Alert archive / California / Flash Flood Warnings in 1998

Flash Flood Warning 2, NWS Los Angeles, CA

February 3, 1998Santa Barbara County, Ventura County, California

NWS Los Angeles, CA issued this flash flood warning at Feb 3, 1998, 4:48 AM PST for Santa Barbara County, Ventura County, California. It was in force for 4 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 3, 1998, 4:48 AM PST (12:48 UTC)
Expired
Feb 3, 1998, 8:45 AM PST
In force
4 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 12:47 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, 0.8 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.

Skew-T log-pSkew-T log-p diagram, Vandenberg AFB, CA at 12:00Z on 1998-02-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Vandenberg AFB, CA at 12:00Z on 1998-02-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -33 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
853 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
-33 m²/s²
0-3 km storm-relative helicity
28 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 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 2, 11:30 PM PST, 5 hours 18 minutes before
CAZ034>041-044>047-051>054-059-030745-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OXNARD CA
1130 PM PST MON FEB 2 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 HIGH WIND WARNING IS IN EFFECT UNTIL NOON TUESDAY FOR THE
   FOLLOWING LOCATIONS:

      SAN LUIS OBISPO COUNTY MOUNTAINS
      SANTA BARBARA COUNTY MOUNTAINS
      VENTURA COUNTY MOUNTAINS
      LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE...

...A WIND ADVISORY IS IN EFFECT UNTIL NOON TUESDAY FOR THE
   FOLLOWING LOCATIONS:

      SAN LUIS OBISPO COUNTY COAST AND VALLEYS
      SANTA BARBARA COUNTY COAST AND VALLEYS
      VENTURA COUNTY COAST AND VALLEYS
      LOS ANGELES COUNTY COAST AND VALLEYS EXCLUDING ANTELOPE VALLEY
      SANTA MONICA MOUNTAINS RECREATIONAL AREA...

...A URBAN AND SMALL STREAM FLOOD ADVISORY IS IN EFFECT UNTIL
   TUESDAY FOR THE FOLLOWING LOCATIONS:

      SAN LUIS OBISPO COUNTY
      SANTA BARBARA COUNTY
      VENTURA COUNTY
      LOS ANGELES COUNTY...

...A FLASH FLOOD WATCH IS IN EFFECT UNTIL TUESDAY FOR THE
   FOLLOWING LOCATIONS:

      SAN LUIS OBISPO COUNTY
      SANTA BARBARA COUNTY
      VENTURA COUNTY
      LOS ANGELES COUNTY...

...A FLOOD WATCH IS IN EFFECT UNTIL TUESDAY FOR THE FOLLOWING
   LOCATIONS:

      VENTURA COUNTY...

...A HEAVY SURF ADVISORY IS IN EFFECT UNTIL WEDNESDAY

      FROM POINT PIEDRAS BLANCAS SOUTHWARD TO THE MEXICAN BORDER...

BURKE
Special weather statement, Feb 2, 11:30 PM PST, 5 hours 18 minutes before
CAZ034>041-044>047-051>054-059-030745-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OXNARD CA
1130 PM PST MON FEB 2 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 HIGH WIND WARNING IS IN EFFECT UNTIL NOON TUESDAY FOR THE
   FOLLOWING LOCATIONS:

      SAN LUIS OBISPO COUNTY MOUNTAINS
      SANTA BARBARA COUNTY MOUNTAINS
      VENTURA COUNTY MOUNTAINS
      LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE...

...A WIND ADVISORY IS IN EFFECT UNTIL NOON TUESDAY FOR THE
   FOLLOWING LOCATIONS:

      SAN LUIS OBISPO COUNTY COAST AND VALLEYS
      SANTA BARBARA COUNTY COAST AND VALLEYS
      VENTURA COUNTY COAST AND VALLEYS
      LOS ANGELES COUNTY COAST AND VALLEYS EXCLUDING ANTELOPE VALLEY
      SANTA MONICA MOUNTAINS RECREATIONAL AREA...

...A URBAN AND SMALL STREAM FLOOD ADVISORY IS IN EFFECT UNTIL
   TUESDAY FOR THE FOLLOWING LOCATIONS:

      SAN LUIS OBISPO COUNTY
      SANTA BARBARA COUNTY
      VENTURA COUNTY
      LOS ANGELES COUNTY...

...A FLASH FLOOD WATCH IS IN EFFECT UNTIL TUESDAY FOR THE
   FOLLOWING LOCATIONS:

      SAN LUIS OBISPO COUNTY
      SANTA BARBARA COUNTY
      VENTURA COUNTY
      LOS ANGELES COUNTY...

...A FLOOD WATCH IS IN EFFECT UNTIL TUESDAY FOR THE FOLLOWING
   LOCATIONS:

      VENTURA COUNTY...

...A HEAVY SURF ADVISORY IS IN EFFECT UNTIL WEDNESDAY

      FROM POINT PIEDRAS BLANCAS SOUTHWARD TO THE MEXICAN BORDER...

BURKE
Special weather statement, Feb 3, 3:45 AM PST, 1 hour 3 minutes before
CAZ034>041-044>047-051>054-059-031200-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OXNARD CA
345 AM PST TUE FEB 3 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 SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 8 AM FOR THE
   FOLLOWING LOCATIONS:

     LOS ANGELES COUNTY
     VENTURA COUNTY
     SANTA BARBARA COUNTY
     EAST SANTA BARBARA CHANNEL
     INNER WATERS PT MUGU TO SAN MATEO POINT AND OUT 60 NM
     PT PIEDRAS BLANCAS TO PT ARGUELLO AND OUT 60 NM
     OUTER WATERS SANTA CRUZ ISLAND TO THE MEXICAN BORDER

...A FLASH FLOOD WATCH IS IN EFFECT UNTIL 9 PM FOR:

      LOS ANGELES COUNTY SAN LUIS OBISPO COUNTY SANTA BARBARA
      COUNTY VENTURA COUNTY...

...A FLOOD WATCH IS IN EFFECT UNTIL 9 PM FOR:

      VENTURA COUNTY...

...A HIGH WIND WARNING IS IN EFFECT UNTIL 600 AM FOR:

      SAN LUIS OBISPO COUNTY COAST AND VALLEYS
      SANTA BARBARA COUNTY COAST AND VALLEYS...

...A HIGH WIND WARNING IS IN EFFECT UNTIL NOON TUESDAY FOR:

      SAN LUIS OBISPO COUNTY MOUNTAINS
      SANTA BARBARA COUNTY MOUNTAINS
      VENTURA COUNTY MOUNTAINS
      LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE...

...A WIND ADVISORY IS IN EFFECT UNTIL NOON TUESDAY FOR:

      VENTURA COUNTY COAST AND VALLEYS
      LOS ANGELES COUNTY COAST AND VALLEYS EXCLUDING ANTELOPE VALLEY
      SANTA MONICA MOUNTAINS RECREATIONAL AREA...

...A URBAN AND SMALL STREAM FLOOD ADVISORY IS IN EFFECT UNTIL
   9 PM FOR:

      SAN LUIS OBISPO COUNTY
      SANTA BARBARA COUNTY
      VENTURA COUNTY
      LOS ANGELES COUNTY...

...A FLASH FLOOD WATCH IS IN EFFECT UNTIL 9 PM FOR:

      SAN LUIS OBISPO COUNTY
      SANTA BARBARA COUNTY
      VENTURA COUNTY
      LOS ANGELES COUNTY...

...A FLOOD WATCH IS IN EFFECT UNTIL 9 PM FOR:

      VENTURA COUNTY...

...A HEAV(Y SURF ADVISORY IS IN EFFECT UNTIL WEDNESDAY FOR:

      POINT PIEDRAS BLANCAS SOUTHWARD TO THE MEXICAN BORDER...

BURKE
Special weather statement, Feb 3, 3:45 AM PST, 1 hour 3 minutes before
CAZ034>041-044>047-051>054-059-031200-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OXNARD CA
345 AM PST TUE FEB 3 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 SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 8 AM FOR THE
   FOLLOWING LOCATIONS:

     LOS ANGELES COUNTY
     VENTURA COUNTY
     SANTA BARBARA COUNTY
     EAST SANTA BARBARA CHANNEL
     INNER WATERS PT MUGU TO SAN MATEO POINT AND OUT 60 NM
     PT PIEDRAS BLANCAS TO PT ARGUELLO AND OUT 60 NM
     OUTER WATERS SANTA CRUZ ISLAND TO THE MEXICAN BORDER

...A FLASH FLOOD WATCH IS IN EFFECT UNTIL 9 PM FOR:

      LOS ANGELES COUNTY SAN LUIS OBISPO COUNTY SANTA BARBARA
      COUNTY VENTURA COUNTY...

...A FLOOD WATCH IS IN EFFECT UNTIL 9 PM FOR:

      VENTURA COUNTY...

...A HIGH WIND WARNING IS IN EFFECT UNTIL 600 AM FOR:

      SAN LUIS OBISPO COUNTY COAST AND VALLEYS
      SANTA BARBARA COUNTY COAST AND VALLEYS...

...A HIGH WIND WARNING IS IN EFFECT UNTIL NOON TUESDAY FOR:

      SAN LUIS OBISPO COUNTY MOUNTAINS
      SANTA BARBARA COUNTY MOUNTAINS
      VENTURA COUNTY MOUNTAINS
      LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE...

...A WIND ADVISORY IS IN EFFECT UNTIL NOON TUESDAY FOR:

      VENTURA COUNTY COAST AND VALLEYS
      LOS ANGELES COUNTY COAST AND VALLEYS EXCLUDING ANTELOPE VALLEY
      SANTA MONICA MOUNTAINS RECREATIONAL AREA...

...A URBAN AND SMALL STREAM FLOOD ADVISORY IS IN EFFECT UNTIL
   9 PM FOR:

      SAN LUIS OBISPO COUNTY
      SANTA BARBARA COUNTY
      VENTURA COUNTY
      LOS ANGELES COUNTY...

...A FLASH FLOOD WATCH IS IN EFFECT UNTIL 9 PM FOR:

      SAN LUIS OBISPO COUNTY
      SANTA BARBARA COUNTY
      VENTURA COUNTY
      LOS ANGELES COUNTY...

...A FLOOD WATCH IS IN EFFECT UNTIL 9 PM FOR:

      VENTURA COUNTY...

...A HEAV(Y SURF ADVISORY IS IN EFFECT UNTIL WEDNESDAY FOR:

      POINT PIEDRAS BLANCAS SOUTHWARD TO THE MEXICAN BORDER...

BURKE
Special weather statement, Feb 3, 3:54 AM PST, 54 minutes before
CAZ034>041-044>047-051>054-059-031800-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OXNARD CA
4000 AM PST MON FEB 2 1998

...A MAJOR STORM IS MOVING ACROSS CENTRAL AND SOUTHERN CALIFORNIA...

THE MAIN COLD FRONTAL BAND WILL MOVE ACROSS CENTRAL AND SOUTHERN
CALIFORNIA THIS MORNING AND EARLY AFTERNOON. THIS FRONTAL BAND
CONTAINS NUMEROUS THUNDERSTORMS AND SHOWERS. THE FRONTAL BAND IS
EXPECTED TO CLEAR SANTA BARBARA AND SAN LUIS OBISPO COUNTIES AROUND
8 AM...VENTURA COUNTY LATE MORNING...AND LOS ANGELES COUNTY EARLY
AFTERNOON. FOLLOWING THE FRONTAL BAND...SCATTERED TO WIDESPREAD
SHOWERS WILL CONTINUE FOR MUCH OF THE DAY. MOST OF THE FORECAST
RAINFALL IS EXPECTED TO FALL THROUGH THIS AFTERNOON.

...FORECAST RAINFALL TOTALS THROUGH TONIGHT...

   ...SAN LUIS OBISPO COUNTY...
      COAST AND VALLEYS...................1 TO 2 INCHES
      FOOTHILLS AND MOUNTAINS.............2 TO 4 INCHES

   ...SANTA BARBARA COUNTY...
      CENTRAL COAST AND CUYAMA VALLEY.....1 TO 3 INCHES
      SOUTH COAST.........................2 TO 4 INCHES
      MOUNTAINS AND SANTA YNEZ VALLEY.....3 TO 5 INCHES

   ...VENTURA COUNTY...
      COAST AND VALLEYS...................2 TO 3 INCHES
      FOOTHILLS AND MOUNTAINS.............3 TO 5 INCHES

   ...LOS ANGELES COUNTY...
      COASTAL PLAIN.......................2 TO 3 INCHES
      SAN FERNANDO VALLEY.................2 TO 3 INCHES
      SANTA MONICA MOUNTAINS.............h.2 TO 4 INCHES
      SAN GABRIEL MOUNTAINS...............3 TO 5 INCHES
      ANTELOPE VALLEY................0.50 TO 1.5 INCHES

MARTIN

The office that day

Everything else NWS Los Angeles, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 3, 2:55 AM PSTSevere Thunderstorm WarningLOXSan Luis Obispo, Santa Barbara110 min
Feb 3, 4:11 AM PSTFlash Flood WarningLOXLos Angeles4 hr
Feb 3, 5:30 AM PSTSevere Thunderstorm WarningLOXVentura60 min
Feb 3, 6:39 AM PSTSevere Thunderstorm WarningLOXLos Angeles66 min
Feb 3, 7:50 AM PSTSevere Thunderstorm WarningLOXLos Angeles55 min
Feb 3, 9:05 AM PSTFlash Flood WarningLOXSanta Barbara, Ventura3 hr
Feb 3, 9:05 AM PSTFlash Flood WarningLOXLos Angeles3 hr
Feb 3, 10:05 AM PSTSevere Thunderstorm WarningLOXVentura55 min
Feb 3, 11:50 AM PSTFlash Flood WarningLOXSanta Barbara, Ventura3 hr
Feb 3, 11:50 AM PSTFlash Flood WarningLOXLos Angeles3 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.