SW Indian Ocean: Tropical Cyclone Diwa

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SW Indian Ocean: Tropical Cyclone Diwa

#1 Postby HURAKAN » Thu Mar 02, 2006 7:16 am

AN AREA OF CONVECTION HAS PERSISTED NEAR 13.2S 58.4E,
APPROXIMATELY 510 NM NORTH-NORTHEAST OF LA REUNION. EARLIER
ANIMATED MULTISPECTRAL IMAGERY REVEALED AN ELONGATED LOW LEVEL
CIRCULATION CENTER (LLCC) EMBEDDED WITHIN THE MONSOON TROUGH
EAST OF MADAGASCAR. RECENT ANIMATED ENHANCED INFRARED IMAGERY
DEPICTS AN INCREASE IN CONVECTION NEAR THE LOW LEVEL DISTURBANCE.
AN UPPER LEVEL RIDGE AXIS LIES JUST EQUATORWARD OF THE LLCC,
PLACING THE SYSTEM IN A REGION OF LOW TO MODERATE VERTICAL WIND
SHEAR WITH FAVORABLE POLEWARD AND EQUATORWARD DIFFLUENCE. MAXIMUM
SUSTAINED SURFACE WINDS ARE ESTIMATED AT 15 TO 20 KNOTS. MINIMUM
SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1004 MB. SINCE THE
LLCC HAS NOT FULLY ORGANIZED AND CONVECTION CONTINUES TO CYCLE,
THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL
CYCLONE WITHIN THE NEXT 24 HOURS IS POOR.


Image

02/0830 UTC 13.3S 57.2E T1.5/1.5 98S -- South Indian Ocean

ZONE PERTURBEE 11-20052006

PRESSION ESTIMEE AU CENTRE : 1002 HPA.
POSITION LE 02 MARS A 10 HEURES LOCALES: 13.0 SUD / 58.0 EST
(TREIZE DEGRES ZERO SUD ET CINQUANTE-HUIT DEGRES ZERO EST).

DISTANCE DES COTES REUNIONNAISES: 910 KM AU NORD-NORD-EST
DEPLACEMENT: INDETERMINE

CE BULLETIN EST A
PRESENT TERMINE.
IL SERA REACTUALISE CETTE APRES MIDI A 16H30

BULLETIN DU 02 MARS A 10H30 LOCALES:

IL N'Y A PAS D'ALERTE EN COURS A LA REUNION, ET SI AUCUNE
MENACE CYCLONIQUE N'EST ENVISAGEE POUR LES PROCHAINES 72 HEURES,
IL EST FORTEMENT RECOMMANDE DE SE TENIR INFORME DE L'EVOLUTION DE
LA SITUATION


The southern Indian Ocean continues to get active and another cyclone could form in a few days.
Last edited by HURAKAN on Fri Mar 03, 2006 8:29 am, edited 3 times in total.
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#2 Postby HURAKAN » Thu Mar 02, 2006 8:20 am

Image

La Reunion and Madagascar, watch out!
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#3 Postby P.K. » Thu Mar 02, 2006 10:10 am

BULLETIN DU 02 MARS A 16H30 LOCALES:

IL N'Y A PAS D'ALERTE EN COURS A LA REUNION, ET SI AUCUNE
MENACE CYCLONIQUE N'EST ENVISAGEE POUR LES PROCHAINES 48 HEURES,
IL EST FORTEMENT RECOMMANDE DE SE TENIR INFORME DE L'EVOLUTION DE
LA SITUATION
*****************************************************

PERTURBATION TROPICALE 11-20052006

PRESSION ESTIMEE AU CENTRE : 1002 HPA.
POSITION LE 02 MARS A 16 HEURES LOCALES: 13.2 SUD / 57.3 EST
(TREIZE DEGRES DEUX SUD ET CINQUANTE-SEPT DEGRES TROIS EST).

DISTANCE DES COTES REUNIONNAISES: 870 KM AU NORD-NORD-EST
DEPLACEMENT: QUASI-STATIONNAIRE

VOICI LES INTENSITES ET POSITIONS PREVUES DE CE SYSTEME DEPRESSIONNAIRE AU COURS DES PROCHAINS JOURS

TEMP. TROP. MODEREE, CENTRE POSITIONNE DANS 24H PAR 14.7S/58.4E
TEMP. TROP. MODEREE, CENTRE POSITIONNE DANS 48H PAR 17.2S/56.5E
CYCLONE TROPICAL, CENTRE POSITIONNE DANS 72H PAR 20S/53E


ATTENTION: LES PREVISIONS DE TRAJECTOIRE ET D'INTENSITE
PRECEDENTES SONT A CONSIDERER AVEC LA PLUS GRANDE PRUDENCE
COMPTE TENU DE LEUR INCERTITUDE. ELLES NE CONCERNENT QUE LA
POSITION DU CENTRE DU PHENOMENE, SANS CONSIDERATION SUR SON
EXTENSION.
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#4 Postby Coredesat » Thu Mar 02, 2006 10:33 am

02/1430 UTC 13.4S 57.7E T1.5/1.5 98S
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#5 Postby HURAKAN » Thu Mar 02, 2006 3:00 pm

THE AREA OF CONVECTION PREVIOUSLY LOCATED NEAR 13.2S
58.4E IS NOW LOCATED NEAR 13.5S 57.4E, APPROXIMATELY 470 NM NORTH-
NORTHEAST OF LA REUNION. ANIMATED MULTISPECTRAL IMAGERY REVEALED
AN IMPROVING LOW LEVEL CIRCULATION CENTER (LLCC) EMBEDDED WITHIN
THE MONSOON TROUGH EAST OF MADAGASCAR. RECENT ANIMATED ENHANCED
INFRARED IMAGERY DEPICTS PERSISTENT CONVECTION NEAR THE LOW LEVEL
DISTURBANCE. UPPER LEVEL ANALYSIS REVEALS GOOD ANTICYCLONIC
OUTFLOW ALOFT IN A REGION OF LOW VERTICAL WIND SHEAR. MAXIMUM
SUSTAINED SURFACE WINDS ARE ESTIMATED AT 20 TO 25 KNOTS. MINIMUM
SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1002 MB. GIVEN AN
ORGANIZING LLCC AND A FAVORABLE UPPER LEVEL ENVIRONMENT, THE
POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE
WITHIN THE NEXT 24 HOURS IS UPGRADED TO FAIR.
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#6 Postby P.K. » Thu Mar 02, 2006 7:45 pm

BULLETIN DU 03 MARS A 04H30 LOCALES:

IL N'Y A PAS D'ALERTE EN COURS A LA REUNION, ET SI AUCUNE
MENACE CYCLONIQUE N'EST ENVISAGEE POUR LES PROCHAINES 48 HEURES,
IL EST FORTEMENT RECOMMANDE DE SE TENIR INFORME DE L'EVOLUTION DE
LA SITUATION
*****************************************************

PERTURBATION TROPICALE 11-20052006

PRESSION ESTIMEE AU CENTRE : 999 HPA.
POSITION LE 03 MARS A 04 HEURES LOCALES: 13.9 SUD / 57.6 EST
(TREIZE DEGRES NEUF SUD ET CINQUANTE-SEPT DEGRES SIX EST).

DISTANCE DES COTES REUNIONNAISES: 800 KM AU NORD-NORD-EST
DEPLACEMENT: SUD-SUD-EST A 7 KM/H.

VOICI LES INTENSITES ET POSITIONS PREVUES DE CE SYSTEME DEPRESSIONNAIRE AU COURS DES PROCHAINS JOURS

TEMP. TROP. MODEREE, CENTRE POSITIONNE DANS 24H PAR 15.4S/57.6E
FORTE TEMP. TROP., CENTRE POSITIONNE DANS 48H PAR 17.8S/55.5E
CYCLONE TROPICAL, CENTRE POSITIONNE DANS 72H PAR 21.4S/52.3E

ATTENTION: LES PREVISIONS DE TRAJECTOIRE ET D'INTENSITE
PRECEDENTES SONT A CONSIDERER AVEC LA PLUS GRANDE PRUDENCE
COMPTE TENU DE LEUR INCERTITUDE. ELLES NE CONCERNENT QUE LA
POSITION DU CENTRE DU PHENOMENE, SANS CONSIDERATION SUR SON
EXTENSION.

CE BULLETIN EST A
PRESENT TERMINE.
REACTUALISATION CE VENDREDI 03 MARS A 10H30 LOCALES
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#7 Postby Coredesat » Thu Mar 02, 2006 10:47 pm

Image

NRL has upgraded wind speed to 25 kt.
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#8 Postby senorpepr » Fri Mar 03, 2006 3:40 am

///Official: 30kt (10-min or 34kt US 1-min); 997mb)///


BULLETIN DU 03 MARS A 13H30 LOCALES:

VIGILANCE CYCLONIQUE EN COURS A LA REUNION
*****************************************************


NATURE DES SYSTEMES DEPRESSIONNAIRES TROPICAUX
PRESENTS SUR LE SUD-OUEST DE L'OCEAN INDIEN


DEPRESSION TROPICALE 11-20052006

PRESSION ESTIMEE AU CENTRE : 997 HPA.
POSITION LE 03 MARS A 10 HEURES LOCALES: 15.6 SUD / 58.0 EST
(QUINZE DEGRES SIX SUD ET CINQUANTE-HUIT DEGRES ZERO EST).

DISTANCE DES COTES REUNIONNAISES: 635 KM AU NORD-NORD-EST
DEPLACEMENT: SUD A 14 KM/H.

VOICI LES INTENSITES ET POSITIONS PREVUES DE CE SYSTEME DEPRESSIONNAIRE AU COURS DES PROCHAINS JOURS

TEMP. TROP. MODEREE, CENTRE POSITIONNE DANS 24H PAR 18.1S/56.1E
FORTE TEMP. TROP., CENTRE POSITIONNE DANS 48H PAR 20.2S/53.8E
CYCLONE TROPICAL, CENTRE POSITIONNE DANS 72H PAR 23.2S/50.8E


ATTENTION: LES PREVISIONS DE TRAJECTOIRE ET D'INTENSITE
PRECEDENTES SONT A CONSIDERER AVEC LA PLUS GRANDE PRUDENCE
COMPTE TENU DE LEUR INCERTITUDE. ELLES NE CONCERNENT QUE LA
POSITION DU CENTRE DU PHENOMENE, SANS CONSIDERATION SUR SON
EXTENSION.


WTIO30 FMEE 030651 CCA
*************** CORRECTIVE **************
RSMC / TROPICAL CYCLONE CENTRE / LA REUNION
TROPICAL CYCLONE FORECAST WARNING (SOUTH-WEST INDIAN OCEAN)

0.A WARNING NUMBER : 4/11/20052006
1.A TROPICAL DEPRESSION 11

2.A POSITION 2006/03/03 AT 0600 UTC :
WITHIN 40 NM RADIUS OF POINT 15.6S / 58.0E
(FIFTEEN DECIMAL SIX DEGREES SOUTH AND FIFTY EIGHT DECIMAL ZERO DEGREES
EAST)

3.A DVORAK ANALYSIS : 2.5/2.5 /D 0.5/6 H
4.A CENTRAL PRESSURE : 997 HPA
5.A MAX AVERAGE WIND SPEED (10 MN) : 30 KT

6.A EXTENSION OF WINDS BY QUADRANTS (KM):
30 KT NE: 220 SE: 220 SO: 220 NO: 220

7.A FIRST CLOSED ISOBARE (PRESSURE / AVERAGE DIAM): 1004 HPA / 1000 KM
8.A VERTICAL EXTENSION OF CYCLONE CIRCULATION: DEEP

1.B FORECASTS:
12H: 2006/03/03 18 UTC: 17.0S/57.0E, MAX WIND=040KT , MODERATE TROP.
STORM.
24H: 2006/03/04 06 UTC: 18.1S/56.1E, MAX WIND=040KT , MODERATE TROP.
STORM.
36H: 2006/03/04 18 UTC: 19.1S/54.8E, MAX WIND=050KT , SEVERE TROP. STORM.
48H: 2006/03/05 06 UTC: 20.2S/53.8E, MAX WIND=060KT , SEVERE TROP. STORM.
60H: 2006/03/05 18 UTC: 21.5S/52.0E, MAX WIND=070KT , TROPICAL CYCLONE.
72H: 2006/03/06 06 UTC: 23.2S/50.8E, MAX WIND=070KT , TROPICAL CYCLONE.

2.B OTHER INFORMATIONS:
T=CI=2.5
THE CLOCKWISE CIRCULATION REMAINS VERY LARGE IN RELATIONSHIP WITH A VERY
ACTIVE MONSOON TROUGH. THIS MONSOON DEPRESSION STRUCTURE IMPLIES A RATHER
WIDE EXTENSION OF MAXIMIUM WINDS. THE ENVIRONMENTAL CONDITIONS ARE
FAVOURABLE AND THE INTENSIFICATION IS EXPECTED TO KEEP ON.
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#9 Postby Matt-hurricanewatcher » Fri Mar 03, 2006 3:49 am

good bomb baby bomb!
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#10 Postby senorpepr » Fri Mar 03, 2006 4:07 am

Matt-hurricanewatcher wrote:good bomb baby bomb!


That would be a very bad idea--unless you have a fetish for death and destruction. The more 11R strengthens, the more of a threat it poses on La Reunion and Madagascar.
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#11 Postby HURAKAN » Fri Mar 03, 2006 4:55 am

Image

Image

I really don't understand this people, they name a tropicl depression, but didn't name the past tropical storm! What's the deal?
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#12 Postby senorpepr » Fri Mar 03, 2006 5:01 am

That is really odd. Oh well... it's their decision and not ours. :)
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#13 Postby P.K. » Fri Mar 03, 2006 5:05 am

LOL - The one they didn't name was more of a threat at the time than this one!
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#14 Postby senorpepr » Fri Mar 03, 2006 5:08 am

Must be a different forecaster on shift. :lol:
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#15 Postby HURAKAN » Fri Mar 03, 2006 5:16 am

senorpepr wrote:Must be a different forecaster on shift. :lol:


That's a good one!!!
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#16 Postby P.K. » Fri Mar 03, 2006 5:20 am

What I do notice is there is a 9am GMT position in the storm track which is not common.

03/03/2006 06:00 58.00 15.60 2.5 DEPRESSION tropicale 997 30 kt, 55 km/h 42 kt, 78 km/h
03/03/2006 09:00 57.60 16.10 2.5 DEPRESSION tropicale 997 30 kt, 55 km/h 42 kt, 78 km/h
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#17 Postby HURAKAN » Fri Mar 03, 2006 8:26 am

BULLETIN DU 03 MARS A 16H30 LOCALES:

VIGILANCE CYCLONIQUE EN COURS A LA REUNION
*****************************************************


NATURE DES SYSTEMES DEPRESSIONNAIRES TROPICAUX
PRESENTS SUR LE SUD-OUEST DE L'OCEAN INDIEN


TEMPETE TROPICALE MODEREE DIWA

PRESSION ESTIMEE AU CENTRE : 995 HPA.
POSITION LE 03 MARS A 16 HEURES LOCALES: 16.4 SUD / 57.3 EST
(SEIZE DEGRES QUATRE SUD ET CINQUANTE-SEPT DEGRES TROIS EST).

DISTANCE DES COTES REUNIONNAISES: 525 KM AU NORD-NORD-EST
DEPLACEMENT: SUD-SUD-OUEST A 11 KM/H.

VOICI LES INTENSITES ET POSITIONS PREVUES DE CE SYSTEME DEPRESSIONNAIRE AU COURS DES PROCHAINS JOURS

TEMP. TROP. MODEREE, CENTRE POSITIONNE DANS 24H PAR 18.4S/55.7E
FORTE TEMP. TROP., CENTRE POSITIONNE DANS 48H PAR 20S/52.7E
CYCLONE TROPICAL, CENTRE POSITIONNE DANS 72H PAR 22.3S/51.1E


ATTENTION: LES PREVISIONS DE TRAJECTOIRE ET D'INTENSITE
PRECEDENTES SONT A CONSIDERER AVEC LA PLUS GRANDE PRUDENCE
COMPTE TENU DE LEUR INCERTITUDE. ELLES NE CONCERNENT QUE LA
POSITION DU CENTRE DU PHENOMENE, SANS CONSIDERATION SUR SON
EXTENSION.
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#18 Postby HURAKAN » Fri Mar 03, 2006 8:29 am

Image
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#19 Postby P.K. » Fri Mar 03, 2006 11:12 am

It isn't a TC yet.... I logged in and thought it had reached 65kts already! :lol:
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#20 Postby HURAKAN » Fri Mar 03, 2006 11:49 am

P.K. wrote:It isn't a TC yet.... I logged in and thought it had reached 65kts already! :lol:


I know it's not a hurricane or tropical cyclone yet, but regularly all named tropical systems from the Southern Hemisphere and the North Indian Ocean are treated as tropical cyclones. I know it's a tropical storm, and if any moderator finds important to change the title to tropical storm, please do so! :D
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