Great earthquake rocks Chile; NYC gets 4th greatest snow ever; Xynthia batters Europe

By: Dr. Jeff Masters , 5:26 PM GMT on February 27, 2010

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A great earthquake with magnitude 8.8 rocked the coast of Chile at 6:34 GMT this morning, generating a potentially dangerous tsunami that is racing across the Pacific Ocean. The great quake is the 7th most powerful tremor in world history (Figure 1). Preliminary tsunami wave heights for the California coast near Santa Barbara are 2 - 2.5 feet. The wave is expected to arrive between 12:15 - 12:35 pm PST. The tsunami is expected to arrive in Hawaii between 11:05 - 11:42am HST, with a wave 8.2 feet high expected in Hilo, on the Big Island. A tsunami from the 9.5 Magnitude 1960 earthquake in Chile killed 61 people in Hilo. Today's quake was so strong, that it triggered a seiche in Lake Pontchartrain, Louisiana, over 4,500 miles (7,000 km) away. The lake sloshed back and forth, creating a wave 0.4 - 0.51 feet on either side of the lake.


Figure 1. Wikipedia's list of strongest earthquakes of all-time.

Preliminary tsunami amplitude forecasts:

La Jolla, CA 2.3 ft
Los Angeles, CA 2.0 ft
Malibu, CA 2.6 ft
Pt. San Luis, CA 2.3 ft
Half Moon Bay, CA 2.6 ft
Crescent City, CA 1.7 ft
Morro Bay, CA 2.2 ft
Santa Monica, CA 3.3 ft
San Francisco, CA 0.7 ft
Pismo Beach, CA 4.6 ft

Hilo, HI 8.2 feet 11:5am HST
Honolulu, HI 1.6 ft 11:37am HST
Kahului, HI 7.2 ft 11:26am HST
Nawiliwili, HI 3.0 ft 11:42am HST
Haleiwa 1.6 ft
Kawaihae 2.0 ft

Port Orford, OR 0.7 ft

Moclip, WA 1.3 ft

Seward, AK 1.3 ft
Stika, AK 1.3 ft
Kodiak, AK 2.3 ft

Tofino, British Columbia 1.7 ft

Today's great quake occurred at the boundary between the Nazca and South American plates about 325 km southwest of the capital Santiago (population 5.3 million). The depth was estimated at 35 km. At least four aftershocks of magnitude 6 or higher have occurred, the largest being a 6.9 aftershock. Fortunately, the area close to the epicenter is relatively sparsely populated, but there may be heavy damage in Concepci├│n (est. pop. 300,000) and Chillan (est. pop. 170,000), which lie 115 km and 100 km to the south of the epicenter, respectively.


Figure 2. NOAA's preliminary forecast of tsunami wave energy for today's earthquake. Image credit: NOAA Tsunami Warning Center.

New York City slammed with its 4th largest snowstorm on record
The snow from the fourth extreme snowstorm to wallop the Northeast U.S. this winter dumped a remarkable 20.9" of snow on New York City's Central Park yesterday and Thursday. This is the 4th largest snowstorm for the city in recorded history. According to the National Weather Service, the top ten snowstorms on record for New York City's Central Park are:

26.9" Feb 11-12, 2006
26.4" Dec 26-27, 1947
21.0" Mar 12-14, 1888
20.9" Feb 25-26, 2010
20.2" Jan 7-8, 1996
19.8" Feb 16-17, 2003
18.1" Mar 7-8, 1941
17.7" Feb 5-7, 1978
17.6" Feb 11-12, 1983
17.5" Feb 4-7, 1920

The storm also helped New York City set a new all-time snowfall record for the most snow ever recorded in a month--36.9". The old record was 30.5", set in March 1896. However, the old Lower Manhattan WB Station recorded 37.9" in February 1894. Yesterday's snowstorm puts New York City's snow for the 2009 - 2010 season at 51.4", making it the 11th snowiest winter since 1869. Chris Burt, author of Extreme Weather, lists the city's all-time seasonal snowfall record at 81.5", set in the winter of 1867 - 1868. This measurement came before official records began in Central Park, and were done be the NY Park Commissioners (see "Annual Report NY Park Commissioners", 1868, by John B. Marie). The second snowiest winter in NYC occurred during the winter of 1995 - 1996, when 75.6" fell.

Destructive Winter Storm Xynthia battering Portugal and Spain
A powerful 969 mb low pressure system named "Xynthia" is rapidly intensifying of the coast of Spain, and stands poised to deliver a devastating blow to Portugal, Spain, and France today and tomorrow as it powers through Europe. Sustained winds of 60 mph (96 km/hr) were reported today at a Personal Weather Station in Costa del Morte, Spain. The pressure fell to 969 mb as Xynthia passed overhead. For comparison, Winter Storm Klaus had a minimum pressure of 967 mb. Klaus, which hit northern Spain and southwest France January 23 - 25, was Earth's most costly natural disaster of 2009, causing $5.1 billion in damage and killing 26. Models predict that Xynthia will continue to intensify today, reaching 962 mb as it moves into the west coast of France Sunday morning. Sustained winds of 50 - 65 mph (80 - 105 km/hr) with hurricane-force gusts up to 100 mph (160 km/hr) are possible along the north coast of Spain tonight and the west coast of France on Sunday as Xynthia barrels through. The storm is also bringing an exceptionally moist plume of tropical moisture ashore, as seen in precipitable water imagery from NOAA (Figure 4). This moisture is likely to cause moderate to severe flooding in portions of Europe over the weekend.


Figure 3. Visible satellite image at 12 GMT of Xynthia.


Figure 4. Satellite measurements show a region of extremely high atmospheric moisture is associated with Winter Storm Xynthia. This moisture will surge over Portugal and Spain today, potentially creating serious flooding. Image credit: Sheldon Kusselson, NOAA/NESDIS.

Links to follow:
Wundermap for Northwest Spain
Spanish radar
Meteo-France
Portugese radar

Jeff Masters

Central Park 26Feb10 (MickyDee)
the BIG one Taken in Manhattan
Central Park 26Feb10
Tree 1, House 0 (Backbaybob)
This cottage was no match for 65 mph wind and an old pine tree.
Tree 1, House 0

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Quoting aspectre:
6 Levi32 "This [8.8] earthquake is hundreds of times weaker than the magnitude 9.5 in 1960..."

About eleven times weaker. The Richter scale is logarithmic, with every increase of 2 being a thousand (ten to the third power) times stronger.
InvLog [(9.5 minus 8.8) times (3 divided by 2)]
InvLog [0.7 times 1.5]
InvLog 1.05 equals 11.22


Well I got that from a guy at the Pacific Tsunami Warning Center so whatever.
Member Since: November 24, 2005 Posts: 628 Comments: 26452
Quoting atmoaggie:

30 meters in deep water...WTH? Cannot be real.


If accurate, that not good at all :(
Member Since: June 12, 2005 Posts: 6 Comments: 8183
We wait and Hope now.

Hawaii has practiced the Tsunami scenario in many a Drill.

May the tempest waters pass without Harm to anyone.

Good Luck to those in Harms way.



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Its about 500x stronger than the Haiti quake though.
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CIVIL DEFENSE IN THE STATE OF HAWAII

TSUNAMI WARNING
TIME TILL IMPACT 16 MINUTES
Member Since: July 15, 2006 Posts: 163 Comments: 52096
6 Levi32 "This [8.8] earthquake is hundreds of times weaker than the magnitude 9.5 in 1960..."

About eleven times weaker. The Richter scale is logarithmic, with every increase of 2 being a thousand (ten to the third power) times stronger.
InvLog [(9.5 minus 8.8) times (3 divided by 2)]
InvLog [0.7 times 1.5]
InvLog 1.05 equals 11.22
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Anyone else think it's kind of crazy that having such an advanced warning network deployed in the Pacific and our connected world actually allows us to watch what could be a disaster in real time? I really hope it's not, but I think it's amazing (if not chilling) we can watch, say, buoy reports as this comes in.

Here's hoping it's a "bust" and everything winds up being okay.
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Quoting atmoaggie:

30 meters in deep water...WTH? Cannot be real.


Looks like it might be bigger than believed if that is correct.......geesh.
Member Since: September 2, 2007 Posts: 177 Comments: 20430
Quoting TampaSpin:
A Drop just occured........here it comes...


30 meters in deep water...WTH? Cannot be real.
Member Since: August 16, 2007 Posts: 6 Comments: 12461
Buoy near Hawaii 140 miles SE of Honolulu just got triggered. It's very close:

Member Since: November 24, 2005 Posts: 628 Comments: 26452
I know everyone is talking about the earthquake and tsunami, but the SE states are coming out with their new forecast discussions, and so far Peachtree City is going to issue Winter Storm Watches tomorrow depending on the 00Z and 12Z model runs. I'm assuming more NWS offices will issue similar statements across Alabama, Mississippi, South Carolina, etc.
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lurking, a little nervous...

-holds hands with loved ones tightly-
Member Since: August 13, 2005 Posts: 163 Comments: 25474
Wave arrival estimates:
11:05 a.m. Hilo, 11:20 a.m. Maui, 11:35 a.m. Oahu, 11:50 a.m. Kauai, 9-12 ft. surge estimates.

All state parks closed. Hilo airport closed at 6 a.m. All vessels are asked to evacuate state harbors. City bus service is running with additional busses available. USPS delivery WILL commence for areas outside of emergency zones. All ILH events postponed. OIA events will not proceed. Kamehameha Ho'olaule'a will proceed. Unconferenz 2010 postponed. HMSA closed, emergency only.

Closed: Piikoi & Ala Moana Blvd. is shut down, UH Manoa, Hilo, West Oahu, KCC, HCC, LCC, Academy of The Pacific, Hawaii Baptist Academy, Ala Moana Center, Ward Centers, Windward Mall, Aloha Tower Market Place, Royal Hawaiian Center, Polynesian Cultural Center, Wet N Wild Hawaii, Costco Hawaii Kai & Iwilei, Hawaii Photo Rental, CPB and ASB banks closed, ATMs only.
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A Drop just occured........here it comes...

Member Since: September 2, 2007 Posts: 177 Comments: 20430
Quoting charlottefl:
Think 7 ft is up close to upto the ceiling on any one story building. I would call that pretty serious.
Especially when you consider it takes... what does the NWS tell us... a foot of fast moving water can sweep you off your feet?
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CIVIL DEFENSE IN THE STATE OF HAWAII

TSUNAMI WARNING
TIME TILL IMPACT 24 MINUTES
Member Since: July 15, 2006 Posts: 163 Comments: 52096
For Hawaii residents

Disaster Preparation Kit
Food - 5-7 days worth per person. Water- 5-7 days worth per person, drink, sanitation. Medication, toiletries, important papers. Batteries, flash lights, cell phone chargers, first aid kits, toilet paper, rice, essentials.

Emergency phone numbers ┬╗
State Civil Defense - (808) 733-430 | American Red Cross - (808) 734-2101 | Emergency - 911
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Does anyone know why the Central Pacific Hurricane Center hasn't updated with their best tracks yet?
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Dependent upon coastline and ocean bottom depth/type, 1 cm of ocean Tsunami wave can equal 1 meter at the shore.

The Tsunami can last for many minutes, again dependent upon its size and composition.

You could think of it in a similar way to the dome of water at the center of a hurricane that is created by low pressure, and the storm surge associated with it when the hurricane impacts a land mass.

A Tsunami is of course much more widespread, but the behavior of the water at the coastline is similar.
Member Since: June 12, 2005 Posts: 6 Comments: 8183
Think 7 ft is up close to upto the ceiling on any one story building. I would call that pretty serious.
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195. IKE
Quoting PcolaDan:


Sounds kind of familiar. "Well I went through hurricane (****) and it wasn't bad, why should I leave for this one?"


That's exactly what I was thinking. This is going to be interesting to watch. Hopefully, with no damage or injuries or death.
Member Since: June 9, 2005 Posts: 23 Comments: 37858
Quoting AwakeInMaryland:


That's what way better minds than mine explained to me!
Keeping fingers crossed the Navy got it right in Hawaii -- they usually do!
Just saw live feed from Hilo and that Oceanographer there said there expecting 6 foot waves. He expained the wave where i could understand it better. He said its not a breaking wave its an all of a sudden rising wall of water! That is scary!! He said even 2 to 3 feet can swipe someone off thier feet and move land objects around like they are nothing!
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Quoting aerojad:
KHON is being broadcast right now on CNN.com with their tsunami live coverage. Half an hour or so now...


thanks!

Keeper, appreciate your time updates.
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All eyes focused to the Seast in Hawaii as the Time to evacuate from the Warned areas is ticking down to impact.

The Cams are working with some good reporting to go along with here.


Wave arrival estimates:
11:05 a.m. Hilo, 11:20 a.m. Maui, 11:35 a.m. Oahu, 11:50 a.m. Kauai, 9-12 ft. surge estimates.



All state parks closed. Hilo airport closed at 6 a.m. All vessels are asked to evacuate state harbors. City bus service is running with additional busses available. USPS delivery WILL commence for areas outside of emergency zones. All ILH events postponed. OIA events will not proceed. Kamehameha Ho'olaule'a will proceed. Unconferenz 2010 postponed. HMSA closed, emergency only.

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BULLETIN
TSUNAMI MESSAGE NUMBER 17
NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI
1025 AM HST SAT FEB 27 2010

TO - CIVIL DEFENSE IN THE STATE OF HAWAII

SUBJECT - TSUNAMI WARNING SUPPLEMENT

A TSUNAMI WARNING CONTINUES IN EFFECT FOR THE STATE OF HAWAII.

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS

ORIGIN TIME - 0834 PM HST 26 FEB 2010
COORDINATES - 36.1 SOUTH 72.6 WEST
LOCATION - NEAR COAST OF CENTRAL CHILE
MAGNITUDE - 8.8 MOMENT

MEASUREMENTS OR REPORTS OF RECENT TSUNAMI WAVE ACTIVITY

GAUGE LOCATION LAT LON TIME AMPL PER
------------------- ----- ------ ----- --------------- -----
LOTTIN PT NZ 37.6S 178.2E 1934Z 0.15M / 0.5FT 10MIN
RAROTONGA CK 21.2S 159.8W 1918Z 0.32M / 1.0FT 06MIN
CABO SAN LUCAS MX 22.9N 109.9W 1833Z 0.36M / 1.2FT 12MIN
DART TONGA 51426 23.0S 168.1W 1844Z 0.04M / 0.1FT 30MIN
HIVA OA MARQUESAS 9.8S 139.0W 1741Z 1.79M / 5.9FT 12MIN
PAPEETE TAHITI 17.5S 149.6W 1810Z 0.16M / 0.5FT 10MIN
NUKU HIVA MARQUESAS 8.9S 140.1W 1745Z 0.95M / 3.1FT 04MIN
MANZANILLO MX 19.1N 104.3W 1705Z 0.32M / 1.0FT 24MIN
DART MANZANILLO 434 16.0N 107.0W 1611Z 0.07M / 0.2FT 24MIN
ACAPULCO MX 16.8N 99.9W 1549Z 0.16M / 0.5FT 24MIN
RIKITEA PF 23.1S 134.9W 1559Z 0.15M / 0.5FT 22MIN

LAT - LATITUDE (N-NORTH, S-SOUTH)
LON - LONGITUDE (E-EAST, W-WEST)
TIME - TIME OF THE MEASUREMENT (Z IS UTC IS GREENWICH TIME)
AMPL - TSUNAMI AMPLITUDE MEASURED RELATIVE TO NORMAL SEA LEVEL.
IT IS ...NOT... CREST-TO-TROUGH WAVE HEIGHT.
VALUES ARE GIVEN IN BOTH METERS(M) AND FEET(FT).
PER - PERIOD OF TIME IN MINUTES(MIN) FROM ONE WAVE TO THE NEXT.

CURRENT RANGE OF FORECAST INITIAL WAVE ARRIVAL TIME AND MAXIMUM
WAVE AMPLITUDES MEASURED FROM CREST TO TROUGH.

HILO 1105AM HST 2.1-2.5 METERS
HONOLULU 1137AM HST 0.5-0.7 METERS
KAHULUI 1126AM HST 1.1-3.0 METERS
NAWILIWILI 1142AM HST 0.9-1.4 METERS
HALEIWA 0.5-1.1 METERS
KAWAIHAE 0.6-1.6 METERS

THESE ARE ONLY ESTIMATES...ACTUAL VALUES MAY DIFFER.

EVALUATION

A TSUNAMI HAS BEEN GENERATED THAT COULD CAUSE DAMAGE ALONG
COASTLINES OF ALL ISLANDS IN THE STATE OF HAWAII. URGENT ACTION
SHOULD BE TAKEN TO PROTECT LIVES AND PROPERTY.

A TSUNAMI IS A SERIES OF LONG OCEAN WAVES. EACH INDIVIDUAL WAVE
CREST CAN LAST 5 TO 15 MINUTES OR MORE AND EXTENSIVELY FLOOD
COASTAL AREAS. THE DANGER CAN CONTINUE FOR MANY HOURS AFTER THE
INITIAL WAVE AS SUBSEQUENT WAVES ARRIVE. TSUNAMI WAVE HEIGHTS
CANNOT BE PREDICTED AND THE FIRST WAVE MAY NOT BE THE LARGEST.
TSUNAMI WAVES EFFICIENTLY WRAP AROUND ISLANDS. ALL SHORES ARE AT
RISK NO MATTER WHICH DIRECTION THEY FACE. THE TROUGH OF A TSUNAMI
WAVE MAY TEMPORARILY EXPOSE THE SEAFLOOR BUT THE AREA WILL
QUICKLY FLOOD AGAIN. EXTREMELY STRONG AND UNUSUAL NEARSHORE
CURRENTS CAN ACCOMPANY A TSUNAMI. DEBRIS PICKED UP AND CARRIED
BY A TSUNAMI AMPLIFIES ITS DESTRUCTIVE POWER. SIMULTANEOUS HIGH
TIDES OR HIGH SURF CAN SIGNIFICANTLY INCREASE THE TSUNAMI HAZARD.

THE ESTIMATED ARRIVAL TIME IN HAWAII OF THE FIRST TSUNAMI WAVE IS

1105 AM HST SAT 27 FEB 2010

MESSAGES WILL BE ISSUED HOURLY OR SOONER AS CONDITIONS WARRANT.

Member Since: July 15, 2006 Posts: 163 Comments: 52096
Bouy to watch now....

Station 51407 (LLNR 28006.5) - 140 NM Southeast of Honolulu, HI

Member Since: September 2, 2007 Posts: 177 Comments: 20430

Quoting seflagamma:
so right around 4pm EST???

If I am reading correctly, the wave sizes could range from 2 ft to 9 ft?

so, if this is the case, things "should" be ok but cannot take chances...

I may leave my desk and go see if CNN has this covered. the TV is on in the break room here at work today...it is set on CNN so surely they have someone there recording this live.

thanks again for everyone's information.


Depending on local terrain yes, anywhere from 1 foot to 8 or 9 feet. That could still cause a lot of damage, this is no picnic.
Member Since: November 24, 2005 Posts: 628 Comments: 26452
CIVIL DEFENSE IN THE STATE OF HAWAII

TSUNAMI WARNING
TIME TILL IMPACT 29 MINUTES
Member Since: July 15, 2006 Posts: 163 Comments: 52096
KHON is being broadcast right now on CNN.com with their tsunami live coverage. Half an hour or so now...
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so right around 4pm EST???

If I am reading correctly, the wave sizes could range from 2 ft to 9 ft?

so, if this is the case, things "should" be ok but cannot take chances...

I may leave my desk and go see if CNN has this covered.
the TV is on in the break room here at work today...
it is set on CNN so surely they have someone there recording this live.

thanks again for everyone's information.
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TSUNAMI BULLETIN NUMBER 014
PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS
ISSUED AT 1934Z 27 FEB 2010

THIS BULLETIN APPLIES TO AREAS WITHIN AND BORDERING THE PACIFIC
OCEAN AND ADJACENT SEAS...EXCEPT ALASKA...BRITISH COLUMBIA...
WASHINGTON...OREGON AND CALIFORNIA.

... A WIDESPREAD TSUNAMI WARNING IS IN EFFECT ...

A TSUNAMI WARNING IS IN EFFECT FOR

CHILE / PERU / ECUADOR / COLOMBIA / ANTARCTICA / PANAMA /
COSTA RICA / NICARAGUA / PITCAIRN / HONDURAS / EL SALVADOR /
GUATEMALA / FR. POLYNESIA / MEXICO / COOK ISLANDS / KIRIBATI /
KERMADEC IS / NIUE / NEW ZEALAND / TONGA / AMERICAN SAMOA /
SAMOA / JARVIS IS. / WALLIS-FUTUNA / TOKELAU / FIJI /
AUSTRALIA / HAWAII / PALMYRA IS. / TUVALU / VANUATU /
HOWLAND-BAKER / NEW CALEDONIA / JOHNSTON IS. / SOLOMON IS. /
NAURU / MARSHALL IS. / MIDWAY IS. / KOSRAE / PAPUA NEW GUINEA /
POHNPEI / WAKE IS. / CHUUK / RUSSIA / MARCUS IS. / INDONESIA /
N. MARIANAS / GUAM / YAP / BELAU / JAPAN / PHILIPPINES /
CHINESE TAIPEI


THIS BULLETIN IS ISSUED AS ADVICE TO GOVERNMENT AGENCIES. ONLY
NATIONAL AND LOCAL GOVERNMENT AGENCIES HAVE THE AUTHORITY TO MAKE
DECISIONS REGARDING THE OFFICIAL STATE OF ALERT IN THEIR AREA AND
ANY ACTIONS TO BE TAKEN IN RESPONSE.

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS

ORIGIN TIME - 0634Z 27 FEB 2010
COORDINATES - 36.1 SOUTH 72.6 WEST
DEPTH - 55 KM
LOCATION - NEAR COAST OF CENTRAL CHILE
MAGNITUDE - 8.8

MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY

GAUGE LOCATION LAT LON TIME AMPL PER
------------------- ----- ------ ----- --------------- -----
CABO SAN LUCAS MX 22.9N 109.9W 1833Z 0.36M / 1.2FT 12MIN
DART TONGA 51426 23.0S 168.1W 1844Z 0.04M / 0.1FT 30MIN
HIVA OA MARQUESAS 9.8S 139.0W 1741Z 1.79M / 5.9FT 12MIN
PAPEETE TAHITI 17.5S 149.6W 1810Z 0.16M / 0.5FT 10MIN
NUKU HIVA MARQUESAS 8.9S 140.1W 1745Z 0.95M / 3.1FT 04MIN
MANZANILLO MX 19.1N 104.3W 1705Z 0.32M / 1.0FT 24MIN
DART MANZANILLO 434 16.0N 107.0W 1611Z 0.07M / 0.2FT 24MIN
ACAPULCO MX 16.8N 99.9W 1549Z 0.16M / 0.5FT 24MIN
RIKITEA PF 23.1S 134.9W 1559Z 0.15M / 0.5FT 22MIN
DART MARQUESAS 5140 8.5S 125.0W 1531Z 0.18M / 0.6FT 18MIN
BALTRA GALAPAGS EC 0.4S 90.3W 1452Z 0.35M / 1.2FT 14MIN
EASTER CL 27.2S 109.5W 1205Z 0.35M / 1.1FT 52MIN
ANCUD CL 41.9S 73.8W 0838Z 0.62M / 2.0FT 84MIN
CALLAO LA-PUNTA PE 12.1S 77.2W 1029Z 0.36M / 1.2FT 30MIN
ARICA CL 18.5S 70.3W 1008Z 0.94M / 3.1FT 42MIN
IQUIQUE CL 20.2S 70.1W 0907Z 0.28M / 0.9FT 68MIN
ANTOFAGASTA CL 23.2S 70.4W 0941Z 0.49M / 1.6FT 52MIN
DART LIMA 32412 18.0S 86.4W 0941Z 0.24M / 0.8FT 36MIN
CALDERA CL 27.1S 70.8W 0843Z 0.45M / 1.5FT 20MIN
TALCAHUANO CL 36.7S 73.4W 0653Z 2.34M / 7.7FT 88MIN
COQUIMBO CL 30.0S 71.3W 0852Z 1.32M / 4.3FT 30MIN
CORRAL CL 39.9S 73.4W 0739Z 0.90M / 2.9FT 16MIN
SAN FELIX CL 26.3S 80.1W 0815Z 0.53M / 1.7FT 08MIN
VALPARAISO CL 33.0S 71.6W 0708Z 1.29M / 4.2FT 20MIN

LAT - LATITUDE (N-NORTH, S-SOUTH)
LON - LONGITUDE (E-EAST, W-WEST)
TIME - TIME OF THE MEASUREMENT (Z IS UTC IS GREENWICH TIME)
AMPL - TSUNAMI AMPLITUDE MEASURED RELATIVE TO NORMAL SEA LEVEL.
IT IS ...NOT... CREST-TO-TROUGH WAVE HEIGHT.
VALUES ARE GIVEN IN BOTH METERS(M) AND FEET(FT).
PER - PERIOD OF TIME IN MINUTES(MIN) FROM ONE WAVE TO THE NEXT.

EVALUATION

SEA LEVEL READINGS CONFIRM THAT A TSUNAMI HAS BEEN GENERATED
WHICH COULD CAUSE WIDESPREAD DAMAGE.
AUTHORITIES SHOULD TAKE
APPROPRIATE ACTION IN RESPONSE TO THIS THREAT. THIS CENTER WILL
CONTINUE TO MONITOR SEA LEVEL DATA TO DETERMINE THE EXTENT AND
SEVERITY OF THE THREAT.

A TSUNAMI IS A SERIES OF WAVES AND THE FIRST WAVE MAY NOT BE THE
LARGEST. TSUNAMI WAVE HEIGHTS CANNOT BE PREDICTED AND CAN VARY
SIGNIFICANTLY ALONG A COAST DUE TO LOCAL EFFECTS. THE TIME FROM
ONE TSUNAMI WAVE TO THE NEXT CAN BE FIVE MINUTES TO AN HOUR, AND
THE THREAT CAN CONTINUE FOR MANY HOURS AS MULTIPLE WAVES ARRIVE.


FOR ALL AREAS - WHEN NO MAJOR WAVES ARE OBSERVED FOR TWO HOURS
AFTER THE ESTIMATED TIME OF ARRIVAL OR DAMAGING WAVES HAVE NOT
OCCURRED FOR AT LEAST TWO HOURS THEN LOCAL AUTHORITIES CAN ASSUME
THE THREAT IS PASSED. DANGER TO BOATS AND COASTAL STRUCTURES CAN
CONTINUE FOR SEVERAL HOURS DUE TO RAPID CURRENTS. AS LOCAL
CONDITIONS CAN CAUSE A WIDE VARIATION IN TSUNAMI WAVE ACTION THE
ALL CLEAR DETERMINATION MUST BE MADE BY LOCAL AUTHORITIES.

BULLETINS WILL BE ISSUED HOURLY OR SOONER IF CONDITIONS WARRANT.
THE TSUNAMI WARNING WILL REMAIN IN EFFECT UNTIL FURTHER NOTICE.

THE WEST COAST/ALASKA TSUNAMI WARNING CENTER WILL ISSUE PRODUCTS
FOR ALASKA...BRITISH COLUMBIA...WASHINGTON...OREGON...CALIFORNIA.
Member Since: November 24, 2005 Posts: 628 Comments: 26452
Wow, was just listening to a live broadcast and the sirens kicked in, meaning 30 minutes. Was kind of eerie and I'm in Florida. GEEZ :)

Feed link

lost all my webcam feeds though
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please watch the live stream:

Link

FINAL SIRENS GOING OFF
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Quoting stormsurge39:
oh okay, didnt see that, thanks! If i understand right, the water comes in and goes back out many times and it can differ on how big the surge is each time until its over?


That's what way better minds than mine explained to me!
Keeping fingers crossed the Navy got it right in Hawaii -- they usually do!
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Quoting IKE:
Hopefully this will not be too bad in Hawaii, but....and I almost hate to bring this up...what if it isn't? What will those do the next time this happens? Not be as pro-active about evacuating?

Then again, maybe the next time is another 50 years.


Sounds kind of familiar. "Well I went through hurricane (****) and it wasn't bad, why should I leave for this one?"
Member Since: Posts: Comments:
CIVIL DEFENSE IN THE STATE OF HAWAII

TSUNAMI WARNING
TIME TILL IMPACT 33 MINUTES
Member Since: July 15, 2006 Posts: 163 Comments: 52096
Can you all imagine not having a warning system in place what could happen today?
Member Since: September 2, 2007 Posts: 177 Comments: 20430
Quoting hydrus:
I Googled it. It was interesting. I dont get depressed unless something bad happens. It is good to know there are other things besides hard drugs to help depression. We just lost one of our dogs. He was part of our family so it was a bummer.


You might wish to also check out Sam-E. I don't know much about it, but some have found it effective. It's pricey but you're worth it, right? I'm so sorry about the loss of your dog; they are a member of the family.

TD, what's the ETA Hawaii?

Any TD... even the bratty one.
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Quoting Tazmanian:
i have this here from cnn that high way 19 in Hawaii has been shut down
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176. IKE
Hopefully this will not be too bad in Hawaii, but....and I almost hate to bring this up...what if it isn't? What will those do the next time this happens? Not be as pro-active about evacuating?

Then again, maybe the next time is another 50 years.
Member Since: June 9, 2005 Posts: 23 Comments: 37858
Quoting AwakeInMaryland:


Umm, I believe the height is right in Dr. Masters' blog, unless I misunderstand you(?)

Levi, Bordo, Dan, Pat... a lot of bloggers...were kind enough to explain why the SURGE is so hard to determine...see previous pages.
oh okay, didnt see that, thanks! If i understand right, the water comes in and goes back out many times and it can differ on how big the surge is each time until its over?
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I don't know which cruise line you're taking, but Royal Caribbean for one has been of enormous help in Haiti (and that's according to GrtLakesQuest Doctor friend who was in Haiti, not just their P.R.)

Maybe your cruise line/airline(?) would waive baggage restrictions for you, if you drop off supplies... I know you participate in some relief efforts.


AIM - going on NCL but not to any areas hit by earthquakes..thanks for your info!
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173. IKE
Quoting spathy:
169 Teddy

Can I assume there was another 20 feet of beach shortly before that picture?


It does look like the water has come up on that picture, from the previous one he had posted that was 2 minutes earlier.
Member Since: June 9, 2005 Posts: 23 Comments: 37858
CIVIL DEFENSE IN THE STATE OF HAWAII

TSUNAMI WARNING
TIME TILL IMPACT 40 MINUTES
Member Since: July 15, 2006 Posts: 163 Comments: 52096
Quoting AwakeInMaryland:


Pretty much wait and see for now... 2012 included... maybe the next time the Jehovah's Witnesses knock I'll ask for their supply catalog. Usually we just scare them away...and I don't just mean the canine ankle-biters...

Hydrus, the other day you asked me what St. John's Wort is, but I was off-blog.

It's an over-the-counter herb, usually in capsules, which is supposed to help with depression "naturally."

However, there is a time and a place for prescription medicine...and I do believe today may quality... :)
I Googled it. It was interesting. I dont get depressed unless something bad happens. It is good to know there are other things besides hard drugs to help depression. We just lost one of our dogs. He was part of our family so it was a bummer.
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This looks to be the Tsunami,
Struck at 12:09 in San Diego.



EDIT: Updated, no longer can see it.
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Just got to the internet. We have been out of power since thursday night in Dover NH after going through 90mph winds. Closest to a hurricane I've ever seen. Our hospital still is on a generator. I pray the people in Chili will get through
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i have this here from cnn that high way 19 in Hawaii has been shut down
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About JeffMasters

Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.