Alert archive / California / Special Weather Statements in 2017
Special Weather Statement, NWS Eureka, CA
NWS Eureka, CA issued this special weather statement at Aug 6, 2017, 2:33 PM PDT for Trinity County, California. It was in force for 12 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
- Aug 6, 2017, 2:33 PM PDT (21:33 UTC)
- Expired
- Aug 6, 2017, 2:45 PM PDT
- In force
- 12 min
- Issued by
- NWS Eureka, CA
County Trinity County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 100 km from the middle of the area, began a volume at 21:34 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, 9.6 hours before the alert went out and 206 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
- 2593 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 54 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
519 WWUS86 KEKA 062133 SPSEKA Special Weather Statement National Weather Service Eureka CA 233 PM PDT SUN AUG 6 2017 CAZ108-062145- Southern Trinity CA- 233 PM PDT SUN AUG 6 2017 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN TRINITY COUNTY UNTIL 245 PM PDT... At 232 PM PDT, Doppler radar was tracking a strong thunderstorm near Hayfork, moving east at 10 mph. Half inch to dime size hail will be possible with this storm. Locations impacted may include... Hayfork. LAT...LON 4052 12315 4056 12314 4057 12305 4050 12308 TIME...MOT...LOC 2132Z 262DEG 7KT 4055 12308 $$ KR
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 2:18 PM PDT | Special Weather Statement | EKA | Trinity | 12 min |
| Aug 6, 2:48 PM PDT | Special Weather Statement | EKA | 12 min | |
| Aug 6, 2:54 PM PDT | Special Weather Statement | EKA | Trinity | 21 min |
| Aug 6, 2:58 PM PDT | Special Weather Statement | EKA | Trinity | 17 min |
| Aug 6, 3:08 PM PDT | Special Weather Statement | EKA | Trinity | 22 min |
| Aug 6, 3:16 PM PDT | Special Weather Statement | EKA | Glenn | 14 min |
| Aug 6, 3:32 PM PDT | Special Weather Statement | EKA | Trinity | 13 min |
| Aug 6, 3:37 PM PDT | Special Weather Statement | EKA | 8 min | |
| Aug 6, 3:49 PM PDT | Special Weather Statement | EKA | Trinity | 11 min |
| Aug 6, 4:04 PM PDT | Special Weather Statement | EKA | Siskiyou | 26 min |
| Aug 6, 4:16 PM PDT | Special Weather Statement | EKA | Trinity | 14 min |
| Aug 6, 4:39 PM PDT | Special Weather Statement | EKA | Siskiyou | 21 min |
| Aug 6, 4:53 PM PDT | Special Weather Statement | EKA | Trinity | 22 min |
| Aug 6, 4:57 PM PDT | Special Weather Statement | EKA | Siskiyou | 33 min |
Nearby
Special Weather Statements in California, 2017Every special weather statement in 2017
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.