Alert archive / California / Flash Flood Warnings in 2025
Flash Flood Warning 3, NWS Eureka, CA
NWS Eureka, CA issued this flash flood warning at Jul 1, 2025, 8:42 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
- Jul 1, 2025, 8:42 PM PDT (03:42 UTC)
- Expired
- Jul 1, 2025, 11:45 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), 91 km from the middle of the area, began a volume at 03:45 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, 3.7 hours before the alert went out and 124 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
- 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
The text
As transmitted.
106
WGUS56 KEKA 020342
FFWEKA
CAC105-020645-
/O.NEW.KEKA.FF.W.0003.250702T0342Z-250702T0645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Eureka CA
842 PM PDT Tue Jul 1 2025
The National Weather Service in Eureka has issued a
* Flash Flood Warning for...
Northeastern Trinity County in northwestern California...
* Until 1145 PM PDT.
* At 842 PM PDT, Doppler radar indicated training thunderstorms
producing heavy rain across the warned area. 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...
Mainly rural areas of Northeastern Trinity County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 4120 12251 4112 12252 4112 12261 4124 12263
4133 12262 4133 12259 4134 12258 4135 12259
4136 12259 4137 12257 4135 12254 4134 12254
4124 12251 4124 12252 4123 12251 4121 12252
FLASH FLOOD...RADAR INDICATED
$$
JJW1 follow-up statement
424
WGUS76 KEKA 020640
FFSEKA
Flash Flood Statement
National Weather Service Eureka CA
1140 PM PDT Tue Jul 1 2025
CAC105-020650-
/O.EXP.KEKA.FF.W.0003.000000T0000Z-250702T0645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Trinity CA-
1140 PM PDT Tue Jul 1 2025
...FLASH FLOOD WARNING WILL EXPIRE AT 1145 PM PDT THIS EVENING FOR
NORTHEASTERN TRINITY COUNTY...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
&&
LAT...LON 4120 12251 4112 12252 4112 12261 4124 12263
4133 12262 4133 12259 4134 12258 4135 12259
4136 12259 4137 12257 4135 12254 4134 12254
4124 12251 4124 12252 4123 12251 4121 12252
$$
JJWThe office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 5:01 PM PDT | Severe Thunderstorm Warning | EKA | Trinity | 44 min |
| 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 |
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.