Alert archive / California / Flash Flood Warnings in 1998
Flash Flood Warning 19, NWS Los Angeles, CA
NWS Los Angeles, CA issued this flash flood warning at Feb 23, 1998, 9:35 AM PST for Santa Barbara County, Ventura County, California. It was in force for 8 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Feb 23, 1998, 9:35 AM PST (17:35 UTC)
- Expired
- Feb 23, 1998, 6:00 PM PST
- In force
- 8 hr
- Issued by
- NWS Los Angeles, CA
- Area
- Whole counties
Counties Santa Barbara County, CA, Ventura County, CA
The radar
The Los Angeles radar (KVTX), 37 km from the middle of the area, began a volume at 17:39 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
Vandenberg AFB, CA (KVBG), launched 12:00Z, 5.6 hours before the alert went out and 90 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
- 13 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 612 m above ground
- 0-6 km bulk shear
- 70 kt
- 0-1 km storm-relative helicity
- 163 m²/s²
- 0-3 km storm-relative helicity
- 220 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 KLAX 231740 COR FFWLAX CAC083-111-231900- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING...CORRECTED...EXPIRES AT 6PM TODAY... NATIONAL WEATHER SERVICE OXNARD CA 935 AM PST MON FEB 23 1998 ...A FLASH FLOOD WARNING HAS BEEN ISSUED UNTIL 6 PM FOR THE FOLLOWING LOCATIONS: SANTA BARBARA COUNTY SOUTH COAST SANTA YNEZ MOUNTAIN RANGE WESTERN VENTURA COUNTY MODERATE RAINFALL HAS BEEN FALLING FOR SEVERAL HOURS ACROSS PORTIONS OF SANTA BARBARA AND WESTERN VENTURA COUNTIES THIS MORNING. THUS...A FLASH FLOOD WARNING HAS BEEN ISSUED UNTIL 6 PM FOR THE SANTA BARBARA COUNTY SOUTH COAST AND THE SANTA YNEZ MOUNTAIN RANGE AS WELL AS THE WESTERN PORTIONS OF VENTURA COUNTY. SYCAMORE CREEK IS NEAR BANKFULL AND MISSION CREEK IS RISING RAPIDLY. RAINFALL RATES HAVE BEEN OVER 1 INCH AN HOUR SINCE 7 AM WITH OVERNIGHT TOTALS OF NEAR 5 INCHES BEING REPORTED AT GIBRALTER DAM. OVERNIGHT RAINFALL REPORTS ACROSS THE WARNING AREA INCLUDE: MATILIJA DAM..............................4.96 INCHES WHITE LEDGE PEAK..........................5.43 INCHES A FLASH FLOOD WARNING MEANS THAT FLASH FLOODING IS OCCURRING OR IS IMMINENT. FOLLOW DIRECTIONS OF EMERGENCY PREPAREDNESS OFFICIALS AND EVACUATE IF R&EQUESTED TO DO SO. PERSONS IN THE WARNING AREA SHOULD BE PREPARED TO MOVE IMMEDIATELY TO HIGHER GROUND...WITHOUT WAITING FOR INSTRUCTIONS...IF HEAVY FLOWS OF WATER OR DEBRIS ARE OBSERVED IN THEIR AREA. BURKE/MCCLUNG
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, Feb 23, 5:00 AM PST, 4 hours 35 minutes before
CAZ034>041-044>047-051>054-059-231800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE OXNARD CA 500 AM PST MON FEB 23 1998 ...FORECAST RAINFALL TOTALS FOR THE STORM TODAY... A STRONG PACIFIC STORM WILL MOVE INTO CENTRAL AND SOUTHERN CALIFORNIA TODAY AND ACROSS SOUTHERN CALIFORNIA TONIGHT. THE FOLLOWING ARE FORECAST RAINFALL TOTALS FOR 4 AM TODAY THROUGH 4 AM TUESDAY. ...SAN LUIS OBISPO COUNTY... CENTRAL COAST.................1.5 TO 2.5 INCHES. INTERIOR VALLEYS..................1 TO 2 INCHES. MOUNTAINS.....................2.5 TO 3.5 INCHES. ...SANTA BARBARA COUNTY... CENTRAL COAST.....................2 TO 4 INCHES. SOUTH COAST.......................3 TO 5 INCHES. SANTA YNEZ VALLEY.................5 TO 9 INCHES. SANTA YNEZ MOUNTAINS..............5 TO 9 INCHES. SIERRA MADRE MOUNTAINS............4 TO 8 INCHES. CUYAMA VALLEY.................1.5 TO 2.5 INCHES. ...VENTURA COUNTY... COAST AND VALLEYS.................3 TO 6 INCHES. MOUNTAINS.........................5 TO 9 INCHES. ...LOS ANGELES COUNTY... COASTAL PLAIN.....................2 TO 4 INCHES. SANTA MONICA MOUNTAINS............4 TO 7 INCHES. COASTAL VALLEYS...................3 TO 6 INCHES. SAN GABRIEL MOUNTAINS.............5 TO 9 INCHES. ANTELOPE VALLEY...................1 TO 3 INCHES. MARTIN
Special weather statement, Feb 23, 5:00 AM PST, 4 hours 35 minutes before
CAZ034>041-044>047-051>054-059-231800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE OXNARD CA 500 AM PST MON FEB 23 1998 ...FORECAST RAINFALL TOTALS FOR THE STORM TODAY... A STRONG PACIFIC STORM WILL MOVE INTO CENTRAL AND SOUTHERN CALIFORNIA TODAY AND ACROSS SOUTHERN CALIFORNIA TONIGHT. THE FOLLOWING ARE FORECAST RAINFALL TOTALS FOR 4 AM TODAY THROUGH 4 AM TUESDAY. ...SAN LUIS OBISPO COUNTY... CENTRAL COAST.................1.5 TO 2.5 INCHES. INTERIOR VALLEYS..................1 TO 2 INCHES. MOUNTAINS.....................2.5 TO 3.5 INCHES. ...SANTA BARBARA COUNTY... CENTRAL COAST.....................2 TO 4 INCHES. SOUTH COAST.......................3 TO 5 INCHES. SANTA YNEZ VALLEY.................5 TO 9 INCHES. SANTA YNEZ MOUNTAINS..............5 TO 9 INCHES. SIERRA MADRE MOUNTAINS............4 TO 8 INCHES. CUYAMA VALLEY.................1.5 TO 2.5 INCHES. ...VENTURA COUNTY... COAST AND VALLEYS.................3 TO 6 INCHES. MOUNTAINS.........................5 TO 9 INCHES. ...LOS ANGELES COUNTY... COASTAL PLAIN.....................2 TO 4 INCHES. SANTA MONICA MOUNTAINS............4 TO 7 INCHES. COASTAL VALLEYS...................3 TO 6 INCHES. SAN GABRIEL MOUNTAINS.............5 TO 9 INCHES. ANTELOPE VALLEY...................1 TO 3 INCHES. MARTIN
Special weather statement, Feb 23, 5:45 AM PST, 3 hours 50 minutes before
CAZ034>041-044>047-051>054-059-231445-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OXNARD CA
545 AM PST MON FEB 23 1998
FOLLOWING IS A LIST OF ALL WARNINGS...WATCHES AND ADVISORY
CURRENTLY IN EFFECT FOR THE FORECAST AREA COVERED BY
THE NATIONAL WEATHER SERVICE IN OXNARD CALIFORNIA
...A URBAN AND SMALL STREAM FLOOD ADVISORY IS IN EFFECT UNTIL 6
PM FOR THE FOLLOWING LOCATIONS:
LOS ANGELES COUNTY EXCEPT FOR THE ANTELOPE VALLEY...
...A URBAN AND SMALL STREAM FLOOD ADVISORY IS IN EFFECT UNTIL 6
PM FOR THE FOLLOWING LOCATIONS:
SANTA BARBARA COUNTY EXCEPT FOR THE CUYAMA VALLEY
VENTURA COUNTY...
...A FLASH FLOOD WATCH IS IN EFFECT UNTIL 9 PM FOR THE FOLLOWING
LOCATIONS:
SAN LUIS OBISPO COUNTY EXCEPT FOR THE INTERIOR VALLEYS
SANTA BARBARA COUNTY EXCEPT FOR THE CUYAMA VALLEY
VENTURA COUNTY
LOS ANGELES COUNTY EXCEPT FOR THE ANTELOPE VALLEY...
...A WINTER STORM WATCH IS IN EFFECT UNTIL FOR TONIGHT BETWEEN
5000 AND 7000 FEET FEET FOR THE FOLLOWING LOCATIONS:
VENTURA COUNTY MOUNTAINS
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE...
...A HEAVY SURF ADVISORY IS IN EFFECT UNTIL TUESDAY
FROM POINT PIEDRAS BLANCAS TO THE MEXICAN BORDER...Special weather statement, Feb 23, 5:45 AM PST, 3 hours 50 minutes before
CAZ034>041-044>047-051>054-059-231445-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OXNARD CA
545 AM PST MON FEB 23 1998
FOLLOWING IS A LIST OF ALL WARNINGS...WATCHES AND ADVISORY
CURRENTLY IN EFFECT FOR THE FORECAST AREA COVERED BY
THE NATIONAL WEATHER SERVICE IN OXNARD CALIFORNIA
...A URBAN AND SMALL STREAM FLOOD ADVISORY IS IN EFFECT UNTIL 6
PM FOR THE FOLLOWING LOCATIONS:
LOS ANGELES COUNTY EXCEPT FOR THE ANTELOPE VALLEY...
...A URBAN AND SMALL STREAM FLOOD ADVISORY IS IN EFFECT UNTIL 6
PM FOR THE FOLLOWING LOCATIONS:
SANTA BARBARA COUNTY EXCEPT FOR THE CUYAMA VALLEY
VENTURA COUNTY...
...A FLASH FLOOD WATCH IS IN EFFECT UNTIL 9 PM FOR THE FOLLOWING
LOCATIONS:
SAN LUIS OBISPO COUNTY EXCEPT FOR THE INTERIOR VALLEYS
SANTA BARBARA COUNTY EXCEPT FOR THE CUYAMA VALLEY
VENTURA COUNTY
LOS ANGELES COUNTY EXCEPT FOR THE ANTELOPE VALLEY...
...A WINTER STORM WATCH IS IN EFFECT UNTIL FOR TONIGHT BETWEEN
5000 AND 7000 FEET FEET FOR THE FOLLOWING LOCATIONS:
VENTURA COUNTY MOUNTAINS
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE...
...A HEAVY SURF ADVISORY IS IN EFFECT UNTIL TUESDAY
FROM POINT PIEDRAS BLANCAS TO THE MEXICAN BORDER...Special weather statement, Feb 23, 6:45 AM PST, 2 hours 50 minutes before
CAZ034>041-044>047-051>054-059-231545-
SPECIAL WEATHER STATEMENT ...CORRECTION...
NATIONAL WEATHER SERVICE OXNARD CA
645 AM PST MON FEB 23 1998
FOLLOWING IS A LIST OF ALL WARNINGS...WATCHES AND ADVISORY
CURRENTLY IN EFFECT FOR THE FORECAST AREA COVERED BY
THE NATIONAL WEATHER SERVICE IN OXNARD CALIFORNIA
...A WINTER STORM WARNING IS IN EFFECT THROUGH TONIGHT ABOVE
7000 FOR THE FOLLOWING LOCATIONS:
VENTURA COUNTY MOUNTAINS
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE...
...A WINTER STORM WATCH IS IN EFFECT THROUGH FOR TONIGHT
BETWEEN 5000 AND 7000 FEET FEET FOR THE FOLLOWING LOCATIONS:
VENTURA COUNTY MOUNTAINS
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE...
...A URBAN AND SMALL STREAM FLOOD ADVISORY IS IN EFFECT UNTIL 6 PM
FOR THE FOLLOWING LOCATIONS:
SANTA BARBARA COUNTY EXCEPT FOR THE CUYAMA VALLEY
VENTURA COUNTY...
LOS ANGELES COUNTY EXCEPT FOR THE ANTELOPE VALLEY...
...A FLASH FLOOD WATCH IS IN EFFECT UNTIL 9 PM FOR THE FOLLOWING
LOCATIONS:
SAN LUIS OBISPO COUNTY EXCEPT FOR THE INTERIOR VALLEYS
SANTA BARBARA COUNTY EXCEPT FOR THE CUYAMA VALLEY
VENTURA COUNTY
LOS ANGELES COUNTY EXCEPT FOR THE ANTELOPE VALLEY...
...A HEAVY SURF ADVISORY IS IN EFFECT UNTIL TUESDAY
FROM POINT PIEDRAS BLANCAS TO THE MEXICAN BORDER...Special weather statement, Feb 23, 6:45 AM PST, 2 hours 50 minutes before
CAZ034>041-044>047-051>054-059-231545-
SPECIAL WEATHER STATEMENT ...CORRECTION...
NATIONAL WEATHER SERVICE OXNARD CA
645 AM PST MON FEB 23 1998
FOLLOWING IS A LIST OF ALL WARNINGS...WATCHES AND ADVISORY
CURRENTLY IN EFFECT FOR THE FORECAST AREA COVERED BY
THE NATIONAL WEATHER SERVICE IN OXNARD CALIFORNIA
...A WINTER STORM WARNING IS IN EFFECT THROUGH TONIGHT ABOVE
7000 FOR THE FOLLOWING LOCATIONS:
VENTURA COUNTY MOUNTAINS
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE...
...A WINTER STORM WATCH IS IN EFFECT THROUGH FOR TONIGHT
BETWEEN 5000 AND 7000 FEET FEET FOR THE FOLLOWING LOCATIONS:
VENTURA COUNTY MOUNTAINS
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE...
...A URBAN AND SMALL STREAM FLOOD ADVISORY IS IN EFFECT UNTIL 6 PM
FOR THE FOLLOWING LOCATIONS:
SANTA BARBARA COUNTY EXCEPT FOR THE CUYAMA VALLEY
VENTURA COUNTY...
LOS ANGELES COUNTY EXCEPT FOR THE ANTELOPE VALLEY...
...A FLASH FLOOD WATCH IS IN EFFECT UNTIL 9 PM FOR THE FOLLOWING
LOCATIONS:
SAN LUIS OBISPO COUNTY EXCEPT FOR THE INTERIOR VALLEYS
SANTA BARBARA COUNTY EXCEPT FOR THE CUYAMA VALLEY
VENTURA COUNTY
LOS ANGELES COUNTY EXCEPT FOR THE ANTELOPE VALLEY...
...A HEAVY SURF ADVISORY IS IN EFFECT UNTIL TUESDAY
FROM POINT PIEDRAS BLANCAS TO THE MEXICAN BORDER...The office that day
Everything else NWS Los Angeles, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 23, 12:40 PM PST | Flash Flood Warning | LOX | Los Angeles, Ventura | 5 hr |
Nearby
Flash Flood Warnings in California, 1998Every flash flood warning in 1998
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.