Bay of Bengal: Cyclonic Storm BAAZ (05B)

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Amaterasu
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#21 Postby Amaterasu » Mon Nov 28, 2005 4:31 am

Thanks for the update PK. Can you also post the link ?
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#22 Postby senorpepr » Mon Nov 28, 2005 7:35 am

Amaterasu wrote:Thanks for the update PK. Can you also post the link ?


http://www.imd.ernet.in/section/nhac/dynamic/rsmc.htm
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#23 Postby P.K. » Mon Nov 28, 2005 8:59 am

If I read this right we have a deep depression here now although the header still says depression.

No. BOB/11/2005/ 03 Dated 28nd November, 2005

Subject: Depression in the southeast Bay of Bengal

The depression over southeast Bay of Bengal moved slightly westward and intensified into a deep depression which lay centered at 1430 IST of 28 November, 2005 near Lat. 10.50 N and Long. 89.00 E about 1000 Km east-southeast of Chennai. The system is likely to intensify further and move in a west-northwesterly direction.

The numerical weather prediction products suggests that this system is likely to move towards north Tamil Nadu - South Andhra Pradesh Coast during next 2-3 days.

Under its influence fairly widespread rainfall with isolated heavy fall is likely over Bay Islands during next 24 hrs. Strong winds with speed reaching 45-55 Kmph also likely along and off Bay Islands during the same period.

State of the sea near Bay Islands will be rough to very rough. Fishermen in these areas are advised not to venture into the sea.
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#24 Postby shunshu » Mon Nov 28, 2005 9:01 am

its common for the IMD and the indian news media to confuse storm categories. am not surprised coz the local media used to refer to the tsunami as "storm".
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#25 Postby P.K. » Mon Nov 28, 2005 9:04 am

I think this is just a case of the header not being updated properly. Classifications from the IMD:


Category: Deep Depression

T.No.: T 2.0

Wind Speed: 28 – 33 Knots (52 – 61 Kmph)



Structures: Minor damage to loose/unsecured structures.

Road/Rail: Some breaches in kutcha road due to flooding.

Communications: Minor

Agriculture: Minor damage to banana trees and near-coastal agriculture due to salt

spray. Damage to ripe paddy crops.

Marine Interests: Very rough seas. Sea waves about 4-6 m high.

Coastal Zone: Minor damage to kutcha embankments.

Overall Damage Category: Minor

Suggested Actions: Fishermen advised not to venture into sea.





Category: Cyclonic Storm

T.No.: T 2.5-T3.0

Wind Speed: 34 –47 Knots (62 –87 Kmph)



Structures: Damage to thatched huts.

Road/Rail: Major damage to kutcha and minor damage to pucca roads.

Communications: Minor damage to power and communication lines due to breaking of

tree branches.

Agriculture: Some damage to paddy crops, banana, papaya trees and orchards.

Marine Interests: High to very high sea waves about 6 – 9 m high.

Coastal Zone: Sea water inundation in low lying areas after erosion of kutcha

embankments.

Overall Damage Category: Minor to Moderate

Suggested Actions: Fishermen advised not to venture into sea.





Category: Severe Cyclonic Storm

T.No.: T3.5

Wind Speed: 48 –63 Knots (88 –117Kmph)



Structures: Major damage to thatched houses/huts. Roof tops may blow off. Unattached

metal sheets may fly.

Road/Rail: Major damage to kutcha and some damage to pucca roads. Flooding of

escape routes.

Communications: Minor damage to power and communication lines.

Agriculture: Breaking of tree branches, uprooting of large avenue trees. Moderate

damage to banana and papaya trees. Large dead limbs blown from trees.

Marine Interests: Phenomenal seas with wave height 9-14 m. Movement in motor boats

unsafe.

Coastal Zone: Major damage to coastal crops. Storm surge upto 1.5m (area-specific)

causing damage to embankments/salt pans. Inundation upto 5 Km in specific

areas.

Overall Damage Category: Moderate

Suggested Actions: Fishermen advised not to venture into sea. Coastal hutment dwellers

advised to move to safer places. Other people in the affected areas to remain

indoors.



Category: Very Severe Cyclonic Storm

T.No.: T4.0-T4.5

Wind Speed: 64 –90 Knots (118 –167Kmph)



Structures: Total destruction of thatched houses/ extensive damage to kutcha houses.

Some damage to pucca houses. Potential threat from flying objects.

Road/Rail: Major damage to kutcha and pucca roads. Flooding of escape routes. Minor

disruption of railways, overhead power lines and signalling systems.

Communications: Bending/ uprooting of power and communication poles.

Agriculture: Widespread damage to standing crops, plantations, orchards, falling of

green coconuts and tearing of palm fronds. Blowing down of bushy trees like

mango.

Marine Interests: Phenomenal seas with wave heights more than 14m. Visibility

severely affected. Movement in motor boats and small ships unsafe.

Coastal Zone: Storm surge upto 2 m. Inundation upto 10 Km in specific areas. Small

boats, country crafts may get detached from moorings.

Overall Damage Category: Large

Suggested Actions: Fishermen not to venture into sea. Evacuation from coastal areas

needs to be mobilized. People advised to remain indoors. Judicious regulation of

rail and road traffic needed.



Category: Very Severe Cyclonic Storm

T.No.: T5.0-T6.0

Wind Speed: 91 – 119 Knots (168 –221 Kmph)



Structures: Extensive damage to all types of kutcha houses, some damage to old badly

managed pucca structures. Potential threat from flying objects.

Road/Rail: Disruption of rail/road link at several places.

Communications: Extensive uprooting of communication and power poles.

Agriculture: Extensive damage to standing crops, plantations, orchards. Blowing down

of palm and coconut trees. Uprooting of large bushy trees.

Marine Interests: Phenomenal seas with wave heights of more than 14 m. Movement in

motor boats and small ships not advisable.

Coastal Zone: Storm surge of 2 – 5 m. Inundation may extend upto 10-15 Km over

specific areas. Large boats and ships may get torn from their moorings.

Overall Damage Category: Extensive

Suggested Actions: Fishermen not to venture into sea. Evacuation from coastal areas

essential. Diversion / suspension of rail traffic may be required.



Category: Super Cyclonic Storm

T.No.: T6.5 and above

Wind Speed: 120 Knots and above (222 Kmph and above)



Structures: Extensive damage to non-concrete residential and industrial buildings.

Structural damage to concrete structures. Air full of large projectiles

Road/Rail: Extensive damage to kutcha roads and some damage to poorly repaired

pucca roads. Large scale submerging of coastal roads due to flooding and sea

water inundation. Total disruption of railway and road traffic due to major

damages to bridges, signals and railway tracks. Washing away of rail/road links at

several places.

Communications: Uprooting of communication and power poles. Total disruption of

communications and power supply.

Agriculture: Total destruction of standing crops/ orchards, uprooting of large trees and

blowing away of palm and coconut crowns, stripping of tree barks.

Marine Interests: Phenomenal seas with wave heights of more than 14 m. All shipping

activity unsafe.

Coastal Zone: Extensive damage to port installations. Storm surge more than 5m.

Inundation upto 40 km in specific areas and extensive beach erosion. All ships

torn from their moorings. Flooding of escape routes.

Overall Damage Category: Catastrophic

Suggested Actions: Fishermen not to venture into sea. Large scale evacuations needed.

Total stoppage of rail and road traffic needed in vulnerable areas.
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#26 Postby shunshu » Mon Nov 28, 2005 9:09 am

that means according to the JTWC predictions this can be a
"Severe Cyclonic Storm " 48 –63 Knots in IMDs book. I think in the latest sattelite pics the storm has moved considerably westwards.
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#27 Postby P.K. » Mon Nov 28, 2005 10:53 am

The header has now been updated:

No. BOB/11/2005/ 04 Dated 28th November, 2005

Subject: Deep Depression in the southeast Bay of Bengal

The deep depression over southeast Bay of Bengal moved westwards and lay centered at 1730 IST of 28th November, 2005 near Lat. 10.50 N and Long. 88.50 E about 950 Km east-southeast of Chennai. The system is likely to intensify further and move in a west-northwesterly direction.

The numerical weather prediction products suggests that this system is heading towards north Tamil Nadu - South Andhra Pradesh Coast during next 2-3 days.

Under its influence fairly widespread rainfall with isolated heavy falls likely over Bay Islands during next 24 hrs. Strong winds with speed reaching 45-55 Kmph also likely along and off Bay Islands during the same period.

State of the sea near Bay Islands will be rough to very rough. Fishermen in these areas are advised not to venture into the sea.

Fairly widespread rainfall with isolated heavy falls are likely to commence along north Tamil Nadu - South Andhra Pradesh Coast from 29th night onwards.
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#28 Postby HURAKAN » Mon Nov 28, 2005 1:08 pm

28/1430 UTC 10.7N 87.8E T3.0/3.0 05B -- Bay of Bengal


GETTING STRONGER.
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#29 Postby P.K. » Mon Nov 28, 2005 7:21 pm

No. BOB/11/2005/ 06 Dated 29th November, 2005

Subject: Cyclonic Storm in the southeast Bay of Bengal

The deep depression over southeast Bay of Bengal remained practically stationary and further intensified into a cyclonic storm "BAAZ", and lay centered at 2330 IST of 28th November 2005 near Lat. 10.50 N and Long. 88.00 E about 900 km east-southeast of Chennai. The system is likely to intensify further and move in a west-northwesterly direction towards north Tamilnadu- south Andhra coast during next 48 hours.

Under its influence fairly widespread rainfall with isolated heavy falls are likely to commence along north Tamilnadu - south Andhra Pradesh coast from 30th morning onwards. Strong winds speed reaching 50-60 kmph also likely to commence from 30th morning along and off the above coast.

State of sea will become rough to very rough from that time onwards. Fishermen along the above coasts are advised not to venture into the sea.
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#30 Postby shunshu » Mon Nov 28, 2005 7:51 pm

wow...05b looks good. i live in madras (chennai) and we've not had a cyclone hit us directly for nearly 10 years now. hopefully the government takes 05b seriously as people are already marooned in water by previous floods. and if it does hit on 30th my exams get cancelled :oops:
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#31 Postby senorpepr » Mon Nov 28, 2005 8:06 pm

Cyclonic Storm Baaz (BOB0503 / 05B) has been updated on the S2K Tropics Page, to include satellite imagery and advisories, both from the official source (India Meteorological Department) and from the Joint Typhoon Warning Center


-- http://tropicalupdates.nhcwx.com
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#32 Postby senorpepr » Mon Nov 28, 2005 8:19 pm

By the way, Baaz (pronunciation of Ba-az) is a male Arabic name for "falcon"
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#33 Postby senorpepr » Mon Nov 28, 2005 9:09 pm

No. BOB/11/2005/ 07

Dated 29th November, 2005

Subject: Cyclonic Storm in the southeast Bay of Bengal

The cyclonic storm "BAAZ", over southeast Bay of Bengal remained practically stationary and lay centered at 0230 IST of 29th November 2005 near Lat. 10.50 N and Long. 88.00 E about 900 km east -southeast of Chennai. The system is likely to intensify further and move in a west-northwesterly direction towards north Tamilnadu- south Andhra coast during next 48 hours.

Under its influence fairly widespread rainfall with isolated heavy falls are likely to commence along north Tamilnadu - south Andhra Pradesh coast from 30th morning onwards. Strong winds speed reaching 50-60 kmph also likely to commence from 30th morning along and off the above coast.

State of sea will become rough to very rough from that time onwards. Fishermen along the above coasts are advised not to venture into the sea.


http://tropicalupdates.nhcwx.com/
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#34 Postby HURAKAN » Mon Nov 28, 2005 9:46 pm

Image
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#35 Postby HURAKAN » Mon Nov 28, 2005 11:40 pm

29/0230 UTC 11.4N 85.1E T3.5/3.5 05B -- Bay of Bengal


Image


LOOKING BETTER AND BETTER!
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#36 Postby senorpepr » Tue Nov 29, 2005 12:15 am

No. BOB/11/2005/ 08

Dated 29th November, 2005

Subject: Cyclonic Storm in the southeast Bay of Bengal

The cyclonic storm "BAAZ" over southeast Bay of Bengal moved slightly westward and lay centered at 0530 IST of 29th November 2005 near Lat. 10.50 N and Long. 87.50 E about 825 km east-southeast of Chennai. The system is likely to intensify further and move in a west-northwesterly direction towards north Tamilnadu- south Andhra coast during next 48 hours.

Under its influence fairly widespread rainfall with isolated heavy falls are likely to commence along north Tamilnadu - south Andhra Pradesh coast from 30th morning onwards. Strong winds speed reaching 50-60 kmph also likely to commence from 30th morning along and off the above coasts.

State of sea will become rough to very rough from that time onwards. Fishermen along the above coasts are advised not to venture into the sea.


-- http://tropicalupdates.nhcwx.com/
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#37 Postby P.K. » Tue Nov 29, 2005 3:23 am

No. BOB/11/2005/ 09 Dated 29th November, 2005

Subject: Cyclonic Alert for North Tamil Nadu & South Andhra Pradesh Coasts

The cyclonic storm "BAAZ", over southeast Bay of Bengal moved further and lay centered at 0830 IST of 29th November 2005 near Lat. 10.50 N and Long. 87.00 E about 800 km east -southeast of Chennai. The system is likely to intensify further and move in a west-northwesterly direction towards north Tamilnadu- south Andhra coast during next 48 hours.

Under its influence fairly widespread rainfall with isolated heavy falls are likely to commence along north Tamilnadu - south Andhra Pradesh coast from 30th morning onwards. Strong winds speed reaching 50-60 kmph also likely to commence from 30th morning along and off the above coasts.

State of sea will become rough to very rough from that time onwards. Fishermen along the above coasts are advised not to venture into the sea.
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#38 Postby HURAKAN » Tue Nov 29, 2005 8:00 am

Image

WTIO31 PGTW 290900
MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TROPICAL CYCLONE 05B WARNING NR 004
01 ACTIVE TROPICAL CYCLONE IN NORTHIO
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
---
WARNING POSITION:
290600Z --- NEAR 11.6N 85.6E
MOVEMENT PAST SIX HOURS - 290 DEGREES AT 09 KTS
POSITION ACCURATE TO WITHIN 060 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT
055 NM SOUTHEAST QUADRANT
055 NM SOUTHWEST QUADRANT
070 NM NORTHWEST QUADRANT
REPEAT POSIT: 11.6N 85.6E
---
FORECASTS:
12 HRS, VALID AT:
291800Z --- 12.2N 84.1E
MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT
060 NM SOUTHEAST QUADRANT
060 NM SOUTHWEST QUADRANT
070 NM NORTHWEST QUADRANT
VECTOR TO 24 HR POSIT: 295 DEG/ 07 KTS
---
24 HRS, VALID AT:
300600Z --- 12.8N 82.9E
MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
RADIUS OF 050 KT WINDS - 025 NM NORTHEAST QUADRANT
020 NM SOUTHEAST QUADRANT
020 NM SOUTHWEST QUADRANT
025 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 075 NM NORTHEAST QUADRANT
065 NM SOUTHEAST QUADRANT
065 NM SOUTHWEST QUADRANT
075 NM NORTHWEST QUADRANT
VECTOR TO 36 HR POSIT: 305 DEG/ 06 KTS
---
36 HRS, VALID AT:
301800Z --- 13.5N 81.9E
MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT
RADIUS OF 050 KT WINDS - 025 NM NORTHEAST QUADRANT
020 NM SOUTHEAST QUADRANT
020 NM SOUTHWEST QUADRANT
025 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 075 NM NORTHEAST QUADRANT
065 NM SOUTHEAST QUADRANT
065 NM SOUTHWEST QUADRANT
075 NM NORTHWEST QUADRANT
VECTOR TO 48 HR POSIT: 315 DEG/ 07 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
010600Z --- 14.4N 80.9E
MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT
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 - 080 NM NORTHEAST QUADRANT
075 NM SOUTHEAST QUADRANT
075 NM SOUTHWEST QUADRANT
OVER WATER
080 NM NORTHWEST QUADRANT
OVER WATER
---
REMARKS:
290900Z POSITION NEAR 11.7N 85.2E.
TROPICAL CYCLONE (TC) 05B, LOCATED APPROXIMATELY 330 NM EAST-
SOUTHEAST OF MADRAS, INDIA, HAS TRACKED WEST-NORTHWESTWARD AT
09 KNOTS OVER THE PAST 06 HOURS. THE CYCLONE CONTINUES TO TRACK
ALONG THE SOUTHERN PERIPHERY OF A MID-LEVEL STEERING RIDGE
CENTERED OVER THE NORTHERN BAY OF BENGAL. LATE IN THE FORECAST
PERIOD TC 05B WILL TURN MORE POLEWARD AND MODERATELY INTENSIFY
AS IT TRACKS ALONG THE SOUTHWESTERN QUADRANT OF THE RIDGE. THE
STORM WILL INTENSIFY AT A LESS THAN CLIMATOLOGICAL RATE AS
MODERATE VERTICAL WIND SHEAR WILL INHIBIT INTENSIFICATION.
MAXIMUM SIGNIFICANT WAVE HEIGHT AT 290600Z IS 15 FEET. NEXT
WARNINGS AT 292100Z AND 300900Z.//

NNNN

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#39 Postby senorpepr » Tue Nov 29, 2005 10:06 am

No. BOB/11/2005/12 Dated 29th November, 2005

Subject: Cyclonic Warning for North Tamil Nadu & South Andhra Pradesh Coasts

The cyclonic storm "BAAZ", over southeast Bay of Bengal moved west-northwestwards and lay centered at 1730 IST of 29th November 2005 near Lat. 12.00 N and Long. 84.00 E about 450 km east - southeast of Chennai. The system is likely to intensify further and move in a west-northwesterly direction and cross the north Tamil Nadu - south Andhra coast between Chennai and Machilipatnam by the morning of 1st December 2005.

Under its influence fairly widespread rainfall with isolated heavy falls are likely to commence along north Tamilnadu - south Andhra Pradesh coast from tomorrow morning. Gales speed reaching 80-90 kmph also likely to commence along and off the above coasts from tomorrow evening.

State of sea will be very rough to high off north Tamil Nadu - south Andhra Pradesh coast. Fishermen along the above coasts are advised not to venture into the sea.
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imd predicted path

#40 Postby shunshu » Tue Nov 29, 2005 10:33 am

Image

[anyone knows anything abt the imd model?]
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