Alert archive / California / Special Weather Statements in 2020
Special Weather Statement, NWS Eureka, CA
NWS Eureka, CA issued this special weather statement at Aug 16, 2020, 6:40 AM PDT for Lake County, California. It was in force for 20 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 16, 2020, 6:40 AM PDT (13:40 UTC)
- Expired
- Aug 16, 2020, 7:00 AM PDT
- In force
- 20 min
- Issued by
- NWS Eureka, CA
County Lake County, CA
The radar
The Beale AFB radar (KBBX), 100 km from the middle of the area, began a volume at 13:43 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, 1.7 hours before the alert went out and 158 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
- 2172 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- -162 m²/s²
- 0-3 km storm-relative helicity
- -118 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Eureka, CA wrote its last area forecast discussion before this special weather statement went out at Aug 16, 5:18 AM PDT, 1 hour 22 minutes earlier.
Area forecast discussion, Aug 16, 5:18 AM PDT, 1 hour 22 minutes before
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</html>Hazardous weather outlook, Aug 16, 5:39 AM PDT, 1 hour 1 minute before
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</html>In the hours before
Special weather statement, Aug 16, 6:40 AM PDT, 0 minutes before
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<div class="status" id="status">Temporary Notice</div>
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The site you requested is temporarily down for maintenance or an unexpected outage.
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</html>The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 4:20 AM PDT | Red Flag Warning | EKA | 8 hr | |
| Aug 16, 8:16 AM PDT | Special Weather Statement | EKA | Lake | 44 min |
| Aug 16, 9:21 AM PDT | Special Weather Statement | EKA | Mendocino | 39 min |
| Aug 16, 9:40 AM PDT | Special Weather Statement | EKA | Trinity | 50 min |
| Aug 16, 12:06 PM PDT | Red Flag Warning | EKA | 16 hr |
Nearby
Special Weather Statements in California, 2020Every special weather statement 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.