2009 edit
| Tropical storm (SSHWS/NWS) | |
 Unnamed storm at peak intensity | |
| Formed | May 21, 2009 |
|---|---|
| Dissipated | May 26, 2009 |
| (Remnant low after May 25, 2009) | |
| Highest winds | 1-minute sustained: 65 mph (100 km/h) |
| Lowest pressure | 995 mbar (hPa); 29.38 inHg |
After many hours of analysis, I can conclude a possible tropical storm may have formed in May of 2009. The system formed from a trough of low pressure. It rapidly organized into its own unnamed tropical cyclone. It made landfall on the 23rd of May. It become a extratropical/remnant low on the 25th and got eaten on the 26th. At peak, it clearly has some exposed circulation. It may have has a complete closed eyewall and circulation.
2020 edit
A potential subtropical storm may have formed in November before Iota in 2020.