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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.

AMPHAN Current Status

Current Wind Speed 75 knots / 86 MPH

Max Predicted Wind Speed 75 knots / 86 MPH at

AMPHAN Land Hazards

India

No land hazards or hazard data not available for this storm.

AMPHAN Tracker

AMPHAN Satellite Loop

AMPHAN Alternate Tracking Map

AMPHAN Spaghetti Models

Spaghetti models for AMPHAN can be found here:

AMPHAN spaghetti models page »

AMPHAN Watches and Warnings

TROPICAL CYCLONE AMPHAN Tropical Cyclone Update

TROPICAL CYCLONE AMPHAN Public Advisory

WTIO31 PGTW 201500
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE 01B (AMPHAN) WARNING NR 018//
RMKS/
1. TROPICAL CYCLONE 01B (AMPHAN) WARNING NR 018    
   01 ACTIVE TROPICAL CYCLONE IN NORTHIO
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   201200Z --- NEAR 22.2N 88.3E
     MOVEMENT PAST SIX HOURS - 010 DEGREES AT 17 KTS
     POSITION ACCURATE TO WITHIN 025 NM
     POSITION BASED ON CENTER LOCATED BY A COMBINATION OF 
     SATELLITE AND RADAR
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
   RADIUS OF 064 KT WINDS - 010 NM NORTHEAST QUADRANT
                            015 NM SOUTHEAST QUADRANT
                            005 NM SOUTHWEST QUADRANT
                            000 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT
                            040 NM SOUTHEAST QUADRANT
                            035 NM SOUTHWEST QUADRANT
                            005 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 100 NM NORTHEAST QUADRANT
                            140 NM SOUTHEAST QUADRANT
                            100 NM SOUTHWEST QUADRANT
                            045 NM NORTHWEST QUADRANT
   REPEAT POSIT: 22.2N 88.3E
    ---
   FORECASTS:
   12 HRS, VALID AT:
   210000Z --- 24.3N 88.8E
   MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
   VECTOR TO 24 HR POSIT: 015 DEG/ 06 KTS
    ---
   24 HRS, VALID AT:
   211200Z --- 25.4N 89.1E
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
    ---
REMARKS:
201500Z POSITION NEAR 22.7N 88.4E.
20MAY20. TROPICAL CYCLONE (TC) 01B (AMPHAN), LOCATED APPROXIMATELY 25
NM SOUTH-SOUTHWEST OF KOLKATA, INDIA, HAS TRACKED NORTHWARD AT 17
KNOTS OVER THE PAST SIX HOURS. ANIMATED MULTISPECTRAL SATELLITE 
IMAGERY (MSI) AND ENHANCED INFRARED IMAGERY DEPICTS A SYSTEM WITH 
UNIFORM CENTRAL DENSE OVERCAST (CDO) THAT CONTINUES TO ERODE. TC 01B 
HAS NOW PASSED OVER LAND. THE INITIAL POSITION IS PLACED WITH GOOD 
CONFIDENCE BASED ON A 201120Z AMSU 89GHZ MICROWAVE IMAGE PASS WHICH 
SHOWS THAT THE STRONGEST REMAINING CONVECTION IS NOW LIMITED TO THE 
NORTHERN QUADRANT AND CONTINUES TO WEAKEN. RADAR DATA FROM INDIA 
SUPPORTS THE ASSESSMENT OF THE MICROWAVE DATA AND THE INITIAL 
POSITION. THE INITIAL INTENSITY IS ASSESSED WITH FAIR CONFIDENCE AT 75 
KNOTS BASED ON A PGTW CURRENT INTENSITY ESTIMATE OF T5.5 (102 KNOTS), 
AN ADVANCED DVORAK TECHNIQUE ESTIMATE OF T4.2 (61 KNOTS) JUST BEFORE 
LANDFALL. ADDITIONALLY, CALCUTTA OBSERVED A PRESSURE DROP MEASURED AT 
985MB WITHIN 4NM OF THE STORM PATH AT 201200Z. THE OVERALL ENVIRONMENT 
IS POOR WITH MODERATE TO STRONG (20 TO 25 KNOTS) VERTICAL WIND SHEAR 
(VWS) DESPITE GOOD POLEWARD OUTFLOW. THE SYSTEM CONTINUES TO TRACK 
NORTH-NORTHEASTWARD ALONG THE WESTERN PERIPHERY OF A DEEP-LAYER NER 
CENTERED TO THE EAST. THIS TRACK MOTION IS EXPECTED TO MAINTAIN 
THROUGH THE REMAINDER OF THE FORECAST PERIOD. SUSTAINED STRONG (25 
KNOTS) VWS SHEAR AND LAND INTERACTION WILL RAPIDLY WEAKEN TC 01B 
BEFORE IT DISSIPATES BY TAU 24. DYNAMIC GUIDANCE IS IN GOOD AGREEMENT 
THROUGHOUT THE FORECAST PERIOD, LENDING HIGH CONFIDENCE TO 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.//
NNNN

Public Advisory not available for this storm.

TROPICAL CYCLONE AMPHAN Forecast Discussion

Forecast Discussion not available for this storm.

AMPHAN storm path from JTWC

Time Speed Location Status
75 knots 22.2, 88.3 dissipating
50 knots 24.3, 88.8 dissipating
30 knots 25.4, 89.1 dissipated


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