Alert archive / California / Freeze Watches in 2019
Freeze Watch 3, NWS Eureka, CA
NWS Eureka, CA issued this freeze watch at Sep 28, 2019, 11:01 AM PDT for Humboldt County, Mendocino County, Trinity County, California. It took effect at Sep 30, 2019, 1:00 AM PDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Sep 28, 2019, 11:01 AM PDT (18:01 UTC)
- In effect from
- Sep 30, 2019, 1:00 AM PDT
- Expired
- Sep 29, 2019, 1:23 PM PDT
- In force
- Issued by
- NWS Eureka, CA
Counties Humboldt County, CA, Mendocino County, CA, Trinity County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 73 km from the middle of the area, began a volume at 18:04 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, 6.0 hours before the alert went out and 457 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
- 1682 m above ground
- 0-6 km bulk shear
- 0 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 0 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this freeze watch 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 freeze watch went out at Sep 28, 4:05 AM PDT, 6 hours 56 minutes earlier.
Area forecast discussion, Sep 28, 4:05 AM PDT, 6 hours 56 minutes before
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Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 28, 2:22 AM PDT | Small Craft Advisory | EKA | 37 hr | |
| Sep 28, 2:22 AM PDT | Hazardous Seas Warning | EKA | 7 hr | |
| Sep 28, 3:14 AM PDT | Frost Advisory | EKA | Humboldt, Mendocino, Trinity | 29 hr |
Nearby
Freeze Watches in California, 2019Every freeze watch in 2019
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.