Alert archive / California / Flash Flood Warnings in 2017
Flash Flood Warning 23, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this flash flood warning at Jan 11, 2017, 6:03 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
- Jan 11, 2017, 6:03 AM PST (14:03 UTC)
- Expired
- Jan 11, 2017, 9:00 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 Vandenberg AFB radar (KVBX), 141 km from the middle of the area, began a volume at 14:03 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 12:00Z, 2.1 hours before the alert went out and 148 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
- 2 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 791 m above ground
- 0-6 km bulk shear
- 72 kt
- 0-1 km storm-relative helicity
- -108 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
291
WGUS56 KMTR 111403
FFWMTR
CAC053-111700-
/O.NEW.KMTR.FF.W.0023.170111T1403Z-170111T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service San Francisco CA
603 AM PST WED JAN 11 2017
The National Weather Service in The San Francisco Bay Area has issued
a
* Flash Flood Warning for...
Southern Monterey County in central California...
* Until 900 AM PST
* At 557 AM PST, river gauge reports indicated runoff from heavy
rain that occurred overnight has caused rapid rising of the San
Antonio River near Lockwood. At 6 AM the stream gauge had risen to
13.40 feet, which is just below flood stage of 14 feet. Flash
flooding is expected to begin shortly.
LAT...LON 3599 12123 3597 12120 3590 12108 3588 12108
3590 12113 3593 12118 3597 12124
$$2 follow-up statements
238
WGUS76 KMTR 111548
FFSMTR
Flash Flood Statement
National Weather Service San Francisco CA
748 AM PST WED JAN 11 2017
CAC053-111700-
/O.CON.KMTR.FF.W.0023.000000T0000Z-170111T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Monterey CA-
748 AM PST WED JAN 11 2017
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 AM PST FOR
SOUTHERN MONTEREY COUNTY...
At 745 AM PST, flooding is already occurring and will continue as
more showers move through the region and runoff continues to fill
the San Antonio River.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3599 12123 3597 12120 3590 12108 3588 12108
3590 12113 3593 12118 3597 12124
$$
rww214
WGUS76 KMTR 111659
FFSMTR
Flash Flood Statement
National Weather Service San Francisco CA
859 AM PST WED JAN 11 2017
CAC053-111708-
/O.EXP.KMTR.FF.W.0023.000000T0000Z-170111T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Monterey CA-
859 AM PST WED JAN 11 2017
...THE FLASH FLOOD WARNING FOR SOUTHERN MONTEREY COUNTY WILL EXPIRE
AT 900 AM PST...
The heavy rain has ended. Flood waters are receding. Please continue
to heed any remaining road closures.
LAT...LON 3599 12123 3597 12120 3590 12108 3588 12108
3590 12113 3593 12118 3597 12124
$$
rwwThe office that day
Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 10, 4:26 PM PST | Areal Flood Warning | MTR | Sonoma | 24 hr |
| Jan 10, 5:46 PM PST | Areal Flood Advisory | MTR | City and County of San Francisco, San Mateo | 4 hr |
| Jan 10, 6:18 PM PST | Areal Flood Warning | MTR | Sonoma | 12 hr |
| Jan 10, 6:41 PM PST | Areal Flood Warning | MTR | Santa Clara | 15 hr |
| Jan 10, 7:26 PM PST | Flash Flood Warning | MTR | Santa Cruz | 3 hr |
| Jan 10, 7:59 PM PST | Areal Flood Warning | MTR | Napa | 12 hr |
| Jan 10, 8:01 PM PST | Flash Flood Warning | MTR | Alameda | 10 hr |
| Jan 10, 8:28 PM PST | Areal Flood Warning | MTR | Marin | 12 hr |
| Jan 10, 8:43 PM PST | Special Weather Statement | MTR | Santa Cruz | 47 min |
| Jan 10, 8:45 PM PST | Special Marine Warning | MTR | 30 min | |
| Jan 10, 9:03 PM PST | Gale Warning | MTR | 5 hr | |
| Jan 10, 9:03 PM PST | Small Craft Advisory for Rough Bar | MTR | 36 hr | |
| Jan 10, 9:03 PM PST | Small Craft Advisory | MTR | 5 hr | |
| Jan 10, 9:14 PM PST | Flash Flood Warning | MTR | Monterey | 9 hr |
| Jan 10, 9:20 PM PST | Special Marine Warning | MTR | 40 min | |
| Jan 10, 10:07 PM PST | Areal Flood Advisory | MTR | Santa Clara | 5 hr |
| Jan 10, 10:53 PM PST | Flash Flood Warning | MTR | Santa Cruz | 6 hr |
| Jan 10, 11:07 PM PST | Areal Flood Advisory | MTR | City and County of San Francisco, San Mateo | 113 min |
| Jan 10, 11:43 PM PST | Special Marine Warning | MTR | 32 min | |
| Jan 10, 11:50 PM PST | Areal Flood Advisory | MTR | Alameda, Contra Costa | 115 min |
| Jan 11, 12:27 AM PST | Areal Flood Advisory | MTR | San Mateo | 4 hr |
| Jan 11, 12:45 AM PST | River Flood Warning | MTR | Monterey | 15 hr |
| Jan 11, 7:43 AM PST | Areal Flood Warning | MTR | San Benito, Santa Clara | 12 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.