Alert archive / California / Flash Flood Warnings in 2016
Flash Flood Warning 13, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this flash flood warning at Mar 11, 2016, 8:50 AM 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
- Mar 11, 2016, 8:50 AM PST (16:50 UTC)
- Expired
- Mar 11, 2016, 11:45 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), 91 km from the middle of the area, began a volume at 16:50 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 12:00Z, 4.8 hours before the alert went out and 157 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
- 19 J/kg
- Mixed-layer CIN
- -75 J/kg
- Mixed-layer LCL
- 955 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 135 m²/s²
- 0-3 km storm-relative helicity
- 212 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
890
WGUS56 KMTR 111650
FFWMTR
CAC053-111845-
/O.NEW.KMTR.FF.W.0013.160311T1650Z-160311T1845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
850 AM PST FRI MAR 11 2016
THE NATIONAL WEATHER SERVICE IN THE SAN FRANCISCO BAY AREA HAS ISSUED
A
* FLASH FLOOD WARNING FOR...
WEST CENTRAL MONTEREY COUNTY IN CENTRAL CALIFORNIA...
* UNTIL 1045 AM PST
* AT 848 AM PST...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. FLASH FLOODING MAY OCCUR IN THE
WARNED AREA. THIS COULD LEAD TO DEBRIS FLOWS.
* SOME LOCATIONS THAT MAY EXPERIENCE FLOODING INCLUDE... BIG SUR
VILLAGE...BIXBY BRIDGE...PFEIFFER BEACH...GARRAPATA STATE PARK AND
ANDREW MOLERA STATE PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
&&
LAT...LON 3625 12184 3628 12185 3631 12190 3632 12189
3634 12189 3636 12191 3639 12190 3640 12192
3643 12192 3645 12193 3647 12191 3630 12173
3623 12181
$$
BELL3 follow-up statements
798
WGUS76 KMTR 111803
FFSMTR
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
1003 AM PST FRI MAR 11 2016
CAC053-111845-
/O.CON.KMTR.FF.W.0013.000000T0000Z-160311T1845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MONTEREY CA-
1003 AM PST FRI MAR 11 2016
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1045 AM PST FOR
WEST CENTRAL MONTEREY COUNTY...
AT 1000 AM PST...DOPPLER RADAR INDICATED ANOTHER ROUND OF MODERATE
TO HEAVY RAIN AND POSSIBLE SMALL HAIL HEADING TOWARD THE BIG SUR
REGION.
DEBRIS FLOWS ARE POSSIBLE IN THE WARNED AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE PREPARED MOVE TO HIGHER GROUND IF NECESSARY. DEBRIS FLOWS COULD
CREATE DANGEROUS DRIVING CONDITIONS.
&&
LAT...LON 3625 12184 3628 12185 3631 12190 3632 12189
3634 12189 3636 12191 3639 12190 3640 12192
3643 12192 3645 12193 3647 12191 3630 12173
3623 12181
$$
BELL540
WGUS56 KMTR 111841
FFWMTR
CAC053-111945-
/O.EXT.KMTR.FF.W.0013.000000T0000Z-160311T1945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
1041 AM PST FRI MAR 11 2016
THE NATIONAL WEATHER SERVICE IN THE SAN FRANCISCO BAY AREA HAS
EXTENDED THE
* FLASH FLOOD WARNING FOR...
WEST CENTRAL MONTEREY COUNTY IN CENTRAL CALIFORNIA...
* UNTIL 1145 AM PST
* AT 1039 AM PST...DOPPLER RADAR INDICATED HEAVY RAIN ACROSS THE
WARNED AREA. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY IF IT HAS
NOT ALREADY BEGUN. EXCESSIVE RAINFALL OVER THE WARNED AREA WILL
CAUSE MUD SLIDES NEAR STEEP TERRAIN. THE MUD SLIDE CAN CONSIST OF
ROCK...MUD...VEGETATION AND OTHER LOOSE MATERIALS. THE PRIMARY
THREAT WILL BE ROCKS AND OTHER DEBRIS WASHING ONTO HIGHWAY ONE
ALONG THE BIG SUR COASTLINE. HEAVY RUNOFF COULD RESULT IN DELAYED
FLOODING AND MUD SLIDES WELL AFTER THE RAIN HAS ENDED.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.
&&
LAT...LON 3625 12184 3628 12185 3631 12190 3632 12189
3634 12189 3636 12191 3639 12190 3640 12192
3643 12192 3645 12193 3647 12191 3630 12173
3623 12181
$$
DRP961
WGUS76 KMTR 111939
FFSMTR
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
1139 AM PST FRI MAR 11 2016
CAC053-111948-
/O.EXP.KMTR.FF.W.0013.000000T0000Z-160311T1945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MONTEREY CA-
1139 AM PST FRI MAR 11 2016
...THE FLASH FLOOD WARNING FOR WEST CENTRAL MONTEREY COUNTY WILL
EXPIRE AT 1145 AM PST...
THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO
POSE A THREAT. MUD SLIDES COULD STILL OCCUR ALONG HIGHWAY 1 AS
MOUNTAIN RUNOFF CONTINUES.
LAT...LON 3625 12184 3628 12185 3631 12190 3632 12189
3634 12189 3636 12191 3639 12190 3640 12192
3643 12192 3645 12193 3647 12191 3630 12173
3623 12181
$$
DRPThe office that day
Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 10, 4:56 PM PST | Areal Flood Advisory | MTR | Alameda, Contra Costa, Marin, Napa, City and County of San Francisco, San Mateo and 1 more | 4 hr |
| Mar 10, 7:54 PM PST | Flash Flood Warning | MTR | Sonoma | 4 hr |
| Mar 10, 8:15 PM PST | Flash Flood Warning | MTR | Sonoma | 4 hr |
| Mar 10, 8:20 PM PST | River Flood Warning | MTR | Napa | 24 hr |
| Mar 11, 12:15 AM PST | Flash Flood Warning | MTR | Sonoma | 3 hr |
| Mar 11, 3:04 AM PST | Gale Warning | MTR | 18 hr | |
| Mar 11, 3:04 AM PST | Small Craft Advisory | MTR | 18 hr | |
| Mar 11, 3:28 AM PST | Wind Advisory | MTR | Alameda, Contra Costa, Marin, Monterey, San Benito, City and County of San Francisco and 4 more | 18 hr |
| Mar 11, 8:44 AM PST | Special Marine Warning | MTR | 46 min | |
| Mar 11, 8:59 AM PST | Areal Flood Advisory | MTR | Monterey, Santa Cruz | 2 hr |
| Mar 11, 9:10 AM PST | Special Weather Statement | MTR | Santa Cruz | 50 min |
| Mar 11, 10:28 AM PST | Special Weather Statement | MTR | San Mateo | 47 min |
| Mar 11, 10:40 AM PST | Severe Thunderstorm Warning | MTR | San Mateo, Santa Cruz | 20 min |
| Mar 11, 11:02 AM PST | Areal Flood Advisory | MTR | Monterey, Santa Cruz | 118 min |
Nearby
Flash Flood Warnings in California, 2016Every flash flood warning 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.