2018 WPAC Season
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Re: 2018 WPAC Season
+200 hours? Would believe GFS but you know it's GFS likes to fantasize.
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Re: 2018 WPAC Season
MJO and ER wave activity also dominate the Week-2 forecast with moderate chances of above-average rainfall over, south, and west of Hawaii. The twin gyres associated with the ER wave over the central Pacific are expected to propagate further west and are associated with moderate chances of anomalous rainfall. Additionally, gyres associated with ER waves often provide conducive environments for the formation of tropical cyclones, so there are moderate risk areas for TC formation around each gyre. Convection over the northern coast of Australia is expected to continue during Week-2 and the anomalously warm temperatures over northern Africa are expected to continue expanding eastward over Egypt and the Arabian Peninsula.
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Re: 2018 WPAC Season
NAVGEM the most aggressive out of the 3. Takes it towards Guam while GFS and EURO no development and passing south.
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Re: 2018 WPAC Season
NWS:
.Eastern Micronesia...
The circulation that was south of Pohnpei near 4N160E last night
has opened up into a surface trough with an axis aligned SW-NE
over Pohnpei. Convection has begun to redevelop between Pohnpei
and 10N and is expected to persist the next several days. Both GFS
and ECMWF show a small circulation reforming tomorrow near Pohnpei
and then slowly heading west. Westward motion may be a little
premature, but the unstable weather pattern is fairly certain.
Have kept isolated showers and thunderstorms at Kosrae the next
several days as the focus of activity will be farther to the
northwest, but increased showers over the weekend is still a
possibility. At Majuro, trade-wind convergence will maintain
scattered showers through Friday. A slow-moving surface trough
will maintain isolated thunderstorms in the long term.
&&
.Western Micronesia...
A surge of northeast trade winds have brought scattered showers to
Chuuk this afternoon and the showers will continue through the
night before pushing off to the southwest. Decided to reduce
showers over the weekend based on model guidance in keeping
the bulk of convection farther east. With the circulation expected
to move so slowly, showers will be a little slower to reach Chuuk.
Fairly benign weather will persist at Yap and Palau for the next
several days with little change expected from the moderate trade
winds. Northerly swell has decreased and shifted more easterly
thus surf has fallen below hazardous levels along north facing
reefs.
.Eastern Micronesia...
The circulation that was south of Pohnpei near 4N160E last night
has opened up into a surface trough with an axis aligned SW-NE
over Pohnpei. Convection has begun to redevelop between Pohnpei
and 10N and is expected to persist the next several days. Both GFS
and ECMWF show a small circulation reforming tomorrow near Pohnpei
and then slowly heading west. Westward motion may be a little
premature, but the unstable weather pattern is fairly certain.
Have kept isolated showers and thunderstorms at Kosrae the next
several days as the focus of activity will be farther to the
northwest, but increased showers over the weekend is still a
possibility. At Majuro, trade-wind convergence will maintain
scattered showers through Friday. A slow-moving surface trough
will maintain isolated thunderstorms in the long term.
&&
.Western Micronesia...
A surge of northeast trade winds have brought scattered showers to
Chuuk this afternoon and the showers will continue through the
night before pushing off to the southwest. Decided to reduce
showers over the weekend based on model guidance in keeping
the bulk of convection farther east. With the circulation expected
to move so slowly, showers will be a little slower to reach Chuuk.
Fairly benign weather will persist at Yap and Palau for the next
several days with little change expected from the moderate trade
winds. Northerly swell has decreased and shifted more easterly
thus surf has fallen below hazardous levels along north facing
reefs.
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Re: 2018 WPAC Season
000
WWPQ80 PGUM 160422
SPSPQ
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TIYAN GU
221 PM ChST Fri Mar 16 2018
PMZ173-174-162300-
POHNPEI-KOSRAE-
221 PM ChST Fri Mar 16 2018
...HEAVY RAIN ACROSS POHNPEI AND KOSRAE STATES THROUGH TONIGHT...
A BROAD TROPICAL DISTURBANCE IS CENTERED NEAR POHNPEI ISLAND AT
7N158E THIS AFTERNOON. FAVORABLE UPPER-LEVEL DYNAMICS WILL CONTINUE
TO TRIGGER WIDESPREAD DEEP CONVECTION NEAR THIS SYSTEM ACROSS
KOSRAE...POHNPEI AND NEARBY ISLANDS/ATOLLS THROUGH TONIGHT.
NEARLY SEVEN INCHES OF RAIN HAVE FALLEN ACROSS POHNPEI AND KOSRAE FOR
THE PAST 9 HOURS. ADDITIONAL RAINFALL OF 3 TO 5 INCHES IS PROBABLE
THROUGH TONIGHT. THIS WILL LIKELY CAUSE WIDESPREAD FLOODING ACROSS
POOR-DRAINAGE AND LOW-LYING AREAS ON KOSRAE...POHNPEI AND NEARBY
ISLANDS/ATOLLS. THE POTENTIAL FOR FLASH FLOODS AND MUDSLIDES NEAR
VALLEYS AND SLOPES FOR POHNPEI AND KOSRAE ISLANDS WILL ALSO INCREASE
SIGNIFICANTLY.
RESIDENTS ON THESE ISLANDS/ATOLLS NEED TO MONITOR THIS SITUATION
CLOSELY AND LISTEN TO INSTRUCTIONS AND UPDATES FROM THEIR LOCAL
EMERGENCY MANAGEMENT AND WEATHER SERVICE OFFICES.
$$
CHAN
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Re: 2018 WPAC Season
This will certainly add some flare to it.
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Re: 2018 WPAC Season
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- doomhaMwx
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Re: 2018 WPAC Season
Vietnam's NCHMF is forecasting 12-13 tropical cyclones to form over or enter the South China Sea(East Sea) this 2018, with five to six of these expected to directly hit/impact mainland Vietnam, especially the central region.
http://vietnamnews.vn/society/424485/ce ... pJqllrR.97
http://vietnamnews.vn/society/424485/ce ... pJqllrR.97
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- JoshwaDone
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Re: 2018 WPAC Season
96W is taking shape or i think it's going on and off with its structure.. but still it might become our first typhoon of the season, also it might enter the PAR so if it does develops, "Caloy" will be its name.. JMA will decide to name it "Jelawat"
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Re: 2018 WPAC Season
Very active season ocean wise.
Last edited by euro6208 on Sun Mar 25, 2018 8:33 pm, edited 2 times in total.
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Re: 2018 WPAC Season
Observatory chief forecasts early typhoon season, hot days for Hong Kong
Five to eight tropical cyclones forecast to enter within 500 kilometres of the city starting in June or earlier, Observatory director says
Five to eight tropical cyclones forecast to enter within 500 kilometres of the city starting in June or earlier, Observatory director says
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- StruThiO
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Re: 2018 WPAC Season
euro6208 wrote:Very active season ocean wise.
perennially favorable conditions indeed. I sure hope the wpac gets recon (at the very least for super typhoons) especially that are going to make landfall. Does anyone know if there are any plans to begin routine recon eg by 2020 or is it as of now that it ain't happening?
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- 1900hurricane
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Re: 2018 WPAC Season
As of now, there is only limited recon availability in the WPac. Taiwan has been flying missions similar to the NOAA Gulfstream missions around the periphery of systems for several years now, but no actual center fixes. Just last year, Japanese recon did make their first center fixes of their new recon program into Typhoon Lan, where dropsondes measured pressures as low as 923 mb. However, I know very little about that recon program (such as even where to find the data), and it might just be flown for Japan threats. There has also been chatter for a while now about Global Hawk missions from Guam, but I am not aware of anything transpiring on that front. Aside from that, there are also very occasionally research flights in the WPac (Jangmi '08 and Megi '10 are two of the most recent examples), but that's about it.
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- StruThiO
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Re: 2018 WPAC Season
very unfortunate as the potential information could be great for research and for better forecasts/advisories. Anyways thank you for the info, your posts are always extremely informative and knowledgable.
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- doomhaMwx
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Re: 2018 WPAC Season
euro6208 wrote:Observatory chief forecasts early typhoon season, hot days for Hong Kong
Five to eight tropical cyclones forecast to enter within 500 kilometres of the city starting in June or earlier, Observatory director says
More info here: http://www.hko.gov.hk/press/WP/2018/pre20180323.htm
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Re: 2018 WPAC Season
1900hurricane wrote:As of now, there is only limited recon availability in the WPac. Taiwan has been flying missions similar to the NOAA Gulfstream missions around the periphery of systems for several years now, but no actual center fixes. Just last year, Japanese recon did make their first center fixes of their new recon program into Typhoon Lan, where dropsondes measured pressures as low as 923 mb. However, I know very little about that recon program (such as even where to find the data), and it might just be flown for Japan threats. There has also been chatter for a while now about Global Hawk missions from Guam, but I am not aware of anything transpiring on that front. Aside from that, there are also very occasionally research flights in the WPac (Jangmi '08 and Megi '10 are two of the most recent examples), but that's about it.
Why not? Guam is in the middle of typhoon alley the world's busiest basin and has an ever increasing 3rd largest U.S military presence in the WPAC. I can see one day. Maybe move the JTWC back? Doubt it.
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Re: 2018 WPAC Season
StruThiO wrote::uarrow:
very unfortunate as the potential information could be great for research and for better forecasts/advisories. Anyways thank you for the info, your posts are always extremely informative and knowledgable.
Very unfortunate. Recon ended in 1987 alright but there have been a couple typhoons that had recon penetrated into. Flo in 1990 with a measured mb of 891mb. Jangmi 906 mb in 2008, and who would forget Megi from 2010...175 knots winds but not acknowledge. It's really unfortunate.
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- JoshwaDone
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Re: 2018 WPAC Season
have you all noticed the limited intensification of storms lately since last year? some disturbances start out very far away from micronesia but doesn't intensify into monstrous typhoons, just weak tropical storms or depressions.
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- StruThiO
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Re: 2018 WPAC Season
euro6208 wrote:StruThiO wrote::uarrow:
very unfortunate as the potential information could be great for research and for better forecasts/advisories. Anyways thank you for the info, your posts are always extremely informative and knowledgable.
Very unfortunate. Recon ended in 1987 alright but there have been a couple typhoons that had recon penetrated into. Flo in 1990 with a measured mb of 891mb. Jangmi 906 mb in 2008, and who would forget Megi from 2010...175 knots winds but not acknowledge. It's really unfortunate.
Yeah no doubt super typhoons at least deserve direct obs.
JoshwaDone wrote:have you all noticed the limited intensification of storms lately since last year? some disturbances start out very far away from micronesia but doesn't intensify into monstrous typhoons, just weak tropical storms or depressions.
Yeah, im sure this will change as we enter summer.
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- JoshwaDone
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Re: 2018 WPAC Season
StruThiO wrote:JoshwaDone wrote:have you all noticed the limited intensification of storms lately since last year? some disturbances start out very far away from micronesia but doesn't intensify into monstrous typhoons, just weak tropical storms or depressions.
Yeah, im sure this will change as we enter summer.
is there a very long range forecast about it? if you do, links please
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