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EPAC Tropical Action 2012


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It's hard to tell given the lack of soundings over the Pacific, but Daniel certainly has the look of a cyclone that is experiencing mid-level shear. Outflow is still restricted to the north and microwave imagery shows the vortex is still tilted slightly to the southwest, despite the 850-200mb shear being in the single digits.

Looks like the vortex tilt is mainly gone, with a nice low-level eye getting organized. I still think a brief period of RI is still possible in the next 12-18 hours before it moves over cooler SSTs

294734k.jpg

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Looks like the vortex tilt is mainly gone, with a nice low-level eye getting organized. I still think a brief period of RI is still possible in the next 12-18 hours before it moves over cooler SSTs

I agree, RI is a good possibility today. Probably not to Cat 3 but could see Cat 2 for sure by tonight.

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The new cherry is going to be a cyclone, too-- and another fish as well.

We're in classic EPAC mid-season mode. Everything's going to move W and fish for the next couple of months-- then around mid-September or October, we'll start to see possible threats to Mexico again as the Pacific troughs start to dig down.

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TD 5-E has formed and it looks like it could be another substancial tropical cyclone as it moves to the WNW nowhere near land.

Daniel on the other hand is rapidly intensifying at the moment. Its got another 6-12 hours over sufficient SSTs and its possible Daniel might make a run at major hurricane intensity before it reaches its peak. If Daniel can move further south than expected in the next 24 hours, it might be able to bisect the 25-26 degree isotherm, and could be a potential candidate for becoming an Annular hurricane given the very favorable upper level pattern and low sea surface temperatures. Already its starting to shed its outer feeder band as it traverses cooler SSTs and the eye is currently clearing out.

There is a decent chance that Daniel might last significantly longer than the current NHC forecast.

zwak5w.jpg

16a8faf.png

Ironically... Daniel (2012) may be following in the footsteps of its two predecessors. Both Daniel 2006 and Daniel 2000 were Annular Hurricanes that crossed over into the Central Pacific

Daniel (2000)

track.gif

25ez18k.png

Daniel (2006)

track.gif

2qupzdd.png

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TD 5-E has formed and it looks like it could be another substancial tropical cyclone as it moves to the WNW nowhere near land.

Daniel on the other hand is rapidly intensifying at the moment. Its got another 6-12 hours over sufficient SSTs and its possible Daniel might make a run at major hurricane intensity before it reaches its peak. If Daniel can move further south than expected in the next 24 hours, it might be able to bisect the 25-26 degree isotherm, and could be a potential candidate for becoming an Annular hurricane given the very favorable upper level pattern and low sea surface temperatures. Already its starting to shed its outer feeder band as it traverses cooler SSTs and the eye is currently clearing out.

There is a decent chance that Daniel might last significantly longer than the current NHC forecast.

zwak5w.jpg

16a8faf.png

Ironically... Daniel (2012) may be following in the footsteps of its two predecessors. Both Daniel 2006 and Daniel 2000 were Annular Hurricanes that crossed over into the Central Pacific

Daniel (2000)

track.gif

25ez18k.png

Daniel (2006)

track.gif

2qupzdd.png

Daniels have been puurrrtttyyy

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Daniel after becoming a major hurricane briefly this morning is still hanging on to Cat 2 intensity and is proving to more resilient to weakling despite being completely over sub 26 degree waters... well see how long it can keep that up.

Emilia looks like its about to start an RI episode of its own. The outflow is rapidly expanding to the west after previously being slightly limited by the extensive outflow of Daniel, and is fully embedded in SSTs above 29C. I'm thinking we are going to see explosive intensification over the next 24 hours as the inner core is getting established. In my opinion, I think 105 knots is probably on the low side.

257qdq9.jpg

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Semi-OT. I hate the California Current. How much more active these threads could be if we could be watching long trackers headed for Hilo or Honolulu...

2012187cpsst.png

msl_uv850_z500!Wind%20850%20and%20mslp!168!North%20America!pop!od!oper!public_plots!2012070700!!chart.gif

It just goes to show what a rarity Iniki was back in September of 1992.

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Could we please get some Congressional funding for some freaking polar orbiters. It's ridiculous we're missing microwave coverage of this event.

It could be worse, the TMI is almost 15 years old...

At least there will be a new AMSR that is currently in orbit and being calibrated.

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At 5am, Emilia was up to 120 kts, probably near peak intensity, and Daniel is down to 60 kts. We also have a mandarin south of Acapulco. The mandarin, Invest 98E, might develop, but it doesn't appear to be as likely to develop into a major the way Daniel and Emilia did. The northwestward track will take it over cooler water sooner.

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