SPAC: YASA - Post Tropical

Moderator: S2k Moderators

Message
Author
User avatar
ElectricStorm
Category 5
Category 5
Posts: 4493
Age: 23
Joined: Tue Aug 13, 2019 11:23 pm
Location: Skiatook, OK / Norman, OK

Re: SPAC: YASA - Severe Tropical Cyclone

#41 Postby ElectricStorm » Tue Dec 15, 2020 5:07 pm

JTWC now forecasting 140kt peak. If there's any good news for Fiji, it's that Yasa isn't forecast to hit at peak intensity, but a Cat 4 landfall will still be devastating.
0 likes   
I am in no way a professional. Take what I say with a grain of salt as I could be totally wrong. Please refer to the NHC, NWS, or SPC for official information.

Boomer Sooner!

User avatar
aspen
Category 5
Category 5
Posts: 8029
Joined: Sat Oct 12, 2019 7:10 pm
Location: Connecticut, USA

Re: SPAC: YASA - Severe Tropical Cyclone

#42 Postby aspen » Tue Dec 15, 2020 5:08 pm

Between this and Harold, the SPac has had a surprisingly impressive year. Yasa is one of the best looking TCs of 2020, although there's still some debris in the eye, so it could become clearer.
Image
Image
1 likes   
Irene '11 Sandy '12 Hermine '16 5/15/2018 Derecho Fay '20 Isaias '20 Elsa '21 Henri '21 Ida '21

I am only a meteorology enthusiast who knows a decent amount about tropical cyclones. Look to the professional mets, the NHC, or your local weather office for the best information.

User avatar
ElectricStorm
Category 5
Category 5
Posts: 4493
Age: 23
Joined: Tue Aug 13, 2019 11:23 pm
Location: Skiatook, OK / Norman, OK

Re: SPAC: YASA - Severe Tropical Cyclone

#43 Postby ElectricStorm » Tue Dec 15, 2020 5:15 pm

ADT at 6.7/132kts. Not bad. Raw also at 6.7
0 likes   
I am in no way a professional. Take what I say with a grain of salt as I could be totally wrong. Please refer to the NHC, NWS, or SPC for official information.

Boomer Sooner!

User avatar
aspen
Category 5
Category 5
Posts: 8029
Joined: Sat Oct 12, 2019 7:10 pm
Location: Connecticut, USA

Re: SPAC: YASA - Severe Tropical Cyclone

#44 Postby aspen » Tue Dec 15, 2020 6:34 pm

There are some outer bands on the 21z microwave pass, but they haven’t fused into a true outer eyewall just yet.
Image
0 likes   
Irene '11 Sandy '12 Hermine '16 5/15/2018 Derecho Fay '20 Isaias '20 Elsa '21 Henri '21 Ida '21

I am only a meteorology enthusiast who knows a decent amount about tropical cyclones. Look to the professional mets, the NHC, or your local weather office for the best information.

supercane4867
Category 5
Category 5
Posts: 4966
Joined: Wed Nov 14, 2012 10:43 am

Re: SPAC: YASA - Severe Tropical Cyclone

#45 Postby supercane4867 » Tue Dec 15, 2020 7:00 pm

Yasa and Zasu

Image
7 likes   

User avatar
Nancy Smar
Category 5
Category 5
Posts: 1081
Age: 23
Joined: Wed Aug 16, 2017 10:03 pm

Re: SPAC: YASA - Severe Tropical Cyclone

#46 Postby Nancy Smar » Tue Dec 15, 2020 8:00 pm

05P.YASA.140kts.914mb.14.6S.174.1E.
3 likes   

User avatar
ElectricStorm
Category 5
Category 5
Posts: 4493
Age: 23
Joined: Tue Aug 13, 2019 11:23 pm
Location: Skiatook, OK / Norman, OK

Re: SPAC: YASA - Severe Tropical Cyclone

#47 Postby ElectricStorm » Tue Dec 15, 2020 8:03 pm

5th Cat 5 of 2020 globally. Looks amazing on IR
3 likes   
I am in no way a professional. Take what I say with a grain of salt as I could be totally wrong. Please refer to the NHC, NWS, or SPC for official information.

Boomer Sooner!

User avatar
doomhaMwx
Category 5
Category 5
Posts: 2396
Age: 25
Joined: Tue Apr 18, 2017 4:01 am
Location: Baguio/Benguet, Philippines
Contact:

Re: SPAC: YASA - Severe Tropical Cyclone

#48 Postby doomhaMwx » Tue Dec 15, 2020 8:29 pm

HURRICANE WARNING 053 ISSUED FROM RSMC NADI Dec 160054 UTC.

TROPICAL CYCLONE YASA CENTRE 917HPA CATEGORY 5 WAS LOCATED NEAR 14.6
SOUTH 174.1 EAST AT 160000 UTC.
POSITION GOOD.
REPEAT POSITION 14.6S 174.1E at 160000 UTC.
CYCLONE MOVING EAST AT 6 KNOTS.
EXPECT SUSTAINED WINDS OF 120 KNOTS CLOSE TO THE CENTRE.

...
0 likes   
Like my content? Consider giving a tip.

User avatar
InfernoFlameCat
Category 5
Category 5
Posts: 1966
Age: 20
Joined: Mon Dec 14, 2020 10:52 am
Location: Buford, GA

Re: SPAC: YASA - Severe Tropical Cyclone

#49 Postby InfernoFlameCat » Tue Dec 15, 2020 8:37 pm

Is that a CMG ring I see!!! :double:
We could get a -80c ring soon!!!!!!!!!!!
1 likes   
I am by no means a professional. DO NOT look at my forecasts for official information or make decisions based on what I post.

Goal: to become a registered expert over tropical and subtropical cyclones.

User avatar
doomhaMwx
Category 5
Category 5
Posts: 2396
Age: 25
Joined: Tue Apr 18, 2017 4:01 am
Location: Baguio/Benguet, Philippines
Contact:

Re: SPAC: YASA - Severe Tropical Cyclone

#50 Postby doomhaMwx » Tue Dec 15, 2020 9:02 pm

Yasa has completed a clockwise loop.

Image
0 likes   
Like my content? Consider giving a tip.

User avatar
InfernoFlameCat
Category 5
Category 5
Posts: 1966
Age: 20
Joined: Mon Dec 14, 2020 10:52 am
Location: Buford, GA

Re: SPAC: YASA - Severe Tropical Cyclone

#51 Postby InfernoFlameCat » Tue Dec 15, 2020 9:19 pm

Yasa has one of the thickest w rings I have ever observed!
Hopefully an EWRC before landfall, otherwise I would have hoped it to intensify more.
Early signs point to an EWRC with Intense banding although that could fall apart...
0 likes   
I am by no means a professional. DO NOT look at my forecasts for official information or make decisions based on what I post.

Goal: to become a registered expert over tropical and subtropical cyclones.

IsabelaWeather
Tropical Storm
Tropical Storm
Posts: 216
Age: 34
Joined: Tue Jul 07, 2020 7:29 am
Location: Isabela, Puerto Rico

Re: SPAC: YASA - Severe Tropical Cyclone

#52 Postby IsabelaWeather » Tue Dec 15, 2020 9:22 pm

Wow, this is super bad news...

It is highly interesting, I follow a youtuber named Zatara and because of covid they are stuck on the west side of the main island in their catamaran.

But they don't have insurance during the SHEM TC season from 10*S to 30*S. Hopefully they and all of the other people will fare ok with this storm. They have much less protection than the people in Fiji, protocol is to hide out in the mangroves.........

YASA looks incredible on satellite right now, nearly a ring of -80*C Just incredible, I thought La Nina made the SW pacific much less condusive.

I mean, this is a pretty early season storm to be going off this nuts.

What would this be for the Atlantic, Mid July?
0 likes   

User avatar
mrbagyo
Category 5
Category 5
Posts: 3613
Age: 31
Joined: Thu Apr 12, 2012 9:18 am
Location: 14.13N 120.98E
Contact:

Re: SPAC: YASA - Severe Tropical Cyclone

#53 Postby mrbagyo » Tue Dec 15, 2020 9:28 pm

These GIF files are quite heavy hehe.
Image
Image
Image
7 likes   
The posts in this forum are NOT official forecast and should not be used as such. They are just the opinion of the poster and may or may not be backed by sound meteorological data. They are NOT endorsed by any professional institution or storm2k.org. For official information, please refer to RSMC, NHC and NWS products.

User avatar
doomhaMwx
Category 5
Category 5
Posts: 2396
Age: 25
Joined: Tue Apr 18, 2017 4:01 am
Location: Baguio/Benguet, Philippines
Contact:

Re: SPAC: YASA - Severe Tropical Cyclone

#54 Postby doomhaMwx » Tue Dec 15, 2020 10:07 pm

Image
REMARKS:
160300Z POSITION NEAR 14.6S 174.5E.
16DEC20. TROPICAL CYCLONE (TC) 05P (YASA), LOCATED APPROXIMATELY 325
NM NORTHWEST OF SUVA, FIJI, HAS TRACKED EASTWARD AT 06 KNOTS OVER
THE PAST SIX HOURS. TC 05P HAS RAPIDLY INTENSIFIED 45 KNOTS OVER THE
PAST 24 HOURS, FROM 95 KNOTS AT 15/00Z TO 140 KNOTS AT 16/00Z.

ANIMATED ENHANCED INFRARED SATELLITE IMAGERY DEPICTS A SYMMETRIC
RING OF DEEP CONVECTION SURROUNDING A 30NM ROUND EYE, WHICH SUPPORTS
THE INITIAL POSITION WITH GOOD CONFIDENCE, WITH SPIRAL BANDING OVER
THE EASTERN SEMICIRCLE. A 152143Z MHS 89GHZ COMPOSITE MICROWAVE
IMAGE DEPICTS AN ONGOING EYEWALL REPLACEMENT CYCLE (ERC) WITH THE
INNER EYEWALL SURROUNDED BY A DEVELOPING SECONDARY EYEWALL. THE
INITIAL INTENSITY IS ASSESSED AT 140 KNOTS BASED ON PGTW/KNES/PHFO
DVORAK ESTIMATES OF T7.0 (140 KNOTS). ANIMATED WATER VAPOR IMAGERY
CONTINUES TO INDICATE RADIAL OUTFLOW WITH ENHANCED POLEWARD FLOW
INTO THE MIDLATITUDE WESTERLIES TO THE SOUTH. ADDITIONALLY, VERTICAL
WIND SHEAR (VWS) REMAINS LOW AND SST (28-29C) VALUES REMAIN
CONDUCIVE. TC 05P IS FORECAST TO TRACK EASTWARD THROUGH TAU 12 UNDER
THE STEERING INFLUENCE OF THE NEAR-EQUATORIAL RIDGE TO THE NORTH BUT
WILL GRADUALLY TURN POLEWARD AS THE SUBTROPICAL RIDGE (STR) BUILDS
TO THE EAST. TC 05P WILL MAINTAIN INTENSITY AT 140 KNOTS UNDER
FAVORABLE CONDITIONS THROUGH TAU 12. THERE IS SIGNIFICANT
UNCERTAINTY IN THE INTENSITY FORECAST OVER THE NEXT 24-36 HOURS DUE
TO THE POSSIBLE ERC (SUGGESTED BY THE UW-CIMSS M-PERC PRODUCT).
AS
TC 05P APPROACHES THE TWO MAJOR ISLANDS OF FIJI, VITI LEVU AND VANUA
LEVU, GRADUAL WEAKENING SHOULD OCCUR, HOWEVER THE SYSTEM WILL REMAIN
NEAR 120 KNOTS. AFTER TAU 48 AND PASSAGE OVER THE TWO MAJOR ISLANDS
OF FIJI, THE SYSTEM WILL TURN SOUTHWARD AS THE STR BUILDS TO THE
EAST IN THE WAKE OF TC 06P. AFTER TAU 72, ANOTHER STR IS EXPECTED TO
BUILD TO THE SOUTH WHICH WILL TURN THE SYSTEM SOUTHWESTWARD. DUE TO
THE UNCERTAINTY IN THE TIMING OF THE SOUTHWARD TURN AND LARGE SPREAD
IN NUMERICAL MODEL GUIDANCE, THERE IS MODERATE CONFIDENCE IN THE
JTWC FORECAST TRACK. AFTER TAU 48, TC 05P SHOULD GRADUALLY WEAKEN
THROUGH THE FORECAST PERIOD AS SST VALUES COOL TO 26C AND VWS
INCREASES TO 15-25 KNOTS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 160000Z
IS 38 FEET. NEXT WARNINGS AT 160900Z, 161500Z, 162100Z AND 170300Z.
REFER TO TROPICAL CYCLONE 06P (ZAZU) WARNINGS (WTPS32 PGTW)
FOR SIX-HOURLY UPDATES.//
NNNN
0 likes   
Like my content? Consider giving a tip.

User avatar
aspen
Category 5
Category 5
Posts: 8029
Joined: Sat Oct 12, 2019 7:10 pm
Location: Connecticut, USA

Re: SPAC: YASA - Severe Tropical Cyclone

#55 Postby aspen » Tue Dec 15, 2020 10:22 pm

Nearly a full CMG ring. If the EWRC doesn’t start soon, Yasa could get close to 150 kt before weakening.
Image
1 likes   
Irene '11 Sandy '12 Hermine '16 5/15/2018 Derecho Fay '20 Isaias '20 Elsa '21 Henri '21 Ida '21

I am only a meteorology enthusiast who knows a decent amount about tropical cyclones. Look to the professional mets, the NHC, or your local weather office for the best information.

User avatar
InfernoFlameCat
Category 5
Category 5
Posts: 1966
Age: 20
Joined: Mon Dec 14, 2020 10:52 am
Location: Buford, GA

Re: SPAC: YASA - Severe Tropical Cyclone

#56 Postby InfernoFlameCat » Tue Dec 15, 2020 10:25 pm

My first successful EWRC outlook!!!
Before even an official website !!! :lol: :)
If this EWRC does occur this will be a massive eye. maybe 50-60 NM
0 likes   
I am by no means a professional. DO NOT look at my forecasts for official information or make decisions based on what I post.

Goal: to become a registered expert over tropical and subtropical cyclones.

User avatar
ElectricStorm
Category 5
Category 5
Posts: 4493
Age: 23
Joined: Tue Aug 13, 2019 11:23 pm
Location: Skiatook, OK / Norman, OK

Re: SPAC: YASA - Severe Tropical Cyclone

#57 Postby ElectricStorm » Tue Dec 15, 2020 10:33 pm

InfernoFlameCat wrote:My first successful EWRC outlook!!!
Before even an official website !!! :lol: :)
If this EWRC does occur this will be a massive eye. maybe 50-60 NM

Huh? I haven't seen a microwave pass in a while so I'm not entirely sure, but I don't think an EWRC has started yet. I could be wrong though.
0 likes   
I am in no way a professional. Take what I say with a grain of salt as I could be totally wrong. Please refer to the NHC, NWS, or SPC for official information.

Boomer Sooner!

User avatar
InfernoFlameCat
Category 5
Category 5
Posts: 1966
Age: 20
Joined: Mon Dec 14, 2020 10:52 am
Location: Buford, GA

Re: SPAC: YASA - Severe Tropical Cyclone

#58 Postby InfernoFlameCat » Tue Dec 15, 2020 10:35 pm

Weather Dude wrote:
InfernoFlameCat wrote:My first successful EWRC outlook!!!
Before even an official website !!! :lol: :)
If this EWRC does occur this will be a massive eye. maybe 50-60 NM

Huh? I haven't seen a microwave pass in a while so I'm not entirely sure, but I don't think an EWRC has started yet. I could be wrong though.

Read the above message above my last post.
0 likes   
I am by no means a professional. DO NOT look at my forecasts for official information or make decisions based on what I post.

Goal: to become a registered expert over tropical and subtropical cyclones.

User avatar
InfernoFlameCat
Category 5
Category 5
Posts: 1966
Age: 20
Joined: Mon Dec 14, 2020 10:52 am
Location: Buford, GA

Re: SPAC: YASA - Severe Tropical Cyclone

#59 Postby InfernoFlameCat » Tue Dec 15, 2020 10:35 pm

Imran_doomhaMwx wrote:https://i.imgur.com/OPRuXNE.gif
REMARKS:
160300Z POSITION NEAR 14.6S 174.5E.
16DEC20. TROPICAL CYCLONE (TC) 05P (YASA), LOCATED APPROXIMATELY 325
NM NORTHWEST OF SUVA, FIJI, HAS TRACKED EASTWARD AT 06 KNOTS OVER
THE PAST SIX HOURS. TC 05P HAS RAPIDLY INTENSIFIED 45 KNOTS OVER THE
PAST 24 HOURS, FROM 95 KNOTS AT 15/00Z TO 140 KNOTS AT 16/00Z.

ANIMATED ENHANCED INFRARED SATELLITE IMAGERY DEPICTS A SYMMETRIC
RING OF DEEP CONVECTION SURROUNDING A 30NM ROUND EYE, WHICH SUPPORTS
THE INITIAL POSITION WITH GOOD CONFIDENCE, WITH SPIRAL BANDING OVER
THE EASTERN SEMICIRCLE. A 152143Z MHS 89GHZ COMPOSITE MICROWAVE
IMAGE DEPICTS AN ONGOING EYEWALL REPLACEMENT CYCLE (ERC) WITH THE
INNER EYEWALL SURROUNDED BY A DEVELOPING SECONDARY EYEWALL. THE
INITIAL INTENSITY IS ASSESSED AT 140 KNOTS BASED ON PGTW/KNES/PHFO
DVORAK ESTIMATES OF T7.0 (140 KNOTS). ANIMATED WATER VAPOR IMAGERY
CONTINUES TO INDICATE RADIAL OUTFLOW WITH ENHANCED POLEWARD FLOW
INTO THE MIDLATITUDE WESTERLIES TO THE SOUTH. ADDITIONALLY, VERTICAL
WIND SHEAR (VWS) REMAINS LOW AND SST (28-29C) VALUES REMAIN
CONDUCIVE. TC 05P IS FORECAST TO TRACK EASTWARD THROUGH TAU 12 UNDER
THE STEERING INFLUENCE OF THE NEAR-EQUATORIAL RIDGE TO THE NORTH BUT
WILL GRADUALLY TURN POLEWARD AS THE SUBTROPICAL RIDGE (STR) BUILDS
TO THE EAST. TC 05P WILL MAINTAIN INTENSITY AT 140 KNOTS UNDER
FAVORABLE CONDITIONS THROUGH TAU 12. THERE IS SIGNIFICANT
UNCERTAINTY IN THE INTENSITY FORECAST OVER THE NEXT 24-36 HOURS DUE
TO THE POSSIBLE ERC (SUGGESTED BY THE UW-CIMSS M-PERC PRODUCT).
AS
TC 05P APPROACHES THE TWO MAJOR ISLANDS OF FIJI, VITI LEVU AND VANUA
LEVU, GRADUAL WEAKENING SHOULD OCCUR, HOWEVER THE SYSTEM WILL REMAIN
NEAR 120 KNOTS. AFTER TAU 48 AND PASSAGE OVER THE TWO MAJOR ISLANDS
OF FIJI, THE SYSTEM WILL TURN SOUTHWARD AS THE STR BUILDS TO THE
EAST IN THE WAKE OF TC 06P. AFTER TAU 72, ANOTHER STR IS EXPECTED TO
BUILD TO THE SOUTH WHICH WILL TURN THE SYSTEM SOUTHWESTWARD. DUE TO
THE UNCERTAINTY IN THE TIMING OF THE SOUTHWARD TURN AND LARGE SPREAD
IN NUMERICAL MODEL GUIDANCE, THERE IS MODERATE CONFIDENCE IN THE
JTWC FORECAST TRACK. AFTER TAU 48, TC 05P SHOULD GRADUALLY WEAKEN
THROUGH THE FORECAST PERIOD AS SST VALUES COOL TO 26C AND VWS
INCREASES TO 15-25 KNOTS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 160000Z
IS 38 FEET. NEXT WARNINGS AT 160900Z, 161500Z, 162100Z AND 170300Z.
REFER TO TROPICAL CYCLONE 06P (ZAZU) WARNINGS (WTPS32 PGTW)
FOR SIX-HOURLY UPDATES.//
NNNN

This one.
0 likes   
I am by no means a professional. DO NOT look at my forecasts for official information or make decisions based on what I post.

Goal: to become a registered expert over tropical and subtropical cyclones.

User avatar
doomhaMwx
Category 5
Category 5
Posts: 2396
Age: 25
Joined: Tue Apr 18, 2017 4:01 am
Location: Baguio/Benguet, Philippines
Contact:

Re: SPAC: YASA - Severe Tropical Cyclone

#60 Postby doomhaMwx » Tue Dec 15, 2020 10:48 pm

0 likes   
Like my content? Consider giving a tip.


Return to “2020”

Who is online

Users browsing this forum: No registered users and 13 guests