Alert archive / California / Flash Flood Warnings in 2016
Flash Flood Warning 9, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this flash flood warning at Mar 10, 2016, 3:57 PM PST for Sonoma County, California. It was in force for 4 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 10, 2016, 3:57 PM PST (23:57 UTC)
- Expired
- Mar 10, 2016, 8:00 PM PST
- In force
- 4 hr
- Issued by
- NWS San Francisco Bay Area, CA
- Area
- Storm-based polygon
- Flood severity
- None
County Sonoma County, CA
The radar
The Sacramento radar (KDAX), 88 km from the middle of the area, began a volume at 23:55 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, 12.0 hours before the alert went out and 71 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
- 1281 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 107 m²/s²
- 0-3 km storm-relative helicity
- 312 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
324
WGUS56 KMTR 102357
FFWMTR
CAC097-110400-
/O.NEW.KMTR.FF.W.0009.160310T2357Z-160311T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
357 PM PST THU MAR 10 2016
THE NATIONAL WEATHER SERVICE IN THE SAN FRANCISCO BAY AREA HAS ISSUED
A
* FLASH FLOOD WARNING FOR...
SOUTH CENTRAL SONOMA COUNTY IN NORTHERN CALIFORNIA...
* UNTIL 800 PM PST
* AT 354 PM PST...GAUGE REPORTS INDICATED HEAVY RAIN FALLING ACROSS
THE WARNED AREA. FLASH FLOODING IS EXPECTED TO CONTINUE
THROUGH THE EVENING.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
FROM PENNGROVE SOUTHEAST INTO PETALUMA.
FLOOD WATERS ARE MOVING DOWN WILLOW BROOK CREEK FROM PENNGROVE PARK
TO OLD REDWOOD HIGHWAY BRIDGE AND STONY POINT ROAD.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 3829 12264 3826 12264 3823 12260 3822 12262
3827 12269 3830 12266
$$
LARRYThe office that day
Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 10, 2:41 AM PST | Small Craft Advisory | MTR | 24 hr | |
| Mar 10, 8:35 AM PST | Areal Flood Advisory | MTR | Marin, Napa, Sonoma | 3 hr |
| Mar 10, 10:05 AM PST | Areal Flood Advisory | MTR | Marin, Napa, Sonoma | 115 min |
| Mar 10, 11:43 AM PST | Areal Flood Advisory | MTR | Marin, Napa, Sonoma | 3 hr |
| Mar 10, 12:02 PM PST | Flash Flood Warning | MTR | Sonoma | 4 hr |
| Mar 10, 3:48 PM PST | River Flood Warning | MTR | Napa, Sonoma | 281 days |
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.