Alert archive / California / Heat Advisories in 2020
Heat Advisory 2, NWS Reno, NV
NWS Reno, NV issued this heat advisory at Sep 3, 2020, 11:29 AM PDT for 7 counties in Nevada; 9 counties in California. It took effect at Sep 4, 2020, 11:00 AM PDT. It was in force for 57 hr.
The area
The counties it named.
The facts
- Issued
- Sep 3, 2020, 11:29 AM PDT (18:29 UTC)
- In effect from
- Sep 4, 2020, 11:00 AM PDT
- Expired
- Sep 6, 2020, 8:00 PM PDT
- In force
- 57 hr
- Issued by
- NWS Reno, NV
Counties Alpine County, CA, El Dorado County, CA, Lassen County, CA, Modoc County, CA, Mono County, CA, Nevada County, CA, Placer County, CA, Plumas County, CA, Sierra County, CA, Churchill County, NV, Douglas County, NV, Lyon County, NV, Mineral County, NV, Pershing County, NV, Storey County, NV, Washoe County, NV
The radar
The Reno radar (KRGX), 39 km from the middle of the area, began a volume at 18:33 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 12:00Z, 6.5 hours before the alert went out and 407 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
- 2557 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
Nearby
Heat Advisories in California, 2020Heat Advisories in Nevada, 2020Every heat advisory in 2020
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.