Overall Green alert Tropical Cyclone for MARCO-20
in United States, Mexico, Cuba, Honduras, Nicaragua

Impact

Tropical Cyclone MARCO-20 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source GDACS
Exposed countries United States, Mexico, Cuba, Honduras, Nicaragua
Exposed population No people in Category 1 or higher
Maximum wind speed 120 km/h
Maximum storm surge 1 m (24 Aug 21:00 UTC)
Vulnerability Medium (Mexico)
Landfall between
24 Aug 2020 18:00 - 25 Aug 2020 06:00

in United States

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 120 km/h 1.0 m n.a. 0.5
Overall 120 km/h 1.0 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

120 km/h Current Max.

Up to 250000 people in Category 1 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 20 Aug 2020 15:00 111 2.3 million No people Honduras, Mexico
Green 2 20 Aug 2020 21:00 102 2.6 million No people Nicaragua, Honduras, Mexico
Orange 3 21 Aug 2020 03:00 120 8.3 million 180 thousand Mexico
Green 4 21 Aug 2020 09:00 120 4.2 million No people Honduras, Mexico, United States
Green 5 21 Aug 2020 15:00 120 9.1 million No people Mexico, United States
Green 6 21 Aug 2020 21:00 120 5.6 million No people Mexico, United States
Green 7 22 Aug 2020 03:00 111 8.6 million No people Mexico, United States
Green 8 22 Aug 2020 09:00 111 7.5 million No people Mexico, United States
Green 9 22 Aug 2020 15:00 139 7.2 million No people United States
Green 10 22 Aug 2020 21:00 139 4.9 million 1.3 million United States
Green 11 23 Aug 2020 03:00 130 4 million 50 thousand United States
Green 12 23 Aug 2020 09:00 120 3.5 million 250 thousand United States

Bulletin Timeline

Alert Date (UTC) Category
(SSHS)
Max winds
(km/h)
Population in
Cat.1 or higher
Population in
Tropical Storm
or higher
Location (lat, lon) Countries
GREEN
1 20 Aug 2020 15:00 Tropical depression 56 no people no people 15.1, -79.7
GREEN
2 20 Aug 2020 21:00 Tropical depression 56 no people 28000 people 14.3, -81
GREEN
3 21 Aug 2020 03:00 Tropical depression 56 no people 110000 people 14.9, -82.2
GREEN
4 21 Aug 2020 09:00 Tropical depression 56 no people 25000 people 15.4, -83.1
GREEN
5 21 Aug 2020 15:00 Tropical depression 56 no people no people 16.6, -84.1
GREEN
6 21 Aug 2020 21:00 Tropical depression 56 no people no people 17.7, -84.3
GREEN
7 22 Aug 2020 03:00 Tropical storm 65 no people no people 18.7, -84.9
GREEN
8 22 Aug 2020 09:00 Tropical storm 74 no people 1 million people 19.6, -85.4
GREEN
9 22 Aug 2020 15:00 Tropical storm 102 no people no people 20.9, -85.3
GREEN
10 22 Aug 2020 21:00 Tropical storm 102 no people 700000 people 21.9, -85.7
GREEN
11 23 Aug 2020 03:00 Tropical storm 102 no people no people 22.8, -86.3
GREEN
12 23 Aug 2020 09:00 Tropical storm 111 no people no people 23.7, -87
GREEN
12 23 Aug 2020 18:00 Category 1 120 no people no people 25.3, -87.6
GREEN
12 24 Aug 2020 06:00 Category 1 120 no people 1.1 million people 27.3, -88.6
GREEN
12 24 Aug 2020 18:00 Category 1 120 250000 people 2.4 million people 29, -89.7
GREEN
12 25 Aug 2020 06:00 Tropical storm 83 no people 1.5 million people 29.9, -91.5 United States
GREEN
12 25 Aug 2020 18:00 Tropical depression 56 no people no people 30.5, -93.1 United States
GREEN
12 26 Aug 2020 06:00 Tropical depression 46 no people no people 31, -95 United States
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
United States

Provinces

Region Province Country
Louisiana United States

Populated places

Name Region Province Country City class Population
Houma Louisiana United States City 32000 people
Thibodaux Louisiana United States City 14000 people
Morgan City Louisiana United States City 13000 people
Jeanerette Louisiana United States City 6000 people

Critical infrastructure

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

Airports

Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft)
E-8 Tank Battery unknown 0
Nl Baroid 3 0
Timbalier Bay Camp unknown 0
Chevron Usa Inc unknown 0
Medicant Island 5 0
South Lafourche 0 0
Odeco Cocodrie 1 0
Lady of The Sea Hospital 1 0
Ledet Airfield unknown 0
Hunter Air Service 1 0
Union Dulac unknown 0
Houma Terrebonne HUM 3 Civ. Paved Yes 6500
Terrebonne General Medical Center 4 0
Huffaker Field 2 0
Troop C 3 0
Shell Pipe Line Gibson 2 0
Transco Schriever 2 0
District 8 Emergency unknown 0
Era - Morgan City 2 0
Bayou Boeuf 1 0
Kerr Mc Gee 2 0
Berwick Shore Base 3 0
Elfert 4 0
Cagc Berwick 4 0
Harry P Williams Memorial PTN 3 Civ. Paved Yes 5400
Le Maire Memorial 4 0

Ports

Name LOCODE Country
Shawano USSWS Wake Island
Grand Isle USGIJ Wake Island
Houma Wake Island
Morgan City USMGN Wake Island

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

1 m

The maximum Storm surge height is  1.0m in Cheniere Caminada, United States. This height is estimated for 24 Aug 2020 21:00 UTC .

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 (258 locations). Calculation based on advisory number 12 of 23 Aug 2020 09:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert Date (UTC) Name Country Storm surge height (m)
24 Aug 2020 21:00 Cheniere Caminada United States  1.0
24 Aug 2020 21:00 Happy Jack United States  1.0
24 Aug 2020 21:00 Potash United States  0.9
24 Aug 2020 21:00 Grand Isle United States  0.8
24 Aug 2020 20:00 Hesperides United States  0.8
24 Aug 2020 22:00 West Pointe A la Hache United States  0.8
24 Aug 2020 21:00 Bassa Bassa United States  0.8
24 Aug 2020 21:00 Grand Ecaille United States  0.8
24 Aug 2020 23:00 Leeville United States  0.7
24 Aug 2020 19:00 Nairn United States  0.7
24 Aug 2020 23:00 West Point United States  0.7
24 Aug 2020 21:00 Empire United States  0.7
24 Aug 2020 21:00 Buras United States  0.6
24 Aug 2020 22:00 Ostrica United States  0.6
24 Aug 2020 23:00 Breton United States  0.6
24 Aug 2020 22:00 Sunrise United States  0.6
24 Aug 2020 22:00 Neptune United States  0.6
24 Aug 2020 22:00 Gulf Park Estates United States  0.5
24 Aug 2020 22:00 Fort Jackson United States  0.5
24 Aug 2020 22:00 Boothville United States  0.4
24 Aug 2020 22:00 Port Fourchon United States  0.4
24 Aug 2020 21:00 Hilda United States  0.4
24 Aug 2020 21:00 Gautier United States  0.4
24 Aug 2020 21:00 Pascagoula United States  0.4
24 Aug 2020 22:00 Duvic United States  0.4
24 Aug 2020 17:00 Burrwood United States  0.4
25 Aug 2020 12:00 Ellerstie United States  0.4
25 Aug 2020 12:00 South Bend United States  0.3
25 Aug 2020 12:00 Gordy United States  0.3
24 Aug 2020 17:00 Port Eads United States  0.3
24 Aug 2020 17:00 South Pass United States  0.3
23 Aug 2020 00:00 Majana Cuba  0.3
23 Aug 2020 00:00 Guanimar Cuba  0.3
22 Aug 2020 22:00 Guasimal Cuba  0.3
24 Aug 2020 20:00 Bayou La Batre United States  0.2
24 Aug 2020 20:00 Coden United States  0.2
24 Aug 2020 20:00 Nelson United States  0.2
25 Aug 2020 21:00 Eden Isle United States  0.2
25 Aug 2020 21:00 Howze Beach United States  0.2
23 Aug 2020 04:00 Surgidero de Batabano Cuba  0.2
23 Aug 2020 01:00 Batabano Cuba  0.2
23 Aug 2020 03:00 Playa de Tasajera Cuba  0.2
24 Aug 2020 20:00 Heron Bay United States  0.2
24 Aug 2020 20:00 Alabama Port United States  0.2
24 Aug 2020 22:00 Fort Gaines United States  0.2
22 Aug 2020 23:00 El Cuyo Mexico  0.2
23 Aug 2020 03:00 Playa Caimito Cuba  0.2
24 Aug 2020 20:00 Dauphin Island United States  0.2
24 Aug 2020 22:00 Fort Morgan United States  0.2
24 Aug 2020 22:00 Magnolia Springs United States  0.2
24 Aug 2020 22:00 Oyster Bay United States  0.2
24 Aug 2020 22:00 Bon Secaur United States  0.2
24 Aug 2020 22:00 Oak United States  0.2
24 Aug 2020 22:00 Gulf Shores United States  0.2
24 Aug 2020 22:00 Swift United States  0.2
24 Aug 2020 22:00 Miffin United States  0.2
23 Aug 2020 05:00 El Cajio Cuba  0.2
25 Aug 2020 05:00 Lynn Haven United States  0.2
25 Aug 2020 05:00 Southport United States  0.2
25 Aug 2020 05:00 Hiland Park United States  0.2
25 Aug 2020 05:00 Cedar Grove United States  0.2
25 Aug 2020 05:00 Resota Beach United States  0.2
25 Aug 2020 05:00 College Station United States  0.2
25 Aug 2020 05:00 Old Callaway United States  0.2
25 Aug 2020 05:00 Callaway United States  0.2
25 Aug 2020 05:00 Bayou George United States  0.2
25 Aug 2020 05:00 Camp Flowers United States  0.2
25 Aug 2020 05:00 Cook United States  0.2
22 Aug 2020 21:00 Punta de Fisga Cuba  0.2
23 Aug 2020 04:00 Chacmuchuch Mexico  0.2
23 Aug 2020 00:00 Chipepte Mexico  0.2
23 Aug 2020 03:00 Caserio Pescadores Cuba  0.2
25 Aug 2020 07:00 Dekle Beach United States  0.2
24 Aug 2020 10:00 Surf United States  0.2
24 Aug 2020 10:00 Sun N Sand Beaches United States  0.2
25 Aug 2020 06:00 Destin United States  0.2
24 Aug 2020 20:00 Gulf Highlands United States  0.2
23 Aug 2020 00:00 Santo Domingo Mexico  0.2
22 Aug 2020 23:00 Chabihau Mexico  0.2
23 Aug 2020 00:00 Santa Cruz Mexico  0.2
23 Aug 2020 00:00 Sabancuy Mexico  0.2
25 Aug 2020 07:00 Keaton Beach United States  0.2
25 Aug 2020 07:00 Fish Creek United States  0.2
25 Aug 2020 07:00 Dallus Creek Landing United States  0.2
24 Aug 2020 20:00 Cedar Grove United States  0.2
24 Aug 2020 20:00 Gasque United States  0.2
25 Aug 2020 06:00 Gulf Resort Beach United States  0.2
25 Aug 2020 06:00 Lullwater Beach United States  0.2
25 Aug 2020 06:00 West Bay United States  0.2
25 Aug 2020 06:00 Bahama Beach United States  0.2
25 Aug 2020 06:00 Gulf Beach United States  0.2
25 Aug 2020 06:00 Panama City Beach United States  0.2
25 Aug 2020 06:00 Edgewater Gulf Beach United States  0.2
25 Aug 2020 06:00 Long Beach Resort United States  0.2
25 Aug 2020 06:00 Gulf Lagoon Beach United States  0.2
25 Aug 2020 06:00 Biltmore Beach United States  0.2
25 Aug 2020 06:00 Lower Grand Lagoon United States  0.2
25 Aug 2020 06:00 Upper Grand Lagoon United States  0.2
25 Aug 2020 05:00 San Blas United States  0.2
25 Aug 2020 05:00 Parker United States  0.2
25 Aug 2020 05:00 Tyndall AFB United States  0.2
22 Aug 2020 22:00 Aguas Claras Cuba  0.2
22 Aug 2020 23:00 Cerrito Mexico  0.2
22 Aug 2020 23:00 Chisahcab Mexico  0.2
22 Aug 2020 22:00 Telchac Puerto Mexico  0.2
23 Aug 2020 01:00 Noham Mexico  0.2
24 Aug 2020 10:00 Lanark Village United States  0.2
24 Aug 2020 10:00 Big Blackjack Landing United States  0.2
24 Aug 2020 08:00 Cedar Key United States  0.2
24 Aug 2020 11:00 Apalachicola United States  0.2
24 Aug 2020 11:00 Eastpoint United States  0.2
24 Aug 2020 11:00 Yent Place United States  0.2
24 Aug 2020 11:00 Carrabelle United States  0.2
24 Aug 2020 23:00 McNeils United States  0.2
24 Aug 2020 23:00 Indian Pass United States  0.2
24 Aug 2020 12:00 Thirteen Mile United States  0.2
24 Aug 2020 12:00 Odena United States  0.2
24 Aug 2020 12:00 Eleven Mile United States  0.2
24 Aug 2020 12:00 Nine Mile United States  0.2
24 Aug 2020 11:00 Tilton United States  0.2
24 Aug 2020 11:00 Franklin United States  0.2
25 Aug 2020 06:00 Quinavista United States  0.2
25 Aug 2020 06:00 Fort McRee United States  0.2
25 Aug 2020 06:00 Fort Barrancas United States  0.2
25 Aug 2020 06:00 Gulf Beach United States  0.2
25 Aug 2020 06:00 Villa Sabine United States  0.2
25 Aug 2020 06:00 Oriole Beach United States  0.2
25 Aug 2020 06:00 Tiger Point United States  0.2
25 Aug 2020 06:00 Fort Walton Beach United States  0.2
25 Aug 2020 05:00 Magnolia Beach United States  0.2
25 Aug 2020 05:00 Pretty Bayou United States  0.2
25 Aug 2020 05:00 Baker United States  0.2
25 Aug 2020 05:00 Beacon Beach United States  0.2
25 Aug 2020 05:00 Cove United States  0.2
25 Aug 2020 05:00 Cromanton United States  0.2
25 Aug 2020 05:00 Springfield United States  0.2
25 Aug 2020 05:00 Panama City United States  0.2
25 Aug 2020 05:00 Davis Beach United States  0.2
25 Aug 2020 05:00 Allanton United States  0.2
25 Aug 2020 05:00 Mexico Beach United States  0.2
25 Aug 2020 05:00 Beacon Hill United States  0.2
25 Aug 2020 14:00 Cheniere Au Tigre United States  0.2
23 Aug 2020 00:00 Balantanche Mexico  0.2
23 Aug 2020 04:00 Almacen Cuba  0.2
22 Aug 2020 22:00 Cancun Mexico  0.1
22 Aug 2020 22:00 Puerto Juarez Mexico  0.1
22 Aug 2020 22:00 Mina de Oro Mexico  0.1
23 Aug 2020 01:00 Paso Real Mexico  0.1
24 Aug 2020 23:00 Oak Grove United States  0.1
24 Aug 2020 23:00 Ward Ridge United States  0.1
25 Aug 2020 06:00 Gulf Beach Heights United States  0.1
25 Aug 2020 06:00 Gulf Beach United States  0.1
25 Aug 2020 06:00 Perdido Bay United States  0.1
25 Aug 2020 06:00 Chanticleer United States  0.1
25 Aug 2020 06:00 Gulf Breeze United States  0.1
25 Aug 2020 06:00 Miramar Beach United States  0.1
25 Aug 2020 06:00 Four Mile Village United States  0.1
25 Aug 2020 06:00 Turquoise Beach United States  0.1
25 Aug 2020 06:00 Romar Beach United States  0.1
25 Aug 2020 06:00 Orange Beach United States  0.1
25 Aug 2020 06:00 Caswell United States  0.1
25 Aug 2020 06:00 Grosh United States  0.1
24 Aug 2020 23:00 Highland View United States  0.1
24 Aug 2020 23:00 Port Saint Joe United States  0.1
24 Aug 2020 23:00 Milltown United States  0.1
23 Aug 2020 00:00 Rio Lagartos Mexico  0.1
22 Aug 2020 23:00 Progreso Mexico  0.1
22 Aug 2020 23:00 Pixoy Mexico  0.1
22 Aug 2020 23:00 Porfirio Diaz Mexico  0.1
22 Aug 2020 23:00 Chenkan Mexico  0.1
22 Aug 2020 23:00 Hoquel Mexico  0.1
22 Aug 2020 23:00 Champoton Mexico  0.1
22 Aug 2020 23:00 Haltunchen Mexico  0.1
23 Aug 2020 03:00 Ciudad del Carmen Mexico  0.1
24 Aug 2020 08:00 Steinhatchee United States  0.1
24 Aug 2020 08:00 Jena United States  0.1
24 Aug 2020 08:00 Horseshoe Beach United States  0.1
24 Aug 2020 08:00 Shired Island United States  0.1
24 Aug 2020 08:00 Suwannee United States  0.1
25 Aug 2020 06:00 Woodlawn Beach United States  0.1
25 Aug 2020 06:00 Wynnehaven Beach United States  0.1
25 Aug 2020 06:00 Harris United States  0.1
25 Aug 2020 06:00 Elorosa United States  0.1
25 Aug 2020 06:00 Mary Esther United States  0.1
25 Aug 2020 06:00 Wright United States  0.1
25 Aug 2020 06:00 Ocean City United States  0.1
25 Aug 2020 06:00 Garnier United States  0.1
25 Aug 2020 06:00 Shalimar United States  0.1
25 Aug 2020 06:00 Lake Lorraine United States  0.1
25 Aug 2020 06:00 Eglin AFB United States  0.1
25 Aug 2020 06:00 Valparaiso United States  0.1
25 Aug 2020 06:00 Niceville United States  0.1
25 Aug 2020 06:00 Seminole United States  0.1
25 Aug 2020 06:00 Villa Tasso United States  0.1
25 Aug 2020 06:00 Big Hammock United States  0.1
25 Aug 2020 06:00 Mullet Creek United States  0.1
24 Aug 2020 20:00 Joesphine United States  0.1
24 Aug 2020 20:00 Perdido Beach United States  0.1
25 Aug 2020 06:00 Navarre United States  0.1
25 Aug 2020 06:00 Dune Allen Beach United States  0.1
25 Aug 2020 06:00 Santa Rosa Beach United States  0.1
25 Aug 2020 06:00 Santa Rosa United States  0.1
25 Aug 2020 06:00 Portland United States  0.1
25 Aug 2020 06:00 Bay View United States  0.1
25 Aug 2020 06:00 Fluffy Landing United States  0.1
25 Aug 2020 06:00 Freeport United States  0.1
25 Aug 2020 06:00 Bunker United States  0.1
25 Aug 2020 05:00 Wetappo United States  0.1
25 Aug 2020 05:00 Overstreet United States  0.1
22 Aug 2020 23:00 Chelem Mexico  0.1
22 Aug 2020 23:00 Sisal Mexico  0.1
22 Aug 2020 22:00 Seybaplaya Mexico  0.1
23 Aug 2020 02:00 Boca Nueva Mexico  0.1
25 Aug 2020 06:00 Killian United States  0.1
25 Aug 2020 06:00 Lillian United States  0.1
24 Aug 2020 20:00 Paradise Beach United States  0.1
25 Aug 2020 06:00 Haven Park United States  0.1
25 Aug 2020 06:00 Sherman Grove United States  0.1
25 Aug 2020 06:00 Ramsey Beach United States  0.1
25 Aug 2020 06:00 Pleasant Grove United States  0.1
25 Aug 2020 06:00 Sand Cut United States  0.1
25 Aug 2020 06:00 Cerny Heights United States  0.1
25 Aug 2020 06:00 Bellview United States  0.1
25 Aug 2020 06:00 Myrtle Grove United States  0.1
25 Aug 2020 06:00 Warrington United States  0.1
25 Aug 2020 06:00 West Pensacola United States  0.1
25 Aug 2020 06:00 Sanders Beach United States  0.1
25 Aug 2020 06:00 Pensacola United States  0.1
25 Aug 2020 06:00 Goulding United States  0.1
25 Aug 2020 06:00 Gaberonne United States  0.1
25 Aug 2020 06:00 Holley United States  0.1
25 Aug 2020 06:00 East Bay United States  0.1
25 Aug 2020 05:00 Blue Mountain Beach United States  0.1
25 Aug 2020 05:00 Grayton Beach United States  0.1
25 Aug 2020 05:00 Seagrove Beach United States  0.1
25 Aug 2020 05:00 Alys Beach United States  0.1
25 Aug 2020 05:00 Inlet Beach United States  0.1
25 Aug 2020 05:00 Hollywood Beach United States  0.1
25 Aug 2020 05:00 Sunnyside United States  0.1
25 Aug 2020 05:00 Laguna Beach United States  0.1
25 Aug 2020 05:00 Santa Monica United States  0.1
21 Aug 2020 11:00 Dapat Honduras  0.1
21 Aug 2020 11:00 Cauauira Honduras  0.1
21 Aug 2020 11:00 Kaski Honduras  0.1
22 Aug 2020 23:00 Celestum Mexico  0.1
25 Aug 2020 06:00 Choctaw United States  0.1
21 Aug 2020 11:00 Barra de Caratasca Honduras  0.1
21 Aug 2020 09:00 Kanko Honduras  0.1
21 Aug 2020 08:00 Cabo Gracias a Dios Honduras  0.1
23 Aug 2020 08:00 Dismal Key United States  0.1
23 Aug 2020 08:00 Caxambas United States  0.1
23 Aug 2020 08:00 Goodland United States  0.1
23 Aug 2020 08:00 Grocery Place United States  0.1
23 Aug 2020 08:00 Belle Meade United States  0.1
24 Aug 2020 07:00 Beacon Square United States  0.1
24 Aug 2020 07:00 Gulf Harbors United States  0.1
24 Aug 2020 07:00 New Port Richey United States  0.1
24 Aug 2020 07:00 Elfers United States  0.1