Subject: Indian-S: 03 Active Tropical Cyclones In Southern Hemisphere

From: SIU Weather Processor <[email-masked]>
Date: Tue, 30 Jan 2001 03:22:34 -0600

201
WTXS31 PGTW 300900
1. TROPICAL CYCLONE 07S (TERRI) WARNING NR 003
03 ACTIVE TROPICAL CYCLONES IN SOUTHERN HEMISPHERE
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
---
WARNING POSITION:
300600Z9 --- NEAR 17.5S3 119.7E8
MOVEMENT PAST SIX HOURS - 235 DEGREES AT 07 KTS
POSITION ACCURATE TO WITHIN 060 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
REPEAT POSIT: 17.5S3 119.7E8
---
FORECASTS:
12 HRS, VALID AT:
301800Z2 --- 17.9S7 118.6E6
MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
RADIUS OF 035 KT WINDS - 060 NM NORTHWEST SEMICIRCLE

030 NM SOUTHEAST SEMICIRCLE
VECTOR TO 24 HR POSIT: 255 DEG/ 05 KTS
---
24 HRS, VALID AT:
310600Z0 --- 18.2S1 117.5E4
MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
RADIUS OF 035 KT WINDS - 065 NM WEST SEMICIRCLE

035 NM EAST SEMICIRCLE
VECTOR TO 36 HR POSIT: 220 DEG/ 06 KTS
---
36 HRS, VALID AT:
311800Z3 --- 19.1S1 116.7E5
MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
RADIUS OF 050 KT WINDS - 030 NM SOUTHEAST SEMICIRCLE

020 NM NORTHWEST SEMICIRCLE
RADIUS OF 035 KT WINDS - 075 NM SOUTHEAST SEMICIRCLE

045 NM NORTHWEST SEMICIRCLE
VECTOR TO 48 HR POSIT: 190 DEG/ 08 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
010600Z7 --- 20.7S9 116.4E2
MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT
RADIUS OF 050 KT WINDS - 035 NM SOUTHEAST SEMICIRCLE

OVER WATER
025 NM NORTHWEST SEMICIRCLE
OVER WATER
RADIUS OF 035 KT WINDS - 085 NM SOUTHEAST SEMICIRCLE

OVER WATER
050 NM NORTHWEST SEMICIRCLE
OVER WATER
VECTOR TO 72 HR POSIT: 160 DEG/ 12 KTS
---
72 HRS, VALID AT:
020600Z8 --- 25.2S9 118.3E3
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
---
REMARKS:
300900Z2 POSITION NEAR 17.6S4  119.4E5. TROPICAL
CYCLONE (TC) 07S (TERRI), LOCATED APPROXIMATELY 430 NM
SOUTHWEST OF LEARMONTH AUSTRALIA HAS TRACKED WEST-
SOUTHWEST AT 06 KNOTS DURING THE PAST 06 HOURS. THE
WARNING POSITION IS BASED ON 300530Z1 ANIMATED
VISIABLE AND INFRARED SATELLITE IMAGERY. THE WARNING
INTENSITY IS BASED ON SATELLITE CURRENT ESTIMATES OF
35 KNOTS. ANIMATED SATELLITE IMAGERY SHOWS DEEP
CONVECTION SLIGHTLY WEST OF THE LOW-LEVEL CIRCULATION
CENTER (LLCC). A 300130Z7 SPECIAL SENSOR MICROWAVE
IMAGER (SSMI) PASS INDICATED WEAK CONVECTIVE SPIRAL
BANDING AROUND A POORLY DEFINED VORTEX. 300 AND 500 MB
ANALYSIS INDICATES THE SYSTEM IS EQUATORWARD OF THE
RIDGE AXIS IN AN AREA OF WEAK TO MODERATE VERTICAL
WIND SHEAR. THE SYSTEM IS EXPECTED TO CONTINUE TO MOVE
WEST SOUTHWEST AND INTENSIFY SLOWLY THEN RECURVE TO
THE SOUTH AS THE MID LEVEL RIDGE IN RESPONSE TO AN
APPROACHING MID LATITUDE TROUGH. MAXIMUM SIGNIFICANT
WAVE HEIGHT AT 306000Z9 IS 10 FEET. REFER TO NEXT
WARNINGS AT 302100Z6 (DTG 301951Z9) AND 310900Z3 (DTG
310751Z7). REFER TO TROPICAL CYCLONE  07S (TERRI)
WARNINGS (WTXS31 PGTW) FOR TWELVE-HOURLY UPDATES.
2. THIS IS A PRODUCT OF THE ALTERNATE JOINT TYPHOON
WARNING CENTER, YOKOSUKA, JAPAN. QUESTIONS SHOULD BE
DIRECTED TO THE TYPHOON DUTY OFFICER AT NPMOC YOKOSUKA
DSN 243-8872.//

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