CPAC: Tropical Storm OMEKA

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Hurricanehink
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CPAC: Tropical Storm OMEKA

#1 Postby Hurricanehink » Sat Dec 18, 2010 8:46 am

From CPHC:

A subtropical low located near the international dateline about 340 miles south southwest of Midway atoll is moving toward the south southwest at about 10 mph. A large area of showers and thunderstorms continues to increase in coverage and intensity near the center of this system. Winds of gale force are located far north of the center of this low. There is a low chance, 10 percent, of this system becoming a tropical cyclone during the next 48 hours. For additional information on this low, see the high seas forecast issued for the north Pacific ocean by the National Weather Service forecast office in Honolulu, Hawaii under AWIPS header hsfnp, or WMO header fzpn40 PHFO.

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...
It doesn't have much time in the CPAC since it's moving to the south-southwest, but it's a fun little system before the season ends. Funny how it looks better than what has been in the CPAC all season.
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#2 Postby Chacor » Sat Dec 18, 2010 9:25 am

NRL: 30 knots, 999 hPa.

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Re: CPAC: Invest 98C

#3 Postby HURAKAN » Sat Dec 18, 2010 10:39 am

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typical KONA low
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#4 Postby HURAKAN » Sat Dec 18, 2010 10:44 am

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18/1130 UTC 23.5N 178.8W ST2.5 98C -- Central Pacific
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Re: CPAC: Invest 98C

#5 Postby HURAKAN » Sat Dec 18, 2010 12:50 pm

Image

Image

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#6 Postby HURAKAN » Sat Dec 18, 2010 5:00 pm

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Looks like a tropical cyclone
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#7 Postby HURAKAN » Sat Dec 18, 2010 5:03 pm

18/2030 UTC 22.6N 179.7E T3.0/3.0 98C -- West Pacific

tropical and 45 knots
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#8 Postby HURAKAN » Sat Dec 18, 2010 5:08 pm

Image

beautiful little system
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Re: CPAC: Invest 98C

#9 Postby KatDaddy » Sat Dec 18, 2010 5:15 pm

No doubt looks to be a small TC. Pretty amazing for this time of year in the CPAC.
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#10 Postby HURAKAN » Sat Dec 18, 2010 5:17 pm

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Eye and everything. It has crossed into the WPAC
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#11 Postby HURAKAN » Sat Dec 18, 2010 5:21 pm

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beautiful
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Re: CPAC: Invest 98C

#12 Postby Ptarmigan » Sat Dec 18, 2010 5:29 pm

I think it is a full blown tropical cyclone with an eye and eyewall. It is very small storm.
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Re: CPAC: Invest 98C

#13 Postby cycloneye » Sat Dec 18, 2010 5:42 pm

Impressive for being past mid-December. It has crossed the dateline ,so it will be a WPAC system from now on.
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Re: CPAC: Invest 98C

#14 Postby cycloneye » Sat Dec 18, 2010 6:15 pm

AN AREA OF CONVECTION HAS PERSISTED NEAR 22.6N 179.8E,
APPROXIMATELY 375 NM SOUTH-SOUTHWEST OF MIDWAY ATOLL. ANIMATED
MULTISPECTRAL SATELLITE IMAGERY SHOWS A WELL DEVELOPED LOW LEVEL
CIRCULATION CENTER (LLCC) WITH CENTRAL CONVECTION ALOFT, HOWEVER
FURTHER ANALYSIS INDICATES THE SYSTEM APPEARS TO BE SUBTROPICAL. A
RECENT AMSU CROSS-SECTION AND 200 MB ANALYSIS DEPICT A COLD-CORE CUT
OFF LOW ALOFT WITH A COLD-CORE ANOMALY EXTENDING UP TO 10 KM. THE
CIMMS TOTAL PRECIPITABLE WATER PRODUCT SHOWS COLD, DRY, AIR BEING
ENTRAINED INTO THE SYSTEM FROM THE NORTHWEST. MAXIMUM SUSTAINED
SURFACE WINDS ARE ESTIMATED AT 15 TO 20 KNOTS. MINIMUM SEA LEVEL
PRESSURE IS ESTIMATED TO BE NEAR 1000 MB. THE SYSTEM IS CURRENTLY
ASSESSED AS SUBTROPICAL AND WILL BE CLOSELY MONITORED FOR POSSIBLE
TRANSITION INTO A TROPICAL SYSTEM. BASED ON THE ABOVE ASSESSMENT THE
POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE
WITHIN THE NEXT 24 HOURS IS POOR.
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#15 Postby KatDaddy » Sat Dec 18, 2010 6:18 pm

No way do I buy into the assesment. 15-20kts?!
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Re: CPAC: Invest 98C

#16 Postby Macrocane » Sat Dec 18, 2010 7:37 pm

If this is not a tropical cyclone then Grace and Vince weren't either, very interesting system.
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#17 Postby Chacor » Sat Dec 18, 2010 9:40 pm

JMA have it on their marine warning at 00z:
LOW 1000 HPA AT 22N 180E SW SLOWLY.
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#18 Postby Chacor » Sat Dec 18, 2010 9:48 pm

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#19 Postby HURAKAN » Sat Dec 18, 2010 11:24 pm

Image

Image

Latest
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#20 Postby HURAKAN » Sat Dec 18, 2010 11:28 pm

19/0230 UTC 21.9N 179.1E T3.5/3.5 98C -- West Pacific

55 knots
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