Overall Green alert Tropical Cyclone for NICHOLAS-21
in United States
13 Sep 2021 18 UTC
click on to select bulletin time
Impact Single TC
Impact based on all weather systems in the area

Impact

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

Meteorological source GFS
Exposed countries United States
Exposed population No people in Category 1 or higher
Maximum wind speed 83 km/h
Maximum storm surge 0.8 m (13 Sep 23:45 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
GFS Current 83 km/h 0.8 m 124 mm 0.5
GFS Overall 94 km/h 1.2 m 322 mm 0.5

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

TOP

Wind

94 km/h

Up to 410 thousand can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 13 Sep 2021 18:00 UTC
CategoryCountryPopulation 
Tropical StormUnited States413,209 

See TC classification SSHS


Wind Impact Timeline

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


Alert N° 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 12:00 54 - - - - - - -
GREEN 2 12 Sep 2021 18:00 65 - - - - - - -
GREEN 3 13 Sep 2021 00:00 72 - - - - - - -
GREEN 4 13 Sep 2021 06:00 83 - - - - - - -
GREEN 5 13 Sep 2021 12:00 86 - - - - - - -
GREEN 6 13 Sep 2021 18:00 94 -
- - - - - United States
Download:





Impact estimation for the next 72h
TOP

Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 13 Sep 2021 18:00 UTC
LevelCountryPopulation 
100-250 mmUnited States, Mexico, Honduras, El Salvador5,356,934
+
United States5,323,158 
Mexico565 
Honduras33,177 
El Salvador34 
50-100 mmUnited States, Mexico, Honduras, El Salvador, Nicaragua13,119,310
+
United States8,302,251 
Mexico3,198,516 
Honduras956,461 
El Salvador184,408 
Nicaragua477,673 

Rain Impact Timeline

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


Alert N° 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 12:00 150 230 thousand
- - - - Mexico
Blue 2 12 Sep 2021 18:00 110 20 thousand
- - - - Mexico
Blue 3 13 Sep 2021 00:00 132 -
- - - - - Mexico
Blue 4 13 Sep 2021 06:00 159 -
- - - - - Mexico
Blue 5 13 Sep 2021 12:00 137 710 thousand
- - - - Mexico
Blue 6 13 Sep 2021 18:00 230 5.4 million
- - - - United States, Mexico, Honduras, El Salvador, Nicaragua




Impact estimation for the next 72h
TOP

StormSurge

0.8 m

The maximum Storm surge height is  0.8m in Alamo Beach, United States. This height is estimated for 13 Sep 2021 23:45 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 population - AoIs


Storm Surge Exposed locations

Calculation based on the bulletin of 13 Sep 2021 18:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
13 Sep 2021 23:45 Alamo Beach United States  0.8
13 Sep 2021 23:45 Point Comfort United States  0.8
13 Sep 2021 23:45 Magnolia Beach United States  0.8
13 Sep 2021 23:45 Indianola United States  0.8
13 Sep 2021 23:45 Olivia United States  0.8
13 Sep 2021 23:45 Port Alto United States  0.8
13 Sep 2021 23:45 Port O'Connor United States  0.8
13 Sep 2021 23:45 Carancahua United States  0.8
13 Sep 2021 23:45 El Campo Club Community United States  0.8
13 Sep 2021 23:45 Camp Hulen United States  0.7
13 Sep 2021 23:45 Palacios United States  0.7
14 Sep 2021 00:00 Matagorda United States  0.7
14 Sep 2021 00:00 Chinquapin United States  0.7
13 Sep 2021 23:15 Bacliff United States  0.6
13 Sep 2021 23:15 Nadeau United States  0.6
13 Sep 2021 23:15 Texas City Junction United States  0.6
13 Sep 2021 23:15 Bayou Vista United States  0.6
13 Sep 2021 23:15 San Leon United States  0.6
13 Sep 2021 23:15 Texas City United States  0.6
13 Sep 2021 23:15 Anderson Ways United States  0.6
13 Sep 2021 23:15 Virginia Point United States  0.6
13 Sep 2021 23:15 Galveston United States  0.6
13 Sep 2021 23:15 Port Bolivar United States  0.6
13 Sep 2021 23:15 Smith Point United States  0.6
13 Sep 2021 23:15 Fort Travis United States  0.6
13 Sep 2021 23:15 Flake United States  0.6
13 Sep 2021 23:15 Elmgrove United States  0.6
14 Sep 2021 00:00 Weedhaven United States  0.6
13 Sep 2021 20:15 Seadrift United States  0.6
14 Sep 2021 00:00 Webster United States  0.6
14 Sep 2021 00:00 Clear Lake City United States  0.6
14 Sep 2021 00:00 Nassau Bay United States  0.6
14 Sep 2021 00:00 Kilkare United States  0.6
14 Sep 2021 00:00 Lakeside United States  0.6
14 Sep 2021 00:00 Taylor Lake United States  0.6
14 Sep 2021 00:00 La Porte United States  0.6
14 Sep 2021 00:00 El Lago United States  0.6
14 Sep 2021 00:00 Clear Lake Shores United States  0.6
14 Sep 2021 00:00 Kemah United States  0.6
14 Sep 2021 00:00 Shoreacres United States  0.6
14 Sep 2021 00:00 Bayside Terrace United States  0.6
14 Sep 2021 00:00 Todville United States  0.6
14 Sep 2021 00:00 Morgan's Point United States  0.6
14 Sep 2021 00:00 Bayview United States  0.6
14 Sep 2021 00:00 Red Bluff United States  0.6
14 Sep 2021 00:00 Seabrook United States  0.6
14 Sep 2021 00:00 Morgan Point United States  0.6
14 Sep 2021 00:00 Baytown United States  0.6
14 Sep 2021 00:00 Pelly United States  0.6
14 Sep 2021 00:00 Cedar Point United States  0.6
14 Sep 2021 00:00 Beach City United States  0.6
13 Sep 2021 20:15 Maudlowe United States  0.6
13 Sep 2021 20:15 Tivoli United States  0.6
13 Sep 2021 20:15 Spanish Village United States  0.6
13 Sep 2021 20:15 Austwell United States  0.6
13 Sep 2021 22:00 Bay Harbor United States  0.5
13 Sep 2021 22:00 Sea Isle United States  0.5
13 Sep 2021 22:00 Hitchcock United States  0.5
13 Sep 2021 22:00 Jamaica Beach United States  0.5
14 Sep 2021 00:00 Gulf Park United States  0.5
14 Sep 2021 00:00 Bryan Beach United States  0.5
14 Sep 2021 00:00 Valasco Heights United States  0.5
14 Sep 2021 00:00 Freeport United States  0.5
13 Sep 2021 18:00 Kenney Lane West Colonia United States  0.5
13 Sep 2021 18:00 Port Ingleside United States  0.5
13 Sep 2021 18:00 Indian Trails Lane Colonia United States  0.5
13 Sep 2021 18:00 Country Acres Colonia United States  0.5
13 Sep 2021 18:00 Country Estates Colonia United States  0.5
13 Sep 2021 18:00 Aransas Pass United States  0.5
13 Sep 2021 18:00 Estes United States  0.5
13 Sep 2021 18:00 Mustang Beach United States  0.5
13 Sep 2021 18:00 Port Aransas United States  0.5
13 Sep 2021 18:00 Rockport United States  0.5
13 Sep 2021 18:00 Shell Ridge United States  0.5
13 Sep 2021 18:00 Copano Village United States  0.5
13 Sep 2021 18:00 Fulton United States  0.5
13 Sep 2021 22:00 Hoskins United States  0.5
13 Sep 2021 22:00 Peterson Landing United States  0.5
13 Sep 2021 22:00 Port Morris United States  0.5
13 Sep 2021 22:00 Red Fish Cove United States  0.5
14 Sep 2021 00:00 Quintana United States  0.5
14 Sep 2021 00:00 Surfside United States  0.5
14 Sep 2021 00:00 Surfside Beach United States  0.5
13 Sep 2021 18:00 Corpus Christi United States  0.5
13 Sep 2021 18:00 North Beach United States  0.5
13 Sep 2021 18:00 Gardendale United States  0.5
13 Sep 2021 18:00 Doyle United States  0.5
13 Sep 2021 18:00 Orange Grove United States  0.5
13 Sep 2021 18:00 Peary Place United States  0.5
13 Sep 2021 18:00 Portland United States  0.5
13 Sep 2021 18:00 Flour Bluff United States  0.5
13 Sep 2021 18:00 Caruthers Cove Colonia United States  0.5
13 Sep 2021 18:00 Ingleside United States  0.5
13 Sep 2021 18:00 Gregory United States  0.5
13 Sep 2021 18:00 Port Mansfield United States  0.5
14 Sep 2021 00:00 Hoskins United States  0.5
14 Sep 2021 00:00 Oak Island United States  0.5
14 Sep 2021 00:00 Anahuac United States  0.5
13 Sep 2021 22:45 Crystal Beach United States  0.5
13 Sep 2021 22:45 Patton United States  0.5
13 Sep 2021 22:45 Bolivar Peninsula United States  0.5
13 Sep 2021 22:45 Caplen United States  0.5
13 Sep 2021 22:45 Gilchrist United States  0.5
13 Sep 2021 21:15 Mims United States  0.5
13 Sep 2021 19:30 Lamar United States  0.5
13 Sep 2021 18:00 City Arroyo United States  0.4
13 Sep 2021 18:00 Arroyo City Subdivision Colonia United States  0.4
13 Sep 2021 22:30 High Island United States  0.4
13 Sep 2021 19:30 Sabine United States  0.4
13 Sep 2021 19:30 Sabine Pass United States  0.4
13 Sep 2021 19:45 Johnson's Bayou United States  0.3
13 Sep 2021 19:45 Constance Beach United States  0.3
13 Sep 2021 19:45 Peveto Beach United States  0.3
13 Sep 2021 19:45 Holly Beach United States  0.3
13 Sep 2021 18:00 Buena Vista United States  0.3
13 Sep 2021 18:00 Holly Beach United States  0.3
13 Sep 2021 18:00 Laguna Vista United States  0.3
13 Sep 2021 18:00 Laguna Heights United States  0.3
13 Sep 2021 18:00 Port Isabel United States  0.3
13 Sep 2021 18:00 Kopernik Shores United States  0.3
13 Sep 2021 18:00 South Padre Island United States  0.3
13 Sep 2021 18:00 Boca Chica United States  0.3
14 Sep 2021 00:00 Intracoastal City United States  0.3
14 Sep 2021 00:00 Collegeport United States  0.3
14 Sep 2021 00:00 Simpsonville United States  0.3
14 Sep 2021 00:00 Citrus Grove United States  0.3
13 Sep 2021 19:45 Cameron United States  0.3
13 Sep 2021 18:00 El Martillo United States  0.3
13 Sep 2021 18:00 Yarborough United States  0.3
13 Sep 2021 23:00 Cypremort Point United States  0.3
14 Sep 2021 00:00 Weeks United States  0.3
13 Sep 2021 23:15 Louisa United States  0.3
13 Sep 2021 23:15 Ivanhoe United States  0.3
13 Sep 2021 23:15 Cote Blanche Landing United States  0.3
13 Sep 2021 23:15 Freetown United States  0.3
13 Sep 2021 19:15 Oak Grove United States  0.3
13 Sep 2021 22:15 Florence United States  0.2
13 Sep 2021 19:30 Grand Chenier United States  0.2
13 Sep 2021 21:00 Holiday Beach United States  0.2
13 Sep 2021 21:00 Gordy United States  0.2
13 Sep 2021 21:00 South Bend United States  0.2
13 Sep 2021 21:00 Burns United States  0.2
13 Sep 2021 23:45 Martello Castle United States  0.2
13 Sep 2021 23:45 Chef Menteur United States  0.2
13 Sep 2021 23:45 Greens Ditch United States  0.2
13 Sep 2021 23:45 Lake Catherine United States  0.2
13 Sep 2021 23:45 Shell Beach United States  0.2
13 Sep 2021 23:45 Alluvial City United States  0.2
13 Sep 2021 23:45 Yscloskey United States  0.2
13 Sep 2021 23:45 Hopedale United States  0.2
13 Sep 2021 23:45 Saint Malo United States  0.2
13 Sep 2021 18:45 Cheniere Au Tigre United States  0.2
13 Sep 2021 18:00 Happy Jack United States  0.2
13 Sep 2021 18:00 Potash United States  0.2
13 Sep 2021 18:00 Hesperides United States  0.2
13 Sep 2021 18:00 Nairn United States  0.2
13 Sep 2021 18:00 Empire United States  0.2
13 Sep 2021 23:15 Fort Pike United States  0.2
13 Sep 2021 23:15 Riolets United States  0.2
13 Sep 2021 23:15 North Side United States  0.2
13 Sep 2021 23:15 English Lookout United States  0.2
13 Sep 2021 20:15 Ellerstie United States  0.2
13 Sep 2021 21:00 Howze Beach United States  0.2
13 Sep 2021 21:00 White Kitchen United States  0.2
13 Sep 2021 21:00 Pearlington United States  0.2
13 Sep 2021 21:00 Jackson Landing United States  0.2
13 Sep 2021 21:00 Ansley United States  0.2
13 Sep 2021 22:45 Bayside United States  0.2
13 Sep 2021 18:00 Sunrise United States  0.2
13 Sep 2021 18:00 Buras United States  0.2
13 Sep 2021 18:00 Ostrica United States  0.2
13 Sep 2021 18:00 Neptune United States  0.2
13 Sep 2021 18:00 Fort Jackson United States  0.2
13 Sep 2021 18:00 Boothville United States  0.2
13 Sep 2021 20:45 Bayside Park United States  0.2
13 Sep 2021 20:45 Lakeshore United States  0.2
13 Sep 2021 20:45 Klin United States  0.2
13 Sep 2021 20:45 Kiln United States  0.2
13 Sep 2021 20:45 Shoreline Park United States  0.2
13 Sep 2021 20:45 Silver Creek Acres United States  0.2
13 Sep 2021 20:45 Waveland United States  0.2
13 Sep 2021 20:45 Fenton United States  0.2
13 Sep 2021 20:45 Diamondhead United States  0.2
13 Sep 2021 20:45 Bay St Louis United States  0.2
13 Sep 2021 20:45 Henderson Point United States  0.2
13 Sep 2021 20:45 De Lisle United States  0.2
13 Sep 2021 20:45 Pass Christian United States  0.2
13 Sep 2021 20:45 Cuevas United States  0.2
13 Sep 2021 20:45 White Harbor United States  0.2
13 Sep 2021 18:30 Baranca Belize  0.2
13 Sep 2021 18:30 San Juan Guatemala  0.2
13 Sep 2021 18:30 Cocoli Guatemala  0.2
13 Sep 2021 18:30 Buena Vista Guatemala  0.2
13 Sep 2021 18:30 Livingston Guatemala  0.2
13 Sep 2021 18:30 Macho Creek Guatemala  0.2
13 Sep 2021 18:30 Punta Manabique Guatemala  0.2
13 Sep 2021 18:30 Puerto Barrios Guatemala  0.2
13 Sep 2021 18:15 Puerto Santo Tomas de Castilla Guatemala  0.2
13 Sep 2021 18:15 Cambalache Guatemala  0.2
13 Sep 2021 18:15 Piedra Parada Guatemala  0.2
13 Sep 2021 18:15 Corozo Guatemala  0.2
13 Sep 2021 18:15 La Graciosa Guatemala  0.2
13 Sep 2021 18:15 Machacal Guatemala  0.2
13 Sep 2021 18:00 Corozo Guatemala  0.2
13 Sep 2021 18:00 Cabeza de Vaca Guatemala  0.2
13 Sep 2021 23:45 Fraccionamiento Nuevo Leon Mexico  0.1
13 Sep 2021 18:15 Cattle Landing Belize  0.1
13 Sep 2021 18:00 Duvic United States  0.1
13 Sep 2021 18:00 Cocodrie United States  0.1
13 Sep 2021 21:30 La Chacara Nicaragua  0.1
13 Sep 2021 21:30 El Capulin Nicaragua  0.1
13 Sep 2021 21:30 Condega Honduras  0.1
13 Sep 2021 21:30 Cedeno Honduras  0.1
13 Sep 2021 21:30 Mangle Alto Nicaragua  0.1
13 Sep 2021 21:30 Albania Honduras  0.1
13 Sep 2021 18:15 Las Guayabas Mexico  0.1
13 Sep 2021 18:00 New Haven Belize  0.1
14 Sep 2021 00:00 Long Beach United States  0.1
13 Sep 2021 21:30 El Puente Nicaragua  0.1
13 Sep 2021 21:30 Las Pozas Nicaragua  0.1
14 Sep 2021 00:00 Gulfport United States  0.1
13 Sep 2021 18:15 Porfirio Diaz Mexico  0.1
13 Sep 2021 18:15 Chenkan Mexico  0.1
13 Sep 2021 18:15 Hoquel Mexico  0.1
13 Sep 2021 23:30 Pixoy Mexico  0.1
13 Sep 2021 23:30 Telchac Puerto Mexico  0.1
13 Sep 2021 18:00 La Gloria Mexico  0.1
13 Sep 2021 18:00 Chaparral Mexico  0.1
14 Sep 2021 00:00 Mississippi City United States  0.1
14 Sep 2021 00:00 Handsboro United States  0.1
13 Sep 2021 21:30 Celestum Mexico  0.1
13 Sep 2021 18:00 Campeche Mexico  0.1
13 Sep 2021 18:00 Balantanche Mexico  0.1
13 Sep 2021 23:00 Chabihau Mexico  0.1
13 Sep 2021 23:00 Mina de Oro Mexico  0.1
13 Sep 2021 22:15 Sisal Mexico  0.1
14 Sep 2021 00:00 Bassa Bassa United States  0.1
13 Sep 2021 19:00 Fivemile Oaks United States  0.1
13 Sep 2021 20:45 West Point United States  0.1