Overall Green alert Tropical Cyclone for PETER-21
in Puerto Rico, Virgin Islands U.S., Virgin Islands British, Anguilla, Saint Kitts and Nevis, Antigua and Barbuda

Impact

Tropical Cyclone PETER-21 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source GDACS
Exposed countries Puerto Rico, Virgin Islands U.S., Virgin Islands British, Anguilla, Saint Kitts and Nevis, Antigua and Barbuda
Exposed population No people in Category 1 or higher
Maximum wind speed 83 km/h
Maximum storm surge
Vulnerability Medium (Anguilla)

GDACS Score

GDACS alert score for Tropical Cyclones is 0.5 (GREEN Alert), 1.5 (ORANGE Alert), 2.5 (RED Alert)
For more info on GDACS alert score click here.
  Wind Storm surge Rainfall GDACS score
Current 83 km/h 0.0 m n.a. 0.5
Overall 83 km/h 0.0 m n.a. 0.5

Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track) based on GDACS impact

Wind

83 km/h Current Max.

Up to <1000 people in Tropical Storm strength or higher (see SSHS)

Impact Timeline

Alert Date (UTC) Max Winds (km/h) Population in
Tropical Storm or higher
Population in
Cat 1. or higher
Countries
Green 1 19 Sep 2021 03:00 74 No people No people
Green 2 19 Sep 2021 09:00 74 No people No people
Green 3 19 Sep 2021 13:00 74 No people No people
Green 4 19 Sep 2021 15:00 74 30 thousand No people Antigua and Barbuda, Anguilla
Green 5 19 Sep 2021 21:00 74 No people No people
Green 6 20 Sep 2021 03:00 83 20 thousand No people Antigua and Barbuda, Anguilla
Green 7 20 Sep 2021 09:00 83 Few people No people Anguilla
Green 8 20 Sep 2021 15:00 83 Few people No people Anguilla

Bulletin Timeline

Alert Date (UTC) Category
(SSHS)
Max winds
(km/h)
Population in
Tropical Storm
or higher
Population in
Cat.1 or higher
Location (lat, lon) Countries
GREEN
1 19 Sep 2021 03:00 Tropical depression 56 no people no people 16.4, -53.1
GREEN
2 19 Sep 2021 09:00 Tropical storm 65 no people no people 18, -53.5
GREEN
3 19 Sep 2021 13:00 Tropical storm 74 no people no people 17.6, -56
GREEN
4 19 Sep 2021 15:00 Tropical storm 74 no people no people 17.6, -56.5
GREEN
5 19 Sep 2021 21:00 Tropical storm 74 no people no people 18.4, -57.8
GREEN
6 20 Sep 2021 03:00 Tropical storm 83 no people no people 18.6, -58.5
GREEN
7 20 Sep 2021 09:00 Tropical storm 83 no people no people 19.1, -59.5
GREEN
8 20 Sep 2021 15:00 Tropical storm 83 <1000 people no people 19.5, -60.9
GREEN
8 21 Sep 2021 00:00 Tropical storm 74 no people no people 20.1, -62.7
GREEN
8 21 Sep 2021 12:00 Tropical storm 74 no people no people 20.8, -64.8
GREEN
8 22 Sep 2021 00:00 Tropical storm 65 no people no people 21.8, -66.6
GREEN
8 22 Sep 2021 12:00 Tropical storm 65 no people no people 22.7, -67.9
GREEN
8 23 Sep 2021 00:00 Tropical depression 56 no people no people 23.5, -68.6
GREEN
8 23 Sep 2021 12:00 Tropical depression 56 no people no people 24.5, -68.7
GREEN
8 24 Sep 2021 12:00 Tropical depression 56 no people no people 26.5, -67.6
GREEN
8 25 Sep 2021 12:00 Tropical storm 65 no people no people 28.6, -66.4
Actual track of the current bulletin
The alert for forecast greater than 3 days is limited to Orange level.
Download:



Exposed population - AoIs

Exposed population in the potential affected countries, provinces and populated places

Countries

Country
Anguilla

Provinces

Region Province Country Population
Anguilla Anguilla 9200 people

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Rainfall

Rainfall accumulation of the past 24h, as detected by the Global Precipitation Measurement mission of NASA. For more information, see https://www.nasa.gov/mission_pages/GPM/main/index.html.

...

StormSurge

0 m

The JRC has developed an experimental global storm surge model. The calculations are published about 20 minutes after a new advisory is detected by GDACS. The calculations identify the populated places affected by storm surge up to three days in advance, using the forecasted track. When forecasts change, the associated storm surge changes too and alert levels may go up or down. All links, data, statistics and maps refer to the latest available calculation. If the calculation for the last advisory is not completed, the latest available calculation is shown.

Locations affected by Storm surge (0 locations). Calculation based on advisory number 8 of 20 Sep 2021 15:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert Date (UTC) Name Country Storm surge height (m)