Alert archive / California / Wind Advisories in 2023
Wind Advisory 30, NWS Eureka, CA
NWS Eureka, CA issued this wind advisory at Dec 25, 2023, 3:16 AM PST for Del Norte County, Humboldt County, Mendocino County, California. It took effect at Dec 26, 2023, 7:00 PM PST. It was in force for 24 hr.
The area
The counties it named.
The facts
- Issued
- Dec 25, 2023, 3:16 AM PST (11:16 UTC)
- In effect from
- Dec 26, 2023, 7:00 PM PST
- Expired
- Dec 27, 2023, 7:00 PM PST
- In force
- 24 hr
- Issued by
- NWS Eureka, CA
Counties Del Norte County, CA, Humboldt County, CA, Mendocino County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 47 km from the middle of the area, began a volume at 11:15 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, 11.3 hours before the alert went out and 210 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
- 1406 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 65 m²/s²
- 0-3 km storm-relative helicity
- 264 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
064 WWUS76 KEKA 251116 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 316 AM PST Mon Dec 25 2023 CAZ101-102-260000- /O.NEW.KEKA.WI.Y.0030.231227T1200Z-231228T0300Z/ Coastal Del Norte-Del Norte Interior- 316 AM PST Mon Dec 25 2023 ...WIND ADVISORY IN EFFECT FROM 4 AM TO 7 PM PST WEDNESDAY... * WHAT...South winds 25 to 35 mph with gusts up to 50 mph expected. * WHERE...Coastal Del Norte and Del Norte Interior. * WHEN...From 4 AM to 7 PM PST Wednesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...The strongest gusts will be restricted to high ridges and coastal headlands exposed to the south and east. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ103-105-106-260000- /O.NEW.KEKA.WI.Y.0030.231227T0900Z-231228T0000Z/ Northern Humboldt Coast-Northern Humboldt Interior- Southern Humboldt Interior- 316 AM PST Mon Dec 25 2023 ...WIND ADVISORY IN EFFECT FROM 1 AM TO 4 PM PST WEDNESDAY... * WHAT...Southeast winds 25 to 35 mph with gusts up to 50 mph expected. Gusts to 65 mph in high elevation, exposed areas. * WHERE...Northern Humboldt Coast, Northern Humboldt Interior and Southern Humboldt Interior. * WHEN...From 1 AM to 4 PM PST Wednesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...The strongest gusts will be restricted to high ridges and coastal headlands exposed to the south and east. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ104-260000- /O.NEW.KEKA.WI.Y.0030.231227T0300Z-231228T0300Z/ Southwestern Humboldt- 316 AM PST Mon Dec 25 2023 ...WIND ADVISORY IN EFFECT FROM 7 PM TUESDAY TO 7 PM PST WEDNESDAY... * WHAT...South winds 30 to 40 mph with gusts up to 55 mph expected. Gusts up to 70 mph on isolated mountain peaks. * WHERE...Southwestern Humboldt County. * WHEN...From 7 PM Tuesday to 7 PM PST Wednesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...The strongest gusts will be restricted to high ridges and coastal headlands exposed to the south and east. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ109-110-260000- /O.NEW.KEKA.WI.Y.0030.231227T1200Z-231228T0000Z/ Mendocino Coast-Northwestern Mendocino Interior- 316 AM PST Mon Dec 25 2023 ...WIND ADVISORY IN EFFECT FROM 4 AM TO 4 PM PST WEDNESDAY... * WHAT...Southeast winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Mendocino Coast and Northwestern Mendocino Interior. * WHEN...From 4 AM to 4 PM PST Wednesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...The strongest gusts will be restricted to high ridges and coastal headlands exposed to the south and east. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
9 follow-up statements
576 WWUS76 KEKA 252228 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 228 PM PST Mon Dec 25 2023 CAZ101-102-260600- /O.CON.KEKA.WI.Y.0030.231227T1200Z-231228T0300Z/ Coastal Del Norte-Del Norte Interior- 228 PM PST Mon Dec 25 2023 ...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM TO 7 PM PST WEDNESDAY... * WHAT...South winds 25 to 35 mph with gusts up to 65 mph expected. * WHERE...Coastal Del Norte and Del Norte Interior Counties. * WHEN...From 4 AM to 7 PM PST Wednesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ103-105-106-260600- /O.CON.KEKA.WI.Y.0030.231227T0900Z-231228T0000Z/ Northern Humboldt Coast-Northern Humboldt Interior- Southern Humboldt Interior- 228 PM PST Mon Dec 25 2023 ...WIND ADVISORY REMAINS IN EFFECT FROM 1 AM TO 4 PM PST WEDNESDAY... * WHAT...Southeast winds 25 to 35 mph with gusts up to 65 mph expected. * WHERE...Northern Humboldt Coast, Northern Humboldt Interior and Southern Humboldt Interior Counties. * WHEN...From 1 AM to 4 PM PST Wednesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ104-260600- /O.CON.KEKA.WI.Y.0030.231227T0300Z-231228T0300Z/ Southwestern Humboldt- 228 PM PST Mon Dec 25 2023 ...WIND ADVISORY REMAINS IN EFFECT FROM 7 PM TUESDAY TO 7 PM PST WEDNESDAY... * WHAT...South winds 30 to 40 mph with gusts up to 80 mph expected. * WHERE...Southwestern Humboldt County. * WHEN...From 7 PM Tuesday to 7 PM PST Wednesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ109-110-260600- /O.CON.KEKA.WI.Y.0030.231227T1200Z-231228T0000Z/ Mendocino Coast-Northwestern Mendocino Interior- 228 PM PST Mon Dec 25 2023 ...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM TO 4 PM PST WEDNESDAY... * WHAT...Southeast winds 25 to 35 mph with gusts up to 65 mph expected. * WHERE...Mendocino Coast and Northwestern Mendocino Interior Counties. * WHEN...From 4 AM to 4 PM PST Wednesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
041 WWUS76 KEKA 260607 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 1007 PM PST Mon Dec 25 2023 CAZ101-102-261415- /O.CON.KEKA.WI.Y.0030.231227T1200Z-231228T0300Z/ Coastal Del Norte-Del Norte Interior- 1007 PM PST Mon Dec 25 2023 ...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM TO 7 PM PST WEDNESDAY... * WHAT...South winds 25 to 35 mph with gusts up to 65 mph expected. * WHERE...Coastal Del Norte and Del Norte Interior Counties. * WHEN...From 4 AM to 7 PM PST Wednesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ103-105-106-261415- /O.CON.KEKA.WI.Y.0030.231227T0900Z-231228T0000Z/ Northern Humboldt Coast-Northern Humboldt Interior- Southern Humboldt Interior- 1007 PM PST Mon Dec 25 2023 ...WIND ADVISORY REMAINS IN EFFECT FROM 1 AM TO 4 PM PST WEDNESDAY... * WHAT...Southeast winds 25 to 35 mph with gusts up to 65 mph expected. * WHERE...Northern Humboldt Coast, Northern Humboldt Interior and Southern Humboldt Interior Counties. * WHEN...From 1 AM to 4 PM PST Wednesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ104-261415- /O.CON.KEKA.WI.Y.0030.231227T0300Z-231228T0300Z/ Southwestern Humboldt- 1007 PM PST Mon Dec 25 2023 ...WIND ADVISORY REMAINS IN EFFECT FROM 7 PM TUESDAY TO 7 PM PST WEDNESDAY... * WHAT...South winds 30 to 40 mph with gusts up to 80 mph expected. * WHERE...Southwestern Humboldt County. * WHEN...From 7 PM Tuesday to 7 PM PST Wednesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ109-110-261415- /O.CON.KEKA.WI.Y.0030.231227T1200Z-231228T0000Z/ Mendocino Coast-Northwestern Mendocino Interior- 1007 PM PST Mon Dec 25 2023 ...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM TO 4 PM PST WEDNESDAY... * WHAT...Southeast winds 25 to 35 mph with gusts up to 65 mph expected. * WHERE...Mendocino Coast and Northwestern Mendocino Interior Counties. * WHEN...From 4 AM to 4 PM PST Wednesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
652 WWUS76 KEKA 261106 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 306 AM PST Tue Dec 26 2023 CAZ103-105-106-262315- /O.EXT.KEKA.WI.Y.0030.231227T0600Z-231228T0000Z/ Northern Humboldt Coast-Northern Humboldt Interior- Southern Humboldt Interior- 306 AM PST Tue Dec 26 2023 ...WIND ADVISORY NOW IN EFFECT FROM 10 PM THIS EVENING TO 4 PM PST WEDNESDAY... * WHAT...Southeast winds 20 to 30 mph with gusts up to 50 mph expected. Isolated gusts to 65 mph on exposed peaks and in narrow coastal gaps. * WHERE...Northern Humboldt Coast, Northern Humboldt Interior and Southern Humboldt Interior. * WHEN...From 10 PM this evening to 4 PM PST Wednesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...The strongest gusts will be restricted to high ridges and coastal headlands exposed to the south and east. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ101-102-262315- /O.EXT.KEKA.WI.Y.0030.231227T1200Z-231228T0000Z/ Coastal Del Norte-Del Norte Interior- 306 AM PST Tue Dec 26 2023 ...WIND ADVISORY NOW IN EFFECT FROM 4 AM TO 4 PM PST WEDNESDAY... * WHAT...South winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Coastal Del Norte and Del Norte Interior. * WHEN...From 4 AM to 4 PM PST Wednesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...The strongest gusts will be restricted to high ridges and coastal headlands exposed to the south and east. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ109-110-262315- /O.EXT.KEKA.WI.Y.0030.231227T1500Z-231228T0000Z/ Mendocino Coast-Northwestern Mendocino Interior- 306 AM PST Tue Dec 26 2023 ...WIND ADVISORY NOW IN EFFECT FROM 7 AM TO 4 PM PST WEDNESDAY... * WHAT...Southeast winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Mendocino Coast and Northwestern Mendocino Interior. * WHEN...From 7 AM to 4 PM PST Wednesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...The strongest gusts will be restricted to high ridges and coastal headlands exposed to the south and east. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ104-262315- /O.CON.KEKA.WI.Y.0030.231227T0300Z-231228T0300Z/ Southwestern Humboldt- 306 AM PST Tue Dec 26 2023 ...WIND ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 7 PM PST WEDNESDAY... * WHAT...South winds 25 to 35 mph with gusts up to 55 mph expected. Isolated gusts to 70 mph on high mountain peaks and ridges. * WHERE...Southwestern Humboldt County. * WHEN...From 7 PM this evening to 7 PM PST Wednesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...The strongest gusts will be restricted to high ridges and coastal headlands exposed to the south and east. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
416 WWUS76 KEKA 262204 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 204 PM PST Tue Dec 26 2023 CAZ104-270600- /O.CON.KEKA.WI.Y.0030.231227T0300Z-231228T0300Z/ Southwestern Humboldt- 204 PM PST Tue Dec 26 2023 ...WIND ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 7 PM PST WEDNESDAY... * WHAT...South winds 25 to 35 mph with gusts up to 75 mph expected. * WHERE...Southwestern Humboldt County. * WHEN...From 7 PM this evening to 7 PM PST Wednesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ103-105-106-270600- /O.CON.KEKA.WI.Y.0030.231227T0600Z-231228T0000Z/ Northern Humboldt Coast-Northern Humboldt Interior- Southern Humboldt Interior- 204 PM PST Tue Dec 26 2023 ...WIND ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 4 PM PST WEDNESDAY... * WHAT...Southeast winds 25 to 35 mph with gusts up to 55 mph expected. Gusts up to 70 mph over the higher elevations. * WHERE...Northern Humboldt Coast, Northern Humboldt Interior and Southern Humboldt Interior Counties. * WHEN...From 10 PM this evening to 4 PM PST Wednesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ101-102-270600- /O.CON.KEKA.WI.Y.0030.231227T1200Z-231228T0000Z/ Coastal Del Norte-Del Norte Interior- 204 PM PST Tue Dec 26 2023 ...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM TO 4 PM PST WEDNESDAY... * WHAT...South winds 25 to 35 mph with gusts up to 55 mph expected. Gusts up to 65 mph over the higher elevations. * WHERE...Coastal Del Norte and Del Norte Interior Counties. * WHEN...From 4 AM to 4 PM PST Wednesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ109-110-270600- /O.CON.KEKA.WI.Y.0030.231227T1500Z-231228T0000Z/ Mendocino Coast-Northwestern Mendocino Interior- 204 PM PST Tue Dec 26 2023 ...WIND ADVISORY REMAINS IN EFFECT FROM 7 AM TO 4 PM PST WEDNESDAY... * WHAT...Southeast winds 20 to 30 mph with gusts up to 50 mph expected. Gusts up to 60 mph over the higher elevations. * WHERE...Mendocino Coast and Northwestern Mendocino Interior Counties. * WHEN...From 7 AM to 4 PM PST Wednesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
770 WWUS76 KEKA 270524 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 924 PM PST Tue Dec 26 2023 CAZ103-105-106-271330- /O.CON.KEKA.WI.Y.0030.231227T0600Z-231228T0000Z/ Northern Humboldt Coast-Northern Humboldt Interior- Southern Humboldt Interior- 924 PM PST Tue Dec 26 2023 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST WEDNESDAY... * WHAT...Southeast winds 25 to 35 mph with gusts up to 55 mph expected. Gusts up to 70 mph over the higher elevations. * WHERE...Northern Humboldt Coast, Northern Humboldt Interior and Southern Humboldt Interior Counties. * WHEN...Until 4 PM PST Wednesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ104-271330- /O.CON.KEKA.WI.Y.0030.000000T0000Z-231228T0300Z/ Southwestern Humboldt- 924 PM PST Tue Dec 26 2023 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST WEDNESDAY... * WHAT...South winds 25 to 35 mph with gusts up to 55 mph. Gusts up to 75 mph over the higher elevations. * WHERE...Southwestern Humboldt County. * WHEN...Until 7 PM PST Wednesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ101-102-271330- /O.CON.KEKA.WI.Y.0030.231227T1200Z-231228T0000Z/ Coastal Del Norte-Del Norte Interior- 924 PM PST Tue Dec 26 2023 ...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM TO 4 PM PST WEDNESDAY... * WHAT...South winds 25 to 35 mph with gusts up to 55 mph expected. Gusts up to 65 mph over the higher elevations. * WHERE...Coastal Del Norte and Del Norte Interior Counties. * WHEN...From 4 AM to 4 PM PST Wednesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ109-110-271330- /O.CON.KEKA.WI.Y.0030.231227T1500Z-231228T0000Z/ Mendocino Coast-Northwestern Mendocino Interior- 924 PM PST Tue Dec 26 2023 ...WIND ADVISORY REMAINS IN EFFECT FROM 7 AM TO 4 PM PST WEDNESDAY... * WHAT...Southeast winds 20 to 30 mph with gusts up to 50 mph expected. Gusts up to 60 mph over the higher elevations. * WHERE...Mendocino Coast and Northwestern Mendocino Interior Counties. * WHEN...From 7 AM to 4 PM PST Wednesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
456 WWUS76 KEKA 271320 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 520 AM PST Wed Dec 27 2023 CAZ111>113-272130- /O.EXA.KEKA.WI.Y.0030.000000T0000Z-231228T0000Z/ Northeastern Mendocino Interior-Southwestern Mendocino Interior- Southeastern Mendocino Interior- 520 AM PST Wed Dec 27 2023 ...WIND ADVISORY IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... * WHAT...South winds 20 to 30 mph with gusts up to 50 mph. * WHERE...Northeastern Mendocino Interior, Southwestern Mendocino Interior and Southeastern Mendocino Interior Counties. * WHEN...Until 4 PM PST this afternoon. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ109-110-272130- /O.EXT.KEKA.WI.Y.0030.231227T1320Z-231228T0000Z/ Mendocino Coast-Northwestern Mendocino Interior- 520 AM PST Wed Dec 27 2023 ...WIND ADVISORY NOW IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... * WHAT...South winds 20 to 30 mph with gusts up to 45 mph. Gusts up to 55 mph over the higher elevations. * WHERE...Mendocino Coast and Northwestern Mendocino Interior Counties. * WHEN...Until 4 PM PST this afternoon. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ101>103-105-106-272130- /O.CON.KEKA.WI.Y.0030.000000T0000Z-231228T0000Z/ Coastal Del Norte-Del Norte Interior-Northern Humboldt Coast- Northern Humboldt Interior-Southern Humboldt Interior- 520 AM PST Wed Dec 27 2023 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... * WHAT...South winds 25 to 35 mph with gusts up to 55 mph. Gusts up to 65 mph over the higher elevations. * WHERE...Coastal Del Norte, Del Norte Interior, Northern Humboldt Coast, Northern Humboldt Interior and Southern Humboldt Interior Counties. * WHEN...Until 4 PM PST this afternoon. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ104-272130- /O.CON.KEKA.WI.Y.0030.000000T0000Z-231228T0300Z/ Southwestern Humboldt- 520 AM PST Wed Dec 27 2023 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING... * WHAT...South winds 30 to 40 mph with gusts up to 55 mph. Gusts up to 75 mph over the higher elevations. * WHERE...Southwestern Humboldt County. * WHEN...Until 7 PM PST this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
167 WWUS76 KEKA 272117 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 117 PM PST Wed Dec 27 2023 CAZ101-103-109>113-272230- /O.CAN.KEKA.WI.Y.0030.000000T0000Z-231228T0000Z/ Coastal Del Norte-Northern Humboldt Coast-Mendocino Coast- Northwestern Mendocino Interior-Northeastern Mendocino Interior- Southwestern Mendocino Interior-Southeastern Mendocino Interior- 117 PM PST Wed Dec 27 2023 ...WIND ADVISORY IS CANCELLED... $$ CAZ102-105-106-280000- /O.CON.KEKA.WI.Y.0030.000000T0000Z-231228T0000Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior- 117 PM PST Wed Dec 27 2023 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... * WHAT...South winds 20 to 30 mph with gusts up to 50 mph. * WHERE...Del Norte Interior, Northern Humboldt Interior and Southern Humboldt Interior Counties. * WHEN...Until 4 PM PST this afternoon. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ104-280300- /O.CON.KEKA.WI.Y.0030.000000T0000Z-231228T0300Z/ Southwestern Humboldt- 117 PM PST Wed Dec 27 2023 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING... * WHAT...South winds 20 to 30 mph with gusts up to 55 mph. * WHERE...Southwestern Humboldt County. * WHEN...Until 7 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. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
969 WWUS76 KEKA 272245 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 245 PM PST Wed Dec 27 2023 CAZ102-105-106-272345- /O.CAN.KEKA.WI.Y.0030.000000T0000Z-231228T0000Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior- 245 PM PST Wed Dec 27 2023 ...WIND ADVISORY IS CANCELLED... $$ CAZ104-280300- /O.CON.KEKA.WI.Y.0030.000000T0000Z-231228T0300Z/ Southwestern Humboldt- 245 PM PST Wed Dec 27 2023 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING... * WHAT...South winds 20 to 30 mph with isolated gusts up to 55 mph over exposed ridges. * WHERE...Southwestern Humboldt County. * WHEN...Until 7 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. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
791 WWUS76 KEKA 280245 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 645 PM PST Wed Dec 27 2023 CAZ104-280345- /O.EXP.KEKA.WI.Y.0030.000000T0000Z-231228T0300Z/ Southwestern Humboldt- 645 PM PST Wed Dec 27 2023 ...WIND ADVISORY WILL EXPIRE AT 7 PM PST THIS EVENING... $$
What forecasters said that day
The local office's own words before this wind advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Eureka, CA wrote its last area forecast discussion before this wind advisory went out at Dec 24, 3:07 PM PST, 12 hours 9 minutes earlier.
Area forecast discussion, Dec 24, 3:07 PM PST, 12 hours 9 minutes before
AREA FORECAST DISCUSSION
National Weather Service Eureka CA
307 PM PST Sun Dec 24 2023
.SYNOPSIS...Periods of light rain are expected tonight through
Monday night. Tuesday generally dry weather is expected. Strong
wind, rain and high elevations snow is expected Wednesday.
Additional weather systems are possible late in the week.
&&
.DISCUSSION...Short Term...The flow aloft has become mainly
westerly this afternoon and an impulse moving through the flow is
approaching the area. This is bringing widespread high clouds to
the area and a few light showers. Areas that saw fog and low
clouds in the interior valleys have taken until the afternoon to
clear due to the lack of insolation. Light rain has started in
Humboldt and Del Norte counties. The Hires models are showing
slightly higher amounts than in previous forecasts and the NBM has
been trending higher. It looks like rain will be heaviest tonight
and then taper off on Christmas day. The new NBM still shows a
wide range with over an inch in some of the Del Norte county
mountains to only a quarter inch around Humboldt Bay. Rainfall
still looks fairly minimal in Trinity, Del Norte, and Lake
counties. Snow levels initially look to be around 6,000 feet and
then are expected to rise over 7,000 feet in the afternoon. It is
possible colder air will get trapped in Trinity county, but there
isn't expected to be enough precip for much snow to accumulate.
Late Monday afternoon and Monday night another impulse moving
through the westerly flow will bring more rain to the area. Again
it is expected to be concentrated in Humboldt and Del Norte
counties. Southeast Winds are expected to increase with this
system as well. Gusts of 30 to 35 mph are expected on the ridges
of Humboldt and Del Norte counties. Additional rainfall amounts of
a tenth to over a quarter of an inch are possible with this small
system. MKK
.LONG TERM...A series of upper level troughs will prolong this
period of active weather into mid to late week. A ridge will remain
partially over northern CA as a weak front pushes onshore early
Tuesday. Increasing southerly flow and WAA will keep the highest
rainfall totals confined to Del Norte and coastal Humboldt counties,
with GFS and Euro only indicating a few tenths of an inch in
accumulations. As an offshore trough digs into the PNW, a strong
surface low centered over the north Pacific will help steer
tropical moisture into the region as a landfalling AR on
Wednesday. The tightening pressure gradient along the coast will
make winds the primary hazard with this system. The NBM is
indicating a high probability for gusts of 50KTS, especially in
the King Range and elevations greater than 3,000 ft in Del Norte,
Humboldt and coastal Mendocino counties. Wind advisory criteria
will likely be confined to exposed ridges and coastal headlands,
but minor impacts will be widespread.
The surge of moisture with this AR will also produce a few periods
of moderate to heavy rainfall Wednesday into early Thursday. SREF
ensemble means and NBM probabilities are indicating that lower
elevations can expect between 0.75 and 1.5 inches, while higher
terrain could see 1.5 to 2.5 inches. Areas prone to strong
orographic lift may observe locally higher totals, the King Range
being of particular interest due to SW coastal orientation lining up
with the prevailing flow. The forecast is still indicating that this
will be a relatively warm system, confining frozen precipitation to
areas above 4,000 to 5,000 ft. Areas in Trinity County at these
elevations, such as Scott Mountain Pass, could see 3-6 inches by
early Thursday.
Another round of measurable rainfall is likely by Friday, although
winds will not be as significant. Model clusters are indicating the
prominent troughing pattern along the west coast will start to
become more zonal by next weekend, perhaps inhibiting this active
pattern.
&&
.AVIATION...The flow aloft has become mainly westerly this
afternoon and an impulse moving through the flow is approaching
the area. This is bringing widespread high clouds to the area.
Areas that saw fog and low clouds in the interior valleys have
taken until early this afternoon to clear due to the lack of
insolation. Occasional light rain has started this afternoon in
Humboldt and Del Norte counties. This will slowly bring down CIGS
this evening into the MVFR range. The HREF CIG probabilities are
fairly low that the coastal terminals will see CIGS below 1500 to
2000 feet. Ukiah may see fog again tonight, although confidence is
low on this. MKK
&&
.MARINE...A series of frontal passages will help to maintain an
active pattern this week. A long period NW swell will build into the
waters tonight, driving wave heights back up to small craft
conditions for the next few days. Winds will remain elevated in the
northern waters as these fronts clip northern CA Monday and Tuesday.
A stronger low pressure system will push nearer to the coast late
Tuesday into Wednesday. There is high confidence that widespread
gale force winds and heavy rain will occur across all marine zones
Wednesday through early Thursday. Gusts nearing 60KT are possible
in the northern outer waters during this period. Even as winds
are expected to diminish, the long period swell and responsive
wind waves will produce combined wave heights in excess of 20 ft
late Wednesday into Thursday. A high surf advisory may be required
for coastal areas Thursday. Seas will remain significantly
elevated through the end of the week.
&&
.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
None.
NORTHWEST CALIFORNIA COASTAL WATERS...
Small Craft Advisory until 3 PM PST Tuesday for PZZ450-470.
Gale Watch from Tuesday afternoon through Wednesday
afternoon for PZZ450-455-470-475.
Small Craft Advisory from 9 PM this evening to 3 PM PST
Tuesday for PZZ455-475.
&&
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For forecast zone information
see the forecast zone map online:
https://www.weather.gov/images/eka/zonemap.pngThe office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 24, 9:08 PM PST | Storm Watch | EKA | 17 hr | |
| Dec 25, 3:02 AM PST | Gale Warning | EKA | 60 hr | |
| Dec 25, 3:19 AM PST | Coastal Flood Advisory | EKA | Humboldt | 8 hr |
| Dec 25, 2:30 PM PST | Storm Warning | EKA | 46 hr |
Nearby
Wind Advisories in California, 2023Every wind advisory in 2023
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.