簽到天數: 3291 天 [LV.Master]伴壇終老
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t02436|2015-3-13 15:57
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本帖最後由 t02436 於 2015-3-13 16:28 編輯
JTWC 06Z給出145Kts
FMS則是提升到130Kts
12小時內衝擊巔峰135Kts
** WTPS11 NFFN 130600 ***
TROPICAL DISTURBANCE ADVISORY NUMBER A24 ISSUED FROM RSMC NADI
Mar 13/0722 UTC 2015 UTC.
SEVERE TROPICAL CYCLONE PAM CENTRE [900HPA] CATEGORY 5 WAS LOCATED
NEAR 16.7S 168.7E AT 130600UTC. POSITION GOOD BASED ON HR GMS VIS/IR
IMAGERY AND PERIPHERAL SURFACE REPORTS. CYCLONE MOVING
SOUTH-SOUTHWEST AT ABOUT 08 KNOTS. MAXIMUM 10-MINUTE AVERAGE WINDS
NEAR THE CENTRE ESTIMATED AT ABOUT 130 KNOTS.
EXPECT WINDS OVER 63 KNOTS WITHIN 40 NAUTICAL MILES OF CENTRE.
EXPECT WINDS OVER 47 KNOTS WITHIN 90 NAUTICAL MILES IN NE QUADRANT,
AND WITHIN 90 NAUTICAL MILES IN SE QUADRANT,
AND WITHIN 70 NAUTICAL MILES IN SW QUADRANT,
AND WITHIN 70 NAUTICAL MILES IN NW QUADRANT.
EXPECT WINDS OVER 33 KNOTS WITHIN 210 NAUTICAL MILES IN NE QUADRANT
AND WITHIN 180 NAUTICAL MILES IN SE QUADRANT
AND WITHIN 110 NAUTICAL MILES IN SW QUADRANT
AND WITHIN 180 NAUTICAL MILES IN NW QUADRANT
EYE WELL DEFINED. SYSTEM LIES IN A LOW SHEARED ENVIRONMENT WITH
STRONG UPPER DIVERGENCE. OUTFLOW GOOD. PAM IS BEING STEERED
SOUTH-SOUTHWEST BY THE SUBTROPICAL RIDGE TO THE EAST. CYCLONIC
CIRCULATION EXTENDS TO 200HPA. SST AROUND 30 DEGREES CELSIUS. DVORAK
ANALYSIS BASED ON EYE PATTERN WITH OW EYE, COLD DARK GREY SURROUND,
YIELDS DT=7.0, MET =7.0 AND PT=6.5. FT BASED ON DT, THUS YIELDING
T7.0/7.0/D1.0/24HRS.
GLOBAL MODEL AGREE ON A SOUTHERLY MOVEMENT WITH FURTHER
INTENSIFICATION AND GRADUAL WEAKENING.
FORECASTS :
AT 12 HRS VALID AT 131800 UTC 19.0S 169.0E MOV AT 03KT WITH 135 KT
CLOSE TO CENTRE
AT 24 HRS VALID AT 140600 UTC 22.1S 170.3E MOV AT 03KT WITH 120 KT
CLOSE TO CENTRE
OUTLOOK :
AT 36 HRS VALID AT 141800 UTC 25.6S 172.7E MOV AT 03KT WITH 100 KT
CLOSE TO CENTRE
AT 48 HRS VALID AT 150600 UTC 29.4S 175.8E MOV AT 03KT WITH 090 KT
CLOSE TO CENTRE
THE NEXT TROPICAL DISTURBANCE ADVISORY ON TROPICAL CYCLONE PAM WILL
BE ISSUED AROUND 131400 UTC.
維拉港實測972.5hPa
氣壓持續下探
今日Aqua
南北半球四旋共舞
維拉港實測網址
http://goo.gl/kqHV4l
四旋MASAT-IR
http://www.alanbanks.org.uk/MTSAT-IR.jpg
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