Typhoon Haiyan observation on Homonhon Island

[supercane4867]

My friend just claims that one of his relatives from Philippines provided him the observation which records a SLP of 878.5hPa before instrument failure when Haiyan was passing over Homonhon

The exact source is unknown as of now but the time and dew point values seems somewhat reasonable.
Can anyone help me confirm does the station NOTHER PAJSA really exist or have any possible clue about this?

[terstorm1012]

good find, if true. Time for some detecitve work!

[Alyono]

1 min winds would be a lot higher due to the very fast motion of Haiyan. Probably were not under the highest winds for a full 10 mins

[Hurricaneman]

Pressure I'm guessing because of equipment failure would have been probably somewhere between what was observed in these obs and 870 as I'm leaning towards 873mb which has to be some kind of a record for lowest landfall pressure

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[euro6208]

Great find!

I'm thinking landfall intensity was somewhere between 875 to 865 mb and winds 180 to 185 knots but if you were to factor in the fast motion of haiyan, winds were likely higher maybe 190 knots!


The posts in this forum are NOT official forecast and should not be used as such. They are just the opinion of the poster and may or may not be backed by sound meteorological data. They are NOT endorsed by any professional institution or storm2k.org. For official information, please refer to the NWS products.

[xtyphooncyclonex]

Landfall pressure SHOULD be above 875 mb. Don't forget low latitude and fast movement. There also was a strong STR to the North of Haiyan which increased its pressure. Winds of 160 kts [10 min] or 180 kts [1 min] would be more reasonable for a storm like that. Typhoon Haiyan is the strongest Land-falling storm on record.

[xtyphooncyclonex]

OFF TOPIC: Video from Palo, Leyte, where the eyewall directly passed through.
https://www.youtube.com/watch?v=4dCt89w ... e=youtu.be

[euro6208]

It will be an interesting read on haiyan and the season when the 2013 annual TC report comes out soon!

[CrazyC83]

If it was 879mb with 30 m/s (about 60 kt) winds that supports a pressure of 873mb at that time. I agree they likely missed the eyewall data as it likely was stronger at 1-min more than usual...I think the peak intensity was 185 kt based partially on that, just before first landfall. At first landfall, I am thinking 180 kt...at Tacloban landfall, 170 kt. If only we had Recon in Haiyan...

[HurricaneBill]

In the post-recon era (1987-present), the lowest pressure observation in a typhoon was 912mb on the Japanese island of Miyako-jima during the eyewall of Super Typhoon Maemi in 2003.

Flo (1990), Jangmi (2008), and Megi (2010) had lower measured pressures, but those were during recon flights.

[CrazyC83]

If that 879 is accurate, I think that would be at least near, if not, a world record for a land observation? Has there ever been one anywhere lower than the 892 in the Labor Day Hurricane?

[euro6208]

If that 879 is accurate, I think that would be at least near, if not, a world record for a land observation? Has there ever been one anywhere lower than the 892 in the Labor Day Hurricane?

Well if recon never stopped in 87, there would be many of them...just saying...

[xtyphooncyclonex]

For you to be guided and for those who do not know, Homonhon Island is an island South of Guiuan, Eastern Samar, and East of Dulag, Leyte. It was directly hit by the eyewall.

[xtyphooncyclonex]

879 hPa overland is very impressive for a cyclone. Not only the strongest landfalling storm or lowest pressure for a storm overland, this may be the lowest air pressure on land ever recorded!

[yulou]

"Norther" and "no found" look like typos. I doubt on the reliability of those data.

[supercane4867]

"Norther" and "no found" look like typos. I doubt on the reliability of those data.

I agree, it remains very unofficial and questionable until further confirmation.

[yulou]

It's confirmed that the data were made up.

[euro6208]

It's confirmed that the data were made up.

Where?

[xtyphooncyclonex]

Could clearly see that the data is made up. Numerous typos noticed by yulou and pressure observation is Too Low. Pressure should have been higher given the presence of a strong STR steering the system south and that the storm moved very fast and its size is not as large as typhoons below the 876 mb range. To be realistic it should be between 880-885 mob.