U.S. Virgin Islands, 2021

Tropical Storm in U.S. Virgin Islands, August 15, 2021

August 15, 2021 · NWS SJU · 2 events in 2 counties and zones

Tropical Storm Grace affected the area on August 15th. The system brought with it bands of moderate to locally heavy rainfall activity as well as some gusty winds, with some areas reporting tropical storm force gusts.

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
2

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS SJU wrote it up.

Tropical Storm Grace affected the area on August 15th. The system brought with it bands of moderate to locally heavy rainfall activity as well as some gusty winds, with some areas reporting tropical storm force gusts.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS San Juan, PR wrote its last area forecast discussion before the first event at Aug 14, 9:07 PM AST, 7 hours 33 minutes earlier.

Area forecast discussion, Aug 14, 9:07 PM AST, 7 hours 33 minutes before
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Hazardous weather outlook, Aug 14, 6:51 AM AST, 21 hours 49 minutes before
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Event by event

2 tropical storm. Local standard time, as filed.

Tropical Storm, St. Croix

When
August 15, 4:40 AM AST to 5:00 PM AST
Where
St. Croix forecast zone
Reported by
Unknown

A wind gust of 43 mph was reported in Two Brothers, St. Croix.

Tropical Storm, St. Thomas / St. John and Adjacent Islands

When
August 15, 1:35 PM AST to 5:00 PM AST
Where
St. Thomas / St. John and Adjacent Islands forecast zone
Reported by
Unknown

A wind gust of 43 mph was reported in Buck Island, St. Thomas.

What these are

Tropical Storm
A tropical cyclone with sustained winds of 34 to 63 knots (39 to 73 mph).

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in U.S. Virgin Islands in 2021Every state in 2021This day in weather historyWarnings in U.S. Virgin Islands, August 2021The 2021 hurricane season

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-30. Each event’s entry at NCEI: 975975, 975976.