WTXS31 PGTW 270300
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE 08S (CANDICE) WARNING NR 005//
RMKS/
1. TROPICAL CYCLONE 08S (CANDICE) WARNING NR 005
02 ACTIVE TROPICAL CYCLONES IN SOUTHIO
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
270000Z --- NEAR 27.5S 60.9E
MOVEMENT PAST SIX HOURS - 220 DEGREES AT 05 KTS
POSITION ACCURATE TO WITHIN 050 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS - 115 NM NORTHEAST QUADRANT
290 NM SOUTHEAST QUADRANT
200 NM SOUTHWEST QUADRANT
150 NM NORTHWEST QUADRANT
REPEAT POSIT: 27.5S 60.9E
---
FORECASTS:
12 HRS, VALID AT:
271200Z --- 29.5S 59.7E
MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
RADIUS OF 034 KT WINDS - 020 NM NORTHEAST QUADRANT
210 NM SOUTHEAST QUADRANT
150 NM SOUTHWEST QUADRANT
060 NM NORTHWEST QUADRANT
VECTOR TO 24 HR POSIT: 190 DEG/ 12 KTS
---
24 HRS, VALID AT:
280000Z --- 31.8S 59.1E
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
---
REMARKS:
270300Z POSITION NEAR 28.0S 60.6E.
27JAN24. TROPICAL CYCLONE 08S (CANDICE), LOCATED APPROXIMATELY
520 NM SOUTHEAST OF ST DENIS, HAS TRACKED SOUTHWESTWARD AT 05
KNOTS OVER THE PAST SIX HOURS. MINIMUM CENTRAL PRESSURE AT
270000Z IS 990 MB. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 270000Z
IS 20 FEET. NEXT WARNINGS AT 271500Z. REFER TO TROPICAL CYCLONE
06S (ANGGREK) WARNINGS (WTXS32 PGTW) FOR TWELVE-HOURLY UPDATES.//
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WDXS31 PGTW 270300
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/PROGNOSTIC REASONING FOR TROPICAL CYCLONE 08S (CANDICE)
WARNING NR 005//
RMKS/
1. FOR METEOROLOGISTS.
2. 6 HOUR SUMMARY AND ANALYSIS.
SUMMARY:
INITIAL POSITION: 27.5S 60.9E
INITIAL INTENSITY: 40 KTS
GEOGRAPHIC REFERENCE: 520 NM SOUTHEAST OF ST DENIS
MOVEMENT PAST 6 HOURS: SOUTHWESTWARD AT 05 KTS
SIGNIFICANT WAVE HEIGHT: 20 FEET
SATELLITE ANALYSIS, INITIAL POSITION AND INTENSITY DISCUSSION:
ANIMATED ENHANCED INFRARED (EIR) SATELLITE IMAGERY DEPICTS AN
EXPOSED, BROAD LOW-LEVEL CIRCULATION CENTER (LLCC) DEVOID OF ANY
SIGNIFICANT DEEP CONVECTION. ADDITIONALLY, EIR IMAGERY SHOWS
EXTENSIVE STRATOCUMULUS, ASSOCIATED WITH DRIER, MORE STABLE AIR,
ADVECTING AROUND THE WESTERN AND NORTHERN QUADRANTS. THIS DRIER AIR
IS CLEARLY EVIDENT IN A 262106Z N20 ATMS 88.2 GHZ MICROWAVE IMAGE,
WITH A WEAKLY DEFINED LOW-LEVEL CIRCULATION. THE INITIAL POSITION
IS PLACED WITH MEDIUM CONFIDENCE BASED ON THE EIR IMAGERY. THE
INITIAL INTENSITY OF 40 KTS IS ASSESSED WITH MEDIUM CONFIDENCE
BASED ON THE CIMSS OBJECTIVE INTENSITY ESTIMATES, HEDGED SLIGHTLY
ABOVE THE SUBJECTIVE DVORAK ESTIMATES FROM KNES AND PGTW.
INITIAL WIND RADII BASIS: OBJECTIVE BEST TRACK
CURRENT STEERING MECHANISM: LOW- TO MID-LEVEL SUBTROPICAL RIDGE
(STR) POSITIONED TO THE EAST.
AGENCY DVORAK AND AUTOMATED FIXES:
PGTW: T2.5 - 35 KTS
KNES: T2.5 - 35 KTS
CIMSS ADT: 31 KTS AT 270100Z
CIMSS AIDT: 40 KTS AT 270100Z
CIMSS SATCON: 45 KTS AT 262030Z
FORECASTER ASSESSMENT OF CURRENT ENVIRONMENT: UNFAVORABLE
VWS: 10-15 KTS
SST: 25-26 CELSIUS
OUTFLOW: MODERATE POLEWARD
OTHER FACTORS: DRY AIR ENTRAINMENT
ANALYSIS CONFIDENCE:
INITIAL POSITION: MEDIUM
INITIAL INTENSITY: MEDIUM
INITIAL WIND RADII: LOW
3. FORECAST REASONING.
SIGNIFICANT FORECAST CHANGES: THERE ARE NO SIGNIFICANT CHANGES TO
THE FORECAST FROM THE PREVIOUS WARNING.
FORECAST DISCUSSION: TROPICAL CYCLONE (TC) 08S IS FORECAST TO TRACK
SOUTH-SOUTHWESTWARD TO SOUTHWARD THROUGH THE FORECAST PERIOD ALONG
THE WESTERN PERIPHERY OF THE LOW- TO MID-LEVEL STR. AFTER TAU 24,
THE REMNANTS OF THE SYSTEM WILL LIKELY STALL AND TRACK EQUATORWARD
AS A STRONG LOW-LEVEL RIDGE BUILDS TO THE SOUTH. THE SYSTEM WILL
STEADILY WEAKEN THROUGH THE FORECAST PERIOD WITHIN AN UNFAVORABLE
ENVIRONMENT.
MODEL DISCUSSION: NUMERICAL MODEL GUIDANCE IS IN GOOD AGREEMENT
THROUGH THE FORECAST PERIOD AND SUPPORTS THE JTWC TRACK FORECAST
WITH HIGH CONFIDENCE. RELIABLE INTENSITY GUIDANCE IS ALSO IN GOOD
AGREEMENT WITH ALL MODELS SHOWING A STEADY WEAKENING TREND.
FORECAST CONFIDENCE:
TRACK 0 - 72 HR: HIGH
INTENSITY 0 - 72 HR: HIGH//
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最后于 2024-01-27 10:55:00
被ygsj24编辑
,原因: