Alert archive / California / Special Weather Statements in 2012
Special Weather Statement, NWS Eureka, CA
NWS Eureka, CA issued this special weather statement at Aug 5, 2012, 5:02 PM PDT for Trinity County, California. It was in force for 43 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 5, 2012, 5:02 PM PDT (00:02 UTC)
- Expired
- Aug 5, 2012, 5:45 PM PDT
- In force
- 43 min
- Issued by
- NWS Eureka, CA
County Trinity County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 93 km from the middle of the area, began a volume at 00:03 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 5, 5:14 PM PDT | HAIL 0.75 | 1 S Del Loma, CA | HEAVY RAIN EARLIER BECAME LIGHTER WITH LARGER HAIL. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Medford/Jackson, OR (KMFR), launched 00:00Z, 0.0 hours before the alert went out and 169 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
- 265 J/kg
- Mixed-layer CIN
- -182 J/kg
- Mixed-layer LCL
- 2963 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- -9 m²/s²
- 0-3 km storm-relative helicity
- 94 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
208 WWUS86 KEKA 060002 SPSEKA SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE EUREKA CA 502 PM PDT SUN AUG 5 2012 CAZ004-060045- TRINITY CA- 502 PM PDT SUN AUG 5 2012 THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR... CENTRAL TRINITY COUNTY IN NORTHWEST CALIFORNIA UNTIL 545 PM PDT AT 459 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS NEAR DEL LOMA...MOVING NORTH AT 10 MPH. DIME SIZE HAIL AND WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THESE STORMS....ALONG WITH DANGEROUS LIGHTNING. LAT...LON 4105 12339 4097 12308 4068 12327 4074 12349 TIME...MOT...LOC 0001Z 199DEG 8KT 4080 12334 $$ RPA
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 5, 5:17 PM PDT | Areal Flood Advisory | EKA | Trinity | 67 min |
| Aug 5, 5:22 PM PDT | Areal Flood Advisory | EKA | Trinity | 62 min |
| Aug 5, 5:47 PM PDT | Special Weather Statement | EKA | Trinity | 43 min |
Nearby
Special Weather Statements in California, 2012Every special weather statement in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.