Alert archive / California / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 2, NWS Eureka, CA

July 1, 2025Trinity County, California

NWS Eureka, CA issued this severe thunderstorm warning at Jul 1, 2025, 5:01 PM PDT for Trinity County, California. It was in force for 44 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: Jul 1, 2025, 5:01 PM PDT (00:01 UTC)
Expired: Jul 1, 2025, 5:45 PM PDT
In force: 44 min
Issued by: NWS Eureka, CA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Trinity County, CA

The radar

The Eureka (Bunker Hill) radar (KBHX), 126 km from the middle of the area, began a volume at 00:04 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, 0.0 hours before the alert went out and 199 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 927 J/kg
Mixed-layer CIN: -131 J/kg
Mixed-layer LCL: 2749 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: -10 m²/s²
0-3 km storm-relative helicity: -9 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

759 
WUUS56 KEKA 020001
SVREKA
CAC105-020045-
/O.NEW.KEKA.SV.W.0002.250702T0001Z-250702T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Eureka CA
501 PM PDT Tue Jul 1 2025

The National Weather Service in Eureka has issued a

* Severe Thunderstorm Warning for...
  East Central Trinity County in northwestern California...

* Until 545 PM PDT.

* At 501 PM PDT, a severe thunderstorm was located near Douglas 
  City, or 9 miles southeast of Weaverville, moving southeast at 10 
  mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind
           damage to roofs, siding, and trees.

* Locations impacted include...
  Douglas City and Lewiston.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter inside a well-built structure and stay away from 
windows. This storm is capable of producing damaging winds and large 
hail.

Continuous cloud to ground lightning is occurring with this storm. 
Lightning is one of nature's leading killers. Remember, if you can 
hear thunder, you are close enough to be struck by lightning.

&&

LAT...LON 4064 12302 4075 12282 4069 12274 4069 12275
      4065 12273 4064 12274 4063 12271 4061 12271
      4058 12269 4057 12270 4058 12272 4056 12274
      4056 12277 4054 12279 4051 12279 4051 12285
      4049 12285 4047 12288 4045 12290 4045 12292
TIME...MOT...LOC 0000Z 319DEG 7KT 4064 12287

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

JB

1 follow-up statement

070 
WWUS56 KEKA 020044
SVSEKA

Severe Weather Statement
National Weather Service Eureka CA
544 PM PDT Tue Jul 1 2025

CAC105-020054-
/O.EXP.KEKA.SV.W.0002.000000T0000Z-250702T0045Z/
Trinity CA-
544 PM PDT Tue Jul 1 2025

...SEVERE THUNDERSTORM WARNING WILL EXPIRE AT 545 PM PDT FOR EAST 
CENTRAL TRINITY 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 4064 12302 4075 12282 4069 12274 4069 12275
      4065 12273 4064 12274 4063 12271 4061 12271
      4058 12269 4057 12270 4058 12272 4056 12274
      4056 12277 4054 12279 4051 12279 4051 12285
      4049 12285 4047 12288 4045 12290 4045 12292
TIME...MOT...LOC 0001Z 319DEG 7KT 4064 12287

$$

JB

The office that day

Everything else NWS Eureka, CA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 1, 5:14 PM PDT	Special Weather Statement	EKA	Trinity	31 min
Jul 1, 5:37 PM PDT	Flash Flood Warning	EKA	Trinity	3 hr
Jul 1, 5:44 PM PDT	Special Weather Statement	EKA	Trinity	31 min
Jul 1, 5:48 PM PDT	Special Weather Statement	EKA	Trinity	27 min
Jul 1, 5:53 PM PDT	Special Weather Statement	EKA	Trinity	22 min
Jul 1, 6:10 PM PDT	Special Weather Statement	EKA	Trinity	35 min
Jul 1, 6:44 PM PDT	Special Weather Statement	EKA	Trinity	31 min
Jul 1, 7:13 PM PDT	Special Weather Statement	EKA	Trinity	32 min
Jul 1, 7:21 PM PDT	Flash Flood Warning	EKA	Trinity	3 hr
Jul 1, 7:43 PM PDT	Special Weather Statement	EKA	Trinity	32 min
Jul 1, 7:55 PM PDT	Special Weather Statement	EKA	Siskiyou	35 min
Jul 1, 8:29 PM PDT	Special Weather Statement	EKA	Siskiyou	31 min
Jul 1, 8:42 PM PDT	Flash Flood Warning	EKA	Trinity	3 hr

Nearby

Severe Thunderstorm Warnings in California, 2025 Every severe thunderstorm warning in 2025

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.