Alert archive / California / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 5, NWS Eureka, CA
NWS Eureka, CA issued this severe thunderstorm warning at Nov 19, 2016, 4:10 PM PST for Humboldt County, California. It was in force for 14 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
- Nov 19, 2016, 4:10 PM PST (00:10 UTC)
- Expired
- Nov 19, 2016, 4:24 PM PST
- In force
- 14 min
- Issued by
- NWS Eureka, CA
- Area
- Storm-based polygon
County Humboldt County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 28 km from the middle of the area, began a volume at 00:10 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
Medford/Jackson, OR (KMFR), launched 00:00Z, 0.2 hours before the alert went out and 244 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
- 1689 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 162 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
630 WUUS56 KEKA 200010 SVREKA CAC023-200045- /O.NEW.KEKA.SV.W.0005.161120T0010Z-161120T0045Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EUREKA CA 410 PM PST SAT NOV 19 2016 THE NATIONAL WEATHER SERVICE IN EUREKA CALIFORNIA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHWESTERN HUMBOLDT COUNTY IN NORTHWESTERN CALIFORNIA... * UNTIL 445 PM PST * AT 409 PM PST...DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM NEAR HONEYDEW TO 7 MILES SOUTHEAST OF PETROLIA...AND MOVING NORTH AT 35 MPH. * LOCATIONS IMPACTED INCLUDE... HONEYDEW...GRIZZLY CREEK REDWOODS STATE PARK...RIO DELL...SCOTIA... PEPPERWOOD...CARLOTTA...BULL CREEK...SHIVELY AND HYDESVILLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL... DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. && LAT...LON 4043 12381 4020 12407 4023 12426 4059 12409 TIME...MOT...LOC 0009Z 201DEG 29KT 4025 12406 4024 12419 $$
1 follow-up statement
283
WWUS56 KEKA 200024
SVSEKA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EUREKA CA
424 PM PST SAT NOV 19 2016
CAC023-200033-
/O.CAN.KEKA.SV.W.0005.000000T0000Z-161120T0045Z/
HUMBOLDT CA-
424 PM PST SAT NOV 19 2016
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN HUMBOLDT COUNTY
IS CANCELLED...
THE STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING HAS BEEN CANCELLED.
LAT...LON 4043 12381 4020 12407 4023 12426 4059 12409
TIME...MOT...LOC 0021Z 201DEG 29KT 4035 12401 4034 12414
$$The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 19, 4:20 PM PST | Special Weather Statement | EKA | 25 min | |
| Nov 19, 11:34 PM PST | Special Marine Warning | EKA | 26 min |
Nearby
Severe Thunderstorm Warnings in California, 2016Every severe thunderstorm warning in 2016
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.