Alert archive / California / Fire Weather Watches in 2021
Fire Weather Watch 15, NWS Reno, NV
NWS Reno, NV issued this fire weather watch at Sep 8, 2021, 11:14 AM PDT for 6 counties in California. It took effect at Sep 9, 2021, 11:00 PM PDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Sep 8, 2021, 11:14 AM PDT (18:14 UTC)
- In effect from
- Sep 9, 2021, 11:00 PM PDT
- Expired
- Sep 9, 2021, 10:33 AM PDT
- In force
- Issued by
- NWS Reno, NV
Counties El Dorado County, CA, Lassen County, CA, Nevada County, CA, Placer County, CA, Plumas County, CA, Sierra County, CA
The radar
The Beale AFB radar (KBBX), 84 km from the middle of the area, began a volume at 18:18 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, 6.2 hours before the alert went out and 244 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
- 2456 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- -18 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this fire weather watch 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 fire weather watch went out at Sep 8, 2:35 AM PDT, 8 hours 39 minutes earlier.
Area forecast discussion, Sep 8, 2:35 AM PDT, 8 hours 39 minutes before
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Fire Weather Watches in California, 2021Every fire weather watch in 2021
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.