Alert archive / California / Flash Flood Watches in 2016
Flash Flood Watch 5, NWS Los Angeles, CA
NWS Los Angeles, CA issued this flash flood watch at May 6, 2016, 1:20 AM PDT for Santa Barbara County, California. It took effect at May 6, 2016, 12:00 PM PDT. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- May 6, 2016, 1:20 AM PDT (08:20 UTC)
- In effect from
- May 6, 2016, 12:00 PM PDT
- Expired
- May 6, 2016, 8:00 PM PDT
- In force
- 8 hr
- Issued by
- NWS Los Angeles, CA
- Flood severity
- None
County Santa Barbara County, CA
The radar
The Vandenberg AFB radar (KVBX), 47 km from the middle of the area, began a volume at 08:22 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, 8.3 hours before the alert went out and 48 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
- 1123 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 64 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 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 May 5, 8:38 PM PDT, 4 hours 42 minutes earlier.
Area forecast discussion, May 5, 8:38 PM PDT, 4 hours 42 minutes before
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</html>Hazardous weather outlook, May 5, 6:00 AM PDT, 19 hours 20 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA 600 AM PDT THU MAY 5 2016 CAZ034>041-044>046-051>054-059-087-088-547-548-061300- 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- 600 AM PDT THU MAY 5 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWESTERN CALIFORNIA. .DAY ONE... TODAY THERE WILL BE A CHANCE FOR THUNDERSTORMS TODAY AND TONIGHT ACROSS THE FORECAST AREA. THIS INCLUDES ALL THE COASTAL WATERS THIS AFTERNOON, THEN THE SOUTHERN PORTION TONIGHT INTO FRIDAY. MARINERS NEED TO BE AWARE OF THIS SITUATION. THE BEST CHANCE OF THUNDERSTORMS WILL BE ACROSS THE LOS ANGELES, VENTURA AND SANTA BARBARA COUNTY MOUNTAINS. THERE COULD BE LOCAL FLOODING OF ROADWAYS NEAR THUNDERSTORMS. * MARINE WEATHER STATEMENT...SEE FZUS76 KLOX - MWSLOX FOR DETAILS * .DAYS TWO THROUGH SEVEN... FRIDAY THROUGH WEDNESDAY THERE WILL BE A SLIGHT CHANCE FOR THUNDERSTORMS JUST ABOUT ANYWHERE ON FRIDAY. BEST CHANCES WILL CONTINUE TO BE IN THE MOUNTAINS. ALSO, FRIDAY WILL BE THE BEST CHANCE OF SOME LOCAL FLASH FLOODING ACROSS THE MOUNTAINS AND THE FOOTHILLS OF THE ANTELOPE VALLEY. STORMS WILL HAVE WEAK STEERING WINDS ON FRIDAY. IF THUNDERSTORMS DO DEVELOP...A FEW COULD DRIFT INTO THE ADJACENT VALLEYS AND EVEN COASTAL AREAS. THERE WILL BE A SLIGHT CHANCE FOR THUNDERSTORMS TO BE LIMITED TO THE MOUNTAINS AND POSSIBLY THE ANTELOPE VALLEY ON SATURDAY AFTERNOON AND EARLY EVENING. * MARINE WEATHER STATEMENT...SEE FZUS76 KLOX - MWSLOX FOR DETAILS * KAPLAN
The office that day
Everything else NWS Los Angeles, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 5, 5:03 PM PDT | Special Weather Statement | LOX | 87 min | |
| May 5, 5:27 PM PDT | Flash Flood Warning | LOX | San Luis Obispo, Santa Barbara | 3 hr |
| May 6, 11:38 AM PDT | Areal Flood Advisory | LOX | Los Angeles | 112 min |
| May 6, 2:26 PM PDT | Areal Flood Advisory | LOX | Los Angeles | 3 hr |
| May 6, 3:01 PM PDT | Areal Flood Advisory | LOX | Santa Barbara, Ventura | 3 hr |
| May 6, 3:18 PM PDT | Flash Flood Warning | LOX | Santa Barbara | 3 hr |
| May 6, 4:18 PM PDT | Areal Flood Advisory | LOX | San Luis Obispo, Santa Barbara | 3 hr |
| May 6, 4:45 PM PDT | Flash Flood Warning | LOX | San Luis Obispo | 2 hr |
Nearby
Flash Flood Watches in California, 2016Every flash flood watch in 2016
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.