Cyclocane

( cyclocane is a CYCLOne and hurriCANE tracker by hayley )

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This is the final warning / advisory for this storm as it has weakened below warning levels and/or the storm system is no longer a tropical cyclone.

Go to the main page to see active storms.

PRAPIROON Current Status

Current Wind Speed 35 knots / 40 MPH

Max Predicted Wind Speed 35 knots / 40 MPH at

PRAPIROON Land Hazards

Northwest Pacific Weather Warnings
Taiwan Central Weather Bureau: typhoon news  
Hong Kong Observatory: no warnings
China Meteorological Administration: no warnings

PRAPIROON Tracker

PRAPIROON Satellite Loop

PRAPIROON Alternate Tracking Map

PRAPIROON Spaghetti Models

Spaghetti models for PRAPIROON can be found here:

PRAPIROON spaghetti models page »

PRAPIROON Watches and Warnings

TROPICAL STORM PRAPIROON Tropical Cyclone Update

TROPICAL STORM PRAPIROON Public Advisory

WTPN31 PGTW 041500
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TROPICAL STORM 09W (PRAPIROON) WARNING NR 025    
   02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   041200Z --- NEAR 40.7N 136.8E
     MOVEMENT PAST SIX HOURS - 045 DEGREES AT 23 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
   WIND RADII VALID OVER OPEN WATER ONLY
   BECOMING EXTRATROPICAL
   RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT
                            120 NM SOUTHEAST QUADRANT
                            070 NM SOUTHWEST QUADRANT
                            060 NM NORTHWEST QUADRANT
   REPEAT POSIT: 40.7N 136.8E
    ---
   FORECASTS:
   12 HRS, VALID AT:
   050000Z --- 42.1N 141.3E
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   EXTRATROPICAL
   VECTOR TO 24 HR POSIT: 070 DEG/ 29 KTS
    ---
   24 HRS, VALID AT:
   051200Z --- 43.9N 148.9E
   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   EXTRATROPICAL
    ---
REMARKS:
041500Z POSITION NEAR 41.0N 137.9E.
TROPICAL STORM 09W (PRAPIROON), LOCATED APPROXIMATELY 201 NM WEST
OF MISAWA, JAPAN, HAS TRACKED NORTHEASTWARD AT 23 KNOTS OVER THE
PAST SIX HOURS. THE INITIAL POSITION IS PLACED WITH LOW CONFIDENCE 
BASED ON INFRARED SATELLITE IMAGERY WHICH DEPICTS A RAGGED, 
ELONGATED, OBSCURED LOW LEVEL CIRCULATION CENTER (LLCC) WITH 
LIMITED DEEP CONVECTION AND AN ASYMMETRIC CLOUD FIELD PRIMARILY ON 
THE NORTHERN SECTOR OF THE SYSTEM. THE INITIAL INTENSITY OF 35 
KNOTS IS BASED ON A 041110Z ASCAT PASS REVEALING ONLY ISOLATED 35 
KT WIND BARBS, AND A BROADER FIELD OF 30 KT WINDS. THE INITIAL 
INTENSITY IS IN AGREEMENT WITH THE CURRENT INTENSITY ESTIMATE OF 
T2.5 (35 KTS) FROM PGTW, AND BELOW A 040922Z SATCON ESTIMATE OF 50 
KTS. ENVIRONMENTAL ANALYSIS SHOWS OUTFLOW FROM TS 09W IS NOW BEING 
STIFLED BY THE JET DIRECTLY OVERHEAD, AND IT IS EXPERIENCING STRONG 
VERTICAL WIND SHEAR (30-40 KNOTS), LEADING TO RAPID WEAKENING AND 
DISINTEGRATION OF ITS CONVECTIVE STRUCTURE. SEA SURFACE 
TEMPERATURES ARE BELOW 26 DEGREES CELSIUS AND ARE NO LONGER 
FAVORABLE FOR TROPICAL CYCLONE DEVELOPMENT. TS 09W IS TRACKING 
NORTHEASTWARD AND ACCELERATING, CARRIED ALONG BY A WESTERLY 
MIDLATITUDE TROUGH. TS 09W WILL CONTINUE TO TRACK TOWARD THE 
NORTHEAST AND WEAKEN IN THE COLD SST AND HIGH SHEAR ENVIRONMENT 
UNDER THE MIDLATITUDE JET. TS 09W HAS BEGUN EXTRATROPICAL 
TRANSITION AND IS EXPECTED TO COMPLETE EXTRATROPICAL TRANSITION 
WHILE CONTINUING TO WEAKEN BY TAU 12. THERE IS HIGH CONFIDENCE IN 
THE JTWC FORECAST TRACK. THIS IS THE FINAL WARNING ON THIS SYSTEM 
BY THE JOINT TYPHOON WRNCEN PEARL HARBOR HI. THE SYSTEM WILL BE 
CLOSELY MONITORED FOR SIGNS OF REGENERATION. MAXIMUM SIGNIFICANT 
WAVE HEIGHT AT 041200Z IS 14 FEET. REFER TO TROPICAL STORM 10W 
(TEN) WARNINGS (WTPN32 PGTW) FOR SIX-HOURLY UPDATES.//
NNNN

Public Advisory not available for this storm.

TROPICAL STORM PRAPIROON Forecast Discussion

Forecast Discussion not available for this storm.

PRAPIROON storm path from JTWC

Time Speed Location Status
35 knots 40.7, 136.8
30 knots 42.1, 141.3
25 knots 43.9, 148.9


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