Alert archive / California / Flash Flood Warnings in 2016
Flash Flood Warning 2, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this flash flood warning at Mar 5, 2016, 9:59 PM PST for Napa 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 5, 2016, 9:59 PM PST (05:59 UTC)
- Expired
- Mar 6, 2016, 1:00 AM PST
- In force
- 3 hr
- Issued by
- NWS San Francisco Bay Area, CA
- Area
- Storm-based polygon
- Flood severity
- None
County Napa County, CA
The radar
The Sacramento radar (KDAX), 62 km from the middle of the area, began a volume at 06:01 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, 6.0 hours before the alert went out and 73 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
- 31 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 748 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 198 m²/s²
- 0-3 km storm-relative helicity
- 207 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
417
WGUS56 KMTR 060559
FFWMTR
CAC055-060900-
/O.NEW.KMTR.FF.W.0002.160306T0559Z-160306T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
959 PM PST SAT MAR 5 2016
THE NATIONAL WEATHER SERVICE IN THE SAN FRANCISCO BAY AREA HAS ISSUED
A
* FLASH FLOOD WARNING FOR...
SOUTH CENTRAL NAPA COUNTY IN NORTHERN CALIFORNIA...
* UNTIL 100 AM PST
* AT 954 PM PST...STREAM GAUGE REPORTS INDICATED THE REDWOOD CREEK
AT MOUNT VEEDER ROAD IN NAPA COUNTY HAD REACHED FLOOD STAGE.
ADDITIONAL RAINFALL IN THE AREA MAY LEAD TO FURTHER RISES ON THE
CREEK. FLOODING IS EXPECTED ALONG THE REDWOOD CREEK. IN
ADDITION...THE HOPPER CREEK AT HIGHWAY 29 IN YOUNTVILLE WAS
APPROACHING FLOOD STAGE AT 9:55 PM PST.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
NORTHWEST PORTIONS OF THE CITY OF NAPA AND YOUNTVILLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. NEVER DRIVE ACROSS FLOODED ROADWAYS. TURN
AROUND...DONT DROWN.
&&
LAT...LON 3844 12236 3831 12231 3828 12238 3838 12243
$$
DYKEMA1 follow-up statement
664 WGUS76 KMTR 060713 FFSMTR FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SAN FRANCISCO CA 1113 PM PST SAT MAR 5 2016 CAC055-060714- /O.CAN.KMTR.FF.W.0002.000000T0000Z-160306T0900Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NAPA CA- 1113 PM PST SAT MAR 5 2016 ...THE FLASH FLOOD WARNING FOR SOUTH CENTRAL NAPA COUNTY IS CANCELLED... HEAVY RAIN HAS ENDED...AND THE RIVER STAGE ON THE REDWOOD CREEK AT MOUNT VEEDER ROAD HAS FALLEN BELOW FLOOD STAGE. FLOODING IS NO LONGER EXPECTED TO POSE A THREAT. THEREFORE THE FLASH FLOOD WARNING HAS BEEN CANCELLED. PLEASE CONTINUE TO HEED ALL ROAD CLOSURES. LAT...LON 3844 12236 3831 12231 3828 12238 3838 12243 $$
The office that day
Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 5, 4:17 PM PST | Areal Flood Advisory | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 5 more | 6 hr |
| Mar 5, 9:07 PM PST | Small Craft Advisory | MTR | 54 hr | |
| Mar 5, 10:14 PM PST | Flash Flood Watch | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 4 more | 5 hr |
| Mar 5, 10:27 PM PST | Flash Flood Warning | MTR | Santa Cruz | 4 hr |
| Mar 5, 10:41 PM PST | Flash Flood Warning | MTR | Alameda | 4 hr |
| Mar 5, 10:50 PM PST | Flash Flood Warning | MTR | Sonoma | 4 hr |
| Mar 5, 11:46 PM PST | Flash Flood Warning | MTR | Santa Cruz | 3 hr |
| Mar 6, 12:12 AM PST | Flash Flood Warning | MTR | Santa Cruz | 108 min |
| Mar 6, 2:24 AM PST | Gale Warning | MTR | 23 hr | |
| Mar 6, 2:24 AM PST | Small Craft Advisory | MTR | 13 hr | |
| Mar 6, 4:57 AM PST | Wind Advisory | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 5 more | 23 hr |
| Mar 6, 5:16 AM PST | Flash Flood Watch | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 5 more | 23 hr |
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.