SPO: TROPICAL CYCLONE TOMAS (14F/19P)

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HURAKAN
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#21 Postby HURAKAN » Thu Mar 11, 2010 10:58 am

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SUBJ: TROPICAL CYCLONE 19P (NINETEEN) WARNING NR 001
REF/A/NAVMARFCSTCEN/102230Z MAR 10//
AMPN/TROPICAL CYCLONE FORMATION ALERT//
WTPS32 PGTW 111500
1. TROPICAL CYCLONE 19P (NINETEEN) WARNING NR 001
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
111200Z --- NEAR 11.0S 175.3W
MOVEMENT PAST SIX HOURS - 270 DEGREES AT 07 KTS
POSITION ACCURATE TO WITHIN 060 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
WIND RADII VALID OVER OPEN WATER ONLY
REPEAT POSIT: 11.0S 175.3W
---
FORECASTS:
12 HRS, VALID AT:
120000Z --- 11.1S 176.7W
MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS - 025 NM NORTHEAST QUADRANT
025 NM SOUTHEAST QUADRANT
025 NM SOUTHWEST QUADRANT
030 NM NORTHWEST QUADRANT
VECTOR TO 24 HR POSIT: 245 DEG/ 07 KTS
---
24 HRS, VALID AT:
121200Z --- 11.7S 177.9W
MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 050 KT WINDS - 020 NM NORTHEAST QUADRANT
020 NM SOUTHEAST QUADRANT
020 NM SOUTHWEST QUADRANT
020 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 030 NM NORTHEAST QUADRANT
035 NM SOUTHEAST QUADRANT
035 NM SOUTHWEST QUADRANT
035 NM NORTHWEST QUADRANT
VECTOR TO 36 HR POSIT: 225 DEG/ 07 KTS
---
36 HRS, VALID AT:
130000Z --- 12.6S 178.9W
MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 020 NM NORTHEAST QUADRANT
020 NM SOUTHEAST QUADRANT
015 NM SOUTHWEST QUADRANT
015 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT
030 NM SOUTHEAST QUADRANT
025 NM SOUTHWEST QUADRANT
025 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 050 NM NORTHEAST QUADRANT
055 NM SOUTHEAST QUADRANT
055 NM SOUTHWEST QUADRANT
050 NM NORTHWEST QUADRANT
VECTOR TO 48 HR POSIT: 205 DEG/ 07 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
131200Z --- 13.8S 179.5W
MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT
025 NM SOUTHEAST QUADRANT
020 NM SOUTHWEST QUADRANT
025 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 040 NM NORTHEAST QUADRANT
035 NM SOUTHEAST QUADRANT
035 NM SOUTHWEST QUADRANT
040 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT
060 NM SOUTHEAST QUADRANT
060 NM SOUTHWEST QUADRANT
070 NM NORTHWEST QUADRANT
VECTOR TO 72 HR POSIT: 190 DEG/ 08 KTS
---
72 HRS, VALID AT:
141200Z --- 17.0S 180.0E
MAX SUSTAINED WINDS - 105 KT, GUSTS 130 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
040 NM SOUTHEAST QUADRANT
045 NM SOUTHWEST QUADRANT
050 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 085 NM NORTHEAST QUADRANT
075 NM SOUTHEAST QUADRANT
075 NM SOUTHWEST QUADRANT
085 NM NORTHWEST QUADRANT
VECTOR TO 96 HR POSIT: 160 DEG/ 11 KTS
---
LONG RANGE OUTLOOK:
NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 250 NM
ON DAY 4 AND 350 NM ON DAY 5... AND FOR INTENSITY
NEAR 20 KT EACH DAY.
---
96 HRS, VALID AT:
151200Z --- 21.3S 178.4W
MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 120 HR POSIT: 150 DEG/ 21 KTS
---
120 HRS, VALID AT:
161200Z --- 28.5S 173.4W
MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT
WIND RADII VALID OVER OPEN WATER ONLY
BECOMING EXTRATROPICAL
---
REMARKS:
111500Z POSITION NEAR 11.0S 175.6W.

THIS WARNING SUPERSEDES AND CANCELS REF A, NAVMARFCSTCEN 102230Z
MAR 10 TROPICAL CYCLONE FORMATION ALERT (WTPS22 PGTW 102230 )
MAXIMUM SIGNIFICANT WAVE HEIGHT AT 111200Z IS 11 FEET.
NEXT WARNINGS AT 120300Z AND 121500Z.
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#22 Postby KWT » Thu Mar 11, 2010 12:22 pm

ECM 0z run was very keen on this system it has to be said and so this one needs very close watching, esp if those islands (what are they btw?) get struck by the system as it becomes quite potent. ECM has a direct hit in about 96hrs which is plenty of time for it to become really intense...
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Re: SPO : TROPICAL DEPRESSION 14F (19P)

#23 Postby Sheronz » Thu Mar 11, 2010 12:50 pm

Image

REMARKS:
111500Z POSITION NEAR 11.0S 175.6W.
TROPICAL CYCLONE (TC) 19P (NINETEEN), LOCATED APPROXIMATELY 340 NM
NORTHWEST OF PAGO PAGO, HAS TRACKED WESTWARD AT 07 KNOTS OVER THE
PAST SIX HOURS. ANIMATED INFRARED SATELLITE IMAGERY DEPICTS
INCREASED CONVECTIVE BANDING AROUND A DEVELOPING LOW LEVEL
CIRCULATION CENTER (LLCC) AND A 110655Z ASCAT PASS REVEALS A BAND OF
30-KNOT WINDS IN THE NORTHERN SEMI-CIRCLE THAT IS STARTING TO WRAP
INTO THE SYSTEM CENTER. ENVIRONMENTAL ANALYSIS INDICATES THE SYSTEM
HAS A POINT-SOURCE ALOFT WITH WEAK VERTICAL WIND SHEAR AND STRONG
EQUATORWARD OUTFLOW. ADDITIONALLY, AN UPPER-LEVEL TROUGH SOUTHWEST
OF THE SYSTEM HAS HELPED POLEWARD OUTFLOW THOUGH IT HAS ALSO
SUPPRESSED DEEP CONVECTION IN THE SOUTHERN SEMI-CIRCLE. CURRENT
POSITION AND INTENSITY ESTIMATES ARE BASED ON DVORAK FIXES FROM
PGTW, PHFO AND NFFN. THROUGHOUT THE FORECAST PERIOD, TC 19P WILL
CONTINUE TO TRACK ALONG THE PERIPHERY OF THE SUBTROPICAL STEERING
RIDGE LOCATED TO THE SOUTH-SOUTHWEST. BY TAU 36, A MID-LATITUDE
TROUGH IS EXPECTED TO BEGIN WEAKENING THE STEERING RIDGE, ENABLING
THE SYSTEM TO RE-CURVE AFTER TAU 72. BY TAU 120, TC 19P SHOULD START
TO INTERACT WITH THE MID-LATITUDE BAROCLINIC ZONE. AS FOR THE
INTENSITY FORECAST, TC 19P WILL STEADILY INTENSIFY OVER THE NEXT 72
HOURS DUE TO VERY GOOD OUTFLOW, LOW VERTICAL WIND SHEAR, AND
FAVORABLE OCEAN HEAT CONTENT VALUES. THE SYSTEM IS EXPECTED TO REACH
A MAXIMUM INTENSITY OF 105 KNOTS AS IT APPROACHES THE SUBTROPICAL
RIDGE AXIS AND THE POLEWARD OUTFLOW IS ENHANCED BY THE MID-LATITUDE
JETSTREAM. AFTER THE SYSTEM ROUNDS THE RIDGE AXIS, IT WILL START TO
WEAKEN AS IT ENCOUNTERS COOLER SEA SURFACE TEMPERATURES AND
INCREASINGLY UNFAVORABLE VERTICAL WIND SHEAR. THE NUMERICAL MODEL
GUIDANCE IS IN VERY GOOD AGREEMENT WITH A RE-CURVE SCENARIO. THIS
WARNING SUPERSEDES AND CANCELS REF A (WTPS22 PGTW 102230). MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 111200Z IS 11 FEET. NEXT WARNINGS AT
120300Z AND 121500Z.//
NNNN
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Re: SPO : TROPICAL CYCLONE NINETEEN (14F)

#24 Postby Sheronz » Thu Mar 11, 2010 3:06 pm

Image

TROPICAL DISTURBANCE ADVISORY NUMBER A5 ISSUED FROM RSMC NADI
Mar 11/1957 UTC 2010 UTC.

TROPICAL DEPRESSION 14F CENTRE 999 HPA WAS LOCATED NEAR 10.7S 176.0W
AT 111800 UTC. POSITION POOR BASED ON HR GMS/GOES EIR IMAGERY WITH
ANIMATION. DEPRESSION MOVING WEST SOUTHWEST AT ABOUT 6 KNOTS.
MAXIMUM 10-MINUTE AVERAGE WINDS NEAR THE CENTRE ESTIMATED AT ABOUT 30
KNOTS.

ORGANISATION HAS IMPROVED PAST 24 HRS. THE SYSTEM LIES OVER A WEAKLY
SHEARED AND DIFFLUENT ENVIROMENT. SST 30C. SYSTEM STEERED
WEST-SOUTHWEST BY NORTHEAST DEEP LAYER MEAN FLOW. DVORAK ANALYSIS
BASED ON 0.5 WRAP ON LOG10 SPIRAL YIELDING DT=2.5. MET AND PT AGREE,
THUS T2.5/2.5/D1.0/24HRS. GLOBAL MODELS AGREE ON SOUTHWEST TRACK AND
INTENSIFICATION.

FORECASTS :
AT 12 HRS VALID AT 120600 UTC 11.1S 177.1W MOV WSW AT 06 KT WITH 35
KT CLOSE TO CENTRE

AT 24 HRS VALID AT 121800 UTC 11.7S 178.1W MOV SW AT 05 KT WITH 45 KT
CLOSE TO CENTRE

OUTLOOK :
AT 36 HRS VALID AT 130600 UTC 12.6S 179.0W MOV SW AT 07 KT WITH 50 KT
CLOSE TO CENTRE

AT 48 HRS VALID AT 131800 UTC 13.8S 179.9W MOV SW AT 07 KT WITH 65 KT
CLOSE TO CENTRE

THE NEXT TROPICAL DISTURBANCE ADVISORY ON TROPICAL DEPRESSION 14F
WILL BE ISSUED AT 110230 UTC OR EARLIER.
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#25 Postby HURAKAN » Thu Mar 11, 2010 4:47 pm

Name confusion:

This system is OFFICIALLY named Tropical Depression 14F because Fiji is the official ruling body in this part of the world. Tropical Cyclone 19P is used by the JTWC but it's completely unofficial.
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#26 Postby HURAKAN » Thu Mar 11, 2010 6:18 pm

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#27 Postby HURAKAN » Thu Mar 11, 2010 8:04 pm

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#28 Postby HURAKAN » Thu Mar 11, 2010 10:34 pm

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#29 Postby HURAKAN » Thu Mar 11, 2010 10:36 pm

TROPICAL DISTURBANCE ADVISORY NUMBER A6 ISSUED FROM RSMC NADI
Mar 12/0202 UTC 2010 UTC.

TROPICAL CYCLONE TOMAS 995 HPA WAS LOCATED NEAR 10.6S 176.3W AT
120000 UTC. POSITION POOR BASED ON HR GMS/GOES EIR/VIS IMAGERY WITH
ANIMATION. DEPRESSION MOVING WEST AT ABOUT 6 KNOTS. MAXIMUM
10-MINUTE AVERAGE WINDS NEAR THE CENTRE ESTIMATED AT ABOUT 35 KNOTS.

ORGANISATION HAS IMPROVED PAST 12 HRS. THE SYSTEM LIES OVER A WEAKLY
SHEARED AND DIFFLUENT ENVIROMENT. SST 30C. SYSTEM STEERED
WEST-SOUTHWEST BY NORTHEAST DEEP LAYER MEAN FLOW. DVORAK ANALYSIS
BASED ON 0.6 WRAP ON LOG10 SPIRAL YIELDING DT=3.0. MET AND PT AGREE,
THUS T3.0/3.0/D1.0/24HRS. GLOBAL MODELS AGREE ON SOUTHWEST TRACK AND
INTENSIFICATION.

FORECASTS :
AT 12 HRS VALID AT 121200 UTC 11.1S 177.4W MOV WSW AT 06 KT WITH 45
KT CLOSE TO CENTRE

AT 24 HRS VALID AT 130000 UTC 11.9S 178.2W MOV SW AT 06 KT WITH 55 KT
CLOSE TO CENTRE

OUTLOOK :
AT 36 HRS VALID AT 131200 UTC 13.0S 179.1W MOV SW AT 07 KT WITH 65 KT
CLOSE TO CENTRE

AT 48 HRS VALID AT 140000 UTC 14.3S 179.7W MOV SSW AT 07 KT WITH 75
KT CLOSE TO CENTRE

THE NEXT TROPICAL DISTURBANCE ADVISORY ON TOMAS WILL BE ISSUED AT
120830 UTC OR EARLIER.
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Re: SPO : TROPICAL CYCLONE TOMAS (19P)

#30 Postby Sheronz » Thu Mar 11, 2010 11:14 pm

Image

Image

WTPS32 PGTW 120300
MSGID/GENADMIN/NAVMARFCSTCEN PEARL HARBOR HI/JTWC//
SUBJ/TROPICAL CYCLONE 19P (NINETEEN) WARNING NR 002//
RMKS/
1. TROPICAL CYCLONE 19P (NINETEEN) WARNING NR 002
02 ACTIVE TROPICAL CYCLONES IN SOUTHPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
120000Z --- NEAR 10.6S 177.2W
MOVEMENT PAST SIX HOURS - 260 DEGREES AT 07 KTS
POSITION ACCURATE TO WITHIN 060 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
WIND RADII VALID OVER OPEN WATER ONLY
REPEAT POSIT: 10.6S 177.2W
---
FORECASTS:
12 HRS, VALID AT:
121200Z --- 11.0S 178.1W
MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS - 025 NM NORTHEAST QUADRANT
025 NM SOUTHEAST QUADRANT
025 NM SOUTHWEST QUADRANT
030 NM NORTHWEST QUADRANT
VECTOR TO 24 HR POSIT: 235 DEG/ 05 KTS
---
24 HRS, VALID AT:
130000Z --- 11.5S 178.9W
MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 050 KT WINDS - 020 NM NORTHEAST QUADRANT
020 NM SOUTHEAST QUADRANT
020 NM SOUTHWEST QUADRANT
020 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 030 NM NORTHEAST QUADRANT
035 NM SOUTHEAST QUADRANT
035 NM SOUTHWEST QUADRANT
035 NM NORTHWEST QUADRANT
VECTOR TO 36 HR POSIT: 220 DEG/ 05 KTS
---
36 HRS, VALID AT:
131200Z --- 12.3S 179.6W
MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 020 NM NORTHEAST QUADRANT
020 NM SOUTHEAST QUADRANT
015 NM SOUTHWEST QUADRANT
015 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT
030 NM SOUTHEAST QUADRANT
025 NM SOUTHWEST QUADRANT
025 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 050 NM NORTHEAST QUADRANT
055 NM SOUTHEAST QUADRANT
055 NM SOUTHWEST QUADRANT
050 NM NORTHWEST QUADRANT
VECTOR TO 48 HR POSIT: 210 DEG/ 06 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
140000Z --- 13.4S 179.7E
MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT
025 NM SOUTHEAST QUADRANT
020 NM SOUTHWEST QUADRANT
025 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 040 NM NORTHEAST QUADRANT
035 NM SOUTHEAST QUADRANT
035 NM SOUTHWEST QUADRANT
040 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT
060 NM SOUTHEAST QUADRANT
060 NM SOUTHWEST QUADRANT
070 NM NORTHWEST QUADRANT
VECTOR TO 72 HR POSIT: 190 DEG/ 07 KTS
---
72 HRS, VALID AT:
150000Z --- 16.1S 179.1E
MAX SUSTAINED WINDS - 110 KT, GUSTS 135 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
040 NM SOUTHEAST QUADRANT
045 NM SOUTHWEST QUADRANT
050 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 085 NM NORTHEAST QUADRANT
075 NM SOUTHEAST QUADRANT
075 NM SOUTHWEST QUADRANT
085 NM NORTHWEST QUADRANT
VECTOR TO 96 HR POSIT: 165 DEG/ 11 KTS
---
LONG RANGE OUTLOOK:
NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 250 NM
ON DAY 4 AND 350 NM ON DAY 5... AND FOR INTENSITY
NEAR 20 KT EACH DAY.
---
96 HRS, VALID AT:
160000Z --- 20.2S 179.6W
MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 120 HR POSIT: 150 DEG/ 15 KTS
---
120 HRS, VALID AT:
170000Z --- 25.5S 176.5W
MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT
WIND RADII VALID OVER OPEN WATER ONLY
---
REMARKS:
120300Z POSITION NEAR 10.7S 177.4W.
TROPICAL CYCLONE (TC) 19P (NINETEEN), LOCATED APPROXIMATELY 485 NM
WEST-NORTHWEST OF PAGO PAGO, HAS TRACKED WESTWARD AT 07 KNOTS OVER
THE PAST SIX HOURS. RECENT ANIMATED MULTISPECTRAL SATELLITE IMAGERY
INDICATES A STRENGTHENING LOW LEVEL CIRCULATION CENTER BENEATH
BUDDING CENTRAL CONVECTION. CONVECTIVE BANDING HAS IMPROVED IN
NEARLY ALL QUADRANTS OF THE CIRCULATION, THOUGH DEEP CONVECTION IS
STILL LIMITED WITHIN THE SOUTHERN SEMICIRCLE. THE INITIAL INTENSITY
IS BASED ON DVORAK INTENSITY ESTIMATES FROM PGTW AND KNES, WHICH
BOTH INDICATE A 35 KNOT SYSTEM. NFFN IS ASSESSING THE INTENSITY
SLIGHTLY HIGHER AT 40 KNOTS. THE CYCLONE IS FORECAST TO CONTINUE TO
TRACK ALONG THE NORTHWESTERN PERIPHERY OF A STEERING RIDGE TO THE
SOUTHEAST. THE TRACK WILL BEND TOWARDS FIJI AS A MID-LATITUDE TROUGH
DEEPENS EQUATORWARD AND WEAKENS THE STEERING RIDGE. BEYOND FIJI THE
CYCLONE WILL BEGIN TO ACCELERATE WITH THE TROUGH TOWARDS THE MID-
LATITUDES. THE INTENSITY FORECAST CALLS FOR STEADY INTENSIFICATION
THROUGH TAU 72. SEA SURFACE TEMPERATURES HOVERING NEAR 30C AND
STRONG RADIAL OUTFLOW ALOFT SHOULD SUPPORT THIS INTENSIFICATION. THE
CYCLONE SHOULD BEGIN TO WEAKEN THEREAFTER DUE TO INCREASED VERTICAL
WIND SHEAR AND MARGINAL SEA SURFACE TEMPERATURES/OCEAN HEAT CONTENT.
THE MODEL CONSENSUS HAS SLOWED SINCE THE PREVIOUS FORECAST IN
RESPONSE TO THE ADDITION OF THE ECMWF TRACKER TO THE CONSENSUS
(WHICH IS NOW THE SLOWEST MEMBER AVAILABLE) AND A SLOWER GFS RUN.
EGRR REMAINS MUCH FASTER THAN THE REST OF THE MODEL PACKING. THE
OFFICIAL FORECAST HAS BEEN SLOWED TO REFLECT THE CONSENSUS. BECAUSE
THE FORECAST HAS BEEN SLOWED EXTRATROPICAL TRANSITION HAS BEEN
DELAYED. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 120000Z IS 11 FEET. NEXT
WARNINGS AT 121500Z AND 130300Z. REFER TO TROPICAL CYCLONE 20P
(TWENTY) WARNINGS (WTPS32 PGTW) FOR TWELVE-HOURLY UPDATES.//
NNNN
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#31 Postby Sheronz » Thu Mar 11, 2010 11:35 pm

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#32 Postby KWT » Fri Mar 12, 2010 7:15 am

Ouch, that JWTC forecast of it hitting the Fiji islands at 110kts. Even the capital would take a decent swipe at if that came off with a cyclone of that strength...

Hopefully it either tracks somewhat further east or doesn't strengthen quite so much as that!
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#33 Postby HURAKAN » Fri Mar 12, 2010 8:52 am

TROPICAL DISTURBANCE ADVISORY NUMBER A7 ISSUED FROM RSMC NADI
Mar 12/0825 UTC 2010 UTC.

TROPICAL CYCLONE TOMAS 990 HPA WAS LOCATED NEAR 11.2S 176.5W AT
120600 UTC. POSITION POOR BASED ON HR GMS/GOES EIR/VIS IMAGERY WITH
ANIMATION. DEPRESSION MOVING WEST AT ABOUT 6 KNOTS AND EXPECTED TO
GRADUALLY TURN SOUTHWEST. MAXIMUM 10-MINUTE AVERAGE WINDS NEAR THE
CENTRE ESTIMATED AT ABOUT 40 KNOTS INCREASING TO 50 KNOTS IN THE NEXT
12 HOURS. EXPECTED WINDS ABOVE 33 KNOTS WITHIN 150NM OF CENTRE.

ORGANISATION STEADILY IMPROVING. PRIMARY BANDS CONSOLIDATING AND
WRAPPING TIGHTLY AROUND LLCC. THE SYSTEM LIES OVER A WEAKLY SHEARED
AND DIFFLUENT ENVIROMENT. OUTFLOW GOOD TO EAST AND NORTH AND
DEVELOPING ELSEWHERE. SST 30C. SYSTEM STEERED WEST-SOUTHWEST BY
NORTHEAST DEEP LAYER MEAN FLOW. DVORAK ANALYSIS BASED ON 0.7 WRAP ON
LOG10 SPIRAL YIELDING DT=3.0. MET AND PT AGREE, THUS
T3.0/3.0/D1.0/24HRS. GLOBAL MODELS AGREE ON SOUTHWEST TRACK AND
INTENSIFICATION.

FORECASTS :
AT 12 HRS VALID AT 121800UTC 11.7S 177.3W MOV WSW AT 06 KT WITH 50 KT
CLOSE TO CENTRE.

AT 24 HRS VALID AT 130600 UTC 12.6S 178.1W MOV SW AT 06 KT WITH 60 KT
CLOSE TO CENTRE.

OUTLOOK :
AT 36 HRS VALID AT 131800 UTC 13.8S 178.8W MOV SW AT 07 KT WITH 65 KT
CLOSE TO CENTRE.

AT 48 HRS VALID AT 140600 UTC 15.1S 179.3W MOV SSW AT 07 KT WITH 75
KT CLOSE TO CENTRE.

THE NEXT TROPICAL DISTURBANCE ADVISORY ON TOMAS WILL BE ISSUED AT
121430 UTC OR EARLIER.
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#34 Postby HURAKAN » Fri Mar 12, 2010 8:53 am

STORM WARNING 010 ISSUED FROM RSMC NADI Mar 12/1302 UTC 2010 UTC.

TROPICAL CYCLONE TOMAS CENTRE 985HPA CATEGORY 2 WAS LOCATED NEAR 11.6
SOUTH 177.6 WEST AT 121200 UTC.
POSITION POOR.
REPEAT POSITION 11.6S 177.6W AT 121200 UTC.
CYCLONE MOVING SOUTHWEST AT 8 KNOTS.
EXPECT SUSTAINED WINDS OF 50 KNOTS CLOSE TO THE CENTRE INCREASING TO
60 KNOTS IN THE NEXT 12 TO 24 HOURS.
EXPECT WINDS OVER 47 KNOTS WITHIN 50 NAUTICAL MILES OF THE CENTRE.
EXPECT WINDS OVER 33 KNOTS WITHIN 150 NAUTICAL MILES OF THE CENTRE.

FORECAST POSITION NEAR 12.4S 178.3W AT 130000 UTC
AND NEAR 13.2S 179.0W AT 131200 UTC.

ALL VESSELS WITHIN 300 NAUTICALS MILES OF THE CENTRE ARE REQUESTED TO
SEND REPORTS EVERY THREE HOURS TO RSMC NADI. VOS REPORTING SHIPS USE
NORMAL CHANNELS. OTHER VESSELS FAX PLUS 679 6720190 OR EMAIL NADITCC
AT MET DOT GOV DOT FJ.

THIS WARNING CANCELS AND REPLACES WARNING 008.
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#35 Postby HURAKAN » Fri Mar 12, 2010 9:45 am

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#36 Postby senorpepr » Fri Mar 12, 2010 10:12 am

WTPS11 NFFN 121200
TROPICAL DISTURBANCE ADVISORY NUMBER A8 ISSUED FROM RSMC NADI
Mar 12/1428 UTC 2010 UTC.

TROPICAL CYCLONE TOMAS 985 HPA WAS LOCATED NEAR 11.6S 177.6W AT
121200 UTC. POSITION POOR BASED ON HR GMS/GOES EIR IMAGERY WITH
ANIMATION. DEPRESSION MOVING SOUTHWEST AT ABOUT 8 KNOTS. MAXIMUM
10-MINUTE AVERAGE WINDS NEAR THE CENTRE OF 50 KNOTS EXPECT SUSTAINED
WINDS OF 50 KNOTS CLOSE TO THE CENTRE INCREASING TO 60 KNOTS IN THE
NEXT 12 TO 24 HOURS. EXPECT WINDS OVER 47 KNOTS WITHIN 50 NAUTICAL
MILES OF THE CENTRE. EXPECT WINDS OVER 33 KNOTS WITHIN 150 NAUTICAL
MILES OF THE CENTRE.

ORGANISATION STEADILY IMPROVING. PRIMARY BANDS CONSOLIDATING AND
WRAPPING TIGHTLY AROUND LLCC. THE SYSTEM LIES OVER A WEAKLY SHEARED
AND DIFFLUENT ENVIROMENT. OUTFLOW GOOD TO EAST AND NORTH AND
DEVELOPING ELSEWHERE. SST 30C. SYSTEM STEERED WEST-SOUTHWEST BY
NORTHEAST DEEP LAYER MEAN FLOW. DVORAK ANALYSIS BASED ON 0.9 WRAP ON
LOG10 SPIRAL YIELDING DT=3.5. MET AND PT AGREE, THUS
T3.5/3.5/D1.0/24HRS. GLOBAL MODELS AGREE ON SOUTHWEST TRACK AND
INTENSIFICATION.

FORECASTS :
AT 12 HRS VALID AT 130000UTC 12.4S 178.3W MOV WSW AT 06 KT WITH 50 KT
CLOSE TO CENTRE.

AT 24 HRS VALID AT 131200 UTC 13.2S 178.0W MOV SW AT 05 KT WITH 60 KT
CLOSE TO CENTRE.

OUTLOOK :
AT 36 HRS VALID AT 140000 UTC 14.1S 179.6W MOV SW AT 06 KT WITH 65 KT
CLOSE TO CENTRE.

AT 48 HRS VALID AT 141200 UTC 15.1S 179.9W MOV SSW AT 07 KT WITH 75
KT CLOSE TO CENTRE.

THE NEXT TROPICAL DISTURBANCE ADVISORY ON TOMAS WILL BE ISSUED AT
122030 UTC OR EARLIER.
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#37 Postby HURAKAN » Fri Mar 12, 2010 10:13 am

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#38 Postby HURAKAN » Fri Mar 12, 2010 10:14 am

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WTPS32 PGTW 121500
MSGID/GENADMIN/NAVMARFCSTCEN PEARL HARBOR HI/JTWC//
SUBJ/TROPICAL CYCLONE 19P (TOMAS) WARNING NR 003//
RMKS/
1. TROPICAL CYCLONE 19P (TOMAS) WARNING NR 003
02 ACTIVE TROPICAL CYCLONES IN SOUTHPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
121200Z --- NEAR 11.4S 177.0W
MOVEMENT PAST SIX HOURS - 240 DEGREES AT 06 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
055 NM SOUTHEAST QUADRANT
055 NM SOUTHWEST QUADRANT
050 NM NORTHWEST QUADRANT
REPEAT POSIT: 11.4S 177.0W
---
FORECASTS:
12 HRS, VALID AT:
130000Z --- 12.0S 177.9W
MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT
030 NM SOUTHEAST QUADRANT
030 NM SOUTHWEST QUADRANT
035 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 065 NM NORTHEAST QUADRANT
070 NM SOUTHEAST QUADRANT
070 NM SOUTHWEST QUADRANT
060 NM NORTHWEST QUADRANT
VECTOR TO 24 HR POSIT: 215 DEG/ 06 KTS
---
24 HRS, VALID AT:
131200Z --- 12.9S 178.6W
MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 020 NM NORTHEAST QUADRANT
020 NM SOUTHEAST QUADRANT
020 NM SOUTHWEST QUADRANT
020 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 040 NM NORTHEAST QUADRANT
035 NM SOUTHEAST QUADRANT
035 NM SOUTHWEST QUADRANT
030 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 075 NM NORTHEAST QUADRANT
080 NM SOUTHEAST QUADRANT
080 NM SOUTHWEST QUADRANT
070 NM NORTHWEST QUADRANT
VECTOR TO 36 HR POSIT: 215 DEG/ 06 KTS
---
36 HRS, VALID AT:
140000Z --- 13.9S 179.3W
MAX SUSTAINED WINDS - 090 KT, GUSTS 110 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 - 050 NM NORTHEAST QUADRANT
050 NM SOUTHEAST QUADRANT
045 NM SOUTHWEST QUADRANT
040 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT
090 NM SOUTHEAST QUADRANT
080 NM SOUTHWEST QUADRANT
075 NM NORTHWEST QUADRANT
VECTOR TO 48 HR POSIT: 200 DEG/ 06 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
141200Z --- 15.1S 179.8W
MAX SUSTAINED WINDS - 100 KT, GUSTS 125 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 - 050 NM NORTHEAST QUADRANT
050 NM SOUTHEAST QUADRANT
045 NM SOUTHWEST QUADRANT
040 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 085 NM NORTHEAST QUADRANT
085 NM SOUTHEAST QUADRANT
080 NM SOUTHWEST QUADRANT
080 NM NORTHWEST QUADRANT
VECTOR TO 72 HR POSIT: 190 DEG/ 06 KTS
---
72 HRS, VALID AT:
151200Z --- 17.3S 179.8E
MAX SUSTAINED WINDS - 105 KT, GUSTS 130 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
045 NM SOUTHWEST QUADRANT
045 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 085 NM NORTHEAST QUADRANT
085 NM SOUTHEAST QUADRANT
075 NM SOUTHWEST QUADRANT
080 NM NORTHWEST QUADRANT
VECTOR TO 96 HR POSIT: 175 DEG/ 08 KTS
---
LONG RANGE OUTLOOK:
NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 250 NM
ON DAY 4 AND 350 NM ON DAY 5... AND FOR INTENSITY
NEAR 20 KT EACH DAY.
---
96 HRS, VALID AT:
161200Z --- 20.3S 179.8W
MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 120 HR POSIT: 150 DEG/ 14 KTS
---
120 HRS, VALID AT:
171200Z --- 25.1S 176.8W
MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT
WIND RADII VALID OVER OPEN WATER ONLY
---
REMARKS:
121500Z POSITION NEAR 11.6S 177.2W.
TROPICAL CYCLONE (TC) 19P (TOMAS), LOCATED APPROXIMATELY 500 NM
NORTHEAST OF NADI, FIJI, HAS TRACKED WEST-SOUTHWESTWARD AT 06 KNOTS
OVER THE PAST SIX HOURS. ANIMATED INFRARED SATELLITE IMAGERY AND A
120716Z SSMIS MICROWAVE IMAGE SHOWS TIGHTLY-WRAPPED CONVECTIVE
BANDING AS WELL AS CONTINUED SUPPRESSION OF DEEP CONVECTION IN THE
SOUTHERN SEMI-CIRCLE DUE TO AN UPPER-LEVEL TROUGH LOCATED SOUTH OF
THE SYSTEM. DIRECTLY ALOFT OF TC 19P, HOWEVER, AN ANTICYCLONE IS
PROVIDING EXCELLENT EQUATORWARD OUTFLOW. ACCORDINGLY, THE SYSTEM HAS
INTENSIFIED BY 20 KNOTS OVER THE PAST 12 HOURS. CURRENT POSITION AND
INTENSITY ESTIMATES ARE BASED ON DVORAK FIXES FROM PGTW AND PHFO. TC
TOMAS WILL CONTINUE TO TRACK ALONG THE PERIPHERY OF THE SUBTROPICAL
STEERING RIDGE TO THE SOUTH THROUGHOUT THE FORECAST PERIOD. THROUGH
TAU 72, THE SYSTEM WILL STEADILY INTENSIFY DUE TO STRONG OUTFLOW AND
HIGH OCEAN HEAT CONTENT (OHC) VALUES. AROUND TAU 72, TOMAS SHOULD
ROUND THE RIDGE AXIS AS A DIGGING MID-LATITUDE TROUGH WEAKENS THE
STEERING RIDGE AND ENABLES A RE-CURVE SCENARIO. AT THE SAME TIME,
TOMAS SHOULD ALSO REACH MAXIMUM INTENSITY AS POLEWARD OUTFLOW INTO
THE MID-LATITUDES INCREASES. BEYOND TAU 72, THE CYCLONE IS EXPECTED
TO GRADUALLY WEAKEN AS OHC VALUES FALL OFF AND UNFAVORABLE VERTICAL
WIND SHEAR INCREASES. THE MODEL GUIDANCE IS IN VERY GOOD AGREEMENT
WITH THE RE-CURVE SCENARIO. HOWEVER, THE NOGAPS, GFDN AND UKMO
MODELS INDICATE THE SYSTEM COULD TRACK A BIT FURTHER WEST BEFORE THE
SYSTEM RE-CURVES. THE MODELS ARE SHOWING THE MID-LATITUDE TROUGH
PUSHING QUICKLY EASTWARD, ENABLING THE RIDGE TO TEMPORARILY BUILD
BACK TO THE WEST BEFORE A SECOND MID-LATITUDE TROUGH PULLS THE
SYSTEM INTO THE MID-LATITUDES. THE FORECAST COMPENSATES FOR THIS
POSSIBILITY BY KEEPING THE SYSTEM SLOW AS IT APPROACHES AND ROUNDS
THE RIDGE AXIS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 121200Z IS 16
FEET. NEXT WARNINGS AT 130300Z AND 131500Z. REFER TO TROPICAL
CYCLONE 20P (TWENTY) WARNINGS (WTPS31 PGTW) FOR TWELVE-HOURLY
UPDATES.//
NNNN
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#39 Postby senorpepr » Fri Mar 12, 2010 10:18 am

TXPS24 KNES 121508


A. 19P (TOMAS)

B. 12/1430Z

C. 11.0S

D. 177.9W

E. THREE/MTSAT

F. T3.0/3.0/D0.5/24HRS

G. IR/EIR/SWIR

H. REMARKS...FT BASED ON DT BUT MET AND PT ARE 3.5 AND SUGGEST THAT
SYSTEM IS KICKING UP IT'S DEVELOPMENT DESPITE IT'S BROKEN STRUCTURE.

I. ADDL POSITIONS

NIL


...BALDWIN


SAB looking at T3.0... or about 45 kt.
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#40 Postby CrazyC83 » Fri Mar 12, 2010 10:20 am

45 kt seems reasonable. The mention of T3.5 would possibly suggest moving up to 50 kt but the broken structure leans lower.
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