Alert archive / California / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 1, NWS Eureka, CA
NWS Eureka, CA issued this severe thunderstorm warning at Mar 4, 1996, 1:06 PM PST for Humboldt County, California. It was in force for 64 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 4, 1996, 1:06 PM PST (21:06 UTC)
- Expired
- Mar 4, 1996, 2:10 PM PST
- In force
- 64 min
- Issued by
- NWS Eureka, CA
- Area
- Whole counties
County Humboldt County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 39 km from the middle of the area, began a volume at 21:06 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 4, 2:00 PM PST | Hail 0.75 | Shelter Cove, 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 12:00Z, 9.1 hours before the alert went out and 207 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
- 933 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 70 m²/s²
- 0-3 km storm-relative helicity
- 262 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KEKA 042134 RRA
SVREKA
CAC023-042210-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING FOR HIGH WINDS
NATIONAL WEATHER SERVICE EUREKA CA
106 PM PST MON MAR 04 1996
THE NATIONAL WEATHER SERVICE IN EUREKA CA HAS ISSUED A SEVERE
THUNDERSTORM WARNING FOR HIGH WINDS EFFECTIVE UNTIL 210 PM PST FOR
PEOPLE IN THE FOLLOWING LOCATIONS...
IN NORTHWESTERN CALIFORNIA
...SOUTHWESTERN HUMBOLDT COUNTY
INCLUDING HONEYDEW AND PETROLIA
POSSIBLE SEVERE THUNDERSTORM 5 MILES WEST OF CAPE MENDOCINO MOVING
NORTHEAST AT 35 MPH WITH POSSIBLE WINDS GREATER THAN 58 MPH.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 57 MPH
...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.What forecasters said that day
The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Mar 4, 8:05 AM PST, 5 hours 1 minute earlier.
Area forecast discussion, Mar 4, 8:05 AM PST, 5 hours 1 minute before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE EUREKA CA 800 AM PST MON MAR 4 1996 SQAL MOVG THRU HUMBOLDT BAY VCNTY MOVG NEWD ABT 30KTS ATTM. CNVGNT BANDS ROTG THRU BROAD FETCH CYC FLOW CNTRD ALG 130W. UPR LVL LOW CNTR BEING DRIVEN SEWD TO NR 30/130 AS DRIER/CLDR AIR SURGES SWD OFF CAN CST JUST WITH MSTR GRAD SWD 40N ATTM. CNVTV ASSOC WITH UPR LOW RAPPED ARND CNTR CONT MOV ESEWD AS THERMAL TROF AMP ALG CST THRUT TDA AND XPC SCT TSTM OVR CSTL WTRS. NOT MUCH TM LOOK AT LTST MDLS WITH TELE CALLS THIS MORNING AND WL MAKE SLGHT CHGS IN WORDG THIS UPDT FOR WND. POPS CEC +95 EKA +95 UKI +95
Nearby
Severe Thunderstorm Warnings in California, 1996Every severe thunderstorm warning in 1996
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.