Alert archive / California / Areal Flood Warnings in 2017
Areal Flood Warning 7, NWS Reno, NV
NWS Reno, NV issued this areal flood warning at Feb 6, 2017, 9:04 PM PST for Lassen County, Plumas County, Sierra County, California. It was in force for 24 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Feb 6, 2017, 9:04 PM PST (05:04 UTC)
- Expired
- Feb 7, 2017, 9:00 PM PST
- In force
- 24 hr
- Issued by
- NWS Reno, NV
- Area
- Storm-based polygon
- Flood severity
- None
Counties Lassen County, CA, Plumas County, CA, Sierra County, CA
The radar
The Beale AFB radar (KBBX), 107 km from the middle of the area, began a volume at 05:05 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
Medford/Jackson, OR (KMFR), launched 00:00Z, 5.1 hours before the alert went out and 311 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
- -11 J/kg
- Mixed-layer LCL
- 1018 m above ground
- 0-6 km bulk shear
- 97 kt
- 0-1 km storm-relative helicity
- 111 m²/s²
- 0-3 km storm-relative helicity
- 620 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this areal flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Reno, NV wrote its last area forecast discussion before this areal flood warning went out at Feb 6, 3:59 PM PST, 5 hours 5 minutes earlier.
Area forecast discussion, Feb 6, 3:59 PM PST, 5 hours 5 minutes before
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</html>The office that day
Everything else NWS Reno, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 7, 6:41 AM PST | Areal Flood Warning | REV | Douglas, Lyon, Pershing, Storey, Washoe | 12 hr |
| Feb 7, 3:51 PM PST | High Wind Watch | REV | Douglas, Lyon, Storey, Washoe | 21 hr |
| Feb 7, 3:36 AM PST | River Flood Warning | REV | Lassen | 4 days |
| Feb 7, 6:51 AM PST | Areal Flood Warning | REV | Alpine, El Dorado, Nevada, Placer | 12 hr |
Nearby
Areal Flood Warnings in California, 2017Every areal 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.