Alert archive / California / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 5, NWS Eureka, CA
NWS Eureka, CA issued this severe thunderstorm warning at Jul 11, 2001, 2:34 PM PDT for Humboldt County, Trinity County, California. It was in force for 41 min. 1 report came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- Jul 11, 2001, 2:34 PM PDT (21:34 UTC)
- Expired
- Jul 11, 2001, 3:15 PM PDT
- In force
- 41 min
- Issued by
- NWS Eureka, CA
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Humboldt County, CA, Trinity County, CA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 11, 3:00 PM PDT | Hail 0.75 | Burnt Ranch, CA | Time approximate - based on relayed spotter report and radar data. |
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 12:00Z, 9.6 hours before the alert went out and 171 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
- 7 J/kg
- Mixed-layer CIN
- -453 J/kg
- Mixed-layer LCL
- 1260 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 68 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 112137 SVREKA CAC023-105-112215- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EUREKA CA 234 PM PDT WED JUL 11 2001 THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EXTREME EAST CENTRAL HUMBOLDT COUNTY IN NORTHWEST CALIFORNIA NORTHWESTERN TRINITY COUNTY IN NORTHWEST CALIFORNIA * UNTIL 315 PM PDT * AT 231 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES NORTH OF BURNT RANCH...OR ABOUT 12 MILES EAST OF WILLOW CREEK...MOVING NORTHWEST AT 15 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... 4 MILES NORTHEAST OF SALYER AT 250 PM PDT HOOPA AT 310 PM PDT HAIL...INTENSE RAIN AND STRONG DAMAGING WINDS ARE LIKELY WITH THIS STORM. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. 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 4090 12368 4074 12337 4105 12323 4107 12362
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 1:22 PM PDT | Severe Thunderstorm Warning | EKA | Trinity | 23 min |
| Jul 11, 1:48 PM PDT | Severe Thunderstorm Warning | EKA | Trinity | 42 min |
| Jul 11, 3:14 PM PDT | Severe Thunderstorm Warning | EKA | Humboldt, Trinity | 46 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.