Alert archive / California / High Wind Watches in 2019
High Wind Watch 4, NWS Eureka, CA
NWS Eureka, CA issued this high wind watch at Nov 29, 2019, 2:11 AM PST for 4 counties in California. It took effect at Nov 30, 2019, 10:00 AM PST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Nov 29, 2019, 2:11 AM PST (10:11 UTC)
- In effect from
- Nov 30, 2019, 10:00 AM PST
- Expired
- Nov 30, 2019, 2:13 AM PST
- In force
- Issued by
- NWS Eureka, CA
Counties Del Norte County, CA, Humboldt County, CA, Mendocino County, CA, Trinity County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 60 km from the middle of the area, began a volume at 10:12 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 00:00Z, 10.2 hours before the alert went out and 204 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
- 980 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- -23 m²/s²
- 0-3 km storm-relative helicity
- -36 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
333 WWUS76 KEKA 291011 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 211 AM PST Fri Nov 29 2019 CAZ103-109-291815- /O.NEW.KEKA.HW.A.0004.191130T1800Z-191201T0600Z/ /O.CON.KEKA.FZ.W.0015.000000T0000Z-191129T1700Z/ Northern Humboldt Coast-Mendocino Coast- 211 AM PST Fri Nov 29 2019 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING... ...HIGH WIND WATCH IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY EVENING... * WHAT...For the Freeze Warning, sub-freezing temperatures as low as 28. For the High Wind Watch, southeast winds 20 to 40 mph with gusts up to 60 mph possible. * WHERE...Northern Humboldt Coast and the Mendocino Coast. * WHEN...For the Freeze Warning, until 9 AM PST this morning. For the High Wind Watch, from Saturday morning through Saturday evening. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles. Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$ CAZ101-291700- /O.CON.KEKA.FZ.W.0015.000000T0000Z-191129T1700Z/ Coastal Del Norte- 211 AM PST Fri Nov 29 2019 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING... * WHAT...Sub-freezing temperatures as low as 30 expected. Some areas may experience temperatures as low as 28. * WHERE...Coastal Del Norte. * WHEN...Until 9 AM PST this morning. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ CAZ102-104>108-110>113-291815- /O.NEW.KEKA.HW.A.0004.191130T1800Z-191201T0600Z/ Del Norte Interior-Southwestern Humboldt- Northern Humboldt Interior-Southern Humboldt Interior- Northern Trinity-Southern Trinity-Northwestern Mendocino Interior- Northeastern Mendocino Interior-Southwestern Mendocino Interior- Southeastern Mendocino Interior- 211 AM PST Fri Nov 29 2019 ...HIGH WIND WATCH IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY EVENING... * WHAT...Southeast winds 20 to 40 mph with gusts from 60 to 70 mph possible. * WHERE...Portions of northwest California, including terrain gaps, exposed coastal areas, and exposed ridges. * WHEN...From Saturday morning through Saturday evening. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$
3 follow-up statements
769 WWUS76 KEKA 291824 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 1024 AM PST Fri Nov 29 2019 CAZ102>113-300400- /O.CON.KEKA.HW.A.0004.191130T1800Z-191201T0600Z/ Del Norte Interior-Northern Humboldt Coast-Southwestern Humboldt- Northern Humboldt Interior-Southern Humboldt Interior- Northern Trinity-Southern Trinity-Mendocino Coast- Northwestern Mendocino Interior-Northeastern Mendocino Interior- Southwestern Mendocino Interior-Southeastern Mendocino Interior- 1024 AM PST Fri Nov 29 2019 ...HIGH WIND WATCH REMAINS IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY EVENING... * WHAT...Southeast winds 20 to 40 mph with gusts up to 70 mph possible. * WHERE...Portions of Northwest California, including terrain gaps, exposed coastal areas, and exposed ridges. * WHEN...Saturday morning through Saturday evening. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$
964 WWUS76 KEKA 300402 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 802 PM PST Fri Nov 29 2019 CAZ102>113-301215- /O.CON.KEKA.HW.A.0004.191130T1800Z-191201T0600Z/ Del Norte Interior-Northern Humboldt Coast-Southwestern Humboldt- Northern Humboldt Interior-Southern Humboldt Interior- Northern Trinity-Southern Trinity-Mendocino Coast- Northwestern Mendocino Interior-Northeastern Mendocino Interior- Southwestern Mendocino Interior-Southeastern Mendocino Interior- 802 PM PST Fri Nov 29 2019 ...HIGH WIND WATCH REMAINS IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY EVENING... * WHAT...Southeast winds 20 to 40 mph with gusts up to 70 mph possible. * WHERE...Portions of Northwest California, including terrain gaps, exposed coastal areas, and exposed ridges. * WHEN...Saturday morning through Saturday evening. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$
615 WWUS76 KEKA 301013 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 213 AM PST Sat Nov 30 2019 CAZ102>113-301815- /O.UPG.KEKA.HW.A.0004.191130T1800Z-191201T0600Z/ /O.NEW.KEKA.WI.Y.0018.191130T1600Z-191201T0600Z/ Del Norte Interior-Northern Humboldt Coast-Southwestern Humboldt- Northern Humboldt Interior-Southern Humboldt Interior- Northern Trinity-Southern Trinity-Mendocino Coast- Northwestern Mendocino Interior-Northeastern Mendocino Interior- Southwestern Mendocino Interior-Southeastern Mendocino Interior- 213 AM PST Sat Nov 30 2019 ...WIND ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 10 PM PST THIS EVENING... ...WIND ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 10 PM PST THIS EVENING... * WHAT...Southeast winds 25 to 40 mph. Gusts ranging from 45 to 60 mph. * WHERE...Portions of northwest California. Including terrain gaps, exposed coastal areas, and exposed ridges. * WHEN...From 8 AM this morning to 10 PM PST this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ101-301815- /O.NEW.KEKA.WI.Y.0018.191130T1600Z-191201T0600Z/ Coastal Del Norte- 213 AM PST Sat Nov 30 2019 ...WIND ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 10 PM PST THIS EVENING... * WHAT...Southeast winds 20 to 40 mph. Gusts ranging from 45 to 60 mph. * WHERE...Portions of northwest California. Including terrain gaps, exposed coastal areas, and exposed ridges. * WHEN...From 8 AM this morning to 10 PM PST this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 29, 2:48 AM PST | Gale Warning | EKA | 60 hr | |
| Nov 29, 2:48 AM PST | Small Craft Advisory | EKA | 34 hr | |
| Nov 29, 2:48 AM PST | Storm Warning | EKA | 42 hr | |
| Nov 29, 12:40 PM PST | Winter Storm Warning | EKA | Humboldt, Mendocino, Trinity | 42 hr |
Nearby
High Wind Watches in California, 2019Every high wind watch 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.