TROPICAL CYCLONE TECHNICAL BULLETIN: AUSTRALIA - EASTERN REGION
Issued by BRISBANE TROPICAL CYCLONE WARNING CENTRE
at: 1301 UTC 31/01/2011
Name: Severe Tropical Cyclone Yasi
Identifier: 14U
Data At: 1200 UTC
Latitude: 13.4S
Longitude: 160.6E
Location Accuracy: within 30 nm [55 km]
Movement Towards: west [275 deg]
Speed of Movement: 19 knots [34 km/h]
Maximum 10-Minute Wind: 80 knots [150 km/h]
Maximum 3-Second Wind Gust: 110 knots [205 km/h]
Central Pressure: 963 hPa
Radius of 34-knot winds NE quadrant: 120 nm [220 km]
Radius of 34-knot winds SE quadrant: 140 nm [260 km]
Radius of 34-knot winds SW quadrant: 140 nm [260 km]
Radius of 34-knot winds NW quadrant: 90 nm [165 km]
Radius of 48-knot winds NE quadrant: 50 nm [95 km]
Radius of 48-knot winds SE quadrant: 70 nm [130 km]
Radius of 48-knot winds SW quadrant: 70 nm [130 km]
Radius of 48-knot winds NW quadrant: 40 nm [75 km]
Radius of 64-knot winds: 30 nm [55 km]
Radius of Maximum Winds: 20 nm [35 km]
Dvorak Intensity Code: T5.0/5.0/D1.5/24HRS
Pressure of outermost isobar: 1000 hPa
Radius of outermost closed isobar: 180 nm [335 km]
Storm Depth: Deep
FORECAST DATA
Date/Time : Location : Loc. Accuracy: Max Wind : Central Pressure
[UTC] : degrees : nm [km]: knots[km/h]: hPa
+12: 01/0000: 13.9S 156.9E: 050 [095]: 090 [165]: 951
+24: 01/1200: 15.0S 153.7E: 080 [150]: 095 [175]: 944
+36: 02/0000: 16.4S 150.5E: 115 [210]: 100 [185]: 939
+48: 02/1200: 17.5S 147.5E: 145 [270]: 105 [195]: 932
+60: 03/0000: 18.8S 144.5E: 195 [355]: 060 [110]: 976
+72: 03/1200: 20.3S 142.1E: 240 [445]: 030 [055]: 997
REMARKS:
Centre embedded within CDG to give DT 5.0. MET 4.5 with PAT 5.0. FT based on DT.
Improved organisation with rapid development during last 6 to 12 hours. Expect
system to continue intensifying within favourable environment of low shear and
good upper outflow.
Copyright Commonwealth of Australia
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