Alert archive / California / River Flood Warnings in 2023

River Flood Warning 2, NWS Los Angeles, CA

February 24, 2023Santa Barbara County, California

NWS Los Angeles, CA issued this river flood warning at Feb 24, 2023, 11:58 PM PST for Santa Barbara County, California. It took effect at Feb 25, 2023, 4:00 AM PST. It was in force for 26 hr.

The area

The counties it named.

The facts

Issued: Feb 24, 2023, 11:58 PM PST (07:58 UTC)
In effect from: Feb 25, 2023, 4:00 AM PST
Expired: Feb 26, 2023, 6:09 AM PST
In force: 26 hr
Issued by: NWS Los Angeles, CA
Area: Storm-based polygon
Flood severity: Minor

County Santa Barbara County, CA

The radar

The Vandenberg AFB radar (KVBX), 47 km from the middle of the area, began a volume at 07:58 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 river

Written for the forecast point Santa Ynez River at Narrows (NRWC1).

Action stage: 11 ft
Minor stage: 15 ft
Moderate stage: 23 ft
Major stage: 28 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 11133000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Los Angeles, CA wrote its last area forecast discussion before this river flood warning went out at Feb 24, 10:29 PM PST, 1 hour 29 minutes earlier.

Area forecast discussion, Feb 24, 10:29 PM PST, 1 hour 29 minutes before

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In the hours before

Special weather statement, Feb 24, 7:51 PM PST, 4 hours 7 minutes before

Special Weather Statement
National Weather Service OXNARD CA
751 PM PST Fri Feb 24 2023

CAZ053-352-354-356>358-250415-
Ventura County Beaches CA-Central Ventura County Valleys CA-
Ventura County Mountains CA-Lake Casitas CA-
Santa Ynez Mountains Eastern Range CA-Ojai Valley CA-
751 PM PST Fri Feb 24 2023

...A strong thunderstorm will impact portions of west central Ventura
County through 815 PM PST...

At 751 PM PST, Doppler radar was tracking a strong thunderstorm
capable of producing a landspout 7 miles northwest of Ventura, moving
northeast at 35 mph.

HAZARD...Landspouts and wind gusts of 50 to 55 mph.

SOURCE...Radar indicated.

IMPACT...Minor damage to outdoor objects is possible. Gusty winds
         could knock down tree limbs and blow around unsecured
         objects.

Locations impacted include...
Western Ventura...
Meiners Oaks...
Lake Casitas...
Seacliff...
and Solimar Beach.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3432 11936 3432 11939 3434 11941 3446 11933
      3451 11919 3443 11907 3427 11931
TIME...MOT...LOC 0351Z 224DEG 30KT 3435 11930

LANDSPOUT...POSSIBLE
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH

RM

Special weather statement, Feb 24, 8:00 PM PST, 3 hours 58 minutes before

Special Weather Statement
National Weather Service OXNARD CA
800 PM PST Fri Feb 24 2023

CAZ354-355-358-359-363-550-250500-
Santa Cruz and Anacapa Islands CA-Ventura County Beaches CA-
Central Ventura County Valleys CA-Ventura County Inland Coast CA-
Santa Monica Mountains CA-Southeastern Ventura County Valleys CA-
800 PM PST Fri Feb 24 2023

...Strong thunderstorms will impact portions of southwestern Ventura
County through 900 PM PST...

At 759 PM PST, Doppler radar was tracking strong thunderstorms
capable of producing a landspout along a line extending from near
Ventura Harbor to near Anacapa Island. Movement was east at 15 mph.

HAZARD...Landspouts and wind gusts of 50 to 55 mph.

SOURCE...Radar indicated.

IMPACT...Minor damage to outdoor objects is possible. Gusty winds
         could knock down tree limbs and blow around unsecured
         objects.

Locations impacted include...
Oxnard...
Ventura...
Camarillo...
Port Hueneme...
Ventura Harbor...
Naval Base Ventura County...
Silver Strand Beach...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3411 11909 3410 11910 3410 11912 3414 11919
      3414 11922 3417 11922 3417 11923 3416 11923
      3418 11924 3427 11928 3427 11930 3441 11910
      3409 11905
TIME...MOT...LOC 0359Z 248DEG 11KT 3430 11932 3401 11936

LANDSPOUT...POSSIBLE
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH

RM

Special weather statement, Feb 24, 8:33 PM PST, 3 hours 25 minutes before

Special Weather Statement
National Weather Service OXNARD CA
833 PM PST Fri Feb 24 2023

CAZ053-354-355-358-359-362-363-547-250600-
Ventura County Beaches CA-Central Ventura County Valleys CA-
Ventura County Mountains CA-Ventura County Inland Coast CA-
Santa Monica Mountains CA-Southeastern Ventura County Valleys CA-
Los Angeles County San Fernando Valley CA-Malibu Coast CA-
833 PM PST Fri Feb 24 2023

...Strong thunderstorms will impact portions of southeastern Ventura
and west central Los Angeles Counties through 1000 PM PST...

At 831 PM PST, Doppler radar was tracking strong thunderstorms along
a line extending from near Ojai to 29 miles south of Anacapa Island.
Movement was east at 10 to 15 mph.

HAZARD...Wind gusts of 50 to 55 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Thousand Oaks...
Simi Valley...
Camarillo...Fillmore...
Agoura Hills......
Westlake Village...
Santa Monica Mountains...
and Naval Base Ventura County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3403 11885 3405 11896 3410 11909 3440 11912
      3443 11887 3407 11869 3402 11883
TIME...MOT...LOC 0431Z 259DEG 11KT 3451 11928 3361 11927

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH

RM

Special weather statement, Feb 24, 9:04 PM PST, 2 hours 54 minutes before

Special Weather Statement
National Weather Service OXNARD CA
904 PM PST Fri Feb 24 2023

CAZ053-354-355-358-359-362-363-547-250545-
Ventura County Beaches CA-Central Ventura County Valleys CA-
Ventura County Mountains CA-Ventura County Inland Coast CA-
Santa Monica Mountains CA-Southeastern Ventura County Valleys CA-
Los Angeles County San Fernando Valley CA-Malibu Coast CA-
904 PM PST Fri Feb 24 2023

...Strong thunderstorms will impact portions of south central Ventura
and west central Los Angeles Counties through 945 PM PST...

At 903 PM PST, Doppler radar was tracking strong thunderstorms
capable of producing a landspout along a line extending from near
Ventura to 22 miles south of Point Dume. Movement was northeast at 20
mph.

HAZARD...Landspouts and wind gusts of 50 to 55 mph.

SOURCE...Radar indicated.

IMPACT...Minor damage to outdoor objects is possible. Gusty winds
         could knock down tree limbs and blow around unsecured
         objects.

Locations impacted include...
Oxnard...
Thousand Oaks...
Eastern Ventura...
Camarillo...
Fillmore...
Malibu...
Moorpark...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3403 11885 3405 11896 3408 11904 3409 11906
      3410 11909 3411 11909 3409 11911 3411 11915
      3429 11921 3438 11915 3445 11892 3402 11876
      3402 11878 3400 11881
TIME...MOT...LOC 0503Z 217DEG 19KT 3428 11914 3370 11896

LANDSPOUT...POSSIBLE
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH

RM

Special weather statement, Feb 24, 10:42 PM PST, 1 hour 16 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 24, 4:24 PM PST	Areal Flood Advisory	LOX	San Luis Obispo, Santa Barbara	6 hr
Feb 24, 6:24 PM PST	Areal Flood Advisory	LOX	Los Angeles, Ventura	12 hr
Feb 24, 7:51 PM PST	Special Weather Statement	LOX	Ventura	24 min
Feb 24, 8:00 PM PST	Special Weather Statement	LOX	Ventura	60 min
Feb 24, 8:05 PM PST	Special Marine Warning	LOX		55 min
Feb 24, 8:33 PM PST	Special Weather Statement	LOX	Ventura	87 min
Feb 24, 9:04 PM PST	Special Weather Statement	LOX	Ventura	41 min
Feb 24, 9:08 PM PST	Special Marine Warning	LOX		82 min
Feb 24, 9:09 PM PST	River Flood Warning	LOX	Ventura	5 hr
Feb 24, 9:51 PM PST	Flash Flood Warning Considerable damage threat	LOX	Ventura	3 hr
Feb 24, 9:51 PM PST	Severe Thunderstorm Warning	LOX	Los Angeles, Ventura	54 min
Feb 24, 10:23 PM PST	Areal Flood Advisory	LOX	Los Angeles	6 hr
Feb 24, 10:24 PM PST	Special Marine Warning	LOX		51 min
Feb 24, 10:42 PM PST	Special Weather Statement	LOX	Los Angeles	63 min
Feb 24, 11:20 PM PST	Special Marine Warning	LOX		55 min
Feb 24, 11:26 PM PST	Winter Weather Advisory	LOX	San Luis Obispo, Santa Barbara, Ventura	8 hr
Feb 25, 12:58 AM PST	Special Marine Warning	LOX		47 min
Feb 25, 4:45 AM PST	Areal Flood Advisory	LOX	Los Angeles	5 hr
Feb 25, 7:35 AM PST	Winter Weather Advisory	LOX	Los Angeles, Santa Barbara, Ventura	3 days

Nearby

River Flood Warnings in California, 2023 Every river flood warning in 2023

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.