Alert archive / California / Wind Advisories in 2021
Wind Advisory 12, NWS Medford, OR
NWS Medford, OR issued this wind advisory at Feb 17, 2021, 3:01 AM PST for Siskiyou County, California; Lake County, Oregon. It took effect at Feb 18, 2021, 1:00 PM PST. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- Feb 17, 2021, 3:01 AM PST (11:01 UTC)
- In effect from
- Feb 18, 2021, 1:00 PM PST
- Expired
- Feb 19, 2021, 12:34 AM PST
- In force
- 12 hr
- Issued by
- NWS Medford, OR
Counties Siskiyou County, CA, Lake County, OR
The radar
The Medford radar (KMAX), 104 km from the middle of the area, began a volume at 11:02 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, 11.0 hours before the alert went out and 112 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
- 4 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 1265 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 106 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
045 WWUS76 KMFR 171101 NPWMFR URGENT - WEATHER MESSAGE National Weather Service Medford OR 301 AM PST Wed Feb 17 2021 CAZ081-180000- /O.NEW.KMFR.WI.Y.0012.210218T2100Z-210219T0600Z/ Central Siskiyou County- Including the city of Weed 301 AM PST Wed Feb 17 2021 ...WIND ADVISORY IN EFFECT FROM 1 PM TO 10 PM PST THURSDAY... * WHAT...South winds 15 to 30 mph with gusts up to 45 mph expected. * WHERE...Central Siskiyou County, including along Interstate 5 from Grenada south to Weed. * WHEN...From 1 PM to 10 PM PST Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ ORZ031-180000- /O.NEW.KMFR.WI.Y.0012.210218T2100Z-210219T0900Z/ Central and Eastern Lake County- 301 AM PST Wed Feb 17 2021 ...WIND ADVISORY IN EFFECT FROM 1 PM THURSDAY TO 1 AM PST FRIDAY... * WHAT...Southwest winds 15 to 30 mph with gusts up to 45 mph expected. * WHERE...Central and Eastern Lake County, including Highway 31 near Summer Lake. * WHEN...From 1 PM Thursday to 1 AM PST Friday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Visit us at https://www.weather.gov/Medford
5 follow-up statements
392 WWUS76 KMFR 172228 NPWMFR URGENT - WEATHER MESSAGE National Weather Service Medford OR 228 PM PST Wed Feb 17 2021 CAZ081-181430- /O.CON.KMFR.WI.Y.0012.210218T2100Z-210219T0600Z/ Central Siskiyou County- Including the city of Weed 228 PM PST Wed Feb 17 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 1 PM TO 10 PM PST THURSDAY... * WHAT...South winds 20 to 30 mph with gusts 40 to 50 mph expected. * WHERE...Southern portions of the Shasta Valley including the portion of Interstate 5 from Grenada south to Weed as well as portions of Highway 97 near Weed. * WHEN...From 1 PM to 10 PM PST Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Travel could become difficult for high profile vehicles. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ ORZ031-181430- /O.CON.KMFR.WI.Y.0012.210218T2100Z-210219T0900Z/ Central and Eastern Lake County- 228 PM PST Wed Feb 17 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 1 PM THURSDAY TO 1 AM PST FRIDAY... * WHAT...Southwest winds 20 to 30 mph with gusts 40 to 50 mph expected. * WHERE...Central and Eastern Lake County, including Highway 31 near Summer Lake. * WHEN...From 1 PM Thursday to 1 AM PST Friday. * IMPACTS...Gusty winds could blow around unsecured objects. Travel could become difficult for high profile vehicles. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ BTL Visit us at https://www.weather.gov/Medford
073 WWUS76 KMFR 180954 NPWMFR URGENT - WEATHER MESSAGE National Weather Service Medford OR 154 AM PST Thu Feb 18 2021 CAZ081-190100- /O.CON.KMFR.WI.Y.0012.210218T2100Z-210219T0600Z/ Central Siskiyou County- Including the city of Weed 154 AM PST Thu Feb 18 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 10 PM PST THIS EVENING... * WHAT...South winds 20 to 30 mph with gusts to 50 mph expected. * WHERE...Southern portions of the Shasta Valley including the portion of Interstate 5 from Grenada south to Weed as well as portions of Highway 97 near Weed. * WHEN...From 1 PM this afternoon to 10 PM PST this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Travel could become difficult for high profile vehicles. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ ORZ031-190100- /O.CON.KMFR.WI.Y.0012.210218T2100Z-210219T0900Z/ Central and Eastern Lake County- 154 AM PST Thu Feb 18 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 1 AM PST FRIDAY... * WHAT...Southwest winds 20 to 30 mph with gusts to 50 mph expected. * WHERE...Central and Eastern Lake County, including Highway 31 near Summer Lake. * WHEN...From 1 PM this afternoon to 1 AM PST Friday. * IMPACTS...Gusty winds could blow around unsecured objects. Travel could become difficult for high profile vehicles. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Visit us at https://www.weather.gov/Medford
403 WWUS76 KMFR 190137 NPWMFR URGENT - WEATHER MESSAGE National Weather Service Medford OR 537 PM PST Thu Feb 18 2021 CAZ081-190600- /O.CON.KMFR.WI.Y.0012.000000T0000Z-210219T0600Z/ Central Siskiyou County- Including the city of Weed 537 PM PST Thu Feb 18 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... * WHAT...South winds 20 to 30 mph with gusts to 50 mph expected. * WHERE...Southern portions of the Shasta Valley including the portion of Interstate 5 from Grenada south to Weed as well as portions of Highway 97 near Weed. * WHEN...Until 10 PM PST this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Travel could become difficult for high profile vehicles. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ ORZ031-190900- /O.CON.KMFR.WI.Y.0012.000000T0000Z-210219T0900Z/ Central and Eastern Lake County- 537 PM PST Thu Feb 18 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM PST FRIDAY... * WHAT...Southwest winds 20 to 30 mph with gusts to 50 mph expected. * WHERE...Central and Eastern Lake County, including Highway 31 near Summer Lake. * WHEN...Until 1 AM PST Friday. * IMPACTS...Gusty winds could blow around unsecured objects. Travel could become difficult for high profile vehicles. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Visit us at https://www.weather.gov/Medford
266 WWUS76 KMFR 190542 NPWMFR URGENT - WEATHER MESSAGE National Weather Service Medford OR 942 PM PST Thu Feb 18 2021 CAZ081-190645- /O.EXP.KMFR.WI.Y.0012.000000T0000Z-210219T0600Z/ Central Siskiyou County- Including the city of Weed 942 PM PST Thu Feb 18 2021 ...WIND ADVISORY WILL EXPIRE AT 10 PM PST THIS EVENING... Winds are diminishing in the Shasta Valley. $$ ORZ031-190900- /O.CON.KMFR.WI.Y.0012.000000T0000Z-210219T0900Z/ Central and Eastern Lake County- 942 PM PST Thu Feb 18 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM PST FRIDAY... * WHAT...Southwest winds 20 to 30 mph with gusts to 50 mph expected. * WHERE...Central and Eastern Lake County, including Highway 31 near Summer Lake. * WHEN...Until 1 AM PST Friday. * IMPACTS...Gusty winds could blow around unsecured objects. Travel could become difficult for high profile vehicles. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Visit us at https://www.weather.gov/Medford
046 WWUS76 KMFR 190834 NPWMFR URGENT - WEATHER MESSAGE National Weather Service Medford OR 1234 AM PST Fri Feb 19 2021 ORZ031-190945- /O.CAN.KMFR.WI.Y.0012.000000T0000Z-210219T0900Z/ Central and Eastern Lake County- 1234 AM PST Fri Feb 19 2021 ...WIND ADVISORY IS CANCELLED... Winds will continue to diminish through the night. $$ Visit us at https://www.weather.gov/Medford
The office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 17, 2:55 AM PST | Winter Weather Advisory | MFR | Modoc, Siskiyou | 46 hr |
| Feb 17, 2:13 AM PST | Gale Watch | MFR | 12 hr | |
| Feb 17, 2:00 PM PST | Gale Warning | MFR | 29 hr |
Nearby
Wind Advisories in California, 2021Wind Advisories in Oregon, 2021Every wind advisory in 2021
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.