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EPAC Tropical Action 2012


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BULLETIN

HURRICANE CARLOTTA INTERMEDIATE ADVISORY NUMBER 8A

NWS NATIONAL HURRICANE CENTER MIAMI FL EP032012

500 PM PDT FRI JUN 15 2012

...EYE OF CARLOTTA JUST OFF THE COAST OF MEXICO VERY NEAR PUERTO

ANGEL...

SUMMARY OF 500 PM PDT...0000 UTC...INFORMATION

----------------------------------------------

LOCATION...15.5N 96.6W

ABOUT 10 MI...20 KM SSW OF PUERTO ANGEL MEXICO

ABOUT 225 MI...365 KM ESE OF ACAPULCO MEXICO

MAXIMUM SUSTAINED WINDS...105 MPH...165 KM/H

PRESENT MOVEMENT...NW OR 325 DEGREES AT 12 MPH...19 KM/H

MINIMUM CENTRAL PRESSURE...976 MB...28.82 INCHES

post-32-0-88007000-1339804451_thumb.jpg

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Wow-- I'm a little surprised it's only 90 kt. Still a really nice cyclone. Puerto Angel must be getting raked right now.

P.S. Is the radar down? The current image is 2201Z.

Looks like stations and radar are down, and airport is closed...probably no more data from land.

Hard left turn on satellite, it looks like it will avoid landfall for a few more hours.

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Carlotta reminds me a bit of Karl 2010 in the NATL.

Like Carlotta, Karl really exploded as it approached the coast, and for a little while, it looked like a really intense, perfectly-formed core was going to make landfall. But as Karl got close, those darn mountains disrupted the circulation and it lost some of its shape prior to landfall.

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Carlotta reminds me a bit of Karl 2010 in the NATL.

Like Carlotta, Karl really exploded as it approached the coast, and for a little while, it looked like a really intense, perfectly-formed core was going to make landfall. But as Karl got close, those darn mountains disrupted the circulation and it lost some of its shape prior to landfall.

Yep, mountains are killers... that's probably why most of the intensifying while landfalling cyclones in MX are in the Yucatan and Tamaulipas.

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Puerto Ángel, Oaxaca (Google map) reports easterly wind at 57 knots (gust to 86 knots) with pressure of 984.6 mb and intense rain (1.16 inch in 10 min) at 23:40 UTC.

Josh, you ought to be there. Heck, I think I should go one of these days!

Nice reading from Puerto Angel. Is it official?

As to whether this would have been a good chase subject... Well... It looked incredibly hawt before landfall; that radar presentation was to die for. But it actually made landfall as a Cat 1-- so in the end, I don't feel I missed some historic event. I mean, it would have been cool to have been in Puerto Escondido-- which apparently got the eye-- but I'm cool with having tracked this from home.

P.S. When I click that link, I get somewhere in the Netherlands! :lol:

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Let's try that again. The remaining data from Puerto Ángel, Oaxaca, finally arrived here:

http://smn.cna.gob.mx/emas/

http://smn.cna.gob.mx/emas/txt/OX01_10M.TXT

The Google map should have gone to:

https://maps.google.com/maps?q=96%C2%B029'50%22W+15%C2%B040'16%22N&hl=en&ie=UTF8&ll=15.671098,-96.497211&spn=0.035701,0.066047&sll=15.900584,-97.198792&sspn=2.282112,4.22699&t=p&z=15

but that apparently doesn't link correctly in our forum software.

At 00:30 UTC, wind was southeasterly 74 knots, gust to 101 knots. Hurricane conditions lasted a half-hour (two hours in gusts) and tropical storm conditions 2 hours and 40 minutes (4 hours and 10 minutes in gusts).

The wind at Pluma Hidalgo, Oaxaca, at 1372 m of altitude and north-northeast of Puerto Ángel, peaked at 49 knots with gust to 72 knots.

https://maps.google.com/maps?q=96%C2%B025'00%22W++15%C2%B055'50%22N&hl=en&ie=UTF8&sll=16.171154,-96.486053&sspn=1.13956,2.113495&t=p&z=15

At Huatulco, Oaxaca, east of Puerto Ángel, wind reached 33 knots with gust to 48 knots

https://maps.google.com/maps?q=96%C2%B008'02%22W+++15%C2%B048'53%22N&hl=en&ie=UTF8&ll=15.814717,-96.133804&spn=0.035675,0.066047&sll=16.349132,-98.052979&sspn=0.569271,1.056747&t=p&z=15

Salina Cruz, Oaxaca, reported 22 knots with a gust of 37 knots, and that station lies very close to the harbor.

San José del Peñasco (in the mountains above Puerto Ángel) experienced a brief gust to 41 knots, albeit with a sustained wind of just 12 knots.

Those winds occurred during or within an hour after daylight.

Farther up the coast, in hours of darkness, winds are...well, less impressive, mostly.

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Let's try that again. The remaining data from Puerto Ángel, Oaxaca, finally arrived here:

http://smn.cna.gob.mx/emas/

http://smn.cna.gob.m...xt/OX01_10M.TXT

The Google map should have gone to:

https://maps.google.....22699&t=p&z=15

but that apparently doesn't link correctly in our forum software.

At 00:30 UTC, wind was southeasterly 74 knots, gust to 101 knots. Hurricane conditions lasted a half-hour (two hours in gusts) and tropical storm conditions 2 hours and 40 minutes (4 hours and 10 minutes in gusts).

Hey, how's it going? I was trying to review the Puerto Angel data, but I can't find it. The text link is apparently dynamic, and only shows the last 24 hours of data. Do you have it saved anywhere, or do you know where else to find it?

Jorge-- do you know?

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http://smn.cna.gob.m...xt/OX01_60M.TXT

TD conditions last few hours today.

Thanks, Jorge! A few questions:

1. I assume that VELS = sustained and VELR = gust-- correct?

2. For the sustained, what's the averaging period-- 10 min or 1 min?

3. What's the unit of measurement-- km/hr? If so, the max sustained wind in this record is 61 kt (113 km/hr)-- below hurricane force.

4. They take readings every 10 min, but these readings are hourly. Do you have access to the 10-min readings? They might shed more light.

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Thanks, Jorge! A few questions:

1. I assume that VELS = sustained and VELR = gust-- correct?

2. For the sustained, what's the averaging period-- 10 min or 1 min?

3. What's the unit of measurement-- km/hr? If so, the max sustained wind in this record is 61 kt (113 km/hr)-- below hurricane force.

4. They take readings every 10 min, but these readings are hourly. Do you have access to the 10-min readings? They might shed more light.

1. Yep

2. Not sure

3. Yep...I think I remember the 10-min readings had 74G101

4. Nope

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I texted that reading to you-- but did you see it somewhere independently?

I saw it in the smn website that day after snowmanwx posted about it... I verified it in the link he gave (10 min obs)

BTW, I didn't receive any texts from you.

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