WPAC: BOPHA - Remnants

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Re: WPAC: BOPHA - Tropical Storm

#161 Postby cycloneye » Wed Nov 28, 2012 2:16 pm

JMA up to 45kts and track goes over Palau.

TS 1224 (BOPHA)
Issued at 18:50 UTC, 28 November 2012
<Analyses at 28/18 UTC>
Scale -
Intensity -
Center position N4°40'(4.7°)
E151°00'(151.0°)
Direction and speed of movement WSW 15km/h(8kt)
Central pressure 994hPa
Maximum wind speed near the center 23m/s(45kt)
Maximum wind gust speed 35m/s(65kt)
Area of 30kt winds or more ALL280km(150NM)

<Forecast for 29/18 UTC>
Intensity -
Center position of probability circle N4°35'(4.6°)
E147°20'(147.3°)
Direction and speed of movement W 15km/h(9kt)
Central pressure 985hPa
Maximum wind speed near the center 25m/s(50kt)
Maximum wind gust speed 35m/s(70kt)
Radius of probability circle 130km(70NM)

<Forecast for 30/18 UTC>
Intensity Strong
Center position of probability circle N5°10'(5.2°)
E143°35'(143.6°)
Direction and speed of movement W 15km/h(9kt)
Central pressure 970hPa
Maximum wind speed near the center 35m/s(65kt)
Maximum wind gust speed 50m/s(95kt)
Radius of probability circle 200km(110NM)
Storm warning area ALL310km(170NM)

<Forecast for 01/18 UTC>
Intensity Strong
Center position of probability circle N6°10'(6.2°)
E139°50'(139.8°)
Direction and speed of movement W 20km/h(10kt)
Central pressure 970hPa
Maximum wind speed near the center 35m/s(65kt)
Maximum wind gust speed 50m/s(95kt)
Radius of probability circle 300km(160NM)
Storm warning area ALL410km(220NM)

Image
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Re: WPAC: BOPHA - Tropical Storm

#162 Postby supercane4867 » Wed Nov 28, 2012 2:19 pm

BULLETIN
TROPICAL STORM BOPHA (26W) SPECIAL ADVISORY NUMBER 12A
NATIONAL WEATHER SERVICE TIYAN GU WP262012
500 AM CHST THU NOV 29 2012

...TROPICAL STORM BOPHA (26W) IS DIPPING A LITTLE SOUTHWARD...

THE TROPICAL STORM WARNING FOR LUKUNOR AND THE SOUTHERN MORTLOCKS IS
CANCELED AS OF 5 AM CHST.

A TROPICAL STORM WARNING REMAINS IN EFFECT FOR PULUWAT IN CHUUK
STATE AND SATAWAL IN YAP STATE.

A TYPHOON WATCH REMAINS IN EFFECT FOR WOLEAI IN YAP STATE.

A TROPICAL STORM WATCH REMAINS IN EFFECT FOR FARAULEP IN YAP STATE.

A TROPICAL STORM WARNING MEANS TROPICAL STORM CONDITIONS...INCLUDING
DAMAGING WINDS OF 39 TO 73 MPH...ARE EXPECTED WITHIN 24 HOURS.

A TYPHOON WATCH MEANS THAT TYPHOON CONDITIONS INCLUDING SUSTAINED
WINDS GREATER THAN 73 MPH ARE POSSIBLE WITHIN 48 HOURS.

A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS...
INCLUDING DAMAGING WINDS OF 39 TO 73 MPH...ARE POSSIBLE WITHIN 48
HOURS.

AT 4 AM CHST...1800Z...THE CENTER OF TROPICAL STORM BOPHA WAS
LOCATED NEAR LATITUDE 4.4 DEGREES NORTH AND LONGITUDE 150.7 DEGREES
EAST.

THIS IS ABOUT 240 MILES WEST-SOUTHWEST OF LUKUNOR
230 MILES SOUTH-SOUTHWEST OF WENO ISLAND CHUUK
215 MILES SOUTH-SOUTHEAST OF PULUWAT
325 MILES SOUTHEAST OF SATAWAL
510 MILES SOUTHEAST OF FARAULEP AND
510 MILES EAST-SOUTHEAST OF WOLEAI.

TROPICAL STORM BOPHA IS MOVING WEST AT 10 MPH. THIS GENERAL MOTION
IS EXPECTED TO CONTINUE OVER THE NEXT 24 HOURS WITH A SLIGHT
INCREASE IN FORWARD SPEED.

MAXIMUM SUSTAINED WINDS ARE 65 MPH. TROPICAL STORM BOPHA IS EXPECTED
TO CONTINUE INTENSIFYING THROUGH TONIGHT...AND MAY BECOME A TYPHOON
LATER TODAY. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 65
MILES FROM THE CENTER.

REPEATING THE 4 AM POSITION...4.4 DEGREES NORTH LATITUDE AND 150.7
DEGREES EAST LONGITUDE...MOVING WEST AT 10 MPH WITH MAXIMUM
SUSTAINED WINDS OF 65 MPH.

THE NEXT SCHEDULED ADVISORY WILL BE ISSUED BY THE NATIONAL WEATHER
SERVICE AT 8 AM THIS MORNING FOLLOWED BY AN INTERMEDIATE ADVISORY
AT 11 AM CHST.
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Re: WPAC: BOPHA - Tropical Storm

#163 Postby ManilaTC » Wed Nov 28, 2012 2:23 pm

But that is ATD...
as comparison

728
TXPQ27 KNES 281535
TCSWNP

A. 26W (BOPHA)
B. 28/1430Z
C. 4.3N
D. 151.6E

E. FIVE/MTSAT
F. T3.0/3.5/S0.0/24HRS
G. IR/EIR/SWIR
H. REMARKS...SYSTEM IS CHARACTERIZED BY A CENTRAL COLD COVER (CCC)
WHICH DOES NOT ALLOW FOR A DT. MET AND PT ARE 3.0. FT IS BASED ON MET.
I. ADDL POSITIONS

NIL

...LIDDICK
286
TPPN10 PGTW 281757

A. TROPICAL STORM 26W (BOPHA)
B. 28/1730Z
C. 4.8N
D. 150.6E
E. FIVE/MTSAT
F. T3.5/3.5/D0.5/24HRS STT: S0.0/03HRS
G. IR/EIR
H. REMARKS: 38A/PBO SBC/ANMTN. A .75 WRAP WITH WHITE BANDING
FEATURE YIELDS A DT OF 3.5. MET AND PT AGREE. DBO DT.

WTPQ20 RJTD 281800
RSMC TROPICAL CYCLONE ADVISORY
NAME TS 1224 BOPHA (1224)
ANALYSIS
PSTN 281800UTC 04.7N 151.0E FAIR
MOVE WSW 08KT

PRES 994HPA
MXWD 045KT
GUST 065KT
30KT 150NM
FORECAST
24HF 291800UTC 04.6N 147.3E 70NM 70%
MOVE W 09KT
PRES 985HPA
MXWD 050KT
GUST 070KT
48HF 301800UTC 05.2N 143.6E 110NM 70%
MOVE W 09KT
PRES 970HPA
MXWD 065KT
GUST 095KT
72HF 011800UTC 06.2N 139.8E 160NM 70%
MOVE W 10KT
PRES 970HPA
MXWD 065KT
GUST 095KT =

I. ADDITIONAL POSITIONS: NONE


UEHARA
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Re: WPAC: BOPHA - Tropical Storm

#164 Postby supercane4867 » Wed Nov 28, 2012 2:36 pm

Notice the southwesterly jog
Image
It appears as though it may still heading slightly south of west
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Re: WPAC: BOPHA - Tropical Storm

#165 Postby ManilaTC » Wed Nov 28, 2012 3:13 pm

NEW DEVELOPMENT

914
TXPQ27 KNES 281958
TCSWNP
CCA

A. 26W (BOPHA)
B. 28/0830Z
C. 5.1N
D. 152.9E

E. THREE/MTSAT
F. T2.5/3.0/W0.5/24HRS
G. IR/EIR/AMSU

H. REMARKS...REANALYSIS BASED ON 0746Z AMSU DATA. CENTER IS LESS THAN
0.5 DEGREES FROM ACTIVE DEEP CONVECTION WHICH RESULTS IN A DT OF 3.0.
MET AGREES WHILE PT IS 2.5. FT IS BASED ON PT
.

I. ADDL POSITIONS
28/0509Z 5.3N 153.2E AMSU
...TURK

================================================

248
TXPQ27 KNES 282005
TCSWNP
CCA

A. 26W (BOPHA)
B. 28/1430Z
C. 5.2N
D. 151.5E

E. THREE/MTSAT
F. T2.5/3.0/W0.5/24HRS
G. IR/EIR/SWIR/SCATT

H. REMARKS...REANALYSIS BASED ON 1136Z ASCAT...1401Z OSCAT...AND 1533Z
AMSU. SCATTEROMETER AND MICROWAVE DATA SHOW THE CENTER TO BE FARTHER
NORTH THAN PREVIOUSLY ANALYZED. FURTHERMORE MICROWAVE DATA REVEALED
ACTIVE DEEP CONVECTION WAS LIMITED TO THE SOUTHWEST QUADRANT LESS THAN
1.25 DEGREES TO THE SOUTHWEST OF THE CENTER. THIS RESULTS IN A DT OF
2.0 USING SHEAR PATTERN. MET AGREES WHILE PT IS 2.5. FT IS BASED ON PT.


I. ADDL POSITIONS

28/1136Z 5.1N 152.3E SCATT
28/1401Z 5.2N 151.5E SCATT

...TURK
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Re: WPAC: BOPHA - Tropical Storm

#166 Postby cycloneye » Wed Nov 28, 2012 3:20 pm

:uarrow: Interesting information there. That may indicate NE shear blasting the convection away,something that was not expected.
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Re: WPAC: BOPHA - Tropical Storm

#167 Postby supercane4867 » Wed Nov 28, 2012 3:24 pm

ClarkEligue wrote: REMARKS...REANALYSIS BASED ON 1136Z ASCAT...1401Z OSCAT...AND 1533Z
AMSU. SCATTEROMETER AND MICROWAVE DATA SHOW THE CENTER TO BE FARTHER
NORTH THAN PREVIOUSLY ANALYZED. FURTHERMORE MICROWAVE DATA REVEALED
ACTIVE DEEP CONVECTION WAS LIMITED TO THE SOUTHWEST QUADRANT LESS THAN
1.25 DEGREES TO THE SOUTHWEST OF THE CENTER. THIS RESULTS IN A DT OF
2.0 USING SHEAR PATTERN. MET AGREES WHILE PT IS 2.5. FT IS BASED ON PT.



Wow, Bopha is really in trouble :eek:
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Re: WPAC: BOPHA - Tropical Storm

#168 Postby ManilaTC » Wed Nov 28, 2012 3:29 pm

Darn, reanalysis may be too late, JTWC may have also bitten the WSW bug...

From RAMMB -- 201211281800 4.4N 150.7E 55kt...

They might reconsider though and make a correction before they release Warning #13
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Re: WPAC: BOPHA - Tropical Storm

#169 Postby cycloneye » Wed Nov 28, 2012 3:51 pm

ClarkEligue wrote:Darn, reanalysis may be too late, JTWC may have also bitten the WSW bug...

From RAMMB -- 201211281800 4.4N 150.7E 55kt...

They might reconsider though and make a correction before they release Warning #13


They didn't change the position nor intensity.


WTPN31 PGTW 282100
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TROPICAL STORM 26W (BOPHA) WARNING NR 013
01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
281800Z --- NEAR 4.4N 150.7E
MOVEMENT PAST SIX HOURS - 255 DEGREES AT 12 KTS
POSITION ACCURATE TO WITHIN 040 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 050 KT WINDS - 025 NM NORTHEAST QUADRANT
025 NM SOUTHEAST QUADRANT
025 NM SOUTHWEST QUADRANT
025 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 055 NM NORTHEAST QUADRANT
050 NM SOUTHEAST QUADRANT
050 NM SOUTHWEST QUADRANT
055 NM NORTHWEST QUADRANT
REPEAT POSIT: 4.4N 150.7E
---
FORECASTS:
12 HRS, VALID AT:
290600Z --- 4.5N 148.6E
MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT
030 NM SOUTHEAST QUADRANT
030 NM SOUTHWEST QUADRANT
030 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 065 NM NORTHEAST QUADRANT
060 NM SOUTHEAST QUADRANT
060 NM SOUTHWEST QUADRANT
065 NM NORTHWEST QUADRANT
VECTOR TO 24 HR POSIT: 275 DEG/ 11 KTS
---
24 HRS, VALID AT:
291800Z --- 4.7N 146.5E
MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT
035 NM SOUTHEAST QUADRANT
035 NM SOUTHWEST QUADRANT
035 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT
075 NM SOUTHEAST QUADRANT
075 NM SOUTHWEST QUADRANT
080 NM NORTHWEST QUADRANT
VECTOR TO 36 HR POSIT: 280 DEG/ 11 KTS
---
36 HRS, VALID AT:
300600Z --- 5.1N 144.4E
MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT
025 NM SOUTHEAST QUADRANT
025 NM SOUTHWEST QUADRANT
025 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 045 NM NORTHEAST QUADRANT
045 NM SOUTHEAST QUADRANT
045 NM SOUTHWEST QUADRANT
045 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 095 NM NORTHEAST QUADRANT
085 NM SOUTHEAST QUADRANT
085 NM SOUTHWEST QUADRANT
095 NM NORTHWEST QUADRANT
VECTOR TO 48 HR POSIT: 285 DEG/ 11 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
301800Z --- 5.6N 142.3E
MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT
030 NM SOUTHEAST QUADRANT
030 NM SOUTHWEST QUADRANT
030 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT
050 NM SOUTHEAST QUADRANT
050 NM SOUTHWEST QUADRANT
050 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 105 NM NORTHEAST QUADRANT
095 NM SOUTHEAST QUADRANT
095 NM SOUTHWEST QUADRANT
105 NM NORTHWEST QUADRANT
VECTOR TO 72 HR POSIT: 290 DEG/ 10 KTS
---
72 HRS, VALID AT:
011800Z --- 6.8N 138.5E
MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT
035 NM SOUTHEAST QUADRANT
035 NM SOUTHWEST QUADRANT
035 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 060 NM NORTHEAST QUADRANT
055 NM SOUTHEAST QUADRANT
055 NM SOUTHWEST QUADRANT
060 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 115 NM NORTHEAST QUADRANT
105 NM SOUTHEAST QUADRANT
105 NM SOUTHWEST QUADRANT
115 NM NORTHWEST QUADRANT
VECTOR TO 96 HR POSIT: 295 DEG/ 10 KTS
---
LONG RANGE OUTLOOK:
---
96 HRS, VALID AT:
021800Z --- 8.4N 134.9E
MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 120 HR POSIT: 295 DEG/ 10 KTS
---
120 HRS, VALID AT:
031800Z --- 10.2N 131.1E
MAX SUSTAINED WINDS - 110 KT, GUSTS 135 KT
WIND RADII VALID OVER OPEN WATER ONLY
---
REMARKS:
282100Z POSITION NEAR 4.4N 150.2E.
TROPICAL STORM 26W (BOPHA), LOCATED APPROXIMATELY 980 NM EAST OF
KOROR, HAS TRACKED WEST-SOUTHWESTWARD AT 12 KNOTS OVER THE PAST
SIX HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 281800Z IS 18 FEET.
NEXT WARNINGS AT 290300Z, 290900Z, 291500Z AND 292100Z.//
NNNN

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Re: WPAC: BOPHA - Tropical Storm

#170 Postby supercane4867 » Wed Nov 28, 2012 3:58 pm

New center position, not looking good

Image
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Re: WPAC: BOPHA - Tropical Storm

#171 Postby supercane4867 » Wed Nov 28, 2012 6:30 pm

ADT says Bopha is now a 77kt typhoon, certainly doesn't look like one

UW - CIMSS
ADVANCED DVORAK TECHNIQUE
ADT-Version 8.1.3
Tropical Cyclone Intensity Algorithm

----- Current Analysis -----
Date : 28 NOV 2012 Time : 223000 UTC
Lat : 4:24:31 N Lon : 149:56:24 E


CI# /Pressure/ Vmax
4.5 / 983.8mb/ 77.0kt



Final T# Adj T# Raw T#
4.5 4.5 3.4

Center Temp : -52.9C Cloud Region Temp : -62.5C

Scene Type : UNIFORM CDO CLOUD REGION w/ MW EYE

The center is repositioned to the south again
Image
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Re: WPAC: BOPHA - Tropical Storm

#172 Postby cycloneye » Wed Nov 28, 2012 7:08 pm

:uarrow: Oh please ADT! I would like to see a recent microwave to see how is the structure.
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Re: WPAC: BOPHA - Tropical Storm

#173 Postby dexterlabio » Wed Nov 28, 2012 7:40 pm

Latest prognostics from JTWC

WDPN31 PGTW 282100
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/PROGNOSTIC REASONING FOR TROPICAL STORM 26W (BOPHA) WARNING NR
13//
RMKS//
1. FOR METEOROLOGISTS.
2. 6 HOUR SUMMARY AND ANALYSIS.
TROPICAL STORM (TS) 26W (BOPHA), LOCATED APPROXIMATELY 980 NM
EAST OF KOROR, HAS TRACKED WEST-SOUTHWESTWARD AT 12 KNOTS OVER THE
PAST SIX HOURS. ANIMATED INFRARED SATELLITE IMAGERY AND A 281733Z
SSMI IMAGE INDICATE A SLOWLY-CONSOLIDATING LOW-LEVEL CIRCULATION
CENTER (LLCC) WITH IMPROVED DEEP CONVECTIVE BANDING WRAPPING TIGHTLY
INTO A DEFINED BUT SLIGHTLY ELONGATED LLCC. THERE IS GOOD CONFIDENCE
IN THE INITIAL POSITION BASED ON A 281533Z AMSU IMAGE AND A 281716Z
SSMI IMAGE. DESPITE THE IMPROVED ORGANIZATION, THE INITIAL INTENSITY
REMAINS ASSESSED AT 55 KNOTS BASED ON THE HIGH END OF DVORAK
ESTIMATES RANGING FROM 45 TO 55 KNOTS. UPPER-LEVEL ANALYSIS
INDICATES THAT THE SYSTEM HAS MAINTAINED VIGOROUS POLEWARD OUTFLOW;
HOWEVER, EQUATORWARD OUTFLOW HAS WEAKENED POSSIBLY DUE TO THE
DEVELOPMENT OF A WEAK UPPER-LOW OVER THE LLCC. TS 26W HAS TRACKED
WEST-SOUTHWESTWARD UNDER THE STEERING INFLUENCE OF THE DEEP
SUBTROPICAL RIDGE (STR) POSITIONED TO THE NORTH.
3. FORECAST REASONING.
A. NO CHANGE TO THE FORECAST PHILOSOPHY SINCE THE PREVIOUS
PROGNOSTIC REASONING MESSAGE.
B. TS 26W IS FORECAST TO TRACK WESTWARD THROUGH TAU 24 THEN
SHOULD TURN WEST-NORTHWESTWARD AS IT TRACKS ALONG THE SOUTHWESTERN
PERIPHERY OF THE EASTERN STR. DYNAMIC MODEL GUIDANCE IS IN VERY
TIGHT AGREEMENT WITH A 86 NM SPREAD IN SOLUTIONS AT TAU 72.
ADDITIONALLY, MODEL GUIDANCE HAS BEEN STABLE OVER THE PAST DAY.
C. IN THE EXTENDED TAUS, TS 26W IS EXPECTED TO TRACK WEST-
NORTHWESTWARD TOWARD A BREAK IN THE STR, WHICH IS POSITIONED BETWEEN
THE EASTERN STR AND WESTERN STR. INCREASED POLEWARD OUTFLOW AND
FAVORABLE SST WILL ALLOW TS 26W TO CONTINUE INTENSIFYING TO A PEAK
INTENSITY NEAR 110 KNOTS. THE DYNAMIC MODELS REMAIN IN GOOD
AGREEMENT, THEREFORE, THERE IS HIGH CONFIDENCE IN THE JTWC FORECAST
TRACK.//
NNNN
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Re: WPAC: BOPHA - Tropical Storm

#174 Postby supercane4867 » Wed Nov 28, 2012 8:26 pm

supercane4867 wrote:CI# /Pressure/ Vmax
4.5 / 983.8mb/ 77.0kt


For comparison
28/2057 UTC 4.8N 150.4E T2.5/2.5 BOPHA -- West Pacific
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Re: WPAC: BOPHA - Tropical Storm

#175 Postby cycloneye » Wed Nov 28, 2012 8:41 pm

WTPQ50 RJTD 290000
RSMC TROPICAL CYCLONE ADVISORY
NAME TS 1224 BOPHA (1224)
ANALYSIS
PSTN 290000UTC 04.0N 150.0E FAIR
MOVE WSW 10KT
PRES 994HPA
MXWD 045KT
GUST 065KT
30KT 150NM
FORECAST
24HF 300000UTC 04.2N 146.0E 70NM 70%
MOVE W 10KT
PRES 980HPA
MXWD 055KT
GUST 080KT
48HF 010000UTC 05.5N 142.3E 110NM 70%
MOVE WNW 10KT
PRES 970HPA
MXWD 065KT
GUST 095KT
72HF 020000UTC 06.7N 138.5E 160NM 70%
MOVE WNW 10KT
PRES 965HPA
MXWD 070KT
GUST 100KT
96HF 030000UTC 08.0N 134.1E 200NM 70%
MOVE WNW 11KT
120HF 040000UTC 09.3N 129.2E 260NM 70%
MOVE WNW 13KT =


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Re: WPAC: BOPHA - Tropical Storm

#176 Postby dexterlabio » Wed Nov 28, 2012 8:54 pm

it won't develop as much if it will stay way below 5N latitude, it needs more energy from Coriolis and it could also be easily impacted by the shear. i think the real consolidation phase will only start when it moves more to the north...
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Re: WPAC: BOPHA - Tropical Storm

#177 Postby ManilaTC » Wed Nov 28, 2012 9:32 pm

WDPN31 PGTW 290300
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/PROGNOSTIC REASONING FOR TROPICAL STORM 26W (BOPHA) WARNING NR
14//
RMKS//
1. FOR METEOROLOGISTS.
2. 6 HOUR SUMMARY AND ANALYSIS.
TROPICAL STORM (TS) 26W (BOPHA), LOCATED APPROXIMATELY 920 NM
EAST OF PALAU, HAS TRACKED WEST-SOUTHWESTWARD AT 11 KNOTS OVER THE
PAST SIX HOURS. ANIMATED MULTISPECTRAL SATELLITE IMAGERY (MSI)
INDICATES THAT THE SYSTEM HAS BECOME LESS ORGANIZED OVER THE PAST
SIX HOURS. ANIMATED INFRARED SATELLITE IMAGERY DEPICTS WARMING CLOUD
TOPS, INDICATIVE OF THIS WEAKENING TREND, WITH THE BULK OF THE DEEP
CONVECTION CONFINED TO THE SOUTHERN SEMI-CIRCLE. DUE TO THE LACK OF
MICROWAVE IMAGERY, THE INITIAL POSITION IS BASED SOLELY ON MSI WITH
FAIR CONFIDENCE DUE TO THE OBSCURED LOW-LEVEL CIRCULATION CENTER
(LLCC). THE INITIAL INTENSITY REMAINS ASSESSED AT 55 KNOTS BASED ON
THE HIGH END OF DVORAK ESTIMATES RANGING FROM 35 TO 55 KNOTS. UPPER-
LEVEL ANALYSIS INDICATES THAT THE SYSTEM HAS MAINTAINED VIGOROUS
POLEWARD OUTFLOW; HOWEVER, EQUATORWARD OUTFLOW HAS WEAKENED POSSIBLY
DUE TO THE DEVELOPMENT OF A WEAK UPPER-LOW OVER THE LLCC. TS 26W HAS
TRACKED WEST-SOUTHWESTWARD UNDER THE STEERING INFLUENCE OF THE DEEP
SUBTROPICAL RIDGE (STR) POSITIONED TO THE NORTH.
3. FORECAST REASONING.
A. NO CHANGE TO THE FORECAST PHILOSOPHY SINCE THE PREVIOUS
PROGNOSTIC REASONING MESSAGE.
B. TS 26W IS FORECAST TO TRACK WESTWARD THROUGH TAU 24 THEN
SHOULD TURN WEST-NORTHWESTWARD AS IT TRACKS ALONG THE SOUTHWESTERN
PERIPHERY OF THE EASTERN STR. DYNAMIC MODEL GUIDANCE IS IN VERY
TIGHT AGREEMENT WITH A 95 NM SPREAD IN SOLUTIONS AT TAU 72.
ADDITIONALLY, MODEL GUIDANCE HAS BEEN STABLE OVER THE PAST DAY.
C. IN THE EXTENDED TAUS, TS 26W IS EXPECTED TO TRACK WEST-
NORTHWESTWARD TOWARD A BREAK IN THE STR, WHICH IS POSITIONED BETWEEN
THE EASTERN STR AND WESTERN STR. INCREASED POLEWARD OUTFLOW AND
FAVORABLE SST WILL ALLOW TS 26W TO CONTINUE INTENSIFYING TO A PEAK
INTENSITY NEAR 105 KNOTS. THE DYNAMIC MODELS REMAIN IN GOOD
AGREEMENT, THEREFORE, THERE IS HIGH CONFIDENCE IN THE JTWC FORECAST
TRACK.//
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greenkat
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#178 Postby greenkat » Wed Nov 28, 2012 9:47 pm

Will shear just rip it apart or will it hang on? that CoC doesn't look to be very favorable.
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Hope this helped ;)

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Re: WPAC: BOPHA - Tropical Storm

#179 Postby supercane4867 » Wed Nov 28, 2012 10:08 pm

JTWC adjusted the forecast intensity down to 105kts

WTPN31 PGTW 290300
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TROPICAL STORM 26W (BOPHA) WARNING NR 014
01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
290000Z --- NEAR 4.1N 149.6E
MOVEMENT PAST SIX HOURS - 255 DEGREES AT 11 KTS
POSITION ACCURATE TO WITHIN 060 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 050 KT WINDS - 025 NM NORTHEAST QUADRANT
025 NM SOUTHEAST QUADRANT
025 NM SOUTHWEST QUADRANT
025 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 055 NM NORTHEAST QUADRANT
050 NM SOUTHEAST QUADRANT
050 NM SOUTHWEST QUADRANT
055 NM NORTHWEST QUADRANT
REPEAT POSIT: 4.1N 149.6E
---
FORECASTS:
12 HRS, VALID AT:
291200Z --- 4.0N 147.6E
MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT
030 NM SOUTHEAST QUADRANT
030 NM SOUTHWEST QUADRANT
030 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 065 NM NORTHEAST QUADRANT
060 NM SOUTHEAST QUADRANT
060 NM SOUTHWEST QUADRANT
065 NM NORTHWEST QUADRANT
VECTOR TO 24 HR POSIT: 280 DEG/ 10 KTS
---
24 HRS, VALID AT:
300000Z --- 4.3N 145.6E
MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT
035 NM SOUTHEAST QUADRANT
035 NM SOUTHWEST QUADRANT
035 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT
075 NM SOUTHEAST QUADRANT
075 NM SOUTHWEST QUADRANT
080 NM NORTHWEST QUADRANT
VECTOR TO 36 HR POSIT: 285 DEG/ 10 KTS
---
36 HRS, VALID AT:
301200Z --- 4.8N 143.6E
MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT
025 NM SOUTHEAST QUADRANT
025 NM SOUTHWEST QUADRANT
025 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 045 NM NORTHEAST QUADRANT
045 NM SOUTHEAST QUADRANT
045 NM SOUTHWEST QUADRANT
045 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 095 NM NORTHEAST QUADRANT
085 NM SOUTHEAST QUADRANT
085 NM SOUTHWEST QUADRANT
095 NM NORTHWEST QUADRANT
VECTOR TO 48 HR POSIT: 285 DEG/ 11 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
010000Z --- 5.4N 141.4E
MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT
030 NM SOUTHEAST QUADRANT
030 NM SOUTHWEST QUADRANT
030 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT
050 NM SOUTHEAST QUADRANT
050 NM SOUTHWEST QUADRANT
050 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 105 NM NORTHEAST QUADRANT
095 NM SOUTHEAST QUADRANT
095 NM SOUTHWEST QUADRANT
105 NM NORTHWEST QUADRANT
VECTOR TO 72 HR POSIT: 290 DEG/ 11 KTS
---
72 HRS, VALID AT:
020000Z --- 6.8N 137.3E
MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT
035 NM SOUTHEAST QUADRANT
035 NM SOUTHWEST QUADRANT
035 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 060 NM NORTHEAST QUADRANT
055 NM SOUTHEAST QUADRANT
055 NM SOUTHWEST QUADRANT
060 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 115 NM NORTHEAST QUADRANT
105 NM SOUTHEAST QUADRANT
105 NM SOUTHWEST QUADRANT
115 NM NORTHWEST QUADRANT
VECTOR TO 96 HR POSIT: 290 DEG/ 11 KTS
---
LONG RANGE OUTLOOK:
---
96 HRS, VALID AT:
030000Z --- 8.4N 133.2E
MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 120 HR POSIT: 295 DEG/ 10 KTS
---
120 HRS, VALID AT:
040000Z --- 10.0N 129.3E
MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT
WIND RADII VALID OVER OPEN WATER ONLY
---
REMARKS:
290300Z POSITION NEAR 4.1N 149.1E.
TROPICAL STORM 26W (BOPHA), LOCATED APPROXIMATELY 920 NM EAST OF
PALAU, HAS TRACKED WEST-SOUTHWESTWARD AT 11 KNOTS OVER THE PAST
SIX HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 290000Z IS 19 FEET.
NEXT WARNINGS AT 290900Z, 291500Z, 292100Z AND 300300Z.//
NNNN

Image
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euro6208
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Re: WPAC: BOPHA - Tropical Storm

#180 Postby euro6208 » Wed Nov 28, 2012 10:11 pm

000
WTPQ31 PGUM 290305
TCPPQ1

BULLETIN
TROPICAL STORM BOPHA (26W) ADVISORY NUMBER 14
NATIONAL WEATHER SERVICE TIYAN GU WP262012
200 PM CHST THU NOV 29 2012

...TROPICAL STORM BOPHA (26W) MAINTAINING INTENSITY...

THE TROPICAL STORM WARNING FOR SATAWAL IN YAP STATE HAS BEEN
CANCELLED.

A TYPHOON WATCH REMAINS IN EFFECT FOR WOLEAI IN YAP STATE.

A TROPICAL STORM WATCH REMAINS IN EFFECT FOR FARAULEP IN YAP STATE.

A TROPICAL STORM WARNING MEANS TROPICAL STORM CONDITIONS...INCLUDING
DAMAGING WINDS OF 39 TO 73 MPH...ARE EXPECTED WITHIN 24 HOURS.

A TYPHOON WATCH MEANS THAT TYPHOON CONDITIONS INCLUDING SUSTAINED
WINDS GREATER THAN 73 MPH ARE POSSIBLE WITHIN 48 HOURS.

A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS...
INCLUDING DAMAGING WINDS OF 39 TO 73 MPH...ARE POSSIBLE WITHIN 48
HOURS.

AT 100 PM CHST...0300Z...THE CENTER OF TROPICAL STORM BOPHA WAS
LOCATED NEAR LATITUDE 4.1 DEGREES NORTH AND LONGITUDE 149.1 DEGREES
EAST.

THIS IS ABOUT 300 MILES SOUTHWEST OF WENO ISLAND CHUUK
440 MILES SOUTHEAST OF FARAULEP
425 MILES EAST-SOUTHEAST OF WOLEAI
840 MILES EAST-SOUTHEAST OF YAP AND
1035 MILES EAST-SOUTHEAST OF KOROR PALAU.

TROPICAL STORM BOPHA IS MOVING WEST-SOUTHWEST AT 13 MPH. A GENERAL
WESTWARD MOTION WITH A TURN TO THE WEST-NORTHWEST IS EXPECTED
THROUGH FRIDAY. LITTLE CHANGE IN FORWARD SPEED IS EXPECTED.

MAXIMUM SUSTAINED WINDS ARE 65 MPH. TROPICAL STORM BOPHA IS EXPECTED
TO MAINTAIN THIS INTENSITY THROUGH TONIGHT THEN SLOWLY INTENSIFY
FRIDAY. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 65 MILES
FROM THE CENTER.

REPEATING THE 100 PM POSITION...4.1 DEGREES NORTH LATITUDE AND 149.1
DEGREES EAST LONGITUDE...MOVING WEST-SOUTHWEST AT 13 MPH WITH
MAXIMUM SUSTAINED WINDS OF 65 MPH.

AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL WEATHER
SERVICE AT 500 PM CHST LATER THIS AFTERNOON FOLLOWED BY THE NEXT
SCHEDULED ADVISORY AT 800 PM THIS EVENING.

$$

WILLIAMS
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