Alert archive / California / Flash Flood Warnings in 2024
Flash Flood Warning 4, NWS Los Angeles, CA
NWS Los Angeles, CA issued this flash flood warning at Feb 4, 2024, 3:41 PM PST for Los Angeles 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 4, 2024, 3:41 PM PST (23:41 UTC)
- Expired
- Feb 5, 2024, 12:00 AM PST
- In force
- 8 hr
- Issued by
- NWS Los Angeles, CA
- Area
- Storm-based polygon
- Flood severity
- None
County Los Angeles County, CA
The radar
The Santa Ana Mts radar (KSOX), 71 km from the middle of the area, began a volume at 23:42 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, 11.7 hours before the alert went out and 214 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
- 597 m above ground
- 0-6 km bulk shear
- 68 kt
- 0-1 km storm-relative helicity
- 696 m²/s²
- 0-3 km storm-relative helicity
- 987 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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.
NWS Los Angeles, CA wrote its last area forecast discussion before this flash flood warning went out at Feb 4, 3:15 PM PST, 26 minutes earlier.
Area forecast discussion, Feb 4, 3:15 PM PST, 26 minutes before
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</html>In the hours before
Local storm report, Feb 4, 12:40 PM PST, 3 hours 1 minute before
Preliminary Local Storm Report
National Weather Service Los Angeles/Oxnard CA
1240 PM PST Sun Feb 4 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0920 AM Non-Tstm Wnd Gst 2 NNE Los Olivos 34.70N 120.10W
02/04/2024 M58 MPH Santa Barbara CA Mesonet
Mesonet station TT480 Sbcfd Portable 1.
1210 PM Non-Tstm Wnd Gst 1 SE Santa Ynez 34.60N 120.09W
02/04/2024 M58 MPH Santa Barbara CA Mesonet
Mesonet station AP901 Santa Ynez.
0700 AM Non-Tstm Wnd Gst Refugio State Beach 34.46N 120.08W
02/04/2024 M59 MPH Santa Barbara CA Mesonet
Mesonet station 623SE Sce Refugio Beach.
1000 AM Non-Tstm Wnd Gst 3 ENE Cayucos 35.46N 120.86W
02/04/2024 M59 MPH San Luis Obispo CA Mesonet
Mesonet station PG569 Whale Rock Rsvr (PGE).
1010 AM Non-Tstm Wnd Gst 3 SW Guadalupe 34.93N 120.61W
02/04/2024 M59 MPH Santa Barbara CA Mesonet
Mesonet station 417PG Guadalupe.
1220 PM Non-Tstm Wnd Gst 6 ENE Santa Margarita 35.41N 120.53W
02/04/2024 M59 MPH San Luis Obispo CA Mesonet
Mesonet station PG190 Flying Lady Rd (PGE).
0900 AM Non-Tstm Wnd Gst 5 W Lompoc 34.67N 120.55W
02/04/2024 M60 MPH Santa Barbara CA Mesonet
Mesonet station 449PG Renwick Ave.
0928 AM Non-Tstm Wnd Gst 2 N Orcutt 34.90N 120.45W
02/04/2024 M60 MPH Santa Barbara CA ASOS
ASOS station KSMX Santa Maria Apt.
1120 AM Non-Tstm Wnd Gst 1 E Big Pines 34.38N 117.66W
02/04/2024 M60 MPH Los Angeles CA Mesonet
Mesonet station SE547 Ford Observatory
(SCE).
1210 PM Non-Tstm Wnd Gst 5 NNE Goleta 34.50N 119.79W
02/04/2024 M60 MPH Santa Barbara CA Mesonet
Mesonet station 422SE Painted Cave Rd (SCE).
0902 AM Non-Tstm Wnd Gst 3 SSE San Luis Obispo 35.23N 120.63W
02/04/2024 M61 MPH San Luis Obispo CA ASOS
ASOS station KSBP San Luis Obispo Apt.
0935 AM Non-Tstm Wnd Gst 1 WSW Figueroa Mountain 34.73N 120.01W
02/04/2024 M61 MPH Santa Barbara CA Mesonet
Mesonet station FGMC1 Figueroa Mountain
RAWS.
1020 AM Non-Tstm Wnd Gst Gaviota 34.47N 120.21W
02/04/2024 M61 MPH Santa Barbara CA Mesonet
Mesonet station SE239 Gaviota (SCE).
0819 AM Non-Tstm Wnd Gst 4 SSW Lompoc 34.60N 120.49W
02/04/2024 M62 MPH Santa Barbara CA Mesonet
Mesonet station EW2332 Lompoc.
0950 AM Non-Tstm Wnd Gst 2 WSW Santa Margarita 35.36N 120.66W
02/04/2024 M62 MPH San Luis Obispo CA Mesonet
Mesonet station PG119 TV Towers (PGE).
1046 AM Non-Tstm Wnd Gst 5 WSW Figueroa Mountain 34.73N 120.07W
02/04/2024 M62 MPH Santa Barbara CA Mesonet
Mesonet station TT594 Sbcfd Portable 2.
1150 AM Non-Tstm Wnd Gst 3 WNW Refugio State Bea 34.48N 120.12W
02/04/2024 M62 MPH Santa Barbara CA Mesonet
Mesonet station 367SE Sce Coastal View.
1134 AM Non-Tstm Wnd Gst 5 W Lompoc 34.67N 120.56W
02/04/2024 M63 MPH Santa Barbara CA Mesonet
Mesonet station TT414 Vandenberg Portable.
0930 AM Non-Tstm Wnd Gst 10 WNW Gaviota 34.52N 120.38W
02/04/2024 M64 MPH Santa Barbara CA Mesonet
Mesonet station SE687 Dangemond (SCE).
1000 AM Non-Tstm Wnd Gst 5 E Cambria 35.53N 121.00W
02/04/2024 M64 MPH San Luis Obispo CA Mesonet
Mesonet station PG594 Green Valley Rd (PGE).
0900 AM Non-Tstm Wnd Gst 8 SSW Lake Nacimiento 35.62N 120.92W
02/04/2024 M65 MPH San Luis Obispo CA Mesonet
Mesonet station PG494 Adelaida Foothills
(PGE).
1040 AM Non-Tstm Wnd Gst 2 E Cayucos 35.45N 120.87W
02/04/2024 M66 MPH San Luis Obispo CA Mesonet
Mesonet station PG741 Cayucos Road.
1150 AM Non-Tstm Wnd Gst 8 W Gaviota 34.47N 120.36W
02/04/2024 M66 MPH Santa Barbara CA Mesonet
Mesonet station SE456 San Agustin (SCE).
0809 AM Non-Tstm Wnd Gst 2 NW Gaviota 34.49N 120.24W
02/04/2024 M68 MPH Santa Barbara CA Mesonet
Mesonet station GVTC1 Gaviota Hills RAWS.
1000 AM Non-Tstm Wnd Gst 2 NE Vandenberg Village 34.73N 120.44W
02/04/2024 M68 MPH Santa Barbara CA Mesonet
Mesonet station PG825 Divide-Cabrillo.
1020 AM Non-Tstm Wnd Gst 1 N Morro Bay 35.38N 120.85W
02/04/2024 M68 MPH San Luis Obispo CA Mesonet
Mesonet station 072PG Hillcrest Drive.
1010 AM Non-Tstm Wnd Gst 7 E Black Mountain 35.38N 120.22W
02/04/2024 M69 MPH San Luis Obispo CA Mesonet
Mesonet station PG775 Lewis Ranch Road.
1020 AM Non-Tstm Wnd Gst 4 WNW Atascadero 35.50N 120.76W
02/04/2024 M69 MPH San Luis Obispo CA Mesonet
Mesonet station PG191 El Monte Rd (PGE).
1135 AM Non-Tstm Wnd Gst 10 SSW California Valle 35.19N 120.08W
02/04/2024 M70 MPH San Luis Obispo CA Mesonet
Mesonet station BRHC1 Branch Mtn RAWS.
1040 AM Non-Tstm Wnd Gst 12 NNE Los Alamos 34.92N 120.22W
02/04/2024 M71 MPH Santa Barbara CA Mesonet
Mesonet station PG611 Tepesquet Canyon Road.
1200 PM Non-Tstm Wnd Gst 8 S Agua Dulce 34.39N 118.34W
02/04/2024 M71 MPH Los Angeles CA Mesonet
Mesonet station SE678 Magic Mtn Truck Trl
(SCE).
1100 AM Non-Tstm Wnd Gst 3 NNE Los Alamos 34.79N 120.26W
02/04/2024 M72 MPH Santa Barbara CA Mesonet
Mesonet station PG665 Cat Canyon Road.
1140 AM Non-Tstm Wnd Gst 5 ENE Cayucos 35.49N 120.82W
02/04/2024 M72 MPH San Luis Obispo CA Mesonet
Mesonet station PG633 Old Creek Road.
0950 AM Non-Tstm Wnd Gst 7 N Cayucos 35.55N 120.91W
02/04/2024 M73 MPH San Luis Obispo CA Mesonet
Mesonet station PG175 Camino Del Capitan
(PGE).
0854 AM Non-Tstm Wnd Gst 12 SE Point Arguello 34.45N 120.47W
02/04/2024 M74 MPH Santa Barbara CA Mesonet
Mesonet station XCPT Pt. Conception
Lighthouse.
1210 PM Non-Tstm Wnd Gst 2 ENE San Luis Obispo 35.28N 120.63W
02/04/2024 M75 MPH San Luis Obispo CA Mesonet
Mesonet station PG807 High School Hill.
1000 AM Non-Tstm Wnd Gst 4 NE San Luis Obispo 35.31N 120.60W
02/04/2024 M77 MPH San Luis Obispo CA Mesonet
Mesonet station PG715 Mt. Lowe (PGE).
1044 AM Non-Tstm Wnd Gst 4 E Vandenberg Village 34.71N 120.39W
02/04/2024 M77 MPH Santa Barbara CA Mesonet
Mesonet station PUSC1 Purisima Hills.
0920 AM Non-Tstm Wnd Gst 7 SSW Lompoc 34.57N 120.50W
02/04/2024 M78 MPH Santa Barbara CA Mesonet
Mesonet station PG852 De La Concepcion.
1100 AM Non-Tstm Wnd Gst 5 W Santa Margarita 35.39N 120.71W
02/04/2024 M79 MPH San Luis Obispo CA Mesonet
Mesonet station PG223 TV Towers Rd 2 (PGE).
0920 AM Non-Tstm Wnd Gst 3 SSW Atascadero 35.45N 120.71W
02/04/2024 M80 MPH San Luis Obispo CA Mesonet
Mesonet station PG210 Falcon Rd (PGE).
&&Local storm report, Feb 4, 12:47 PM PST, 2 hours 54 minutes before
Preliminary Local Storm Report
National Weather Service Los Angeles/Oxnard CA
1247 PM PST Sun Feb 4 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1243 PM Non-Tstm Wnd Dmg San Luis Obispo 35.27N 120.66W
02/04/2024 San Luis Obispo CA Emergency Mngr
Over 22,000 people were reported without
power in San Luis Obispo county due to the
strong winds.
1245 PM Non-Tstm Wnd Dmg Santa Barbara 34.43N 119.72W
02/04/2024 Santa Barbara CA Emergency Mngr
Over 10,000 people were reported to have
lost power in Santa Barbara county due to
the strong winds.
&&Local storm report, Feb 4, 2:06 PM PST, 1 hour 35 minutes before
Preliminary Local Storm Report
National Weather Service Los Angeles/Oxnard CA
206 PM PST Sun Feb 4 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0130 PM Non-Tstm Wnd Dmg 2 E Santa Barbara 34.43N 119.69W
02/04/2024 Santa Barbara CA Public
Strong winds knocked down a tree, resulting
in some downed power lines.
&&The office that day
Everything else NWS Los Angeles, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 3, 4:35 PM PST | Coastal Flood Advisory | LOX | Los Angeles, Santa Barbara, Ventura | 40 hr |
| Feb 4, 10:14 AM PST | River Flood Warning | LOX | Ventura | 14 hr |
| Feb 4, 12:05 PM PST | Areal Flood Advisory | LOX | Santa Barbara, Ventura | 5 hr |
| Feb 4, 1:04 PM PST | Areal Flood Advisory | LOX | Ventura | 4 hr |
| Feb 4, 1:38 PM PST | Areal Flood Advisory | LOX | Los Angeles | 2 hr |
| Feb 4, 2:04 PM PST | Areal Flood Advisory | LOX | San Luis Obispo, Santa Barbara | 3 hr |
| Feb 4, 2:17 PM PST | Special Marine Warning | LOX | 69 min | |
| Feb 4, 2:40 PM PST | Flash Flood Warning | LOX | Santa Barbara, Ventura | 9 hr |
| Feb 4, 2:58 PM PST | Flash Flood Warning | LOX | San Luis Obispo, Santa Barbara | 8 hr |
| Feb 4, 3:23 PM PST | Areal Flood Advisory | LOX | Los Angeles | 88 min |
Nearby
Flash Flood Warnings in California, 2024Every flash flood warning in 2024
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.