#363 Postby Chacor » Fri Aug 26, 2011 4:06 am
JTWC agrees, 135 kt, but new forecast peak is 145 kt.
WTPN31 PGTW 260900
MSGID/GENADMIN/NAVMARFCSTCEN PEARL HARBOR HI/JTWC//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. SUPER TYPHOON 14W (NANMADOL) WARNING NR 015
02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
260600Z --- NEAR 17.2N 123.6E
MOVEMENT PAST SIX HOURS - 330 DEGREES AT 06 KTS
POSITION ACCURATE TO WITHIN 020 NM
POSITION BASED ON EYE FIXED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 135 KT, GUSTS 165 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 050 NM NORTHEAST QUADRANT
050 NM SOUTHEAST QUADRANT
050 NM SOUTHWEST QUADRANT
050 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT
080 NM SOUTHEAST QUADRANT
080 NM SOUTHWEST QUADRANT
080 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 145 NM NORTHEAST QUADRANT
135 NM SOUTHEAST QUADRANT
115 NM SOUTHWEST QUADRANT
120 NM NORTHWEST QUADRANT
REPEAT POSIT: 17.2N 123.6E
---
FORECASTS:
12 HRS, VALID AT:
261800Z --- 18.2N 123.0E
MAX SUSTAINED WINDS - 140 KT, GUSTS 170 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 060 NM NORTHEAST QUADRANT
060 NM SOUTHEAST QUADRANT
060 NM SOUTHWEST QUADRANT
060 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 090 NM NORTHEAST QUADRANT
090 NM SOUTHEAST QUADRANT
090 NM SOUTHWEST QUADRANT
090 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT
150 NM SOUTHEAST QUADRANT
110 NM SOUTHWEST QUADRANT
120 NM NORTHWEST QUADRANT
VECTOR TO 24 HR POSIT: 340 DEG/ 06 KTS
---
24 HRS, VALID AT:
270600Z --- 19.4N 122.5E
MAX SUSTAINED WINDS - 145 KT, GUSTS 175 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 050 NM NORTHEAST QUADRANT
050 NM SOUTHEAST QUADRANT
050 NM SOUTHWEST QUADRANT
050 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT
080 NM SOUTHEAST QUADRANT
080 NM SOUTHWEST QUADRANT
080 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT
140 NM SOUTHEAST QUADRANT
140 NM SOUTHWEST QUADRANT
140 NM NORTHWEST QUADRANT
VECTOR TO 36 HR POSIT: 350 DEG/ 05 KTS
---
36 HRS, VALID AT:
271800Z --- 20.4N 122.3E
MAX SUSTAINED WINDS - 140 KT, GUSTS 170 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 050 NM NORTHEAST QUADRANT
050 NM SOUTHEAST QUADRANT
050 NM SOUTHWEST QUADRANT
050 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT
080 NM SOUTHEAST QUADRANT
080 NM SOUTHWEST QUADRANT
080 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT
140 NM SOUTHEAST QUADRANT
120 NM SOUTHWEST QUADRANT
140 NM NORTHWEST QUADRANT
VECTOR TO 48 HR POSIT: 360 DEG/ 06 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
280600Z --- 21.5N 122.3E
MAX SUSTAINED WINDS - 135 KT, GUSTS 165 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 050 NM NORTHEAST QUADRANT
050 NM SOUTHEAST QUADRANT
045 NM SOUTHWEST QUADRANT
045 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT
080 NM SOUTHEAST QUADRANT
070 NM SOUTHWEST QUADRANT
070 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT
150 NM SOUTHEAST QUADRANT
140 NM SOUTHWEST QUADRANT
140 NM NORTHWEST QUADRANT
VECTOR TO 72 HR POSIT: 015 DEG/ 03 KTS
---
72 HRS, VALID AT:
290600Z --- 22.5N 122.6E
MAX SUSTAINED WINDS - 120 KT, GUSTS 145 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 050 NM NORTHEAST QUADRANT
050 NM SOUTHEAST QUADRANT
045 NM SOUTHWEST QUADRANT
045 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT
080 NM SOUTHEAST QUADRANT
070 NM SOUTHWEST QUADRANT
070 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT
150 NM SOUTHEAST QUADRANT
140 NM SOUTHWEST QUADRANT
120 NM NORTHWEST QUADRANT
VECTOR TO 96 HR POSIT: 030 DEG/ 03 KTS
---
LONG RANGE OUTLOOK:
---
96 HRS, VALID AT:
300600Z --- 23.5N 123.2E
MAX SUSTAINED WINDS - 110 KT, GUSTS 135 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 120 HR POSIT: 055 DEG/ 05 KTS
---
120 HRS, VALID AT:
310600Z --- 24.6N 124.9E
MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT
WIND RADII VALID OVER OPEN WATER ONLY
---
REMARKS:
260900Z POSITION NEAR 17.5N 123.5E.
SUPER TYPHOON (STY) 14W (NANMADOL), LOCATED APPROXIMATELY 605 NM
SOUTH-SOUTHWEST OF KADENA AB, JAPAN, HAS TRACKED NORTH-NORTHWEST-
WARD AT 06 KNOTS OVER THE PAST SIX HOURS. ANIMATED MULTISPECTRAL
SATELLITE IMAGERY SHOWS THE SYSTEM HAS MAINTAINED HIGHLY SYMMETRIC
DEEP CONVECTIVE BANDS WRAPPED TIGHTLY INTO A 17 NM DIAMETER EYE.
THE INITIAL INTENSITY OF 135 KNOTS IS BASED ON A UNIFIED PGTW, KNES,
AND RJTD DVORAK ESTIMATE. ANIMATED WATER VAPOR IMAGERY DEPICTS A
POLEWARD OUTFLOW CHANNEL INTO A TROPICAL UPPER TROPOSPHERIC TROUGH
CELL TO THE NORTH AND EXCELLENT DIFFLUENCE ALONG THE REMAINING
PERIPHERIES. STY 14W HAS BEGUN TO TRACK MORE POLEWARD ALONG THE
NORTHWEST PERIPHERY OF A NEAR EQUATORIAL RIDGE (NER) SOUTHEAST
IN RESPONSE TO AN APPROACHING MID-LATITUDE TROUGH TO THE NORTHWEST.
THIS TROUGH HAS WEAKENED THE SUBTROPICAL RIDGE TO THE NORTH THAT WAS
PREVIOUSLY STEERING THE CYLONE WESTWARD. STY 14W SHOULD CONTINUE TO
INTENSIFY OVER THE NEXT 24 HOURS AND THEN WEAKEN GRADUALLY AS IT
GAINS LATITUDE INTO SLIGHTLY HIGHER VERTICAL WIND SHEAR. NUMERICAL
MODEL GUIDANCE IS IN OVERALL GOOD AGREEMENT UP TO TAU 72 WHERE THE
MODELS FAN OUT WITH WBAR AS THE LEFTMOST AND GFS THE RIGHTMOST
OUTLIERS. THIS IS AN INDICATION OF POSSIBLE WEAK STEERING AFTER THE
SYSTEM CRESTS THE NORTHWEST EXTENSION OF THE STEERING NER. THIS
TRACK FORECAST IS IN LINE WITH CONSENSUS TOWARDS A NORTHEAST
RECURVATURE. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 260600Z IS 30 FEET.
NEXT WARNINGS AT 261500Z, 262100Z, 270300Z AND 270900Z. REFER TO
TROPICAL STORM 15W (TALAS) WARNINGS (WTPN32 PGTW) FOR SIX-HOURLY
UPDATES.//
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