Alert archive / California / Flash Flood Warnings in 2024
Flash Flood Warning 2, NWS Eureka, CA
NWS Eureka, CA issued this flash flood warning at Apr 23, 2024, 2:31 PM PDT for Trinity County, California. It was in force for 119 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
- Apr 23, 2024, 2:31 PM PDT (21:31 UTC)
- Expired
- Apr 23, 2024, 4:30 PM PDT
- In force
- 119 min
- Issued by
- NWS Eureka, CA
- Area
- Storm-based polygon
- Flood severity
- None
County Trinity County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 84 km from the middle of the area, began a volume at 21:32 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 12:00Z, 9.5 hours before the alert went out and 188 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
- 1727 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 33 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
224
WGUS56 KEKA 232131
FFWEKA
CAC105-232330-
/O.NEW.KEKA.FF.W.0002.240423T2131Z-240423T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Eureka CA
231 PM PDT Tue Apr 23 2024
The National Weather Service in Eureka has issued a
* Flash Flood Warning for...
West Central Trinity County in northwestern California...
* Until 430 PM PDT.
* At 231 PM PDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 3 inches of rain
have fallen. Additional rainfall amounts up to 1 inch are possible
in 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 and streets
as well as other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Del Loma.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 4069 12328 4065 12336 4072 12344 4080 12339
4080 12335 4078 12329
FLASH FLOOD...RADAR INDICATED
$$
RPA1 follow-up statement
782
WGUS76 KEKA 232322
FFSEKA
Flash Flood Statement
National Weather Service Eureka CA
422 PM PDT Tue Apr 23 2024
CAC105-232332-
/O.EXP.KEKA.FF.W.0002.000000T0000Z-240423T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Trinity CA-
422 PM PDT Tue Apr 23 2024
...FLASH FLOOD WARNING WILL EXPIRE AT 430 PM PDT THIS AFTERNOON FOR
WEST CENTRAL TRINITY COUNTY...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
&&
LAT...LON 4072 12344 4080 12339 4080 12335 4078 12329
4069 12328 4065 12336
$$
JLWThe office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 23, 1:26 PM PDT | Special Weather Statement | EKA | Trinity | 34 min |
| Apr 23, 2:00 PM PDT | Special Weather Statement | EKA | Trinity | 30 min |
Nearby
Flash Flood Warnings in California, 2024Every flash flood warning in 2024
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.