SIO: Tropical Low 1

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jaguarjace
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SIO: Tropical Low 1

#1 Postby jaguarjace » Mon Feb 29, 2016 1:11 am

94S INVEST 160229 0000 10.0S 107.5E SHEM 15 1010
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Re: SIO: INVEST 94S

#2 Postby jaguarjace » Sat Mar 05, 2016 8:36 am

AUSTRALIAN GOVERNMENT BUREAU OF METEOROLOGY
TROPICAL CYCLONE WARNING CENTRE PERTH

TROPICAL CYCLONE FORECAST TRACK MAP
Tropical Low

Issued at 8:57 pm AWST Saturday 5 March 2016. No Tropical Cyclone Advice is current for this system.
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Alyono
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Re: SIO: INVEST 94S

#3 Postby Alyono » Sat Mar 05, 2016 9:52 am

ASCAT shows this is a cyclone
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Re: SIO: INVEST 94S

#4 Postby Alyono » Sat Mar 05, 2016 1:15 pm

I'm a bit confused, so perhaps someone can help me

Isn't TC defined as 35 kt winds? If so, how is BOM calling this a tropical low when they say it has 35 kt winds?

Name: Tropical Low
Identifier: 12U
Data At: 1200 UTC
Latitude: 16.8S
Longitude: 93.0E
Location Accuracy: within 45 nm [85 km]
Movement Towards: west southwest [241 deg]
Speed of Movement: 12 knots [22 km/h]
Maximum 10-Minute Wind: 35 knots [65 km/h]
Maximum 3-Second Wind Gust: 50 knots [95 km/h]
Central Pressure: 1002 hPa
Radius of 34-knot winds NE quadrant:
Radius of 34-knot winds SE quadrant: 90 nm [165 km]
Radius of 34-knot winds SW quadrant: 90 nm [165 km]
Radius of 34-knot winds NW quadrant:
Radius of 48-knot winds NE quadrant:
Radius of 48-knot winds SE quadrant:
Radius of 48-knot winds SW quadrant:
Radius of 48-knot winds NW quadrant:
Radius of 64-knot winds:
Radius of Maximum Winds: 40 nm [75 km]
Dvorak Intensity Code: T2.0/2.0/D1.0/24HRS STT:S0.0/06HRS
Pressure of outermost isobar: 1006 hPa
Radius of outermost closed isobar: 60 nm [110 km]
FORECAST DATA
Date/Time : Location : Loc. Accuracy: Max Wind : Central Pressure
[UTC] : degrees : nm [km]: knots[km/h]: hPa
+06: 05/1800: 17.2S 91.8E: 055 [105]: 035 [065]: 1000
+12: 06/0000: 17.5S 90.5E: 070 [130]: 040 [075]: 998
+18: 06/0600: 17.7S 89.3E: 080 [150]: 040 [075]: 998
+24: 06/1200: 18.0S 88.3E: 095 [175]: 035 [065]: 1000
+36: 07/0000: 18.6S 86.7E: 115 [210]: 030 [055]: 1002
+48: 07/1200: 19.1S 85.6E: 135 [245]: 025 [045]: 1001
+60: 08/0000: 19.2S 84.3E: 150 [280]: 025 [045]: 1001
+72: 08/1200: 19.3S 82.7E: 170 [320]: 025 [045]: 1002
+96: 09/1200: 19.3S 79.4E: 215 [400]: 025 [045]: 1002
+120: 10/1200:
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Re: SIO: INVEST 94S

#5 Postby jaguarjace » Sat Mar 05, 2016 2:58 pm

The wind speed needs to extend more than half-way around the centre and persisting for at least six hours to be considered a tropical cyclone by BoM.
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Re: SIO: Tropical Low 1

#6 Postby stormwise » Sat Mar 05, 2016 6:41 pm

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