Cyclocane

( cyclocane is a CYCLOne and hurriCANE tracker by hayley )

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CO-MAY Current Status

Current Wind Speed 35 knots / 40 MPH

Max Predicted Wind Speed 35 knots / 40 MPH at 2025-07-30T12:00:00.000Z

CO-MAY Land Hazards

Northwest Pacific Weather Warnings

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

CO-MAY Tracker

CO-MAY Satellite Loop

CO-MAY Alternate Tracking Map

CO-MAY Spaghetti Models

Spaghetti models for CO-MAY can be found here:

CO-MAY spaghetti models page »

CO-MAY Watches and Warnings

TROPICAL STORM CO-MAY Tropical Cyclone Update

TROPICAL STORM CO-MAY Public Advisory

WTPN33 PGTW 301500
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL STORM 11W (CO-MAY) WARNING NR 031//
RMKS/
1. TROPICAL STORM 11W (CO-MAY) WARNING NR 031    
   02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   301200Z --- NEAR 31.2N 121.4E
     MOVEMENT PAST SIX HOURS - 325 DEGREES AT 06 KTS
     POSITION ACCURATE TO WITHIN 030 NM
     POSITION BASED ON CENTER LOCATED BY A COMBINATION OF 
     SATELLITE AND SYNOPTIC DATA
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 034 KT WINDS - 100 NM NORTHEAST QUADRANT
                            070 NM SOUTHEAST QUADRANT
                            065 NM SOUTHWEST QUADRANT
                            090 NM NORTHWEST QUADRANT
   REPEAT POSIT: 31.2N 121.4E
    ---
   FORECASTS:
   12 HRS, VALID AT:
   310000Z --- 31.9N 120.1E
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
   VECTOR TO 24 HR POSIT: 295 DEG/ 05 KTS
    ---
   24 HRS, VALID AT:
   311200Z --- 32.3N 119.0E
   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
   VECTOR TO 36 HR POSIT: 290 DEG/ 03 KTS
    ---
   36 HRS, VALID AT:
   010000Z --- 32.5N 118.3E
   MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
    ---
REMARKS:
301500Z POSITION NEAR 31.4N 121.1E.
30JUL25. TROPICAL STORM 11W (CO-MAY), LOCATED APPROXIMATELY 5 NM
WEST OF SHANGHAI, CHINA, HAS TRACKED NORTHWESTWARD AT 06 KNOTS
OVER THE PAST SIX HOURS.3 ANIMATED ENHANCED INFRARED IMAGERY
(EIR) REVEALS THE BROAD AND RAGGED CIRCULATION OF TROPICAL STORM
(TS) 11W DEGRADING OVER THE COAST. A DEEP-LAYER TROUGH TO THE
NORTH STRONGLY ENHANCES POLEWARD OUTFLOW, BUT ALSO INTRODUCES
UNFAVORABLE HIGH VERTICAL WIND SHEAR. TS 11W WILL CONTINUE TO
DISSIPATE FOR THE NEXT 36 HOURS DUE TO TOPOGRAPHIC INTERACTION.
IT IS POSSIBLE THAT THE REMNANTS OF TS 11W WILL TRACK INTO THE
YELLOW SEA, BUT THERE IS LOW LIKELIHOOD OF REDEVELOPMENT DUE TO
UNFAVORABLE DRY AIR, HIGH VERTICAL WIND SHEAR, AND UPPER-LEVEL
TROUGHING. 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 301200Z IS 979 
MB. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 301200Z IS 17 FEET. REFER TO 
TROPICAL STORM 12W (KROSA) WARNINGS (WTPN31 PGTW) FOR SIX-HOURLY 
UPDATES.
//
NNNN

Public Advisory not available for this storm.

TROPICAL STORM CO-MAY Forecast Discussion

Forecast Discussion not available for this storm.

CO-MAY storm path from JTWC

Time	Speed	Location	Status
2025-07-30T12:00:00.000Z	35 knots	31.2, 121.4
2025-07-31T00:00:00.000Z	30 knots	31.9, 120.1	dissipating
2025-07-31T12:00:00.000Z	25 knots	32.3, 119.0	dissipating
2025-08-01T00:00:00.000Z	20 knots	32.5, 118.3	dissipated

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