** WTAU06 APRF 290658 *** IDW23200 40:3:2:24:17S118E999:11:00 PANPAN HIGH SEAS WEATHER WARNING FOR METAREA 10 ISSUED BY THE AUSTRALIAN BUREAU OF METEOROLOGY TROPICAL CYCLONE WARNING CENTRE PERTH AT 0658UTC 29 MARCH 2006 HURRICANE WARNING FOR THE WESTERN AREA Please be aware, wind gusts can be a further 40 percent stronger than the averages given here, and maximum waves may be up to twice the height. SITUATION At 0600UTC Severe Tropical Cyclone Glenda located within 15 nautical miles of Latitude seventeen decimal seven degrees South [17.7S] Longitude one hundred and eighteen decimal zero degrees East [118.0E] Recent movement : West southwest at 7 knots. Maximum winds : 100 knots. Central pressure : 920hPa. AREA AFFECTED Within 80 nautical miles of the centre in northern quadrants, extending to within 140 nautical miles of centre in southern quadrants. FORECAST Sustained winds near the centre to 100 knots. Within 20 nautical miles of centre, clockwise winds above 64 knots, phenomenal seas and heavy swell. Within 45 nautical miles of centre, clockwise winds above 48 knots, very high seas and heavy swell. Within 80 nautical miles of centre in northern quadrants, extending to within 140 nautical miles of centre in southern quadrants, winds above 33 knots with very rough seas and heavy swell. At 1800UTC 29 March: Within 40 nautical miles of 18.9 South 116.7 East Central pressure 920hPa. Winds to 100 knots near centre. At 0600UTC 30 March: Within 60 nautical miles of 20.6 South 115.8 East Central pressure 920hPa. Winds to 100 knots near centre. Next warning issued by 1300UTC 29 March 2006. WEATHER PERTH ** WTAU06 APRF 290658 *** IDW23200 40:3:2:24:17S118E999:11:00 PANPAN HIGH SEAS WEATHER WARNING FOR METAREA 10 ISSUED BY THE AUSTRALIAN BUREAU OF METEOROLOGY TROPICAL CYCLONE WARNING CENTRE PERTH AT 0658UTC 29 MARCH 2006 HURRICANE WARNING FOR THE WESTERN AREA Please be aware, wind gusts can be a further 40 percent stronger than the averages given here, and maximum waves may be up to twice the height. SITUATION At 0600UTC Severe Tropical Cyclone Glenda located within 15 nautical miles of Latitude seventeen decimal seven degrees South [17.7S] Longitude one hundred and eighteen decimal zero degrees East [118.0E] Recent movement : West southwest at 7 knots. Maximum winds : 100 knots. Central pressure : 920hPa. AREA AFFECTED Within 80 nautical miles of the centre in northern quadrants, extending to within 140 nautical miles of centre in southern quadrants. FORECAST Sustained winds near the centre to 100 knots. Within 20 nautical miles of centre, clockwise winds above 64 knots, phenomenal seas and heavy swell. Within 45 nautical miles of centre, clockwise winds above 48 knots, very high seas and heavy swell. Within 80 nautical miles of centre in northern quadrants, extending to within 140 nautical miles of centre in southern quadrants, winds above 33 knots with very rough seas and heavy swell. At 1800UTC 29 March: Within 40 nautical miles of 18.9 South 116.7 East Central pressure 920hPa. Winds to 100 knots near centre. At 0600UTC 30 March: Within 60 nautical miles of 20.6 South 115.8 East Central pressure 920hPa. Winds to 100 knots near centre. Next warning issued by 1300UTC 29 March 2006. WEATHER PERTH ** WTXS31 PGTW 290900 *** MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TROPICAL CYCLONE 20S (GLENDA) WARNING NR 009 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 290600Z --- NEAR 17.9S 117.9E MOVEMENT PAST SIX HOURS - 240 DEGREES AT 08 KTS POSITION ACCURATE TO WITHIN 040 NM POSITION BASED ON EYE FIXED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 120 KT, GUSTS 145 KT RADIUS OF 064 KT WINDS - 020 NM NORTHEAST QUADRANT 020 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 020 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 055 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 110 NM NORTHEAST QUADRANT 125 NM SOUTHEAST QUADRANT 135 NM SOUTHWEST QUADRANT 120 NM NORTHWEST QUADRANT REPEAT POSIT: 17.9S 117.9E --- FORECASTS: 12 HRS, VALID AT: 291800Z --- 19.2S 116.8E MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT RADIUS OF 064 KT WINDS - 015 NM NORTHEAST QUADRANT 015 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 020 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 045 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 100 NM NORTHEAST QUADRANT 105 NM SOUTHEAST QUADRANT OVER WATER 120 NM SOUTHWEST QUADRANT OVER WATER 110 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 210 DEG/ 09 KTS --- 24 HRS, VALID AT: 300600Z --- 20.7S 115.8E MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT RADIUS OF 064 KT WINDS - 010 NM NORTHEAST QUADRANT 010 NM SOUTHEAST QUADRANT 015 NM SOUTHWEST QUADRANT 015 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT 035 NM SOUTHEAST QUADRANT OVER WATER 040 NM SOUTHWEST QUADRANT OVER WATER 040 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 085 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT OVER WATER 100 NM SOUTHWEST QUADRANT OVER WATER 095 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 195 DEG/ 09 KTS --- 36 HRS, VALID AT: 301800Z --- 22.4S 115.3E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 48 HR POSIT: 185 DEG/ 11 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 310600Z --- 24.5S 115.1E MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 290900Z POSITION NEAR 18.2S 117.6E. TROPICAL CYCLONE (TC) 20S (GLENDA), LOCATED APPROXIMATELY 150 NM NORTH-NORTHWEST OF PORT HEDLAND, AUSTRALIA, HAS TRACKED WEST- SOUTHWESTWARD AT 08 KNOTS OVER THE PAST 06 HOURS. THE TRACK OF TC 20S WILL BECOME MORE POLEWARD AS IT NEARS A WEAKNESS IN THE MIDLEVEL STEERING RIDGE CAUSED BY A MID-LATITUDE TROUGH OVER THE WEST COAST OF AUSTRALIA. GRADUAL WEAKENING IS EXPECTED DUE TO INCREASING VERTICAL WIND SHEAR ENVIRONMENT ASSOCIATED WITH THE SUBTROPICAL JET OVER SOUTHWEST AUSTRALIA. THE SYSTEM WILL MAKE LANDFALL NEAR TAU 24 AND THEN DISSIPATE OVER LAND. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 290600Z IS 32 FEET. NEXT WARNINGS AT 291500Z, 292100Z, 300300Z AND 300900Z.//