Alert archive / California / Flash Flood Warnings in 2025
Flash Flood Warning 6, NWS Eureka, CA
NWS Eureka, CA issued this flash flood warning at Aug 26, 2025, 3:09 PM PDT for Trinity County, California. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 26, 2025, 3:09 PM PDT (22:09 UTC)
- Expired
- Aug 26, 2025, 6:15 PM PDT
- In force
- 3 hr
- Issued by
- NWS Eureka, CA
- Area
- Storm-based polygon
- Flood severity
- None
County Trinity County, CA
The radar
The Medford radar (KMAX), 122 km from the middle of the area, began a volume at 22:10 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
Oakland, CA (KOAK), launched 12:00Z, 10.2 hours before the alert went out and 366 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
- 1591 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- -1 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
879
WGUS56 KEKA 262209
FFWEKA
CAC105-270115-
/O.NEW.KEKA.FF.W.0006.250826T2209Z-250827T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Eureka CA
309 PM PDT Tue Aug 26 2025
The National Weather Service in Eureka has issued a
* Flash Flood Warning for...
Northeastern Trinity County in northwestern California...
* Until 615 PM PDT.
* At 309 PM PDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 inches of rain
have fallen. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Trinity Center.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Flooding is occurring or is imminent. It is important to know where
you are relative to streams, rivers, or creeks which can become
killers in heavy rains. Campers and hikers should avoid streams or
creeks.
&&
LAT...LON 4090 12276 4103 12288 4110 12281 4101 12266
FLASH FLOOD...RADAR INDICATED
$$
JB1 follow-up statement
049 WGUS76 KEKA 270110 FFSEKA Flash Flood Statement National Weather Service Eureka CA 610 PM PDT Tue Aug 26 2025 CAC105-270120- /O.EXP.KEKA.FF.W.0006.000000T0000Z-250827T0115Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Trinity CA- 610 PM PDT Tue Aug 26 2025 ...FLASH FLOOD WARNING WILL EXPIRE AT 615 PM PDT THIS EVENING FOR NORTHEASTERN TRINITY COUNTY... The heavy rain has ended. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. && LAT...LON 4090 12276 4103 12288 4110 12281 4101 12266 $$ MKK
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 25, 5:01 PM PDT | Special Weather Statement | EKA | Trinity | 14 min |
| Aug 25, 5:20 PM PDT | Special Weather Statement | EKA | Trinity | 25 min |
| Aug 25, 5:39 PM PDT | Special Weather Statement | EKA | Del Norte | 36 min |
| Aug 26, 12:17 AM PDT | Red Flag Warning | EKA | 21 hr | |
| Aug 26, 1:57 PM PDT | Special Weather Statement | EKA | Trinity | 33 min |
| Aug 26, 2:35 PM PDT | Special Weather Statement | EKA | Trinity | 25 min |
| Aug 26, 3:02 PM PDT | Special Weather Statement | EKA | Trinity | 28 min |
| Aug 26, 3:41 PM PDT | Special Weather Statement | EKA | Trinity | 34 min |
| Aug 26, 3:41 PM PDT | Special Weather Statement | EKA | Trinity | 34 min |
| Aug 26, 3:46 PM PDT | Special Weather Statement | EKA | Trinity | 29 min |
| Aug 26, 4:02 PM PDT | Special Weather Statement | EKA | Trinity | 28 min |
| Aug 26, 4:19 PM PDT | Special Weather Statement | EKA | Trinity | 26 min |
| Aug 26, 4:20 PM PDT | Special Weather Statement | EKA | Trinity | 25 min |
| Aug 26, 4:31 PM PDT | Special Weather Statement | EKA | Trinity | 29 min |
| Aug 26, 4:44 PM PDT | Flash Flood Warning | EKA | Trinity | 3 hr |
| Aug 26, 4:49 PM PDT | Special Weather Statement | EKA | Trinity | 26 min |
Nearby
Flash Flood Warnings in California, 2025Every flash flood 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.