Overall Green alert Tropical Cyclone for NICHOLAS-21
in United States

Impact

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

Meteorological source ECMWF
Exposed countries United States
Exposed population No people in Category 1 or higher
Maximum wind speed 83 km/h
Maximum storm surge 1.3 m (14 Sep 00:30 UTC)
Vulnerability Low (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
ECMWF Current 83 km/h 1.3 m 227 mm 0.5
ECMWF Overall 76 km/h 1.3 m 349 mm 0.5

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

Wind

76 km/h

Up to 60 thousand can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 14 Sep 2021 00:00 UTC
CategoryCountryPopulation 
Tropical StormUnited States57,506 

See TC classification SSHS


Wind Impact Timeline

people affected <=10000
10000< people affected <=100000
people affected >100000


Alert Date (UTC) Max Winds (km/h) Pop in Cat. 1 or higher TS Cat. 1 Cat. 2 Cat. 3 Cat. 4 Cat. 5 Countries
GREEN 1 12 Sep 2021 00:00 50 - - - - - - -
GREEN 2 12 Sep 2021 12:00 83 - - - - - - -
GREEN 3 13 Sep 2021 00:00 90 - - - - - - -
GREEN 4 13 Sep 2021 12:00 94 -
- - - - - United States
GREEN 5 14 Sep 2021 00:00 83 -
- - - - - United States




Impact estimation for the next 72h
Download:





Rain exposed population - AoIs

Estimations based on the bulletin of 14 Sep 2021 00:00 UTC
LevelCountryPopulation 
250-500 mmUnited States, Mexico640,903
+
United States215,830 
Mexico425,073 
100-250 mmUnited States, Mexico3,641,032
+
United States3,383,987 
Mexico257,044 
50-100 mmUnited States, Mexico, Cuba, Guatemala, Honduras, El Salvador, Nicaragua13,731,472
+
United States9,941,421 
Mexico2,972,891 
Cuba37,911 
Guatemala344,053 
Honduras194,315 
El Salvador29,686 
Nicaragua211,192 

Rain Impact Timeline

people affected <=10000
10000< people affected <=100000
people affected >100000


Alert Date (UTC) Max Rainfall (mm) Pop >100mm or higher 50-100 100-250 250-500 500-750 750-1000 >1000 Countries
Blue 1 12 Sep 2021 00:00 177 140 thousand
- - - - Mexico, El Salvador
Blue 2 12 Sep 2021 12:00 248 10 thousand
- - - - Mexico
Blue 3 13 Sep 2021 00:00 199 40 thousand
- - - - Mexico, Guatemala
Blue 4 13 Sep 2021 12:00 154 250 thousand
- - - - United States, Mexico
Blue 5 14 Sep 2021 00:00 478 4.3 million
- - - United States, Mexico, Cuba, Guatemala, Honduras, El Salvador, Nicaragua




Impact estimation for the next 72h

StormSurge

1.3 m

The maximum Storm surge height is  1.3m in Alamo Beach, United States. This height is estimated for 14 Sep 2021 00:30 UTC .

The JRC has developed an experimental global storm surge model, which is run after each advisory issued by the regional tropical cyclone centres. 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.

Storm Surge Exposed locations

Calculation based on the bulletin of 14 Sep 2021 00:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
14 Sep 2021 00:30 Alamo Beach United States  1.3
14 Sep 2021 00:30 Point Comfort United States  1.3
14 Sep 2021 00:30 Magnolia Beach United States  1.3
14 Sep 2021 00:30 Indianola United States  1.3
14 Sep 2021 00:30 Olivia United States  1.3
14 Sep 2021 00:30 Port Alto United States  1.3
14 Sep 2021 00:30 Port O'Connor United States  1.3
14 Sep 2021 00:30 Carancahua United States  1.3
14 Sep 2021 00:30 El Campo Club Community United States  1.3
14 Sep 2021 05:15 Bacliff United States  1.2
14 Sep 2021 05:15 Nadeau United States  1.2
14 Sep 2021 05:15 Texas City Junction United States  1.2
14 Sep 2021 05:15 Bayou Vista United States  1.2
14 Sep 2021 05:15 San Leon United States  1.2
14 Sep 2021 05:15 Texas City United States  1.2
14 Sep 2021 05:15 Anderson Ways United States  1.2
14 Sep 2021 05:15 Virginia Point United States  1.2
14 Sep 2021 05:15 Galveston United States  1.2
14 Sep 2021 05:15 Port Bolivar United States  1.2
14 Sep 2021 05:15 Smith Point United States  1.2
14 Sep 2021 05:15 Fort Travis United States  1.2
14 Sep 2021 05:15 Flake United States  1.2
14 Sep 2021 05:15 Elmgrove United States  1.2
14 Sep 2021 13:30 Cedar Point United States  1.2
14 Sep 2021 13:30 Beach City United States  1.2
14 Sep 2021 13:30 Oak Island United States  1.2
14 Sep 2021 13:30 Anahuac United States  1.2
14 Sep 2021 00:00 Weedhaven United States  1.1
14 Sep 2021 00:00 Camp Hulen United States  1.1
14 Sep 2021 00:00 Palacios United States  1.1
14 Sep 2021 08:30 Webster United States  1.0
14 Sep 2021 08:30 Clear Lake City United States  1.0
14 Sep 2021 08:30 Nassau Bay United States  1.0
14 Sep 2021 08:30 Kilkare United States  1.0
14 Sep 2021 08:30 Lakeside United States  1.0
14 Sep 2021 08:30 Taylor Lake United States  1.0
14 Sep 2021 08:30 La Porte United States  1.0
14 Sep 2021 08:30 El Lago United States  1.0
14 Sep 2021 08:30 Clear Lake Shores United States  1.0
14 Sep 2021 08:30 Kemah United States  1.0
14 Sep 2021 08:30 Shoreacres United States  1.0
14 Sep 2021 08:30 Bayside Terrace United States  1.0
14 Sep 2021 08:30 Todville United States  1.0
14 Sep 2021 08:30 Morgan's Point United States  1.0
14 Sep 2021 08:30 Bayview United States  1.0
14 Sep 2021 08:30 Red Bluff United States  1.0
14 Sep 2021 08:30 Seabrook United States  1.0
14 Sep 2021 08:30 Morgan Point United States  1.0
14 Sep 2021 08:30 Baytown United States  1.0
14 Sep 2021 08:30 Pelly United States  1.0
14 Sep 2021 07:15 Bay Harbor United States  1.0
14 Sep 2021 07:15 Sea Isle United States  1.0
14 Sep 2021 07:15 Hitchcock United States  1.0
14 Sep 2021 07:15 Jamaica Beach United States  1.0
14 Sep 2021 00:00 Collegeport United States  1.0
14 Sep 2021 00:00 Simpsonville United States  1.0
14 Sep 2021 00:00 Citrus Grove United States  1.0
14 Sep 2021 07:45 Crystal Beach United States  1.0
14 Sep 2021 07:45 Patton United States  1.0
14 Sep 2021 07:45 Bolivar Peninsula United States  1.0
14 Sep 2021 07:45 Caplen United States  1.0
14 Sep 2021 07:45 Gilchrist United States  1.0
14 Sep 2021 06:15 Hoskins United States  1.0
14 Sep 2021 06:15 Peterson Landing United States  1.0
14 Sep 2021 06:15 Port Morris United States  1.0
14 Sep 2021 06:15 Red Fish Cove United States  1.0
14 Sep 2021 07:45 High Island United States  0.9
14 Sep 2021 00:00 Matagorda United States  0.8
14 Sep 2021 00:00 Chinquapin United States  0.8
14 Sep 2021 03:00 Quintana United States  0.8
14 Sep 2021 03:00 Surfside United States  0.8
14 Sep 2021 03:00 Mims United States  0.8
14 Sep 2021 03:00 Surfside Beach United States  0.8
14 Sep 2021 03:00 Hoskins United States  0.8
14 Sep 2021 03:00 Bryan Beach United States  0.8
14 Sep 2021 03:00 Valasco Heights United States  0.8
14 Sep 2021 03:00 Freeport United States  0.8
14 Sep 2021 08:30 Sabine United States  0.7
14 Sep 2021 08:30 Sabine Pass United States  0.7
14 Sep 2021 02:15 Gulf Park United States  0.7
15 Sep 2021 13:30 Cypremort Point United States  0.7
15 Sep 2021 13:30 Weeks United States  0.7
15 Sep 2021 15:45 Louisa United States  0.7
15 Sep 2021 15:45 Ivanhoe United States  0.7
15 Sep 2021 15:45 Florence United States  0.7
15 Sep 2021 15:45 Cote Blanche Landing United States  0.7
15 Sep 2021 15:45 Freetown United States  0.7
15 Sep 2021 15:45 Gordy United States  0.7
15 Sep 2021 15:45 South Bend United States  0.7
15 Sep 2021 15:45 Burns United States  0.7
14 Sep 2021 07:45 Johnson's Bayou United States  0.7
14 Sep 2021 00:00 Seadrift United States  0.7
15 Sep 2021 15:15 Ellerstie United States  0.7
14 Sep 2021 07:30 Constance Beach United States  0.7
14 Sep 2021 07:30 Peveto Beach United States  0.7
15 Sep 2021 16:15 Intracoastal City United States  0.6
14 Sep 2021 08:00 Holly Beach United States  0.6
14 Sep 2021 08:15 Cameron United States  0.6
15 Sep 2021 17:45 Fivemile Oaks United States  0.6
14 Sep 2021 00:00 Maudlowe United States  0.5
14 Sep 2021 00:00 Tivoli United States  0.5
14 Sep 2021 00:00 Spanish Village United States  0.5
14 Sep 2021 00:00 Austwell United States  0.5
14 Sep 2021 08:30 Oak Grove United States  0.5
14 Sep 2021 09:00 Grand Chenier United States  0.4
15 Sep 2021 06:30 Cheniere Au Tigre United States  0.3
15 Sep 2021 10:30 Ansley United States  0.3
15 Sep 2021 10:30 Bayside Park United States  0.3
15 Sep 2021 10:30 Lakeshore United States  0.3
15 Sep 2021 10:30 Klin United States  0.3
15 Sep 2021 10:30 Kiln United States  0.3
15 Sep 2021 10:30 Shoreline Park United States  0.3
15 Sep 2021 10:30 Silver Creek Acres United States  0.3
15 Sep 2021 10:30 Waveland United States  0.3
15 Sep 2021 10:30 Fenton United States  0.3
15 Sep 2021 10:30 Diamondhead United States  0.3
15 Sep 2021 10:30 Bay St Louis United States  0.3
15 Sep 2021 10:30 Henderson Point United States  0.3
15 Sep 2021 10:30 De Lisle United States  0.3
15 Sep 2021 10:30 Pass Christian United States  0.3
15 Sep 2021 10:30 Cuevas United States  0.3
15 Sep 2021 10:30 White Harbor United States  0.3
14 Sep 2021 13:00 Happy Jack United States  0.3
14 Sep 2021 13:00 Potash United States  0.3
15 Sep 2021 11:00 Howze Beach United States  0.3
15 Sep 2021 11:00 Greens Ditch United States  0.3
15 Sep 2021 11:00 Fort Pike United States  0.3
15 Sep 2021 11:00 Lake Catherine United States  0.3
15 Sep 2021 11:00 White Kitchen United States  0.3
15 Sep 2021 11:00 Riolets United States  0.3
15 Sep 2021 11:00 Pearlington United States  0.3
15 Sep 2021 11:00 North Side United States  0.3
15 Sep 2021 11:00 Jackson Landing United States  0.3
15 Sep 2021 11:00 English Lookout United States  0.3
15 Sep 2021 16:30 Leeville United States  0.3
14 Sep 2021 00:00 Lamar United States  0.3
14 Sep 2021 00:00 Corpus Christi United States  0.3
14 Sep 2021 00:00 North Beach United States  0.3
14 Sep 2021 00:00 Gardendale United States  0.3
14 Sep 2021 00:00 Doyle United States  0.3
14 Sep 2021 00:00 Orange Grove United States  0.3
14 Sep 2021 00:00 Peary Place United States  0.3
14 Sep 2021 00:00 Portland United States  0.3
14 Sep 2021 00:00 Flour Bluff United States  0.3
14 Sep 2021 00:00 Caruthers Cove Colonia United States  0.3
14 Sep 2021 00:00 Ingleside United States  0.3
14 Sep 2021 00:00 Kenney Lane West Colonia United States  0.3
14 Sep 2021 00:00 Port Ingleside United States  0.3
14 Sep 2021 00:00 Indian Trails Lane Colonia United States  0.3
14 Sep 2021 00:00 Country Estates Colonia United States  0.3
14 Sep 2021 00:00 Aransas Pass United States  0.3
14 Sep 2021 00:00 Mustang Beach United States  0.3
14 Sep 2021 00:00 Port Aransas United States  0.3
14 Sep 2021 12:15 Hesperides United States  0.3
14 Sep 2021 12:15 Nairn United States  0.3
14 Sep 2021 12:15 Empire United States  0.3
14 Sep 2021 21:00 Cocodrie United States  0.3
14 Sep 2021 14:45 Martello Castle United States  0.3
14 Sep 2021 14:45 Chef Menteur United States  0.3
14 Sep 2021 14:45 Shell Beach United States  0.3
14 Sep 2021 14:45 Alluvial City United States  0.3
14 Sep 2021 14:45 Yscloskey United States  0.3
14 Sep 2021 14:45 Hopedale United States  0.3
14 Sep 2021 14:45 Saint Malo United States  0.3
15 Sep 2021 06:00 Bassa Bassa United States  0.3
15 Sep 2021 08:30 Long Beach United States  0.3
15 Sep 2021 08:30 Gulfport United States  0.3
14 Sep 2021 00:00 City Arroyo United States  0.3
14 Sep 2021 00:00 Port Mansfield United States  0.3
14 Sep 2021 00:00 Arroyo City Subdivision Colonia United States  0.3
16 Sep 2021 03:00 West Pointe A la Hache United States  0.3
16 Sep 2021 03:00 Grand Ecaille United States  0.3
14 Sep 2021 00:30 Rockport United States  0.2
14 Sep 2021 00:30 Shell Ridge United States  0.2
14 Sep 2021 00:30 Copano Village United States  0.2
14 Sep 2021 00:30 Fulton United States  0.2
15 Sep 2021 08:30 Mississippi City United States  0.2
15 Sep 2021 08:30 Handsboro United States  0.2
14 Sep 2021 12:30 Sunrise United States  0.2
14 Sep 2021 12:30 Buras United States  0.2
14 Sep 2021 12:30 Ostrica United States  0.2
14 Sep 2021 12:30 Neptune United States  0.2
14 Sep 2021 12:30 Fort Jackson United States  0.2
14 Sep 2021 12:30 Boothville United States  0.2
15 Sep 2021 08:30 Edgewater Park United States  0.2
15 Sep 2021 08:30 Beauvoir United States  0.2
14 Sep 2021 00:00 Gregory United States  0.2
14 Sep 2021 00:00 Country Acres Colonia United States  0.2
14 Sep 2021 00:00 Estes United States  0.2
15 Sep 2021 07:15 Loraine United States  0.2
15 Sep 2021 07:15 Wool Market United States  0.2
15 Sep 2021 07:15 Cedar Lake United States  0.2
15 Sep 2021 07:15 Biloxi United States  0.2
15 Sep 2021 07:15 D'Iberville United States  0.2
15 Sep 2021 07:15 Saint Martin United States  0.2
15 Sep 2021 15:00 Port Fourchon United States  0.2
15 Sep 2021 06:45 Ocean Springs United States  0.2
15 Sep 2021 06:45 Gulf Hills United States  0.2
14 Sep 2021 12:30 Duvic United States  0.2
14 Sep 2021 02:00 Holly Beach United States  0.2
14 Sep 2021 02:00 Laguna Vista United States  0.2
14 Sep 2021 02:00 Laguna Heights United States  0.2
14 Sep 2021 02:00 Port Isabel United States  0.2
14 Sep 2021 02:00 Kopernik Shores United States  0.2
14 Sep 2021 02:00 South Padre Island United States  0.2
14 Sep 2021 02:00 Boca Chica United States  0.2
14 Sep 2021 02:30 Fraccionamiento Nuevo Leon Mexico  0.2
14 Sep 2021 00:00 El Martillo United States  0.2
14 Sep 2021 00:00 Yarborough United States  0.2
15 Sep 2021 07:00 Gulf Park Estates United States  0.2
14 Sep 2021 13:00 West Point United States  0.2
14 Sep 2021 00:30 Buena Vista United States  0.2
16 Sep 2021 21:45 Bayleys Corner United States  0.2
16 Sep 2021 21:45 Navco United States  0.2
16 Sep 2021 21:45 Bellefontaine United States  0.2
16 Sep 2021 21:45 Mertz United States  0.2
16 Sep 2021 21:45 Chickasaw United States  0.2
16 Sep 2021 21:45 Cox United States  0.2
16 Sep 2021 21:45 Mobile United States  0.2
16 Sep 2021 21:45 Magazine United States  0.2
16 Sep 2021 21:45 Battles Wharf United States  0.2
16 Sep 2021 21:45 Blakeley United States  0.2
16 Sep 2021 21:45 Bridgehead United States  0.2
16 Sep 2021 21:45 Jackson Oak United States  0.2
16 Sep 2021 21:45 Park City United States  0.2
16 Sep 2021 21:45 Fairhope United States  0.2
16 Sep 2021 21:45 Point Clear United States  0.2
16 Sep 2021 21:45 Houstonville United States  0.2
16 Sep 2021 21:45 Montrose United States  0.2
16 Sep 2021 21:45 Buzbee Landing United States  0.2
16 Sep 2021 21:45 Seacliff United States  0.2
16 Sep 2021 21:45 Daphne United States  0.2
16 Sep 2021 21:45 Spanish Fort United States  0.2
14 Sep 2021 23:45 La Gloria Mexico  0.2
14 Sep 2021 23:45 Chaparral Mexico  0.2
15 Sep 2021 07:00 Hilda United States  0.2
16 Sep 2021 09:45 Mon Louis United States  0.2
16 Sep 2021 09:45 Darling Landing United States  0.2
16 Sep 2021 09:45 Bryant Landing United States  0.2
16 Sep 2021 09:45 Foots Landing United States  0.2
16 Sep 2021 09:45 Barnwell United States  0.2
16 Sep 2021 09:45 Turkey Branch United States  0.2
16 Sep 2021 09:45 Yupon United States  0.2
14 Sep 2021 13:00 Breton United States  0.2
14 Sep 2021 00:45 Corozo Guatemala  0.2
14 Sep 2021 00:45 Cabeza de Vaca Guatemala  0.2
14 Sep 2021 00:45 Baranca Belize  0.2
14 Sep 2021 00:45 San Juan Guatemala  0.2
14 Sep 2021 00:45 Cocoli Guatemala  0.2
14 Sep 2021 00:45 Buena Vista Guatemala  0.2
14 Sep 2021 00:45 Livingston Guatemala  0.2
16 Sep 2021 09:00 Delchamps United States  0.2
16 Sep 2021 09:00 Heron Bay United States  0.2
16 Sep 2021 09:00 Alabama Port United States  0.2
14 Sep 2021 22:15 El Mezquite Mexico  0.1
14 Sep 2021 00:45 Macho Creek Guatemala  0.1
14 Sep 2021 00:45 Punta Manabique Guatemala  0.1
14 Sep 2021 00:45 Puerto Barrios Guatemala  0.1
14 Sep 2021 00:45 Puerto Santo Tomas de Castilla Guatemala  0.1
14 Sep 2021 00:45 Cambalache Guatemala  0.1
14 Sep 2021 00:45 Piedra Parada Guatemala  0.1
14 Sep 2021 00:45 Corozo Guatemala  0.1
14 Sep 2021 00:45 La Graciosa Guatemala  0.1
14 Sep 2021 00:45 Machacal Guatemala  0.1
16 Sep 2021 08:15 Gautier United States  0.1
16 Sep 2021 08:15 Pascagoula United States  0.1
16 Sep 2021 08:15 Moss Point United States  0.1
16 Sep 2021 09:15 Madisonville United States  0.1
16 Sep 2021 09:15 Houltonville United States  0.1
16 Sep 2021 09:15 Lewisburg United States  0.1
16 Sep 2021 09:15 Chinchuba United States  0.1
16 Sep 2021 09:15 Mandeville United States  0.1
16 Sep 2021 08:45 Big Branch United States  0.1
14 Sep 2021 23:30 El Mezquital Mexico  0.1
14 Sep 2021 22:30 Rancho Magueyes Mexico  0.1
14 Sep 2021 01:00 Cattle Landing Belize  0.1
15 Sep 2021 23:30 Campeche Mexico  0.1
15 Sep 2021 23:30 Balantanche Mexico  0.1
14 Sep 2021 23:15 Ejido Guandalupe Victoria Mexico  0.1
14 Sep 2021 03:15 El Americano Mexico  0.1
14 Sep 2021 03:15 Los Ebanos Mexico  0.1
14 Sep 2021 03:15 El Porvenir Mexico  0.1
16 Sep 2021 05:45 La Chacara Nicaragua  0.1
16 Sep 2021 05:45 El Capulin Nicaragua  0.1
16 Sep 2021 05:45 Condega Honduras  0.1
16 Sep 2021 05:45 Cedeno Honduras  0.1
16 Sep 2021 05:45 Mangle Alto Nicaragua  0.1
16 Sep 2021 05:45 Albania Honduras  0.1
14 Sep 2021 04:15 El Puente Nicaragua  0.1
14 Sep 2021 04:15 Las Pozas Nicaragua  0.1
14 Sep 2021 00:15 San Jose de los Leones Mexico  0.1
14 Sep 2021 03:00 Conejo Mexico  0.1