First Tropical Wave of 2022?

[cycloneye]

Not yet introduced by TAFB but this area caught my eye near 45W south of 10N. They have broken lines but without saying what it is. Both GFS and ECMWF have a good deal of rain for the NE Caribbean islands including PR and DR on April 30/May 1. First Tropical Wave poll.

[InfernoFlameCat]

Another system off Africa looked potent a couple days ago. Its not gonna survive in the ocean but the monsoon seems to be waking up.

[AnnularCane]

They're all waves to me!

[NotSparta]

Looks like it's just marked as a trough rather than a tropical wave

[cycloneye]

Surface trough.

. A
surface trough is analyzed along 46W and extends from near the
equator to 07N. Isolated moderate convection is found S of the
monsoon trough and E of 20W. Scattered moderate to isolated
strong convection is noted S of 08N and between 24W and 49W.

[AJC3]

Despite nothing being mentioned in the Atlantic TWDATs since the start of May, one could pretty easily make the case for a low amplitude tropical wave having already propagated westward along the ITCZ from late April through today (see the ongoing convection off the north coast of SOAM). The CIMSS Wavetrak page, which overlays IR imagery and satellite derived winds and allows you to create a 5 or 10-day time lapse, shows this pretty well

https://tropic.ssec.wisc.edu/real-time/ ... l5new.html

While the AEJ doesn't pick up steam until the latter part of the hurricane season, it does exist year-round, being much weaker and located more equatorward from winter through spring. Once it reaches a position reasonably close to the SW portion of continental Africa that lies north of the equator, it can begin to spit out weak low amplitude waves (more like ripples) offshore into (and sometime across) the ITCZ.

[zzh]