The US Navy does a good job of telling us about typhoons (Pacific North of the Equator) & cyclones (Pacific South) of the Equator
https://www.metoc.navy.mil/jtwc/jtwc.htmlInvest 91B likely to hit North India or Bangladesh, which is just a series of deltas & already in deep trouble with sea level rise.
https://www.metoc.navy.mil/jtwc/products/io9120web.txtWTIO21 PGTW 151000
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE FORMATION ALERT//
RMKS/
1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN
140 NM EITHER SIDE OF A LINE FROM 9.0N 86.3E TO 12.8N 85.0E
WITHIN THE NEXT 12 TO 24 HOURS. AVAILABLE DATA DOES NOT JUSTIFY
ISSUANCE OF NUMBERED TROPICAL CYCLONE WARNINGS AT THIS TIME.
WINDS IN THE AREA ARE ESTIMATED TO BE 15 TO 20 KNOTS. METSAT
IMAGERY AT 150900Z INDICATES THAT A CIRCULATION CENTER IS LOCATED
NEAR 9.4N 86.2E. THE SYSTEM IS MOVING NORTHWESTWARD AT 03 KNOTS.
2. REMARKS: THE AREA OF CONVECTION (INVEST 91B) PREVIOUSLY LOCATED
NEAR 10.5N 87.6E IS NOW LOCATED NEAR 9.4N 86.2E, APPROXIMATELY 602
NM SOUTH-SOUTHEAST OF VISAKHAPATNAM, INDIA. ANIMATED MULTISPECTRAL
IMAGERY AND A 150746Z GMI 89GHZ SATELLITE IMAGE DEPICT DEEP
CONVECTIVE BANDS IN THE SOUTHERN PERIPHERY WRAPPING INTO AN OBSCURED
LOW LEVEL CIRCULATION CENTER. ENVIRONMENTAL ANALYSES INDICATE A
FAVORABLE ENVIRONMENT FOR DEVELOPMENT WITH LOW (<15KTS) VERTICAL
WIND SHEAR, WARM (30-31C) SEA SURFACE TEMPERATURES, AND GOOD
POLEWARD OUTFLOW. GLOBAL MODELS AGREE THAT 91B WILL TRACK NORTH-
NORTHEASTWARD AS IT STRENGTHENS AND CONSOLIDATES. MAXIMUM SUSTAINED
SURFACE WINDS ARE ESTIMATED AT 15 TO 20 KNOTS. MINIMUM SEA LEVEL
PRESSURE IS ESTIMATED TO BE NEAR 1003 MB. THE POTENTIAL FOR THE
DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24
HOURS IS HIGH.
3. THIS ALERT WILL BE REISSUED, UPGRADED TO WARNING OR CANCELLED BY
161000Z.//
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