AXAU01 APRF 240017
IDW27600
TROPICAL CYCLONE TECHNICAL BULLETIN: AUSTRALIA - WESTERN REGION
Issued by PERTH TROPICAL CYCLONE WARNING CENTRE
at: 0017 UTC 24/03/2009
Name: Ex-Tropical Cyclone Ilsa
Identifier: 18U
Data At: 0000 UTC
Latitude: 19.3S
Longitude: 90.1E
Location Accuracy: within 25 nm [46 km]
Movement Towards: west southwest [247 deg]
Speed of Movement: 14 knots [27 km/h]
Maximum 10-Minute Wind: 30 knots [55 km/h]
Maximum 3-Second Wind Gust: 45 knots [85 km/h]
Central Pressure: 1005 hPa
Radius of 34-knot winds NE quadrant:    
Radius of 34-knot winds SE quadrant:    
Radius of 34-knot winds SW quadrant:    
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: N/A
Dvorak Intensity Code: T2.0/2.5/W1.0/24HRS
Pressure of outermost isobar: 1008 hPa
Radius of outermost closed isobar: 70 nm [130 km]
Storm Depth: Shallow
FORECAST DATA
Date/Time   : Location    : Loc. Accuracy: Max Wind   : Central Pressure
[UTC]       : degrees     :      nm  [km]: knots[km/h]: hPa
+12: 24/1200: 20.3S  87.4E:     055 [100]:  025  [045]: 1008
+24: 25/0000: 21.4S  84.7E:     085 [155]:  020  [035]: 1010
+36: 25/1200: 22.7S  82.0E:     120 [220]:  020  [035]: 1010
+48: 26/0000: 24.3S  79.9E:     150 [280]:  015  [030]: 1012
+60: 26/1200:             :              :            :     
+72: 27/0000:             :              :            :     
REMARKS:
Ilsa has weakened below TC intensity under the influence of moderate shear over
cool SSTs. No deep convection remains. Near gale force winds may persist for a
period in the southern quadrant due to translation speed and the pressure
gradient associated with the ridge to the south.
Copyright Commonwealth of Australia
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The next bulletin for this system will be issued by: 24/0700 UTC by Perth TCWC.