Alert archive / Oregon / High Surf Advisories in 2021

High Surf Advisory 2, NWS Medford, OR

January 14, 2021Coos County, Curry County, Douglas County, Oregon

NWS Medford, OR issued this high surf advisory at Jan 14, 2021, 12:03 PM PST for Coos County, Curry County, Douglas County, Oregon. It took effect at Jan 15, 2021, 8:00 PM PST. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Jan 14, 2021, 12:03 PM PST (20:03 UTC)
In effect from
Jan 15, 2021, 8:00 PM PST
Expired
Jan 16, 2021, 8:00 AM PST
In force
12 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 20:07 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, 8.1 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.

Skew-T log-pSkew-T log-p diagram, Medford/Jackson, OR at 12:00Z on 2021-01-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Medford/Jackson, OR at 12:00Z on 2021-01-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1048 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
238 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

434 
WHUS46 KMFR 142003
CFWMFR

Coastal Hazard Message
National Weather Service Medford OR
1203 PM PST Thu Jan 14 2021

ORZ021-022-151500-
/O.NEW.KMFR.SU.Y.0002.210116T0400Z-210116T1600Z/
/O.NEW.KMFR.BH.S.0001.210117T1100Z-210117T2300Z/
South Central Oregon Coast-Curry County Coast-
1203 PM PST Thu Jan 14 2021

...HIGH SURF ADVISORY IN EFFECT FROM 8 PM FRIDAY TO 8 AM PST
SATURDAY...
...BEACH HAZARDS STATEMENT IN EFFECT FROM 3 AM PST SUNDAY MORNING 
THROUGH 3 PM PST SUNDAY AFTERNOON...

* WHAT...For the High Surf Advisory, large breaking waves of 20 to
  25 feet. For the Beach Hazards Statement, high and infrequent
  wave run-ups from a very long period swell arriving from the
  west-northwest will lead to a moderate to high likelihood of
  sneaker waves.

* WHERE...For the High Surf Advisory, primarily westerly facing
  portions of the immediate South Central Oregon Coast and Curry 
  County Coast. The sneaker wave threat is for all areas.

* WHEN...For the High Surf Advisory, from 8 PM Friday to 8 AM PST
  Saturday. For the Beach Hazards Statement, from 3 AM PST early
  Sunday morning through 3 PM PST Sunday afternoon.

* IMPACTS...Large breaking waves will create hazardous conditions
  along and within the surf zone, and could inundate beaches and
  low lying shorelines, especially leading up to and during high
  tide. Beach erosion is possible, and exposed infrastructure may
  be damaged. During the time period of the Beach Hazards
  Statement, sneaker waves will be possible. These sneaker waves
  could catch unsuspecting beachgoers by surprise by knocking them
  down and, possibly, carrying them into the cold and turbulent
  surf zone.

* ADDITIONAL DETAILS...High tides are currently running on the
  high side, though not as high as earlier this week. Beware of an
  increased risk along the coast from these breaking waves as the
  tide is coming in. 

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/mfr/HAZARD

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Stay away from the surf zone and off of jetties. Area beaches may
become hazardous due to dangerous surf conditions.

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
BTL
Visit us at https://www.weather.gov/Medford
4 follow-up statements
281 
WHUS46 KMFR 151152
CFWMFR

Coastal Hazard Message
National Weather Service Medford OR
352 AM PST Fri Jan 15 2021

ORZ021-022-160000-
/O.CON.KMFR.SU.Y.0002.210116T0400Z-210116T1600Z/
/O.CON.KMFR.BH.S.0001.210117T1100Z-210117T2300Z/
South Central Oregon Coast-Curry County Coast-
352 AM PST Fri Jan 15 2021

...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING TO
8 AM PST SATURDAY...
...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM LATE SATURDAY
NIGHT THROUGH SUNDAY AFTERNOON...

* WHAT...For the High Surf Advisory, large breaking waves of 20 to
  25 feet. For the Beach Hazards Statement, high and infrequent
  wave run-ups from a very long period swell arriving from the
  west-northwest will lead to a moderate to high likelihood of
  sneaker waves.

* WHERE...For the High Surf Advisory, primarily westerly facing
  portions of the immediate South Central Oregon Coast and Curry 
  County Coast. The sneaker wave threat is for all areas.

* WHEN...For the High Surf Advisory, from 8 PM Friday to 8 AM PST
  Saturday. For the Beach Hazards Statement, from 3 AM PST early
  Sunday morning through 3 PM PST Sunday afternoon.

* IMPACTS...Large breaking waves will create hazardous conditions
  along and within the surf zone, and could inundate beaches and
  low lying shorelines, especially leading up to and during high
  tide. Beach erosion is possible, and exposed infrastructure may
  be damaged. During the time period of the Beach Hazards
  Statement, sneaker waves will be possible. These sneaker waves
  could catch unsuspecting beachgoers by surprise by knocking them
  down and, possibly, carrying them into the cold and turbulent
  surf zone.

* ADDITIONAL DETAILS...High tides are currently running on the
  high side, though not as high as earlier this week. Beware of an
  increased risk along the coast from these breaking waves as the
  tide is coming in.

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/mfr/HAZARD

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Stay away from the surf zone and off of jetties. Area beaches may
become hazardous due to dangerous surf conditions.

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

Visit us at https://www.weather.gov/Medford
097 
WHUS46 KMFR 152231
CFWMFR

Coastal Hazard Message
National Weather Service Medford OR
231 PM PST Fri Jan 15 2021

ORZ021-022-161200-
/O.CON.KMFR.SU.Y.0002.210116T0400Z-210116T1600Z/
/O.CON.KMFR.BH.S.0001.210117T1100Z-210117T2300Z/
South Central Oregon Coast-Curry County Coast-
231 PM PST Fri Jan 15 2021

...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING TO
8 AM PST SATURDAY...
...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM LATE SATURDAY
NIGHT THROUGH SUNDAY AFTERNOON...

* WHAT...For the High Surf Advisory, large breaking waves of 20 to
  24 feet. For the Beach Hazards Statement, high and infrequent
  wave run-ups from a very long period swell arriving from the
  west will lead to a moderate to high likelihood of sneaker 
  waves.

* WHERE...For the High Surf Advisory, primarily westerly facing 
  portions of the immediate South Central Oregon Coast and Curry 
  County Coast. The sneaker wave threat is for all areas.

* WHEN...For the High Surf Advisory, from 8 PM this evening to 8 
  AM PST Saturday. For the Beach Hazards Statement, from 3 AM PST 
  early Sunday morning through 3 PM PST Sunday afternoon.

* IMPACTS...Large breaking waves will create hazardous 
  conditions along and within the surf zone, and could inundate 
  beaches and low lying shorelines, especially leading up to and 
  during high tide. Beach erosion is possible, and exposed 
  infrastructure may be damaged. During the time period of the 
  Beach Hazards Statement, sneaker waves will be possible. These 
  sneaker waves could catch unsuspecting beachgoers by surprise 
  by knocking them down and, possibly, carrying them into the 
  cold and turbulent surf zone.

* ADDITIONAL DETAILS...High tides are currently running on the 
  high side, though not as high as earlier this week. Beware of 
  an increased risk along the coast from these breaking waves as 
  the tide is coming in.

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/mfr/HAZARD

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Stay away from the surf zone and off of jetties. Area beaches may
become hazardous due to dangerous surf conditions.

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

Visit us at https://www.weather.gov/Medford
000 
WHUS46 KMFR 161148
CFWMFR

Coastal Hazard Message
National Weather Service Medford OR
348 AM PST Sat Jan 16 2021

ORZ021-022-161600-
/O.CON.KMFR.SU.Y.0002.000000T0000Z-210116T1600Z/
/O.CON.KMFR.BH.S.0001.210117T1100Z-210117T2300Z/
South Central Oregon Coast-Curry County Coast-
348 AM PST Sat Jan 16 2021

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 8 AM PST THIS
MORNING...
...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM LATE TONIGHT
THROUGH SUNDAY AFTERNOON...

* WHAT...For the High Surf Advisory, large breaking waves of 20 
  to 24 feet. For the Beach Hazards Statement, high and 
  infrequent wave run-ups from a very long period swell arriving 
  from the west will lead to a moderate to high likelihood of 
  sneaker waves.

* WHERE...For the High Surf Advisory, primarily westerly facing 
  portions of the immediate South Central Oregon Coast and Curry 
  County Coast. The sneaker wave threat is for all areas.

* WHEN...For the High Surf Advisory, until 8 AM PST this 
  morning. For the Beach Hazards Statement, from late tonight 
  through Sunday afternoon.

* IMPACTS...Large breaking waves will create hazardous 
  conditions along and within the surf zone, and could inundate 
  beaches and low lying shorelines, especially leading up to and 
  during high tide. Beach erosion is possible, and exposed 
  infrastructure may be damaged. During the time period of the 
  Beach Hazards Statement, sneaker waves will be possible. These 
  sneaker waves could catch unsuspecting beachgoers by surprise 
  by knocking them down and, possibly, carrying them into the 
  cold and turbulent surf zone.

* ADDITIONAL DETAILS...High tides are currently running on the 
  high side, though not as high as earlier this week. Beware of 
  an increased risk along the coast from these breaking waves as 
  the tide is coming in.

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/mfr/HAZARD

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Stay away from the surf zone and off of jetties. Area beaches may
become hazardous due to dangerous surf conditions.

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

Visit us at https://www.weather.gov/Medford
668 
WHUS46 KMFR 161546
CFWMFR

Coastal Hazard Message
National Weather Service Medford OR
746 AM PST Sat Jan 16 2021

ORZ021-022-170000-
/O.EXP.KMFR.SU.Y.0002.000000T0000Z-210116T1600Z/
/O.CON.KMFR.BH.S.0001.210117T1100Z-210117T2300Z/
South Central Oregon Coast-Curry County Coast-
746 AM PST Sat Jan 16 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM LATE TONIGHT
THROUGH SUNDAY AFTERNOON...
...HIGH SURF ADVISORY WILL EXPIRE AT 8 AM PST THIS MORNING...

* WHAT...Surf conditions will gradually improve today so the high
  surf advisory will be allowed to expire. However, conditions
  tonight will become hazardous again as high and infrequent wave
  run-ups from a very long period swell will result in a 
  moderate to high likelihood of sneaker waves.

* WHERE...All area beaches along the southern Oregon Coast,
  including the beaches of Coos, Curry and Douglas Counties.

* WHEN...From late tonight through Sunday afternoon.

* IMPACTS...Even during calm conditions, sneaker waves can sweep
  up the beach without warning and knock unsuspecting people over
  and pull them out to sea. Shock and hypothermia can occur
  quickly in the cold Pacific waters. Logs and other debris can be
  lifted and carried by these waves, crushing or entrapping
  unsuspecting victims underneath.

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/mfr/HAZARD

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

Visit us at https://www.weather.gov/Medford

The office that day

Everything else NWS Medford, OR issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 14, 2:08 AM PSTSmall Craft AdvisoryMFR68 hr
Jan 14, 12:03 PM PSTBeach Hazards StatementMFRCoos, Curry, Douglas3 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.