Alert archive / Oregon / High Surf Advisories in 2021
High Surf Advisory 8, NWS Medford, OR
NWS Medford, OR issued this high surf advisory at Dec 10, 2021, 3:41 PM PST for Coos County, Curry County, Douglas County, Oregon. It took effect at Dec 11, 2021, 4:00 PM PST. It was in force for 23 hr.
The area
The counties it named.
The facts
- Issued
- Dec 10, 2021, 3:41 PM PST (23:41 UTC)
- In effect from
- Dec 11, 2021, 4:00 PM PST
- Expired
- Dec 12, 2021, 2:35 PM PST
- In force
- 23 hr
- Issued by
- NWS Medford, OR
Counties Coos County, OR, Curry County, OR, Douglas County, OR
The radar
The Medford radar (KMAX), 135 km from the middle of the area, began a volume at 23:44 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, 11.7 hours before the alert went out and 108 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
- 774 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 99 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
991 WHUS46 KMFR 102341 CFWMFR Coastal Hazard Message National Weather Service Medford OR 341 PM PST Fri Dec 10 2021 ORZ021-022-120000- /O.NEW.KMFR.SU.Y.0008.211212T0000Z-211214T0000Z/ South Central Oregon Coast-Curry County Coast- 341 PM PST Fri Dec 10 2021 ...HIGH SURF ADVISORY IN EFFECT FROM 4 PM SATURDAY TO 4 PM PST MONDAY... * WHAT...Large breaking waves of 20 to 25 feet. * WHERE...All area beaches along the southern Oregon Coast, including the beaches of Coos, Curry and Douglas Counties. * WHEN...From 4 PM Saturday to 4 PM PST Monday. * IMPACTS...Large breaking waves will create hazardous conditions along and within the surf zone, and could inundate beaches and low lying shorelines. Beach erosion is possible, and exposed infrastructure may be damaged. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr PRECAUTIONARY/PREPAREDNESS ACTIONS... Stay away from the surf zone and off of jetties. Area beaches may become hazardous due to dangerous surf conditions. && $$ Visit us at https://www.weather.gov/Medford
2 follow-up statements
513 WHUS46 KMFR 112141 CFWMFR Coastal Hazard Message National Weather Service Medford OR 141 PM PST Sat Dec 11 2021 ORZ021-022-122300- /O.CON.KMFR.SU.Y.0008.211212T0000Z-211214T0000Z/ South Central Oregon Coast-Curry County Coast- 141 PM PST Sat Dec 11 2021 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST MONDAY... * WHAT...Large breaking waves of 20 to 25 feet. * WHERE...All area beaches along the southern Oregon Coast, including the beaches of Coos, Curry and Douglas Counties. * WHEN...From 4 PM Saturday to 4 PM PST Monday. * IMPACTS...Large breaking waves will create hazardous conditions along and within the surf zone, and could inundate beaches and low lying shorelines. Beach erosion is possible, and exposed infrastructure may be damaged. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr PRECAUTIONARY/PREPAREDNESS ACTIONS... Stay away from the surf zone and off of rocks, logs, and jetties. Area beaches may become hazardous due to dangerous surf conditions. && $$ Visit us at https://www.weather.gov/Medford BPN
765 WHUS46 KMFR 122235 CFWMFR Coastal Hazard Message National Weather Service Medford OR 235 PM PST Sun Dec 12 2021 ORZ021-022-122345- /O.CAN.KMFR.SU.Y.0008.000000T0000Z-211214T0000Z/ South Central Oregon Coast-Curry County Coast- 235 PM PST Sun Dec 12 2021 ...HIGH SURF ADVISORY IS CANCELLED... The high surf has subsided, but larger than normal breaking waves up to 22 feet will continue through Monday. $$ 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 |
|---|---|---|---|---|
| Dec 10, 3:56 AM PST | High Wind Warning | MFR | Coos, Curry, Douglas, Klamath, Lake | 54 hr |
| Dec 10, 2:15 PM PST | Hazardous Seas Warning | MFR | 3 days | |
| Dec 10, 2:55 PM PST | Wind Advisory | MFR | Lake | 43 hr |
| Dec 10, 3:52 PM PST | Winter Storm Warning | MFR | Coos, Curry, Douglas, Jackson, Josephine, Klamath and 1 more | 4 days |
| Dec 10, 3:52 PM PST | Winter Weather Advisory | MFR | Jackson, Josephine, Klamath, Lake | 4 days |
Nearby
High Surf Advisories in Oregon, 2021Every high surf 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.