVE REMAINED STATIONARY FOR THE PAST HALF HOUR AND RADAR SUGGESTS THERE COULD BE POTENTIAL FLOODING IN CAMPO CREED EAST OF CAMPO. RESIDENTS AROUND CAMPO ARE ADVISED OF THIS SITUATION THAT FLASH FLOODING EAST OF CAMPO IN CAMPO CREED IS POSSIBLE. A FLASH FLOOD WATCH REMAINS IN EFFECT FOR SAN DIEGO COUNTYk MOUNTAINS TODAY AND TONIGHT. SHIGEHARA
Special weather statement, Jun 9, 1:56 PM PDT, 24 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN DIEGO CA 1.45 PM PDT SAT JUN 09 1990 ...FLASH FLOOD WATCH FOR SAN DIEGO MOUNTAINS TIL 9PM TONIGHT... ...MORE RAIN AND THUNDERSTORMS FOR SAN DIEGO... THE SAN DIEGO COUNTY ALERT RAIN GAGE AT TIERRA DEL SOL JUST TO THE SOUTHWEST OF BOULEVARD CORROBORATES THE HEAVY RAINS FALLING FROM A HEAVY STATIONARY THUNDERTORM REPORTED BY THE MOUNT LAGUNA RADAR. THE HEAVY RAINS CONTINUE TO FALL ALONG A RIDGELINE AND PART OF THE HEAVY RAINS ARE DRAINING INTO CAMP CREEK WHILE THE OTHER PART IS DRAINING TO THE EAST. SINCE 11 AM THIS MORNING THE TIERRA DEL SOL RAIN GAGE REPORTED 2.36 INCH AS OF THIS REPORT. MOUNT LAGUNA RADAR INDICATES THE THUNDERSTORM ACTIVITY CONTINUES HEAVY AND PERSISTENT AND THE FLOODING POTENTIAL REMAINS HIGH BETWEEN BOULEVARD AND CAMPO. THE NATIONAL WEATHER SERVICE URGES PEOPLE TO STAY AWAY FROM THE AREA MENTIONED DUE TO HEAVY RAINS AND POTENTIAL FLOODING. A FLASH FLOOD WATCH REMAINS IN EFFECT IN SAN DIEGO MOUNTAINS TIL 9PM TONIGHT. SHIGEHARA
The office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 9, 3:12 PM PDT | Flash Flood Warning | SGX | Imperial | 63 min |
Nearby
Flash Flood Warnings in California, 1990Every flash flood warning 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.