Alert archive / California / Flash Flood Watches in 2011

Flash Flood Watch 1, NWS Los Angeles, CA

February 17, 2011Los Angeles County, Santa Barbara County, California

NWS Los Angeles, CA issued this flash flood watch at Feb 17, 2011, 7:31 PM PST for Los Angeles County, Santa Barbara County, California. It took effect at Feb 18, 2011, 12:00 PM PST. It was in force for 39 hr.

The area

The counties it named.

The facts

Issued
Feb 17, 2011, 7:31 PM PST (03:31 UTC)
In effect from
Feb 18, 2011, 12:00 PM PST
Expired
Feb 20, 2011, 3:00 AM PST
In force
39 hr
Issued by
NWS Los Angeles, CA
Flood severity
None

Counties Los Angeles County, CA, Santa Barbara County, CA

The radar

The Los Angeles radar (KVTX), 6 km from the middle of the area, began a volume at 03:31 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.

What forecasters said that day

The local office's own words before this flash flood watch 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 watch went out at Feb 17, 3:30 PM PST, 4 hours 1 minute earlier.

Area forecast discussion, Feb 17, 3:30 PM PST, 4 hours 1 minute before
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Hazardous weather outlook, Feb 17, 2:19 PM PST, 5 hours 12 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
219 PM PST THU FEB 17 2011

CAZ034>041-044>046-051>054-059-087-088-547-548-181400-
SAN LUIS OBISPO COUNTY CENTRAL COAST-
SANTA BARBARA COUNTY CENTRAL COAST-SANTA YNEZ VALLEY-
SAN LUIS OBISPO COUNTY INTERIOR VALLEYS-CUYAMA VALLEY-
SANTA BARBARA COUNTY SOUTH COAST-VENTURA COUNTY COAST-
LOS ANGELES COUNTY COAST INCLUDING DOWNTOWN LOS ANGELES-
VENTURA COUNTY INTERIOR VALLEYS-VENTURA COUNTY COASTAL VALLEYS-
SANTA MONICA MOUNTAINS RECREATIONAL AREA-
SAN LUIS OBISPO COUNTY MOUNTAINS-
SANTA BARBARA COUNTY MOUNTAINS-VENTURA COUNTY MOUNTAINS-
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
ANTELOPE VALLEY-CATALINA ISLAND-SANTA CLARITA VALLEY-
LOS ANGELES COUNTY SAN FERNANDO VALLEY-
LOS ANGELES COUNTY SAN GABRIEL VALLEY-
219 PM PST THU FEB 17 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWESTERN CALIFORNIA.

.DAY ONE... TODAY

RAIN WILL DEVELOP ACROSS THE CENTRAL COAST THIS AFTERNOON AND
TONIGHT. WINDS WILL INCREASE TO ADVISORY LEVELS ACROSS THE CENTRAL
COAST. DANGEROUS SURF WILL PLAGUE THE BEACHES.

* WIND ADVISORY..............SEE WWUS76 KLOX - NPWLOX FOR DETAILS *

* GALE WARNING...............SEE WHUS76 KLOX - MWWLOX FOR DETAILS *

* HIGH SURF ADVISORY.........SEE WHUS46 KLOX - CFWLOX FOR DETAILS *

* HIGH RIP CURRENT RISK......SEE FZUS56 KLOX - SRFLOX FOR DETAILS *

* SPECIAL WEATHER STATEMENT..SEE WWUS86 KLOX - SPSLOX FOR DETAILS *

.DAYS TWO THROUGH SEVEN... FRIDAY THROUGH WEDNESDAY

HIGH SURF AND STRONG RIP CURRENTS WILL CONTINUE ALONG THE BEACHES
OFTHE CENTRAL COAST AND WEST FACING BEACHES OF VENTURA COUNTY.A
STRONGER STORM SYSTEM IS EXPECTED TO AFFECT THE REGION THURSDAYNIGHT
THROUGH SATURDAY...BRINGING THE POTENTIAL FOR PERIODS OF
HEAVYRAIN...SIGNIFICANT MOUNTAIN SNOW...AND STRONG WINDS. IN
ADDITION...THERE WILL BE THE POTENTIAL FOR THUNDERSTORMS WHICH COULD
PRODUCE BRIEF HEAVY DOWNPOURS...HAIL...STRONG WINDS...AND DANGEROUS
LIGHTNING. IN ADDITION...THERE IS THE POTENTIAL FOR WATERSPOUTS AND
ISOLATED SMALL TORNADOS FRIDAY NIGHT INTO SATURDAY. SNOW LEVELS ARE
EXPECTED TO LOWER BY LATE FRIDAY NIGHT AND SATURDAY...WHICH WILL
POTENTIALLY CREATE WINTER WEATHER HAZARDS BOTH THE TEJON AND SOLEDAD
PASSES.

* WINTER STORM WARNING.......SEE WWUS46 KLOX - WSWLOX FOR DETAILS *

* WIND ADVISORY..............SEE WWUS76 KLOX - NPWLOX FOR DETAILS *

* GALE WARNING...............SEE WHUS76 KLOX - MWWLOX FOR DETAILS *

* MARINE WEATHER STATEMENT...SEE FZUS76 KLOX - MWSLOX FOR DETAILS *

* GALE WATCH...............SEE WHUS76 KLOX - MWWLOX FOR DETAILS *

* SPECIAL WEATHER STATEMENT..SEE WWUS86 KLOX - SPSLOX FOR DETAILS *

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

WOFFORD

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 17, 10:32 PM PSTHigh Wind WarningLOX24 hr
Feb 18, 1:51 PM PSTAreal Flood AdvisoryLOXSanta Barbara60 min
Feb 18, 2:51 PM PSTAreal Flood AdvisoryLOXSanta Barbara114 min
Feb 18, 3:16 PM PSTSpecial Weather StatementLOXSanta Barbara59 min

Nearby

Flash Flood Watches in California, 2011Every flash flood watch in 2011

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.