Alert archive / California / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 2, NWS Eureka, CA
NWS Eureka, CA issued this severe thunderstorm warning at Mar 21, 2001, 5:44 PM PST for Trinity County, California. It was in force for 31 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Mar 21, 2001, 5:44 PM PST (01:44 UTC)
- Expired
- Mar 21, 2001, 6:15 PM PST
- In force
- 31 min
- Issued by
- NWS Eureka, CA
- Area
- Whole counties
County Trinity County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 101 km from the middle of the area, began a volume at 01:46 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 21, 5:45 PM PST | Hail 1 | Burnt Ranch, CA |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Medford/Jackson, OR (KMFR), launched 00:00Z, 1.7 hours before the alert went out and 193 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
- 90 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 1875 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 55 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS56 KEKA 220145 SVREKA CAC105-220215- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EUREKA CA 544 PM PST WED MAR 21 2001 THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WEST CENTRAL TRINITY COUNTY IN NORTHWEST CALIFORNIA * UNTIL 615 PM PST * AT 540 PM PST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER BURNT RANCH...OR ABOUT 12 MILES SOUTHEAST OF WILLOW CREEK...MOVING NORTHEAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... RURAL WESTERN TRINITY COUNTY AT 600 PM PST VERY LARGE HAIL IS POSSIBLE WITH THIS SEVERE THUNDERSTORM. IF YOU ARE IN THE PATH OF THE STORM...PUT YOUR CAR IN A GARAGE AND MOVE TO A SUBSTANTIAL SHELTER. REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN EUREKA. LAT...LON 4082 12355- 4075 12341 4084 12336 4092 12346
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 21, 4:27 PM PST | Severe Thunderstorm Warning | EKA | Mendocino | 33 min |
Nearby
Severe Thunderstorm Warnings in California, 2001Every severe thunderstorm warning in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.