Alert archive / California / Flash Flood Warnings in 2017
Flash Flood Warning 13, NWS Los Angeles, CA
NWS Los Angeles, CA issued this flash flood warning at Feb 17, 2017, 5:02 PM PST for Ventura County, California. It was in force for 5 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Feb 17, 2017, 5:02 PM PST (01:02 UTC)
- Expired
- Feb 17, 2017, 10:08 PM PST
- In force
- 5 hr
- Issued by
- NWS Los Angeles, CA
- Area
- Storm-based polygon
- Flood severity
- None
County Ventura County, CA
The radar
The Los Angeles radar (KVTX), 27 km from the middle of the area, began a volume at 01:05 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 00:00Z, 1.0 hours before the alert went out and 150 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
- 14 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 850 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- -70 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
757
WGUS56 KLOX 180102
FFWLOX
CAC111-180400-
/O.NEW.KLOX.FF.W.0013.170218T0102Z-170218T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service OXNARD CA
502 PM PST FRI FEB 17 2017
The National Weather Service in OXNARD has issued a
* Flash Flood Warning for...
Southeastern Ventura County in southwestern California...
* Until 800 PM PST
* At 459 PM PST, Doppler radar indicated heavy rain across the warned
area. Canejo Creek has exceeded its banks downstream of Highway 101
and is flooding agricultural fields.
* Some locations that will experience flooding include...
Canejo Creek...
and Camarillo.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Stay away or be swept away. River banks and culverts can become
unstable and unsafe.
&&
LAT...LON 3426 11893 3421 11892 3420 11900 3418 11902
3420 11904 3423 11902 3425 11902
$$
MJ/EB/JL2 follow-up statements
523
WGUS56 KLOX 180345
FFWLOX
CAC111-180700-
/O.EXT.KLOX.FF.W.0013.000000T0000Z-170218T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service OXNARD CA
745 PM PST FRI FEB 17 2017
The National Weather Service in OXNARD has extended the
* Flash Flood Warning for...
Southeastern Ventura County in southwestern California...including conejo
creek
* Until 1100 PM PST
* At 736 PM PST, Doppler radar indicated bands of moderate to locally heavy
rain across the warned area...with additional rain offshore. Conejo Creek
has exceeded its banks downstream of Highway 101 and is flooding agricultural
fields. It is expected to remain above flood stage until 11 pm.
* Some locations that will experience flooding include...
Conejo Creek...
and Camaillo.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Stay away or be swept away. River banks and culverts can become
unstable and unsafe.
&&
LAT...LON 3426 11893 3421 11892 3420 11900 3418 11902
3420 11904 3423 11902 3425 11902
$$
Gomberg/Laber624
WGUS76 KLOX 180608
FFSLOX
Flash Flood Statement
National Weather Service OXNARD CA
1008 PM PST FRI FEB 17 2017
CAC111-180616-
/O.CAN.KLOX.FF.W.0013.000000T0000Z-170218T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ventura CA-
1008 PM PST FRI FEB 17 2017
...THE FLASH FLOOD WARNING FOR SOUTHEASTERN including Conejo Creek in
VENTURA COUNTY IS
CANCELLED...
Flood waters have receded below flood stage for Conejo Creek. Flooding is
no longer expected to pose a threat. Please continue to heed any remaining
road closures.
LAT...LON 3426 11893 3421 11892 3420 11900 3418 11902
3420 11904 3423 11902 3425 11902
$$
Gomberg/LaberThe office that day
Everything else NWS Los Angeles, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 17, 4:00 PM PST | River Flood Warning | LOX | Ventura | 7 hr |
| Feb 17, 4:16 PM PST | Special Weather Statement | LOX | Orange | 59 min |
| Feb 17, 4:17 PM PST | Special Marine Warning | LOX | 118 min | |
| Feb 17, 5:10 PM PST | Flash Flood Warning | LOX | Los Angeles | 3 hr |
| Feb 17, 8:17 PM PST | Areal Flood Advisory | LOX | Ventura | 118 min |
| Feb 17, 11:42 PM PST | Areal Flood Advisory | LOX | Santa Barbara, Ventura | 3 hr |
| Feb 18, 6:27 AM PST | Winter Weather Advisory | LOX | 16 hr | |
| Feb 18, 9:10 AM PST | Gale Warning | LOX | 24 hr | |
| Feb 18, 1:57 PM PST | Wind Advisory | LOX | 13 hr |
Nearby
Flash Flood Warnings in California, 2017Every flash flood warning in 2017
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.