Tropical Storm Dolly Now A Post-Tropical Remnant Low

Tropical Storm Dolly has been downgraded into a Post-Tropical remnant low-pressure system. It was the 3rd earliest 4th Atlantic named storm formation on record (since 1851). Dolly was also the first June Atlantic named storm to track north of 40°N since Hurricane Chris in 2012.

At 11:00 AM AST, the center of Post-Tropical Storm Dolly was located near latitude 42.5 North, longitude 57.8 West.

The post-tropical cyclone is moving toward the northeast near 16 MPH (26 KM/H) and this general motion is expected to continue through tonight.

Maximum sustained winds are near 35 MPH (55 KM/H) with higher gusts. Gradual weakening is expected, and Post-Tropical Cyclone Dolly is expected to dissipate by Thursday morning.

The estimated minimum central pressure is 1007 millibars.

Post-Tropical Storm Dolly Forecast Cone as of 11:00 AM AST Wednesday 24th June 2020. Credit: National Hurricane Center
Post-Tropical Storm Dolly Forecast Cone as of 11:00 AM AST Wednesday 24th June 2020. Credit: National Hurricane Center

Watches & Warnings

Post-Tropical Storm Dolly Watches and Warnings as of 11:00 AM AST Wednesday 24th June 2020. Credit: National Hurricane Center
Post-Tropical Storm Dolly Watches and Warnings as of 11:00 AM AST Wednesday 24th June 2020. Credit: National Hurricane Center

There are no watches or warnings in effect, as this system moves into the North Atlantic Ocean, away from land masses.

Hazards Affecting Land

Tropical Storm Dolly as of 1:00 PM AST Tuesday 23rd June 2020. (Weathernerds)

There are no hazards affecting land at this time.

This system is of no threat to the Windward Islands, including Trinidad and Tobago.

Post-Tropical Storm Dolly Forecast Discussion

The center of Dolly has been exposed since last night, and any remaining convection has been displaced well to the system’s south. The circulation is now traversing over waters below 20 degrees C, and therefore is not anticipated that any deep convection will return to the post-tropical remnant low. The initial intensity of 30 kt is based on an overnight ASCAT overpass. The low is forecast to gradually spin down through tonight and will likely open to a surface trough sometime on Thursday as it continues to move northeastward at around 15 kt. This is the last NHC advisory on this system.

Forecast Discussion by Forecaster Latto from the NHC.

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