Alert archive / California / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 3, NWS Eureka, CA
NWS Eureka, CA issued this severe thunderstorm warning at May 5, 2016, 2:39 PM PDT for Humboldt County, California. It was in force for 36 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
- May 5, 2016, 2:39 PM PDT (21:39 UTC)
- Expired
- May 5, 2016, 3:15 PM PDT
- In force
- 36 min
- Issued by
- NWS Eureka, CA
- Area
- Storm-based polygon
County Humboldt County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 66 km from the middle of the area, began a volume at 21:41 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, 9.7 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
- 6 J/kg
- Mixed-layer CIN
- -196 J/kg
- Mixed-layer LCL
- 546 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
730 WUUS56 KEKA 052139 SVREKA CAC023-052215- /O.NEW.KEKA.SV.W.0003.160505T2139Z-160505T2215Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EUREKA 239 PM PDT THU MAY 5 2016 THE NATIONAL WEATHER SERVICE IN EUREKA CALIFORNIA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EAST CENTRAL HUMBOLDT COUNTY IN NORTHWESTERN CALIFORNIA... * UNTIL 315 PM PDT * AT 238 PM PDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL AND WIND GUSTS TO 40 MPH. THIS STORM WAS LOCATED 8 MILES SOUTH OF SALYER...OR 10 MILES SOUTH OF WILLOW CREEK. THIS STORM WAS NEARLY STATIONARY. * LOCATIONS IMPACTED INCLUDE... MOUNTAINOUS AREAS SOUTHWEST OF SALYER. PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO LARGE HAIL AND WINDS...CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY. LIGHTNING IS ONE OF NATURE'S LEADING KILLERS. REMEMBER... IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. && LAT...LON 4086 12359 4073 12355 4068 12364 4084 12373 TIME...MOT...LOC 2138Z 060DEG 3KT 4079 12363 $$ RPA
2 follow-up statements
597 WWUS56 KEKA 052157 SVSEKA SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EUREKA 257 PM PDT THU MAY 5 2016 CAC023-052215- /O.CON.KEKA.SV.W.0003.000000T0000Z-160505T2215Z/ HUMBOLDT CA- 257 PM PDT THU MAY 5 2016 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM PDT FOR EAST CENTRAL HUMBOLDT COUNTY... AT 256 PM PDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL AND WIND GUSTS TO 40 MPH. THIS STORM WAS LOCATED 9 MILES SOUTHWEST OF SALYER...OR 10 MILES SOUTH OF WILLOW CREEK. THIS STORM WAS NEARLY STATIONARY. LOCATIONS IMPACTED INCLUDE... MOUNTAINOUS AREAS SOUTHWEST OF SALYER. PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY. LIGHTNING IS ONE OF NATURE'S LEADING KILLERS. REMEMBER... IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 4086 12359 4073 12355 4068 12364 4084 12373 TIME...MOT...LOC 2156Z 060DEG 3KT 4078 12365 $$ RPA
454
WWUS56 KEKA 052213
SVSEKA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EUREKA
313 PM PDT THU MAY 5 2016
CAC023-052223-
/O.EXP.KEKA.SV.W.0003.000000T0000Z-160505T2215Z/
HUMBOLDT CA-
313 PM PDT THU MAY 5 2016
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL HUMBOLDT COUNTY
WILL EXPIRE AT 315 PM PDT...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE. HOWEVER HEAVY RAIN
IS STILL POSSIBLE WITH THIS THUNDERSTORM.
LAT...LON 4086 12359 4073 12355 4068 12364 4084 12373
TIME...MOT...LOC 2212Z 060DEG 3KT 4078 12365
$$
RPAThe office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 5:31 PM PDT | Special Weather Statement | EKA | Trinity | 29 min |
| May 5, 1:16 PM PDT | Special Weather Statement | EKA | Trinity | 44 min |
| May 5, 1:39 PM PDT | Special Weather Statement | EKA | Trinity | 36 min |
| May 5, 1:56 PM PDT | Severe Thunderstorm Warning | EKA | Trinity | 34 min |
| May 5, 2:06 PM PDT | Special Weather Statement | EKA | Trinity | 39 min |
| May 5, 2:22 PM PDT | Special Weather Statement | EKA | Trinity | 38 min |
| May 5, 2:32 PM PDT | Special Weather Statement | EKA | Humboldt | 43 min |
| May 5, 3:28 PM PDT | Special Weather Statement | EKA | Humboldt | 32 min |
Nearby
Severe Thunderstorm Warnings in California, 2016Every severe thunderstorm warning in 2016
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.