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Pacific Storm and Surf Forecast
Updated: Sunday, January 30, 2022 4:03 PM
Buoys: Northern CA - Southern CA - Hawaii - Gulf of Alaska - Pacific Northwest
Buoy Forecast:
Northern CA - Southern CA - Hawaii - Gulf of Alaska - Pacific Northwest
Pacific Links:  Atmospheric Models - Buoy Data - Current Weather - Wave Models
Forecast Archives: Enter Here
A chronology of recent Mavericks Underground forecasts. Once you enter, just click on the HTML file forecast you want to review (e.g. 073199.html equals July 31, 1999). To view the maps that correspond to that forecast date, select the html file labeled 073199 maps.html
2.0 - California & 3.0 - Hawaii
Using the 'Winter' Scale
(See Swell Category Table link at bottom of page)

Probability for presence of largest swells in near-shore waters of NCal, SCal or Hawaii.    

Issued for Week of Monday 1/31 thru Sun 2/6

Swell Potential Rating Categories
5 = Good probability for 3 or more days of Significant swell
4 = Good probability for 1-2 days of Significant swell
3 = Good probability for 3 or more days of Intermediate/Advanced swell
2 = Good probability for  1-2 days of
Intermediate/Advanced swell
1 = Good probability for 3 or more days of Impulse or Windswell
0 = Low probability for 1-2 days of Impulse or Windswell   

Small Gales for Dateline
High Pressure Blocking Pattern Continues for West Coast


Sunday, January 30, 2022 :

  • Buoy 233 (Pearl Harbor)/Buoy 239 (Lanai)/Buoy 238 (Barbers Pt): Seas were 4.9 ft @ 14.3 secs with swell 3.8 ft @ 13.8 secs from 270 degrees. Water temp 76.8 degs (Barbers Pt), NA (Lani 239), 76.3 (Pearl Harbor 233).
  • Buoy 106 (Waimea): Seas were 5.2 ft @ 13.3 secs with swell 3.8 ft @ 13.6 secs from 330 degrees. Water temp 76.6 degs.
  • Buoy 46025 (Catalina RDG): Seas were 3.3 ft @ 12.8 secs with swell 2.2 ft @ 12.7 secs from 224 degrees. Wind north-northeast at 10-14 kts. Water temperature 57.9 degs, 58.1 (Topanga 103), 58.6 degs (Long Beach 215), 59.4 (Del Mar 153), 58.6 (Imperial Beach 155). At Harvest Buoy (071) primary swell was 3.7 ft @ 12.4 secs from 275 degrees. At Santa Monica (028) swell was 2.5 ft @ 12.5 secs from 261 degrees. At Oceanside (045) swell was 1.3 ft @ 13.2 secs from 250 degrees. Southward at Pt Loma (191) swell was 2.4 ft @ 12.8 secs from 271 degrees. Water temp 60.6 degs.
  • Buoy 46012 (Half Moon Bay)/029 (Pt Reyes - Returned to Service!): Seas were 5.1 ft @ 12.5 secs with swell 2.8 ft @ 12.2 secs from 281 degrees. Wind at the buoy (012) was northwest at 6-8 kts. Water temp 55.0 degs (Pt Reyes 029), 53.4 (46026), 54.3 degs (SF Bar 142), and 54.0 (Santa Cruz 254).

See Hi-Res Buoy Dashboards (bottom of the page)

Swell Classification Guidelines

Significant: Winter - Swell 8 ft @ 14 secs or greater (11+ ft faces) for 8+ hours (greater than double overhead).
- Head high or better.
Advanced: Winter - Swell and period combination capable of generating faces 1.5 times overhead to double overhead (7-10 ft)
Summer - Chest to head high.
Intermediate/Utility Class: Winter - Swell and period combination generating faces at head high to 1.5 times overhead (4-7 ft).
- Waist to chest high.
Impulse/Windswell: Winter - Swell and period combination generating faces up to head high (1-4 ft) or anything with a period less than 11 secs.
- up to waist high swell. Also called 'Background' swell.

Surf Heights for Hawaii should be consider 'Hawaiian Scale' if period exceeds 14 secs.

Current Conditions
On Sunday (1/30) North and Central CA had set waves at chest to maybe head high and lined up and fairly clean with good form and a light crumble from light onshore winds. Protected breaks were waist to chest high and lined up and fairly clean but soft with some crumble on it too. At Santa Cruz surf was thigh to waist high and lined up but soft and with a little intermixed lump. In Southern California/Ventura waves were up to waist high and real clean but soft and weak. Central Orange County had sets at waist high and lined up with decent form and fairly glassy but with a little texture on it. South Orange County's best summertime breaks were thigh to barely waist high and lined up with decent form and glassy with a little texture on top. North San Diego had sets at thigh to waist high and lined up and real clean but weak. Hawaii's North Shore had surf at chest high and somewhat lined up and clean with good form but weak and inconsistent. The South Shore was waist to rarely chest high and a bit textured from sideshore trades. The East Shore was flat and nearly chopped from modest east trades.

See QuikCASTs for the 5 day surf overview or read below for the detailed view.

Meteorological Overview
On Sunday (1/30) California was getting leftover waves from a previous weak swell event. Hawaii was getting leftover swell from a gale previously west of the North Dateline region Tues-Wed (1/26) producing 33 ft seas. That swell is expected arriving in California early in the workweek. After that another small swell is expected for HI and CA from a generic gale that developed while tracking northeast to the North Dateline region Sat-Sun (1/30) with up to 38 ft seas aimed east. Beyond a second gale is forecast on the dateline Sun-Mon (1/31) producing 26 ft seas aimed well at Hawaii. A third is projected for the North Dateline region Tues-Wed (2/2) with up to 36 ft seas aimed east and a fourth even further north is projected on Thurs-Fri (2/4) with 38 ft seas aimed east. But all are to be small and quickly tracking hard northeast with only small swell likely even under the best of circumstances. Perhaps a better one to form on the dateline on Sun (2/6) tracking more to the east.

See all the details below...


Current marine weather and wave analysis plus forecast conditions for the next 72 hours

North Pacific

On Sunday (1/30) the jet was consolidated pushing firmly east off Japan on the 35N latitude line running east to about the dateline with winds 210 kts feeding a trough developing just on the dateline offering some support for gale development. East of there the jet split at 160W with the northern branch pushing northeast but not reaching the mainland supporting nothing but high pressure east of the split point. Over the next 72 hours energy levels in the jet are to hold at 200-210 kts between Japan and the dateline through Wed (2/2) but with no clearly defined troughs though some degree of support for gale development is likely given the solid wind speeds. The split point is to hold at 160W with winds in the northern branch reaching Alaska. Beyond 72 hours starting Thurs (2/3) winds to hold between Japan and the dateline at 180-200 kts with the split point steady at 160W but with no clearly defined troughs evolving but still offering some degrees of support for gale development. High pressure is to hold east of the split point through Mon (2/7). The jet has been previously projected to unzip in sync with the fading of the Active Phase of the MJO and the arrival of the Inactive Phase. But that has been delayed till about 2/8. The main concern is whether even that will have any significant effect on the jetstream.

Surface Analysis
On Sunday (1/30) residual swell from a gale previously over the North Dateline region was fading in Hawaii and bound for California (see Another North Dateline Gale below).

Over the next 72 hours swell from another gale previously over the North Dateline region is expected to target HI and CA (see Second North Dateline Gale below).


Also on Sun AM (1/30) Mon AM (1/31) a small fetch of west winds was building on the dateline from the northwest at 35 kts producing seas of 23 ft at 34N 180W aimed east at mostly Hawaii. In the evening fetch is to hold while falling southeast with seas 26 ft at 32.5N 176W aimed east. On Mon AM (1/31) fetch is to be fading from 30-35 kts with seas 21-22 ft at 33N 170W aimed east. The gale is to be gone after that. Small swell likely to result for Hawaii.

Oahu: Based on preliminary data expect swell arrival on Tues (2/1) afternoon building to 6.3 ft @ 14-15 secs (9.0 ft). Swell fading Wed AM (2/2) from 4.5 ft @ 12-13 secs (5.5 ft). Dribbles on Thurs AM (2/3) fading from 2.5 ft @ 11 secs (2.5 ft). Swell Direction: 325 degrees

North CA: Rough data suggests swell arrival on Fri (1/4) building to 2.1 ft @ 14 secs later (2.5-3.0 ft). Dribbles fading on Sat (1/5) from 2.0 ft @ 12 secs (2.0-2.5 ft). Swell Direction: 280 degrees

And on Tues AM (2/1) a small gael is forecast developing on the dateline with 50-55 kt west winds over a tiny area lifting northeast with seas building from 22 ft at 42N 180W aimed east. in the evening 45-50 kt winds to be lifting northeast fast with seas 35 ft over a tiny area at 46N 172.5W aimed east. On Wed AM (2/2) the gale is to be moving over the Central Aleutians with 35-40 kt west winds and seas 34 ft at 50.75N 171.75W aimed east. The gale is to be gone after that. Minimal swell is possible.

Another North Dateline Gale
On Tues AM (1/25) another small gale started building just west of the dateline with 45 kt northwest winds and seas building from 22 ft at 39.75N 167.5E aimed east. In the evening 50 kt northwest winds are to be just west of the dateline with 31 ft seas over a small area at 41.5N 170.5E aimed east. On Wed AM (1/26) the gale was lifting north while fading with 45 kt west winds over the North Dateline region with 31 ft seas at 43.75N 168.75E aimed east. This system was fading in the evening with 40-45 kt northwest winds and seas 28 ft at 44N 175E aimed east. Fetch was fading Thurs AM (1/27) from 30-35 kts with seas fading from 24 ft at 45N 173E aimed southeast. The gale is to be gone after that. Something to monitor.

Oahu: Swell fading on Sun (1/30) from 3.8 ft @ 14 secs (5.0 ft) early. Residuals on Mon (1/31) from 2.8 ft @ 13-14 secs (3.5-4.0 ft). Swell Direction: 315 degrees

North CA: Expect swell arrival on Mon (1/31) building to 2.5 ft @ 14-15 secs later (3.5 ft). Swell fading on Tues (2/1) from 2.5 ft @ 13-14 secs early (3.5 ft). Swell Direction: 294 degrees


Second North Dateline Gale
On Sat PM (1/29) a small gale started developing northwest of Hawaii producing 40-45 kts west winds and seas building from 33 ft over a tiny area at 39.5N 168.5W aimed east. On Sun AM (1/30) the gale was lifting north fast with 45 kt southwest winds and seas building to 36 ft at 45.5N 166.75W aimed east. The fetch is to be pushing over the East Aleutians in the evening while fading from 30- 35 kts from the northwest producing 28 ft seas at 51N 167W aimed east. Fetch and seas to dissipate from there.

Oahu: Expect sideband swell arrival on Mon (1/31) before sunrise building to 2.7 ft @ 13-14 secs (3.5 ft) at sunrise. Residuals fading on Tues (2/1) from 2.8 ft @ 12 secs (3.0-3.5 ft). Swell DIrection: 315 degrees

North CA: No meaningful swell forecast and whatever does arrive will be buried in local northwest windswell.


North Pacific Animations: Jetstream - Surface Pressure/Wind - Sea Height - Surf Height


Tropical Update
No tropical systems of interest are forecast.

California Nearshore Forecast

  • Mon (1/31) high pressure to start building in the Gulf with northwest winds 15-20 kts for North CA early and 10-15 kts for Central CA. In the afternoon northwest winds are forecast at 25-30 kts for North CA and 15-20 kts for Central CA. Maybe light rain for Cape Mendocino early.
  • Tues (2/1) high pressure rules supreme with northwest winds 30 kts for all of North CA and 15-20 kts for Central CA early building to 30-35 kts for North CA in the afternoon and 20-25 kts for Central CA.
  • Wed (2/2) north winds are forecast at 30 kts for North CA early and 20-25 kts off the Central CA coast (10-15 kts nearshore). In the afternoon northwest winds 25-30 kts for Cape Mendocino and 15-20 kts for the remainder of North CA and all of Central CA.
  • Thurs (2/3) north winds are forecast at 20-25 kts for Pt Arena northward early and 10 kts south of there holding all day.
  • Fri (2/4) north winds to be 10 kts from Pt Arena northward and north-northeast 10 kts south of there holding all day.
  • Sat (2/5) high pressure and northwest winds return at 25 kts early for Cape Mendocino and 15 kts down to the Golden Gate and 10 kts over Central CA and holding all day.
  • Sun (2/6) north to northeast winds are forecast at 10-15 kts for North and Central CA early holding all day.

Total snow accumulation for the next 10 days respectively for Squaw Valley, Sugar Bowl, Kirkwood and Mammoth at 0, 0, 0, and 0 inches.

Freezing level 9,500 ft today falling to 4,500 ft range Feb 1-2 then rising to 10,000 ft on 2/4 and unchanged beyond.


Tioga Pass/Pacific Crest Trail intersection forecast: Temps - Freeze Level (more here - scroll down to 'Resort Snow Forecasts>Central CA or North CA Caltrans & Backcountry')

Snow Models: (Scroll down for resort specific forecasts). Updated!


South Pacific

Surface Analysis
No swell producing fetch has occurred of is forecast.

Over the next 72 hours no swell producing fetch of interest is forecast.


North Pacific Animations: Jetstream - Surface Pressure/Wind - Sea Height - Surf Height




Marine weather and forecast conditions 3-10 days into the future

North Pacific

Beyond 72 hours starting Wed PM (2/2) another small gale is forecast building just west of the dateline with 45+ kt west winds over a small area and seas building from 27 ft at 36N 172E aimed east. The gale is to race east-northeast on Thurs AM (2/3) with 55 kt west winds and seas 33 ft at 39.25N 178.5W aimed east. In the evening the gale is lift northeast with 50 kt west winds and seas 35 ft at 44W 171.5W aimed east. On Fri AM 92/4) the gale is to be approaching the Eastern Aleutians with 45-50 kts west winds and seas 38 ft at 49N 167W aimed east. In the evening the gale is to fading over the East Aleutians with 35-40 kts west winds and seas 37 ft at 53N 161.5W aimed east. Something to monitor.

Perhaps another gale is to develop on the dateline Sun AM (2/6) producing 50+ kt west winds on the dateline and seas building from 27 ft at 38.5N 176E aimed east. In the evening 50 kt west winds are to be over the dateline lifting northeast with seas 37 ft at 41.25N 178.5W aimed east. Something to monitor.


South Pacific

Beyond 72 hours no swell producing fetch of interest is forecast.


MJO/ENSO Forecast


La Nina Evaporating - Kelvin Wave Pushing East
Summary - Cool subsurface water volume peaked under the equatorial Pacific on 10/15/21, beating last years volume, but is quickly fading at the surface in the East Equatorial Pacific. A stronger than expected Active Phase of the MJO in Dec has produced a Kelvin Wave that is plodding east through the Central Pacific. Water temps appear to be warming over the entire East Pacific, though still in La nina territory for the moment. A return to a more normal cadence of Active and Inactive MJO phases is starting now. It seems the the peak of La Nina is behind us. But the atmosphere will take much time to respond.

MJO/ENSO Discussion
The Madden Julian Oscillation (MJO) is a periodic weather cycle that tracks east along the equator circumnavigating the globe. It is characterized in it's Inactive Phase by enhanced trade winds and dry weather over the part of the equator it is in control of, and in it's Active Phase by slackening if not an outright reversing trade winds while enhancing precipitation. The oscillation occurs in roughly 20-30 day cycles (Inactive for 20-30 days, then Active for 20-30 days) over any single location on the planet, though most noticeable in the Pacific. During the Active Phase in the Pacific the MJO tends to support the formation of stronger and longer lasting gales resulting in enhanced potential for the formation of swell producing storms. Prolonged and consecutive Active MJO Phases in the Pacific help support the formation of El Nino. During the Inactive Phase the jet stream tends to split resulting in high pressure and less potential for swell producing storm development. Wind anomalies in the Kelvin Wave Generation Area (KWGA) are key for understanding what Phase the MJO is in over the Pacific. The KWGA is located on the equator from 135E-170W and 5 degs north and south (or on the equator from New Guinea east to the dateline). West wind anomalies in the KWGA suggest the Active Phase of the MJO in the Pacific, and east anomalies suggests the Inactive Phase. In turn the Active Phase strengthens and the Inactive Phase weakens the jetstream, which in turn enhances or dampens storm production respectively in the Pacific.
And the El Nino/La Nino cycle (collectively know as ENSO - El Nino Southern Oscillation) is a less frequent (about once every 7 years) but more impactful cycle that affects world wide weather. Specifically, strong El Nino events promote storm production in the Pacific while La Nina events suppress storm production. These therefore have a significant impact on the production of swell and surf. The paragraphs below analyze the state of the MJO and ENSO in the Pacific and provide forecasts for upcoming activity (or inactivity depending on the state and interaction of these two oscillations).

Overview: In 2019 warm equatorial waters were fading, and by August a tongue of cool water was tracking west on the equator from Ecuador over the Galapagos reaching to a point nearly south of Hawaii. A bit of a recovery tried to occur during Fall of 2019, with weak warm water building in the Nino 1.2 region, but cool water held in a pool off Peru. By April 2020 a cool pool was starting to build, forming a well defined cool tongue that evolved into La Nina, with it fully developing through July 2020. A slow dissolving of La Nina started in March 2021 with 2 Kelvin Waves sweeping east and arriving over the Galapagos in June. Weak warming set up over the equator with no cool waters present. NOAA declared La Nina dead. But cold water returned in July 2021 and a second pulse of La Nina developed and is continuing today, though possibly weaker with its foundation appearing to be in decline.

Fall /Winter 2021-2022 = 1.5 (California & Hawaii)
Rating based on a 1-10 scale: 1 being the lowest (small and infrequent surf conditions), 5 being normal/average, and 10 being extraordinary (frequent events of large, long period swells)

Rationale: It was assumed that the moderate La Nina from the Winter of 2020/2021 was on the wane and that a return to neutral ENSO state would set up over the Pacific Basin through the summer of 2021. But La Nina made a strong return by the end of Sept much like what the CFS model suggested would happen. A full double dip La Nina pattern took hold as we moved into November with this second La Nina dip being nearly as strong as the previous one. But a quick fade is forecast as we move into late December with the CFS predicting a return to a neutral wind anomaly pattern at that time and the low pressure bias making headway in to the KWGA in early Jan. Still it will take some time for the atmosphere to fully respond, resulting in a less than normal swell production forecast especially for Fall into early Winter. But by later in Feb 2022 perhaps a return to a more normal pattern might take hold. But it will be too little too late. As a result a significantly reduced number of storm days and storm intensity is expected Oct-Feb 2022, resulting in a below normal level of swells, with swell being below normal duration and period. But by March 2022, the number of storm days, intensity and duration of those storms should start improving as La Nina fades out. The status of the PDO is not known, though it appears to be returning to at least a neutral state, rather than the warm phase as previously projected thereby having no significant positive or negative effect on the long term outlook.

KWGA/Equatorial Surface Wind Analysis (KWGA - Kelvin Wave Generation Area - The area 5 degrees north and south of the equator from 170W to 135E)
Analysis (TAO Buoys): As of (1/29) 5 day average winds were strong from the east over the Eastern equatorial Pacific and strong east over the Central Pacific and strong east over the KWGA. Anomalies were neutral over the East equatorial Pacific and neutral over the Central Pacific and light east over the KWGA. (Note: These are 5 day average winds, versus realtime, so they lag what is happening today (by about 2.5 days).
1 Week Forecast (GFS Model): On (1/29) modest east anomalies were filling the KWGA. The 7 day forecast calls for east anomalies building in coverage and strength to strong status on 2/5 holding through the end of the model run on 2/6.

Kelvin Wave Generation Area wind monitoring model: West and East

MJO/WWB/Wind Projections:  
OLR Models: (1/29) No MJO signal was indicated today. The statistical model suggests no MJO signal till day 15 of the model run with a weak Inactive sign over the KWGA with the Active Phase building over the Maritime Continent. The dynamic model projects the Inactive Phase building on day 5 over the KWGA and strong on day 10 then fading some on day 15 while the Active Phase builds over the Maritime Continent.
Phase Diagrams 2 week forecast (ECMF and GEFS): (1/30) The statistical model depicts the Active Phase was exceedingly weak over the Indian Ocean and is forecast tracking east to the East Maritime Continent on day 15 of the model run and very weak. The dynamic model suggests the same but with the Active Phase modestly strong in the same position on day 15 of the model run.
40 day Upper Level Model (assumed to be a statistical mode and 1 week ahead of what is occurring at the surface): (1/29) A very weak Active MJO signal (wet air) was depicted over the Central equatorial Pacific today. The forecast indicates the Active Phase (wet air) steadily moving east tracking into Central America on 2/23. The Inactive Phase (dry air) is to be building over the West Pacific in earnest starting 2/13 at moderate to strong strength filling the KWGA then tracking east moving to the East Pacific at the end of the model run on 3/10. A new very weak Active Phase (wet air) is forecast starting to build over the far West Pacific at that time.
4 Week CFS Model (850 mb wind): (1/29) No MJO signal was depicted today but with modest east anomalies filling the KWGA. The forecast has east anomalies building in coverage and strength filling the KWGA with a solid Inactive Phase filling the KWGA 1/31-2/14 and with moderate to strong east anomalies holding filling the KWGA through the end of the model run on 2/26.
3 Month CFS Model (850 mb wind): (1/30 - using the 5th ensemble member - the mean of the 4 individual members which are all from the 00Z run - 1 run per day): Today the Inactive Phase was starting to peak over the KWGA with seas east anomalies starting to fill the KWGA. The forecast has east anomalies building over the KWGA peaking near 2/15 on the dateline as the Inactive Phase pushes east and is east of the KWGA on 3/2. On 2/4 a coherent Active Phase of the MJO is to start pushing east over the western KWGA filling it by 2/23 with west anomalies moving east from the Maritime Continent into the KWGA on 3/1. The Active Phase is to hold over the KWGA through 3/29 with moderate west anomalies filling the KWGA. The Inactive Phase is to develop 3/20 in the west KWGA tracking east through 4/20 but with weak west anomalies in control. The Active Phase to develop 4/19 pushing east through the end of the model run on 4/29 with west anomalies in control. The low pass filter indicates a high pressure bias with 1 contour line was centered a bit east of the dateline with its western perimeter at 170E today moving to the dateline by 3/27 and slowly easing east from there. A broad single contour low pressure bias is established centered over the Maritime Continent at 100E with it's leading edge at 135E and barely in the KWGA but is forecast starting to move east further into the KWGA to 170E on 3/19 filling 75% of the KWGA and building further east quicker to nearly the dateline at the end of the model run on 4/29. Today a solid east anomaly pattern that had been in control of KWGA since early July is gone. A return to a more normal MJO alternating pattern is developing. This should signal the demise of La Nina. That said, there is only one more Active MJO forecast for this winter, in the late Feb/early March timeframe.

CFSv2 3 month forecast for 850 mb winds, MJO, Rossby etc - Alternate link

Subsurface Waters Temps
TAO Array: (1/30) Today in the far West Pacific the 29 degree isotherm was steady at 173E. The 28 deg isotherm line was steady at 176W. The 24 deg isotherm was easing east to 128W. Anomaly wise, warm anomalies +3 deg C were building with their leading edge moving east to about 130W and showing signs of drifting east more. All sensors are down at 140W so there is some doubt concerning the above statement. Cool anomalies were fading at -2 degs C 75 meters down at 105W and tracking east. The hi-res GODAS animation posted 1/23 indicates a Kelvin Wave pushing east with 4-5 degs warm anomalies with its eastern edge at 125W with cool anomalies at -5 degs C 25 meters down and pushing to the surface at 100W. The GODAS animation appears to be 1 week behind the TAO data but also is more detailed and accurately modeled.
Sea Level Anomalies: (1/23) Sea heights were negative over the East equatorial Pacific from Ecuador to 125W at -5 to -10 cms and losing coverage quickly. Positive anomalies were creeping east from 178E previously to 135W today. It appears a Kelvin Wave is pushing east. La Nina is trying to hold on but appears to be getting significantly challenged by warmer water encroaching from the west. Per the Upper Ocean Heat Anomaly Histogram La Nina subsurface cold temperatures peaked in coverage in mid-Oct, then started rapidly collapsing while being pushed east. Warm water was fast moving east with it's leading edge today at 127W. It appears a Kelvin Wave is moving east, the first since last summer likely signaling the demise of La Nina.

Surface Water Temps
The more warm water in the equatorial East Pacific means more storm production in the North Pacific during winter months (roughly speaking). Cold water in that area has a dampening effect. Regardless of what the atmospheric models and surface winds suggest, actual water temperatures are a ground-truth indicator of what is occurring in the ocean. All data is from blended infrared and microwave sensors.
Satellite Imagery
Hi-res Nino1.2 & 3.4 Qualitative Analysis: (1/29) The latest images depict a broad stream of cool water on the equator extending west from just off Ecuador peaking between 100W to 120W then weaker west of there to the dateline. But the core of this pool is rapidly fading in intensity and coverage day by day. Its pretty amazing how quick the demise is. The classic La Nina pattern is in quick retreat. There are signs of warming along the coasts of Chile and Peru. An area of warm water was holding just north of the equator across the entire North Pacific. Overall this indicates the demise of La Nina.
Hi-res 7 day Trend (1/29): Significant warming was occurring from Ecuador west on the equator to 160W. No cooling was evident.
Hi-res Overview: (1/29) The magnitude of the core of the La Nina cool pool is fading quickly. But weaker residual cool waters were still covering a large area from Peru up to the equator and west to the dateline. Cooler than normal waters were also south of that line down to 20S though losing coverage and intensity. Warmer than normal waters were aligned from 3N and above over the entire North Pacific. La Nina is solid but appears to be fading focused over the equatorial East Pacific.
Nino1.2 Daily CDAS Index Temps: (1/30) Today's temps were dropping to -1.421 after rising to -0.650 degs on 1/9 and that after being down at -1.871 on 1/3 and -1.954 on 12/18, the lowest this year so far. Previously temps rose to -1.432 on 11/29 and that after dropping on 11/24 at -1.700, the lowest in months after previously toggling steady at about -0.6 degs from mid Aug to Oct 6, then falling from there. Before that temps were toggling around neutral 6/13-8/5 except for one dip to -0.411 on 7/8. Prior to that temps peaked on 3/16 when they briefly hit +0.714 degs. Last year temps bottomed out at -2.138 on 8/13/20. The longterm trend has been steadily downward.
Nino 3.4 Daily CDAS Index Temps:
(1/30) Today's temps were steady at -0.590 after reaching a peak low of -1.096 on 1/3 beating the previous low of -1.080 on 11/2, the lowest in a year. Prior to that temps had been in a freefall starting from the -0.175 range in early Sept. Before that temps peaked up at 7/1 +0.332, the highest in a year. Temps previously had been steady near -0.222 since early March. Temps bottomed out at -1.654 on 11/3/2020.

Click for Full Sized Image Click for Full Sized Image

CFSV2 Forecast for Nino3.4 Sea Surface Temp (SST) Anomalies & Current SST Anomalies

SST Anomaly Projections
CFSv2 Uncorrected Data (1/30) - Temps rose in early Nov 2020 after bottoming out at -1.25 degs, up to -0.01 degs in mid-June 2021 then fading to -0.3 degs through Aug down to -1.05 degs in mid-Nov and holding. The forecast indicates temps slowly toggling upwards to -0.70 degs in Feb then falling to -1.05 degs in May only to resettle at -0.80 degs in the July and beyond. This model suggests we are at or almost past the peak of La Nina temperatures this Winter. But there is no indication that El Nino will develop and if anything we'll fall into a weak steady state La Nina beyond. The PDF Corrected forecast suggests the same as the uncorrected version. Still, neither of these forecasts seems realistic (see IRI Consensus forecast below).
IRI Consensus Plume: The Jan 13, 2022 Plume depicts temps are -0.960 degs today and have bottomed out. They are to warm to -0.586 degrees in March, then rising to -0.011 degs in July and neutral after that. A return to ENSO neutral is expected this summer.
See chart here - link.

Atmospheric Coupling (Indicating the presence of El Nino in the atmosphere driven by the ocean):
Southern Oscillation Index (SOI) (negative is good, positive bad - this is a lagging indicator):
Today (1/30) the daily index was positive at +24.03 after peaking at +46.71 on 12/26. The trend of late has been more towards negative readings lately after previously being towards positive readings with previous notable peaks at +30.98 on 11/26, +36.90 on 9/28, +27.75 on 9/13 and +37.86 on 7/15.
The 30 day average was rising at +1.83 after falling to +0.83 on 1/27 then peaking at +13.07 on 12/31 (the highest in a year) after previously falling to +6.06 on 11/6 after peaking at +11.58 on 10/22. Before that it fell to -3.36 on 6/22, the lowest in a year. It peaked at +19.51 on 1/14.
The 90 day average was rising at +9.01 today after previously peaking at +10.90 on 12/26, falling to +7.10 on 11/1. It previously peaking on 9/21 at +9.80 after falling to it's lowest point in a year on 6/9 at +1.06. The 90 day average peaked at +15.75 on 2/23 (clearly indicative of La Nina then). This index is a lagging indicator but suggest La Nina is returning.

Pacific Decadal Oscillation
The PDO theoretically turned from a 16 year negative run (Jan 98-Feb 2014) in early 2014 and was positive till Dec 2019, but has been negative ever since, driven by recent La Nina conditions. In May-July 2021 it was the most negative its been in the -1.80 to -2.04 range since Sept 2012 (-2.99) and then fell to -3.16 in Oct 2021 (the lowest since July 1933) then settled at -2.72 in Nov and Dec 2021. Looking at the long term record, it seems likely we are still in the Cool Phase of the PDO (La Nina 'like') with no signs of moving to the positive/warm phase (El Nino 'like').

See imagery in the ENSO Powertool 

Powerlines Jeff Clark Inside Mavericks

Local Interest
Stormsurf Video Surf Forecast for this week. See it Here
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NBC News - Climate Change and Surfing:

Mavericks & Stormsurf on HBO Sports with Bryant Gumbel

Pieces Featuring Stormsurf:

Time Zone Converter By popular demand we've built and easy to use time convert that transposes GMT time to whatever time zone you are located. It's ion left hand column on every page on the site near the link to the swell calculator.

Surf Height-Swell Height Correlation Table


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