Cyclocane

( cyclocane is a CYCLOne and hurriCANE tracker by hayley )

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IONA Current Status

Current Wind Speed 25 knots / 29 MPH

Max Predicted Wind Speed 25 knots / 29 MPH at 2025-08-02T06:00:00.000Z

IONA Land Hazards

Northwest Pacific Weather Warnings

Taiwan Central Weather Bureau: no warnings
Hong Kong Observatory: no warnings

IONA Tracker

IONA Satellite Loop

IONA Alternate Tracking Map

IONA Spaghetti Models

Spaghetti models for IONA can be found here:

IONA spaghetti models page »

IONA Watches and Warnings

TROPICAL DEPRESSION IONA Tropical Cyclone Update

TROPICAL DEPRESSION IONA Public Advisory

WTPN33 PGTW 020900
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL DEPRESSION 01C (IONA) WARNING NR 025//
RMKS/
1. TROPICAL DEPRESSION 01C (IONA) WARNING NR 025    
   03 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   020600Z --- NEAR 16.9N 179.7E
     MOVEMENT PAST SIX HOURS - 315 DEGREES AT 20 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   REPEAT POSIT: 16.9N 179.7E
    ---
   FORECASTS:
   12 HRS, VALID AT:
   021800Z --- 18.4N 176.7E
   MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
    ---
REMARKS:
020900Z POSITION NEAR 17.3N 178.9E.
02AUG25. TROPICAL DEPRESSION 01C (IONA), LOCATED APPROXIMATELY
761 NM EAST OF WAKE ISLAND, HAS TRACKED NORTHWESTWARD AT 20 KNOTS
OVER THE PAST SIX HOURS. ANIMATED MULTISPECTRAL SATELLITE IMAGERY 
(MSI) DEPICTS A FULLYL EXPOSED AND ELONGATED ROTATION CROSSING THE 
DATELINE AS OF 020600Z. ANIMATED WATER VAPOR IMAGERY CONFIRMS A TUTT-
CELL LOCATED NORTHWEST OF THE LOW LEVEL CIRCULATION CENTER (LLCC), 
WHICH PROVIDING MODERATE DIVERGENT OUTFLOW ALOFT, SUPPRORTING A RECENT 
FLARE UP IN CONVECTION. THE INITIAL POSITION IS ASSESSED WITH HIGH 
CONFIDENCE BASED ON THE LLCC IN THE MSI. THE INITIAL INTENSITY IS 
ASSESSED WITH HIGH CONFIDENCE BASED ON MULTIPLE OBJECTIVE AND 
SUBJECTIVE INTENSITY ESTIMATES AND AN EARLIER ASCAT PASS WHICH 
REVEALED WINDS BARELY REACHING 25 KNOTS TO THE FAR NORTH OF THE 
CENTER. ENVIRONMENTAL CONDITIONS ARE MARGINAL TO UNFAVORABLE, 
PARTICULARLY IN TERMS OF THE VWS, WHICH IS CURRENTLY ASSESSED AT OVER 
20 KNOTS. OVER THE NEXT 12 HOURS, TD 01C IS FORECAST TO TRACK WEST-
NORTHWESTWARD AND IN THE PROCESS WILL MOVE CLOSER TO THE TUTT-CELL, 
WHICH WILL INDUCE MODERATE TO HIGH VERTICAL WIND SHEAR AND INCREASING 
DRY AIR OVER THE LLCC. BOTH FACTORS WILL COMBINE TO HASTEN THE 
CONTINUED WEAKENING AND ULTIMATELY DISSIPATION OF TD 01C WITHIN THE 
NEXT 12 HOURS.
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. MINIMUM CENTRAL PRESSURE AT 020600Z IS
1008 MB. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 020600Z IS 11 FEET.
REFER TO TROPICAL STORM 12W (KROSA) WARNINGS (WTPN31 PGTW)
FOR SIX-HOURLY UPDATES.
REFER TO TROPICAL DEPRESSION 13W (THIRTEEN) WARNINGS (WTPN32 PGTW)
FOR SIX-HOURLY UPDATES.
//
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Public Advisory not available for this storm.

TROPICAL DEPRESSION IONA Forecast Discussion

Forecast Discussion not available for this storm.

IONA storm path from JTWC

Time	Speed	Location	Status
2025-08-02T06:00:00.000Z	25 knots	16.9, 179.7	dissipating
2025-08-02T18:00:00.000Z	20 knots	18.4, 176.7	dissipated

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