Tropical Storm "Andres" formed at 15:00 UTC on May 9, 2021, as the earliest eastern Pacific Ocean named storm on record. The previous record was held by Adrian which formed on May 10, 2017. There is no threat to land from this storm and Andres is expected to become a remnant low by Tuesday, May 11.
At the time it formed, the center of Tropical Storm "Andres" was located about 1 000 km (620 miles) SSE of the southern tip of Baja California. It was moving NW at 9 km/h (6 mph) and had a minimum central pressure of 1 005 hPa.
At 03:00 UTC on May 10, its center was located about 960 km (595 miles) S of the southern tip of Baja California. The storm had maximum sustained winds of 65 km/h (40 mph) and a minimum central pressure of 1005 hPa. It was still moving NW at 9 km/h (6 mph).
This general motion is expected to continue through Monday, followed by a turn toward the west by late Tuesday, May 11.
Gradual weakening is expected to begin on Monday, with the system becoming a remnant low on Tuesday.
Tropical-storm-force winds extend outward up to 130 km (80 miles).
Andres remains a ragged-looking tropical cyclone, NHC forecaster Brown noted.
The majority of the deep convection is displaced well to the east of the low-level center and there is little evidence of banding features.
Increasing southwesterly vertical wind shear and dry mid-level air should cause Andres to begin to weaken overnight or on Monday, if that weakening trend has not already begun.
Andres is forecast to move into an area of even higher shear by Monday night or early Tuesday, and this should cause the cyclone to become a remnant low in about 36 hours.
Thereafter, the cyclone is forecast to gradually spin down and dissipate by Wednesday as indicated by the global models.
Tropical Storm "Andres" at 22:30 UTC on May 10, 2021. Credit: NOAA/GOES-East, RAMMB/CIRA, TW
When Andres formed on May 9, it became is the eastern Pacific's earliest named storm in the satellite era (since the mid-1960s), breaking the previous record by 12 hours. The previous record was held by Tropical Storm "Adrian" which formed on May 10, 2017.
The eastern Pacific hurricane season runs from May 15 to November 30.
Featured image: Tropical Storm "Andres" at 22:30 UTC on May 10, 2021. Credit: NOAA/GOES-East, RAMMB/CIRA, TW
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