Alert archive / California / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 2, NWS Eureka, CA
NWS Eureka, CA issued this severe thunderstorm warning at Jan 3, 2026, 11:10 AM PST for Humboldt County, California. It was in force for 35 min. 4 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jan 3, 2026, 11:10 AM PST (19:10 UTC)
- Expired
- Jan 3, 2026, 11:45 AM PST
- In force
- 35 min
- Issued by
- NWS Eureka, CA
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Hail
- 0.0 in
- Wind
- 70.0 mph
County Humboldt County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 49 km from the middle of the area, began a volume at 19:10 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jan 3, 11:17 AM PST | TSTM WND DMG | 1 Wnw Shelter Cove, CA | A one-foot diameter tree was uprooted and fell into powerlines near Lariat Court in Shelter Cove. The tree fell on a fence nearly hitting an outbuilding. |
| Jan 3, 11:17 AM PST | TSTM WND DMG | Shelter Cove, CA | Three trees down on Hillside Drive in Shelter Cove. Estimated wind speeds of 60-70 mph. |
| Jan 3, 11:23 AM PST | TSTM WND DMG | 2 N Shelter Cove, CA | Tree down on King Peak Road blocking a quarter of the roadway. |
| Jan 3, 11:30 AM PST | TSTM WND DMG | 3 Ene Shelter Cove, CA | Many branches and a couple small trees down along Shelter Cove Road between Shelter Cove and Briceland. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Oakland, CA (KOAK), launched 12:00Z, 7.2 hours before the alert went out and 308 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
- 22 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 803 m above ground
- 0-6 km bulk shear
- 70 kt
- 0-1 km storm-relative helicity
- 116 m²/s²
- 0-3 km storm-relative helicity
- 170 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
477
WUUS56 KEKA 031910
SVREKA
CAC023-031945-
/O.NEW.KEKA.SV.W.0002.260103T1910Z-260103T1945Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Eureka CA
1110 AM PST Sat Jan 3 2026
The National Weather Service in Eureka has issued a
* Severe Thunderstorm Warning for...
South Central Humboldt County in northwestern California...
* Until 1145 AM PST.
* At 1110 AM PST, a severe thunderstorm was located near Shelter
Cove, moving north at 60 mph.
HAZARD...70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to
mobile homes, roofs, and outbuildings.
* Locations impacted include...
Shelter Cove, Honeydew and Ettersburg.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Anyone outdoors should move to shelter inside a well-built structure
and stay away from windows. This storm is capable of producing
widespread damaging winds.
&&
LAT...LON 4012 12417 4027 12414 4022 12390 4000 12397
4000 12402 4002 12406 4002 12407 4003 12408
4006 12408 4008 12409 4010 12411
TIME...MOT...LOC 1910Z 183DEG 50KT 3997 12408
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
RPA3 follow-up statements
311
WWUS56 KEKA 031913
SVSEKA
Severe Weather Statement
National Weather Service Eureka CA
1113 AM PST Sat Jan 3 2026
CAC023-031945-
/O.CON.KEKA.SV.W.0002.000000T0000Z-260103T1945Z/
Humboldt CA-
1113 AM PST Sat Jan 3 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 AM PST
FOR SOUTH CENTRAL HUMBOLDT COUNTY...
At 1113 AM PST, a severe thunderstorm was located over Shelter Cove,
moving north at 60 mph.
HAZARD...70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to mobile
homes, roofs, and outbuildings.
Locations impacted include...
Shelter Cove, Honeydew and Ettersburg.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Anyone outdoors should move to shelter inside a well-built structure
and stay away from windows. This storm is capable of producing
widespread damaging winds.
Tornadoes can develop quickly from severe thunderstorms. Seek shelter
immediately in an interior room on the lowest floor of a well-built
structure.
&&
LAT...LON 4012 12417 4027 12414 4022 12390 4000 12397
4000 12402 4002 12406 4002 12407 4003 12408
4006 12408 4008 12409 4010 12411
TIME...MOT...LOC 1910Z 183DEG 50KT 3998 12408
TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
RPA627 WWUS56 KEKA 031931 SVSEKA Severe Weather Statement National Weather Service Eureka CA 1131 AM PST Sat Jan 3 2026 CAC023-031945- /O.CON.KEKA.SV.W.0002.000000T0000Z-260103T1945Z/ Humboldt CA- 1131 AM PST Sat Jan 3 2026 ...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 AM PST FOR SOUTH CENTRAL HUMBOLDT COUNTY... At 1131 AM PST, a severe thunderstorm was located near Honeydew, moving north at 60 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Honeydew. PRECAUTIONARY/PREPAREDNESS ACTIONS... Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds. && LAT...LON 4022 12390 4013 12396 4018 12416 4027 12414 TIME...MOT...LOC 1913Z 183DEG 50KT 4002 12408 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...0.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ RPA
420 WWUS56 KEKA 031941 SVSEKA Severe Weather Statement National Weather Service Eureka CA 1141 AM PST Sat Jan 3 2026 CAC023-031951- /O.EXP.KEKA.SV.W.0002.000000T0000Z-260103T1945Z/ Humboldt CA- 1141 AM PST Sat Jan 3 2026 ...SEVERE THUNDERSTORM WARNING WILL EXPIRE AT 1145 AM PST FOR SOUTH CENTRAL HUMBOLDT COUNTY... The storm which prompted the warning has weakened below severe limits, and no longer poses an immediate threat to life or property. Therefore, the warning will be allowed to expire. && LAT...LON 4022 12390 4013 12396 4018 12416 4027 12414 TIME...MOT...LOC 1931Z 183DEG 50KT 4026 12406 $$ RPA
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 2, 10:46 PM PST | Storm Warning | EKA | 24 hr | |
| Jan 2, 11:45 PM PST | Winter Storm Warning | EKA | 64 hr | |
| Jan 3, 5:28 AM PST | Special Weather Statement | EKA | Humboldt | 32 min |
| Jan 3, 5:56 AM PST | Special Weather Statement | EKA | Humboldt | 34 min |
| Jan 3, 6:06 AM PST | Special Marine Warning | EKA | 39 min | |
| Jan 3, 6:52 AM PST | Special Marine Warning | EKA | 53 min | |
| Jan 3, 7:45 AM PST | Special Marine Warning | EKA | 60 min | |
| Jan 3, 8:52 AM PST | Special Marine Warning | EKA | 23 min | |
| Jan 3, 9:29 AM PST | Special Marine Warning | EKA | 16 min | |
| Jan 3, 9:33 AM PST | Special Marine Warning | EKA | 42 min | |
| Jan 3, 10:07 AM PST | Special Marine Warning | EKA | 38 min | |
| Jan 3, 10:11 AM PST | Special Marine Warning | EKA | 34 min | |
| Jan 3, 10:16 AM PST | Special Marine Warning | EKA | 44 min | |
| Jan 3, 10:40 AM PST | Severe Thunderstorm Warning | EKA | Humboldt | 35 min |
| Jan 3, 11:01 AM PST | Special Weather Statement | EKA | Humboldt | 29 min |
| Jan 3, 11:03 AM PST | Special Marine Warning | EKA | 27 min | |
| Jan 3, 11:05 AM PST | Special Marine Warning | EKA | 25 min | |
| Jan 3, 11:18 AM PST | Tornado Warning | EKA | Humboldt | 12 min |
| Jan 3, 11:25 AM PST | Special Weather Statement | EKA | Humboldt | 35 min |
| Jan 3, 11:27 AM PST | Special Weather Statement | EKA | Mendocino | 33 min |
| Jan 3, 11:30 AM PST | Areal Flood Advisory | EKA | Humboldt | 31 hr |
| Jan 3, 11:52 AM PST | Areal Flood Advisory | EKA | Mendocino | 4 hr |
| Jan 3, 11:59 AM PST | Special Weather Statement | EKA | Trinity | 61 min |
| Jan 3, 12:01 PM PST | Areal Flood Advisory | EKA | Humboldt | 4 hr |
| Jan 3, 12:24 PM PST | Flash Flood Warning | EKA | Humboldt | 4 hr |
| Jan 3, 12:32 PM PST | Special Marine Warning | EKA | 13 min | |
| Jan 3, 12:36 PM PST | Special Weather Statement | EKA | 24 min | |
| Jan 3, 12:55 PM PST | Special Marine Warning | EKA | 35 min | |
| Jan 3, 12:56 PM PST | Special Weather Statement | EKA | Mendocino | 34 min |
| Jan 3, 1:28 PM PST | Special Weather Statement | EKA | Mendocino | 32 min |
| Jan 3, 3:35 PM PST | Special Marine Warning | EKA | 11 min |
Nearby
Severe Thunderstorm Warnings in California, 2026Every severe thunderstorm warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.