Alert archive / California / Flash Flood Warnings in 2017

Flash Flood Warning 14, NWS San Francisco Bay Area, CA

January 8, 2017Monterey County, California

NWS San Francisco Bay Area, CA issued this flash flood warning at Jan 8, 2017, 11:09 PM PST for Monterey County, California. It was in force for 3 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
Jan 8, 2017, 11:09 PM PST (07:09 UTC)
Expired
Jan 9, 2017, 2:00 AM PST
In force
3 hr
Issued by
NWS San Francisco Bay Area, CA
Area
Storm-based polygon
Flood severity
None

County Monterey County, CA

The radar

The San Francisco radar (KMUX), 77 km from the middle of the area, began a volume at 07:12 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

Oakland, CA (KOAK), launched 00:00Z, 7.2 hours before the alert went out and 145 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.

Skew-T log-pSkew-T log-p diagram, Oakland, CA at 00:00Z on 2017-01-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Oakland, CA at 00:00Z on 2017-01-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 320 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
678 m above ground
0-6 km bulk shear
83 kt
0-1 km storm-relative helicity
320 m²/s²
0-3 km storm-relative helicity
361 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

133 
WGUS56 KMTR 090709
FFWMTR
CAC053-091000-
/O.NEW.KMTR.FF.W.0014.170109T0709Z-170109T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service San Francisco CA
1109 PM PST SUN JAN 8 2017

The National Weather Service in The San Francisco Bay Area has issued
a

* Flash Flood Warning for...
  Northwestern Monterey County in central California...

* Until 200 AM PST

* At 1100 PM PST, Monterey County Emergency Service Officials
  reported a levee breach on the Carmel River at Paso Hondo in the
  village of Carmel Valley. Inundation from the levee breach is
  impacting 20 to 30 homes. In addition, swift water rescue is
  underway.

* Some locations that will experience flooding include...
  Carmel Valley Village.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

&&

LAT...LON 3646 12172 3649 12177 3651 12175 3647 12171

$$
2 follow-up statements
585 
WGUS76 KMTR 090826
FFSMTR

Flash Flood Statement
National Weather Service San Francisco CA
1226 AM PST MON JAN 9 2017

CAC053-091000-
/O.CON.KMTR.FF.W.0014.000000T0000Z-170109T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Monterey CA-
1226 AM PST MON JAN 9 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 200 AM PST FOR
NORTHWESTERN MONTEREY COUNTY...

EARLIER REPORTS OF A LEVEE FAILURE ALONG THE CARMEL RIVER AT PASO
HONDO IN CARMEL VALLEY VILLAGE WERE NOT CORRECT. THE RIVER LEVEE HAS
NOT FAILED. HOWEVER...THE CARMEL RIVER IS SPILLING OVER THE LEVEE
NEAR PASO HONDO AND HAS FLOODED ABOUT TEN HOMES. ACCORDING TO
MONTEREY COUNTY EMERGENCY MANAGEMENT OFFICIALS...THE CARMEL RIVER
CONTINUES TO OVERFLOW THE LEVEE AT THIS TIME. THEREFORE...THE FLASH
FLOOD WARNING ALONG THE CARMEL RIVER IN CARMEL VALLEY VILLAGE WILL
CONTINUE IN EFFECT UNTIL 200 AM PST MONDAY.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...CARMEL VALLEY
VILLAGE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

&&

LAT...LON 3646 12172 3649 12177 3651 12175 3647 12171

$$
060 
WGUS76 KMTR 090956
FFSMTR

Flash Flood Statement
National Weather Service San Francisco CA
156 AM PST MON JAN 9 2017

CAC053-091002-
/O.EXP.KMTR.FF.W.0014.000000T0000Z-170109T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Monterey CA-
156 AM PST MON JAN 9 2017

...THE FLASH FLOOD WARNING FOR NORTHWESTERN MONTEREY COUNTY WILL
EXPIRE AT 200 AM PST...

Waters should continue to slowly recede through the reminder of the
night. However, residents in the area are urged to still use caution
especially at night when it is harder to recognize the dangers of
flooding.

LAT...LON 3646 12172 3649 12177 3651 12175 3647 12171

$$

The office that day

Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 8, 4:34 PM PSTFlash Flood WarningMTRSanta Clara3 hr
Jan 8, 7:54 PM PSTAreal Flood WarningMTRSanta Clara3 hr
Jan 8, 8:21 PM PSTSpecial Marine WarningMTR24 min
Jan 8, 9:43 PM PSTSmall Craft AdvisoryMTR5 hr
Jan 8, 9:43 PM PSTSmall Craft AdvisoryMTR4 days
Jan 8, 10:45 PM PSTAreal Flood WarningMTRSanta Clara6 hr
Jan 9, 2:44 AM PSTGale WarningMTR42 hr
Jan 9, 2:55 AM PSTCoastal Flood AdvisoryMTRAlameda, Contra Costa, Marin, Monterey, Napa, City and County of San Francisco and 4 more3 days
Jan 9, 3:02 AM PSTHigh Wind WatchMTRMarin, City and County of San Francisco, San Mateo, Santa Clara, Santa Cruz, Sonoma11 hr
Jan 9, 2:17 PM PSTHigh Wind WarningMTRMonterey, San Mateo, Santa Clara, Santa Cruz34 hr
Jan 9, 2:17 PM PSTWind AdvisoryMTRAlameda, Contra Costa, Marin, Monterey, Napa, City and County of San Francisco and 4 more34 hr
Jan 9, 2:39 PM PSTFlash Flood WatchMTRMarin, Monterey, Napa, San Mateo, Santa Clara, Santa Cruz and 1 more37 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.