Alert archive / California / Flash Flood Watches in 2016
Flash Flood Watch 3, NWS Sacramento, CA
NWS Sacramento, CA issued this flash flood watch at Jan 15, 2016, 11:56 AM PST for 4 counties in California. It took effect at Jan 17, 2016, 1:00 PM PST. It was in force for 21 hr.
The area
The counties it named.
The facts
- Issued
- Jan 15, 2016, 11:56 AM PST (19:56 UTC)
- In effect from
- Jan 17, 2016, 1:00 PM PST
- Expired
- Jan 18, 2016, 9:32 AM PST
- In force
- 21 hr
- Issued by
- NWS Sacramento, CA
- Flood severity
- None
Counties Amador County, CA, Calaveras County, CA, El Dorado County, CA, Lake County, CA
The radar
The Sacramento radar (KDAX), 51 km from the middle of the area, began a volume at 19:55 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
Reno, NV (KREV), launched 12:00Z, 7.9 hours before the alert went out and 273 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
- 651 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 95 m²/s²
- 0-3 km storm-relative helicity
- 187 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Sacramento, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 15, 8:16 AM PST | Dense Fog Advisory | STO | 3 hr |
Nearby
Flash Flood Watches in California, 2016Every flash flood watch 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.