Alert archive / California / Wind Advisories in 2019
Wind Advisory 16, NWS Eureka, CA
NWS Eureka, CA issued this wind advisory at Oct 27, 2019, 12:24 PM PDT for Humboldt County, Mendocino County, Trinity County, California. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Oct 27, 2019, 12:24 PM PDT (19:24 UTC)
- Expired
- Oct 27, 2019, 5:00 PM PDT
- In force
- 5 hr
- Issued by
- NWS Eureka, CA
Counties Humboldt County, CA, Mendocino County, CA, Trinity County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 73 km from the middle of the area, began a volume at 19:27 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, 7.4 hours before the alert went out and 241 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
- 1859 m above ground
- 0-6 km bulk shear
- 102 kt
- 0-1 km storm-relative helicity
- -65 m²/s²
- 0-3 km storm-relative helicity
- -136 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
134 WWUS76 KEKA 271924 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 1224 PM PDT Sun Oct 27 2019 CAZ106-108-110-111-113-280000- /O.CAN.KEKA.HW.W.0002.000000T0000Z-191028T0000Z/ /O.NEW.KEKA.WI.Y.0016.191027T1924Z-191028T0000Z/ Southern Humboldt Interior-Southern Trinity- Northwestern Mendocino Interior-Northeastern Mendocino Interior- Southeastern Mendocino Interior- 1224 PM PDT Sun Oct 27 2019 ...WIND ADVISORY IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON... ...HIGH WIND WARNING IS CANCELLED... * WHAT...Northeast winds 15 to 25 mph with gusts up to 45 mph. * WHERE...Elevations above 1,500 feet in southeastern Humboldt, southern Trinity, and interior Mendocino counties. * WHEN...Until 5 PM PDT this afternoon. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
2 follow-up statements
117 WWUS76 KEKA 272134 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 234 PM PDT Sun Oct 27 2019 CAZ110-111-113-280545- /O.NEW.KEKA.FZ.W.0010.191028T0800Z-191028T1500Z/ /O.CON.KEKA.WI.Y.0016.000000T0000Z-191028T0000Z/ Northwestern Mendocino Interior-Northeastern Mendocino Interior- Southeastern Mendocino Interior- 234 PM PDT Sun Oct 27 2019 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON... ...FREEZE WARNING IN EFFECT FROM 1 AM TO 8 AM PDT MONDAY... * WHAT...Temperatures at or below 32 degrees are expected in the calm valleys. * WHAT...Northeast winds 15 to 25 mph along the ridges above 1,500 feet, with gusts up to 45 mph. * WHERE...Northwestern Mendocino Interior, Northeastern Mendocino Interior and Southeastern Mendocino Interior Counties. * WHEN...For the Freeze Warning, from 1 AM to 8 AM PDT Monday. For the Wind Advisory, until 5 PM PDT this afternoon. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ CAZ106-108-280000- /O.CON.KEKA.WI.Y.0016.000000T0000Z-191028T0000Z/ Southern Humboldt Interior-Southern Trinity- 234 PM PDT Sun Oct 27 2019 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON... * WHAT...Northeast winds 15 to 25 mph, with gusts up to 45 mph. * WHERE...Elevations above 1,500 feet in southeastern Humboldt and southern Trinity. * WHEN...Until 5 PM PDT this afternoon. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
592 WWUS76 KEKA 280003 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 503 PM PDT Sun Oct 27 2019 CAZ110-111-113-280815- /O.EXP.KEKA.WI.Y.0016.000000T0000Z-191028T0000Z/ /O.CON.KEKA.FZ.W.0010.191028T0800Z-191028T1500Z/ Northwestern Mendocino Interior-Northeastern Mendocino Interior- Southeastern Mendocino Interior- 503 PM PDT Sun Oct 27 2019 ...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 8 AM PDT MONDAY... ...WIND ADVISORY HAS EXPIRED... * WHAT...Sub-freezing temperatures as low as 29 expected. * WHERE...Northwestern Mendocino Interior, Northeastern Mendocino Interior and Southeastern Mendocino Interior Counties. * WHEN...For the Freeze Warning, from 1 AM to 8 AM PDT Monday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ CAZ106-108-280115- /O.EXP.KEKA.WI.Y.0016.000000T0000Z-191028T0000Z/ Southern Humboldt Interior-Southern Trinity- 503 PM PDT Sun Oct 27 2019 ...WIND ADVISORY HAS EXPIRED... The winds have diminished across the area. $$
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 27, 9:01 AM PDT | Small Craft Advisory | EKA | 66 hr | |
| Oct 27, 2:34 PM PDT | Freeze Warning | EKA | Del Norte, Humboldt, Mendocino | 12 hr |
Nearby
Wind Advisories in California, 2019Every wind advisory in 2019
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.