TROPICAL STORM KOPPU

[AussieMark]

WTPN31 PGTW 272100
MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TROPICAL STORM 17W (KOPPU) WARNING NR 014
01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
---
WARNING POSITION:
271800Z8 --- NEAR 24.4N0 139.9E2
MOVEMENT PAST SIX HOURS - 010 DEGREES AT 10 KTS
POSITION ACCURATE TO WITHIN 060 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT
RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT
035 NM SOUTHEAST QUADRANT
035 NM SOUTHWEST QUADRANT
040 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT
130 NM SOUTHEAST QUADRANT
150 NM SOUTHWEST QUADRANT
170 NM NORTHWEST QUADRANT
REPEAT POSIT: 24.4N0 139.9E2
---
FORECASTS:
12 HRS, VALID AT:
280600Z6 --- 26.5N3 140.7E2
MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
RADIUS OF 050 KT WINDS - 050 NM
RADIUS OF 034 KT WINDS - 160 NM NORTHEAST QUADRANT
150 NM SOUTHEAST QUADRANT
150 NM SOUTHWEST QUADRANT
150 NM NORTHWEST QUADRANT
VECTOR TO 24 HR POSIT: 035 DEG/ 13 KTS
---
24 HRS, VALID AT:
281800Z9 --- 28.6N6 142.3E0
MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT
RADIUS OF 050 KT WINDS - 070 NM
RADIUS OF 034 KT WINDS - 180 NM NORTHEAST QUADRANT
180 NM SOUTHEAST QUADRANT
160 NM SOUTHWEST QUADRANT
180 NM NORTHWEST QUADRANT
VECTOR TO 36 HR POSIT: 040 DEG/ 16 KTS
---
36 HRS, VALID AT:
290600Z7 --- 31.1N5 144.7E6
MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT
RADIUS OF 050 KT WINDS - 080 NM
RADIUS OF 034 KT WINDS - 180 NM NORTHEAST QUADRANT
180 NM SOUTHEAST QUADRANT
160 NM SOUTHWEST QUADRANT
180 NM NORTHWEST QUADRANT
VECTOR TO 48 HR POSIT: 045 DEG/ 21 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
291800Z0 --- 34.0N7 148.2E5
MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
BECOMING EXTRATROPICAL
RADIUS OF 050 KT WINDS - 080 NM
RADIUS OF 034 KT WINDS - 180 NM NORTHEAST QUADRANT
170 NM SOUTHEAST QUADRANT
160 NM SOUTHWEST QUADRANT
170 NM NORTHWEST QUADRANT
VECTOR TO 72 HR POSIT: 045 DEG/ 26 KTS
---
72 HRS, VALID AT:
301800Z2 --- 40.7N1 158.2E6
MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
BECOMING EXTRATROPICAL
RADIUS OF 050 KT WINDS - 055 NM
RADIUS OF 034 KT WINDS - 175 NM NORTHEAST QUADRANT
165 NM SOUTHEAST QUADRANT
150 NM SOUTHWEST QUADRANT
165 NM NORTHWEST QUADRANT
VECTOR TO 96 HR POSIT: 065 DEG/ 28 KTS
---
LONG RANGE OUTLOOK:
NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 250 NM
ON DAY 4 AND 350 NM ON DAY 5... AND FOR INTENSITY
NEAR 20 KT EACH DAY.
---
96 HRS, VALID AT:
011800Z0 --- 44.4N2 172.5E5
MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
EXTRATROPICAL
---
REMARKS:
272100Z2 POSITION NEAR 24.9N5 140.1E6.
TROPICAL STORM (TS) 17W (KOPPU), LOCATED APPROXIMATELY 78 NM WEST-
SOUTHWEST OF IWO JIMA, HAS MOVED NORTHWARD AT 10 KNOTS OVER THE
PAST 06 HOURS. THE WARNING POSITION IS BASED ON 271730Z0 ENHANCED
INFRARED SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON
SATELLITE CURRENT INTENSITY ESTIMATES OF 55 AND 65 KNOTS. ANIMATED
ENHANCED INFRARED SATELLITE IMAGERY INDICATES THAT CONVECTION HAS
DECREASED OVER THE PAST 6 HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT
271800Z8 IS 18 FEET. REFER TO WWPW31 RJTX FOR ADDITIONAL SEA HEIGHT
INFORMATION. NEXT WARNINGS AT 280300Z3, 280900Z9, 281500Z6, AND
282100Z3.//

[Anonymous]

No threat to any landmasses. Good sign of a trough in the east in 2 weeks though. Ready for the SPAC season wxwatcher?

[AussieMark]

yeah roughly 1-2 months to go. Can't remeber exactually i do know its in full flight by Christmas most years.