Alert archive / California / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 3, NWS Eureka, CA
NWS Eureka, CA issued this severe thunderstorm warning at Jul 22, 2014, 4:58 PM PDT for Humboldt County, Trinity County, California. It was in force for 32 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
- Jul 22, 2014, 4:58 PM PDT (23:58 UTC)
- Expired
- Jul 22, 2014, 5:30 PM PDT
- In force
- 32 min
- Issued by
- NWS Eureka, CA
- Area
- Storm-based polygon
Counties Humboldt County, CA, Trinity County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 107 km from the middle of the area, began a volume at 00:01 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, 12.0 hours before the alert went out and 142 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
- 2115 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 213 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
791
WUUS56 KEKA 222358
SVREKA
CAC023-105-230030-
/O.NEW.KEKA.SV.W.0003.140722T2358Z-140723T0030Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EUREKA CA
458 PM PDT TUE JUL 22 2014
THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
EXTREME NORTHEASTERN HUMBOLDT COUNTY IN NORTHWEST CALIFORNIA...
NORTHWESTERN TRINITY COUNTY IN NORTHWEST CALIFORNIA...
* UNTIL 530 PM PDT
* AT 454 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM. THIS STORM WAS LOCATED OVER NORTHWESTERN
TRINITY COUNTY...OR 16 MILES EAST OF WILLOW CREEK...AND MOVING
NORTH AT 25 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
RURAL NORTHWESTERN TRINITY COUNTY AT 510 PM PDT
LAT...LON 4095 12323 4096 12347 4134 12349 4134 12347
4132 12345 4128 12345 4126 12343 4124 12345
4116 12339 4117 12335 4115 12330 4108 12324
4108 12322
TIME...MOT...LOC 2358Z 182DEG 22KT 4105 12335
$$3 follow-up statements
377
WWUS56 KEKA 230002
SVSEKA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EUREKA CA
502 PM PDT TUE JUL 22 2014
CAC023-105-230030-
/O.CON.KEKA.SV.W.0003.000000T0000Z-140723T0030Z/
HUMBOLDT CA-TRINITY CA-
502 PM PDT TUE JUL 22 2014
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM PDT
FOR NORTHWESTERN TRINITY AND EXTREME NORTHEASTERN HUMBOLDT
COUNTIES...
AT 501 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED OVER NORTHWESTERN TRINITY COUNTY...OR 17 MILES EAST OF
HOOPA...MOVING NORTH AT 25 MPH.
THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS
OF THE INDICATED COUNTIES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
&&
LAT...LON 4095 12323 4096 12347 4134 12349 4134 12347
4132 12345 4128 12345 4126 12343 4124 12345
4116 12339 4117 12335 4115 12330 4108 12324
4108 12322
TIME...MOT...LOC 0002Z 182DEG 22KT 4107 12335
$$
MKK053
WWUS56 KEKA 230022
SVSEKA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EUREKA CA
522 PM PDT TUE JUL 22 2014
CAC023-105-230030-
/O.CON.KEKA.SV.W.0003.000000T0000Z-140723T0030Z/
HUMBOLDT CA-TRINITY CA-
522 PM PDT TUE JUL 22 2014
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM PDT
FOR NORTHWESTERN TRINITY AND EXTREME NORTHEASTERN HUMBOLDT
COUNTIES...
AT 519 PM PDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.
THIS STORM WAS LOCATED OVER EXTREME SOUTHWESTERN SISKIYOU COUNTY...
OR 13 MILES SOUTHEAST OF ORLEANS...MOVING NORTH AT 25 MPH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
&&
LAT...LON 4105 12322 4105 12347 4134 12349 4134 12347
4132 12345 4128 12345 4126 12343 4124 12345
4116 12339 4117 12335 4115 12330 4108 12324
4108 12322
TIME...MOT...LOC 0022Z 182DEG 22KT 4119 12334
$$
MKK110
WWUS56 KEKA 230031
SVSEKA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EUREKA CA
531 PM PDT TUE JUL 22 2014
CAC023-105-230041-
/O.EXP.KEKA.SV.W.0003.000000T0000Z-140723T0030Z/
HUMBOLDT CA-TRINITY CA-
531 PM PDT TUE JUL 22 2014
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN TRINITY AND
EXTREME NORTHEASTERN HUMBOLDT COUNTIES HAS EXPIRED...
LAT...LON 4105 12322 4105 12347 4134 12349 4134 12347
4132 12345 4128 12345 4126 12343 4124 12345
4116 12339 4117 12335 4115 12330 4108 12324
4108 12322
TIME...MOT...LOC 0022Z 182DEG 22KT 4119 12334
$$The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 22, 3:46 PM PDT | Special Weather Statement | EKA | Trinity | 44 min |
| Jul 22, 3:54 PM PDT | Red Flag Warning | EKA | 4 hr | |
| Jul 22, 3:54 PM PDT | Severe Thunderstorm Warning | EKA | Trinity | 36 min |
| Jul 22, 4:29 PM PDT | Special Weather Statement | EKA | Trinity | 31 min |
| Jul 22, 4:35 PM PDT | Severe Thunderstorm Warning | EKA | Trinity | 25 min |
| Jul 22, 4:56 PM PDT | Special Weather Statement | EKA | Trinity | 34 min |
Nearby
Severe Thunderstorm Warnings in California, 2014Every severe thunderstorm warning in 2014
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.