WPAC: INVEST 90W

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Typhoon10
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WPAC: INVEST 90W

#1 Postby Typhoon10 » Fri Jul 23, 2010 7:11 pm

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StormingB81
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#2 Postby StormingB81 » Fri Jul 23, 2010 11:22 pm

JMA upgrades

TROPICAL DEPRESSION 1008 HPA AT 25N 122E NNW 10 KT.
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#3 Postby HURAKAN » Sat Jul 24, 2010 6:23 am

AN AREA OF CONVECTION HAS PERSISTED NEAR 25.1N 122.3E,
APPROXIMATELY 45 NM EAST OF TAIPEI, TAIWAN. ANIMATED MULTISPECTRAL
SATELLITE IMAGERY DEPICTS FLARING DEEP CONVECTION AND WHAT APPEARS
TO BE A MID-LEVEL CIRCULATION OVER NORTHEASTERN TAIWAN. A PARTIAL
240120Z ASCAT PASS INDICATES BROAD LOW LEVEL TURNING OVER NORTHERN
TAIWAN (10 TO 15 KNOTS), HOWEVER RADAR IMAGERY FROM TAIWAN AND AN
OBSERVATION AT 24.5N 122.8E (NORTHERLY WINDS AT 30 KNOTS WITH A 2 MB
PRESSURE DROP OVER 24 HOURS) INDICATE THAT A LOW LEVEL CENTER MAY
EXIST SLIGHTLY EAST OF TAIWAN. UPPER LEVEL ANALYSIS INDICATES THIS
POSSIBLE LLCC IS IN AN AREA OF MODERATE (20 TO 25 KNOTS)
NORTHWESTERLY VERTICAL WIND SHEAR. MAXIMUM SUSTAINED SURFACE WINDS
ARE ESTIMATED AT 10 TO 15 KNOTS. MINIMUM SEA LEVEL PRESSURE IS
ESTIMATED TO BE NEAR 1007 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A
SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS POOR.
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#4 Postby HURAKAN » Sat Jul 24, 2010 6:26 am

TROPICAL DEPRESSION 1008 HPA AT 25N 122E NW SLOWLY

24 hour map shows the low moving towards China and making landfall
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#5 Postby supercane » Sat Jul 24, 2010 1:45 pm

WARNING AND SUMMARY 241200.
<snip>
TROPICAL DEPRESSION 1008 HPA AT 25N 121E WNW SLOWLY.

No expectation of intensification given that JMA is not writing any advisory on the system.
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#6 Postby supercane » Sat Jul 24, 2010 1:55 pm

Image

Doesn't look spectacular on radar either (area on south tip of Taiwan)
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#7 Postby supercane » Sat Jul 24, 2010 2:22 pm

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...or satellite. Area in the South China Sea looks better but is in the monsoon trough and undergoing NE shear.
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#8 Postby Chacor » Sat Jul 24, 2010 8:38 pm

At 18z,
TROPICAL DEPRESSION 1008 HPA AT 26N 120E WNW SLOWLY.

Very close to landfall, JMA has it centred in the Taiwan Strait.
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#9 Postby Chacor » Sat Jul 24, 2010 10:29 pm

No longer in the JMA's marine warning at 00z.
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#10 Postby supercane » Sun Jul 25, 2010 12:01 am

From JTWC KML file:
Tropical Cyclone 90W

25 Jul 2010 0000Z
Location: 26.3 120.3
Winds: 15 knots
Central Pressure: 1010 hPa

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#11 Postby supercane » Sun Jul 25, 2010 12:05 am

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Call it a day. Next!
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#12 Postby StormingB81 » Sun Jul 25, 2010 11:11 pm

Does it look like this pesky storm is trying to form up again?
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#13 Postby supercane » Mon Jul 26, 2010 12:30 am

No mention of a distinct low by JMA in their analysis and not reactived by NRL/JTWC, but I see what you mean. Looks like extension of monsoon trough on satellite.
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Re: WPAC: INVEST 90W

#14 Postby P.K. » Mon Jul 26, 2010 4:40 pm

18Z and this is a TD again.

TROPICAL DEPRESSION 1004 HPA
AT 27.7N 121.3E EAST CHINA SEA MOVING NORTHNORTHEAST SLOWLY.
POSITION POOR.
MAX WINDS 30 KNOTS.
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#15 Postby KWT » Mon Jul 26, 2010 4:58 pm

Good call StormingB81, this system sure has taken an interesting track around Taiwan.
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#16 Postby StormingB81 » Mon Jul 26, 2010 6:04 pm

I cheated I am in Okinawa and was looking at the radar and so it flare up again

Wonder if it will move north or move around. It has really been in the same spot. Weather said we will feel the effects today and tomorrow here in Okinawa.
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Re: WPAC: INVEST 90W

#17 Postby P.K. » Tue Jul 27, 2010 6:40 am

Not sure why this has been moved into the archive area again as it is still active.

06Z:

TROPICAL DEPRESSION 1002 HPA
AT 31.0N 122.7E EAST CHINA SEA MOVING NORTHNORTHEAST 10 KNOTS.
POSITION POOR.
MAX WINDS 30 KNOTS.
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#18 Postby Chacor » Tue Jul 27, 2010 7:07 am

That'd be because that's 92W.
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Re: WPAC: INVEST 90W

#19 Postby cycloneye » Tue Jul 27, 2010 7:11 am

So this invest is not active after all? Man,they put a little thunderstorm as invests in the WPAC, no wonder they pop up a lot :)
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Re: WPAC: INVEST 90W

#20 Postby P.K. » Tue Jul 27, 2010 7:17 am

Ah yes it looks like it got renumbered to 92W then.
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