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 GDACS
Exposed countries United States
Exposed population 480 thousand in Category 1 or higher
Maximum wind speed 120 km/h
Maximum storm surge 1.3 m (14 Sep 15:00 UTC)
Vulnerability Low (United States)
Landfall between
14 Sep 2021 00:00 - 14 Sep 2021 12:00

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 102 km/h 1.3 m n.a. 0.5
Overall 120 km/h 1.3 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

102 km/h Current Max.

Up to 9.4 million 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 12 Sep 2021 15:00 102 9.4 million No people Mexico, 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 12 Sep 2021 15:00 Tropical storm 65 no people no people 20.5, -94.8
GREEN
1 13 Sep 2021 00:00 Tropical storm 74 no people 5300 people 21.9, -95.7
GREEN
1 13 Sep 2021 12:00 Tropical storm 83 no people 1.6 million people 24.1, -96.6
GREEN
1 14 Sep 2021 00:00 Tropical storm 93 no people 2.3 million people 26.4, -96.9
GREEN
1 14 Sep 2021 12:00 Tropical storm 102 no people 7.4 million people 28.2, -96.5 United States
GREEN
1 15 Sep 2021 00:00 Tropical storm 74 no people 7.2 million people 29.4, -95.9 United States
GREEN
1 15 Sep 2021 12:00 Tropical depression 56 no people no people 30.3, -95.2 United States
GREEN
1 16 Sep 2021 12:00 Tropical depression 46 no people no people 31, -94.8 United States
GREEN
1 17 Sep 2021 12:00 Tropical depression 37 no people no people 32, -94.5 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
Mexico
United States

Provinces

Region Province Country
Tamaulipas Mexico
Texas United States

Populated places

Name Region Province Country City class Population
Valle Hermoso Tamaulipas Mexico City 48000 people
Matamoros Tamaulipas Mexico City 430000 people
Brownsville Texas United States City 140000 people
San Benito Texas United States City 23000 people
Harlingen Texas United States City 58000 people
Mercedes Texas United States City 14000 people
Donna Texas United States City 15000 people
Edinburg Texas United States City 48000 people
Raymondville Texas United States City 9700 people
Sarita Texas United States City -
Kingsville Texas United States City 26000 people
Corpus Christi Texas United States Major city 280000 people
Robstown Texas United States City 13000 people
Sinton Texas United States City 5700 people
Mathis Texas United States City 5000 people
Port Lavaca Texas United States City 12000 people
Beeville Texas United States City 13000 people
Freeport Texas United States City 13000 people
Bay City Texas United States City 19000 people
Victoria Texas United States City 61000 people
Edna Texas United States City 5900 people
Angleton Texas United States City 18000 people
Galveston Texas United States City 57000 people
El Campo Texas United States City 11000 people
Texas City Texas United States City 42000 people
Guero Texas United States City -
Yoakum Texas United States City 5700 people
New Territory Texas United States City 14000 people
Pasadena Texas United States City 140000 people
Baytown Texas United States City 66000 people
Cinco Ranch Texas United States City 11000 people
Houston Texas United States Major city 2 million people
Atascocita Texas United States City 36000 people
Dayton Texas United States City 5700 people
Liberty Texas United States City 8000 people
Conroe Texas United States City 37000 people
Cleveland Texas United States City 7600 people
Huntsville Texas United States City 35000 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)
La Pesca 5 0
Carvajal 7 0
El Mezquite 5 0
Matamoros MAM 8 Civ. Paved Yes 7500
South Padre Island International BRO 7 Civ. Paved Yes 7400
U S Coast Guard Station 1 0
Columbia Valley Regional 8 0
Southeastern Helicopters 2 0
AG Air Inc. 9 0
Drennan Farm 8 0
Port Isabel Cameron County 6 Civ. Paved Yes 8000
Rancho Buena Vista 6 0
San Benito Municipal 9 0
Farmer's Co-op 11 0
Valley Baptist Medical Center 18 0
Texas Air Museum 9 0
Shofner Farms 17 0
Progreso 21 0
Rio Grande Valley International HRL 11 Civ. Paved Yes 8300
Old Reb 18 0
Mid Valley 21 0
Mid-Valley Dusters Inc 28 0
Cannon Aviation 20 0
Charles R Johnson 3 0
T R Funk Inc. 7 0
Bell Airfield 9 0
Norman & White 27 0
Edinburg Rio Grande Valley 24 0
Armstrong Ranch 8 0
Waldron Field Nalf 8 0
Kingsville NAS NQI 15 Mil. Paved No 8000
Mustang Island 3 0
Corpus Christi NAS NGP 6 Mil. Paved Yes 8000
Dean 14 0
Cabaniss Field Nalf NGW 10 0
Mustang Beach 2 0
Bishop Municipal 17 0
D.F.C.H. 9 0
Texas Dept. of Public Safety 11 0
Cuddihy Field CUX 12 0
Industrial Helicopters Inc 3 0
Memorial Medical Center 12 0
Oliver Till 26 0
Jbh Aerospace 5 0
Corpus Christi International CRP 13 Civ. Paved Yes 7500
Aransas Pass 1 0
San Jose Island 3 0
Coastal Bend Hospital 3 0
T P Mc Campbell 5 0
Nueces County 24 0
Hunt 12 0
Hpl 18 0
Tgp 1 33 0
Magee 11 0
Rabb Dusting Inc 25 0
High Man Tower Airstrip 27 0
Old Hoppe Place 29 0
Aransas Natl Wldlife Refuge 3 0
Aransas County RKP 8 Civ. Paved Yes 5600
Kalt Ranch 5 0
San Patricio County 15 0
San Patricio International 15 0
Pierce Field 2 0
Cig 804 7 0
Air Logistics 2 0
Mellon Ranch 12 0
Port O'connor Base (Ehi) 2 0
Rooke Field RFG 17 Civ. Paved No 4500
Matagorda Peninsula 3 0
Whatley Flying Service 6 0
Big Duke's Place 2 0
Gulf Coast 11 0
Tanner's 5 0
Memorial Hospital 15 0
Matagorda Shore Facility 2 0
Chase Field NAS NIR 58 0
Green Lake Ranch 15 0
Sartwelle Ranch 5 0
Cig 806 7 0
Beeville Municipal 82 0
Calhoun County 10 0
Palacios Municipal PSX 5 Civ. Paved Yes 5000
Trull 5 0
Wolf Point 4 0
South Texas Project 10 0
Kubecka Aviation 6 0
M-I Drilling Fluids Company 2 0
Hercules Marine Services Corp 1 0
Fay Ranch 8 0
Whites 13 0
Goliad Nalf 99 0
Eagle Air Park 5 0
Fehmel Dusting Service 15 0
W D Cornilius Ranch 14 0
Bay City Municipal BBC 14 0
Victoria Bank & Trust Motor Garage 35 0
Citizens Medical Center 29 0
Cig 809 16 0
County - Foster VCT 35 Civ. Paved Yes 9100
Brazoria H Ferry BZT unknown 0

Ports

Name LOCODE Country
Brownsville USBRO Wake Island
Port Isabel USPIS Wake Island
Corpus Christi USCRP Wake Island
Port Aransas Wake Island
Port Ingleside Wake Island
Ingleside Wake Island
Rockport Wake Island
Port O'Connor Wake Island
Palacios Wake Island
Point Comfort USPCR Wake Island
Port Lavaca USPLV Wake Island
Freeport USFRP Wake Island
Galveston USGLS Wake Island
Port Bolivar Wake Island
Texas City USTXT Wake Island
Baytown USHPY Wake Island
Pasadena USPSD Wake Island
Port Adams USNSW Wake Island
Houston Wake Island

Dams

Reservoir Dam Name River Year
Monte Alto Reservoir Delta Lake Unit 2 Levee OS 1939
Lake Edinburg Retama Reservoir Levee OS 1935
Wesley E. Seale Dam Nueces River 1958
Cooling Reservoir Dam Offstream Colorado River 1981
Prudential Reservoir 3 Trib. Kellers Creek 1976
Coleto Creek Dam Coleto Creek 1980
Palmetto Bend Dam Navidad River 1981
Brazoria Reservoir Dam Offstream Brazos River 1954
William Harris Reservoir Dam Offstream Oyster Creek 1947
Lake George Smithers Lake Dam Dry Creek 1957
Cedar Bayou Generating Pond Levee Cedar Bayou 1972
Lake Anahuac Levee Turtle Bayou n/a
Lake Houston Dam San Jacinto River 1954
Cedar Creek Dam Cedar Creek 1977
Conroe Dam West Fork of San Jacinto River 1973
Lewis Creek Dam Lewis Creek 1969
Livingston Dam Trinity River 1969
Gibbons Creek Dam Gibbons Creek 1981

Nuclear plants

Name Country Reactors
SOUTH TEXAS UNITED STATES 2

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

1.3 m

The maximum Storm surge height is  1.3m in Port O'Connor, United States. This height is estimated for 14 Sep 2021 15:00 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 (149 locations). Calculation based on advisory number 1 of 12 Sep 2021 15:00:00 UTC. (Simulation using 2 minute resolution)

Alert Date (UTC) Name Country Storm surge height (m)
14 Sep 2021 15:00 Port O'Connor United States  1.3
14 Sep 2021 15:00 Palacios United States  1.3
14 Sep 2021 16:00 Matagorda United States  1.0
15 Sep 2021 00:00 Flake United States  0.9
15 Sep 2021 00:00 Elmgrove United States  0.9
15 Sep 2021 00:00 Crystal Beach United States  0.9
15 Sep 2021 00:00 Bolivar Peninsula United States  0.9
14 Sep 2021 23:00 Nadeau United States  0.8
14 Sep 2021 23:00 Texas City Junction United States  0.8
14 Sep 2021 23:00 Bayou Vista United States  0.8
14 Sep 2021 23:00 Texas City United States  0.8
14 Sep 2021 23:00 Virginia Point United States  0.8
14 Sep 2021 23:00 Port Bolivar United States  0.8
14 Sep 2021 23:00 Fort Travis United States  0.8
13 Sep 2021 22:00 South Padre Island United States  0.8
13 Sep 2021 22:00 Boca Chica United States  0.8
14 Sep 2021 16:00 Chinquapin United States  0.8
14 Sep 2021 22:00 Anderson Ways United States  0.8
15 Sep 2021 01:00 Patton United States  0.7
14 Sep 2021 11:00 Spanish Village United States  0.7
14 Sep 2021 20:00 Bay Harbor United States  0.7
14 Sep 2021 20:00 Sea Isle United States  0.7
14 Sep 2021 19:00 Red Fish Cove United States  0.7
15 Sep 2021 00:00 High Island United States  0.7
15 Sep 2021 01:00 Caplen United States  0.6
14 Sep 2021 20:00 Jamaica Beach United States  0.6
15 Sep 2021 00:00 Gilchrist United States  0.6
14 Sep 2021 23:00 Johnson's Bayou United States  0.6
14 Sep 2021 23:00 Constance Beach United States  0.6
14 Sep 2021 23:00 Peveto Beach United States  0.6
15 Sep 2021 05:00 Grand Chenier United States  0.6
15 Sep 2021 03:00 Cheniere Au Tigre United States  0.6
14 Sep 2021 22:00 Holly Beach United States  0.6
14 Sep 2021 22:00 Cameron United States  0.6
14 Sep 2021 20:00 Galveston United States  0.6
14 Sep 2021 17:00 Gulf Park United States  0.6
14 Sep 2021 17:00 Valasco Heights United States  0.6
14 Sep 2021 17:00 Freeport United States  0.6
14 Sep 2021 18:00 Surfside United States  0.6
14 Sep 2021 19:00 Mims United States  0.6
14 Sep 2021 18:00 Surfside Beach United States  0.6
14 Sep 2021 19:00 Hoskins United States  0.6
14 Sep 2021 19:00 Port Morris United States  0.6
13 Sep 2021 21:00 Holly Beach United States  0.6
13 Sep 2021 21:00 Laguna Vista United States  0.6
13 Sep 2021 21:00 Laguna Heights United States  0.6
13 Sep 2021 21:00 Port Isabel United States  0.6
14 Sep 2021 17:00 Hoskins United States  0.6
14 Sep 2021 18:00 Quintana United States  0.6
13 Sep 2021 22:00 Kopernik Shores United States  0.5
15 Sep 2021 01:00 Oak Grove United States  0.5
14 Sep 2021 17:00 Bryan Beach United States  0.5
13 Sep 2021 20:00 Fraccionamiento Nuevo Leon Mexico  0.5
14 Sep 2021 08:00 Kenney Lane West Colonia United States  0.4
14 Sep 2021 08:00 Port Ingleside United States  0.4
14 Sep 2021 08:00 Indian Trails Lane Colonia United States  0.4
14 Sep 2021 08:00 Country Acres Colonia United States  0.4
14 Sep 2021 08:00 Country Estates Colonia United States  0.4
14 Sep 2021 08:00 Aransas Pass United States  0.4
14 Sep 2021 08:00 Estes United States  0.4
14 Sep 2021 07:00 Mustang Beach United States  0.4
14 Sep 2021 07:00 Port Aransas United States  0.4
14 Sep 2021 08:00 Rockport United States  0.4
14 Sep 2021 08:00 Shell Ridge United States  0.4
14 Sep 2021 08:00 Copano Village United States  0.4
14 Sep 2021 08:00 Fulton United States  0.4
14 Sep 2021 06:00 Flour Bluff United States  0.4
15 Sep 2021 03:00 Leeville United States  0.4
14 Sep 2021 05:00 Yarborough United States  0.4
15 Sep 2021 03:00 Bassa Bassa United States  0.3
15 Sep 2021 01:00 Gulf Park Estates United States  0.3
15 Sep 2021 02:00 West Point United States  0.3
15 Sep 2021 02:00 Port Fourchon United States  0.3
15 Sep 2021 01:00 Hilda United States  0.3
15 Sep 2021 01:00 Gautier United States  0.3
15 Sep 2021 02:00 Breton United States  0.3
13 Sep 2021 11:00 San Jose de los Leones Mexico  0.3
13 Sep 2021 14:00 El Porvenir Mexico  0.3
13 Sep 2021 14:00 Los Ebanos Mexico  0.3
15 Sep 2021 03:00 Grand Ecaille United States  0.3
15 Sep 2021 01:00 Pascagoula United States  0.2
13 Sep 2021 15:00 El Mezquital Mexico  0.2
15 Sep 2021 02:00 Balantanche Mexico  0.2
15 Sep 2021 04:00 Cheniere Caminada United States  0.2
15 Sep 2021 04:00 Grand Isle United States  0.2
15 Sep 2021 05:00 Celestum Mexico  0.2
15 Sep 2021 03:00 Dauphin Island United States  0.2
15 Sep 2021 03:00 Fort Gaines United States  0.2
15 Sep 2021 02:00 Ostrica United States  0.2
13 Sep 2021 08:00 Rancho Nuevo Mexico  0.2
15 Sep 2021 02:00 Sunrise United States  0.2
15 Sep 2021 02:00 Buras United States  0.2
15 Sep 2021 03:00 Neptune United States  0.2
15 Sep 2021 02:00 Haltunchen Mexico  0.2
15 Sep 2021 02:00 Seybaplaya Mexico  0.2
15 Sep 2021 02:00 Champoton Mexico  0.2
15 Sep 2021 05:00 Sisal Mexico  0.2
15 Sep 2021 01:00 Bayou La Batre United States  0.2
15 Sep 2021 01:00 Coden United States  0.2
15 Sep 2021 01:00 Nelson United States  0.2
15 Sep 2021 03:00 Fort Morgan United States  0.2
13 Sep 2021 00:00 El Naranjal Mexico  0.1
13 Sep 2021 16:00 La Mata Mexico  0.1
13 Sep 2021 16:00 Agua Dulce Mexico  0.1
13 Sep 2021 11:00 La Pesca Mexico  0.1
13 Sep 2021 09:00 Los Pericos Mexico  0.1
15 Sep 2021 01:00 Heron Bay United States  0.1
15 Sep 2021 01:00 Alabama Port United States  0.1
15 Sep 2021 03:00 Fort Jackson United States  0.1
15 Sep 2021 03:00 Cedar Grove United States  0.1
15 Sep 2021 01:00 Magnolia Springs United States  0.1
15 Sep 2021 01:00 Oyster Bay United States  0.1
15 Sep 2021 01:00 Bon Secaur United States  0.1
15 Sep 2021 01:00 Oak United States  0.1
15 Sep 2021 01:00 Gulf Shores United States  0.1
15 Sep 2021 01:00 Swift United States  0.1
15 Sep 2021 01:00 Romar Beach United States  0.1
15 Sep 2021 01:00 Miffin United States  0.1
13 Sep 2021 01:00 Cabo Rojito Mexico  0.1
13 Sep 2021 10:00 Rancho de Piedra Mexico  0.1
13 Sep 2021 00:00 Tamiahua Mexico  0.1
15 Sep 2021 04:00 Hoquel Mexico  0.1
15 Sep 2021 01:00 Sabancuy Mexico  0.1
15 Sep 2021 01:00 Noham Mexico  0.1
15 Sep 2021 03:00 Gulf Highlands United States  0.1
15 Sep 2021 03:00 Gasque United States  0.1
13 Sep 2021 05:00 Pueblo Viejo Mexico  0.1
13 Sep 2021 05:00 Primero de Mayo Mexico  0.1
13 Sep 2021 05:00 Tampico Alta Mexico  0.1
13 Sep 2021 11:00 Tepeguahe Mexico  0.1
15 Sep 2021 06:00 Porfirio Diaz Mexico  0.1
15 Sep 2021 06:00 Chenkan Mexico  0.1
15 Sep 2021 06:00 Santa Cruz Mexico  0.1
15 Sep 2021 03:00 Boothville United States  0.1
15 Sep 2021 07:00 Chelem Mexico  0.1
15 Sep 2021 07:00 Progreso Mexico  0.1
15 Sep 2021 07:00 Pixoy Mexico  0.1
15 Sep 2021 07:00 Telchac Puerto Mexico  0.1
15 Sep 2021 07:00 Chabihau Mexico  0.1
15 Sep 2021 07:00 Mina de Oro Mexico  0.1
15 Sep 2021 07:00 Cerrito Mexico  0.1
15 Sep 2021 07:00 Chisahcab Mexico  0.1
15 Sep 2021 03:00 Duvic United States  0.1
12 Sep 2021 23:00 Laja Mexico  0.1
13 Sep 2021 01:00 El Tular Mexico  0.1
15 Sep 2021 08:00 Santo Domingo Mexico  0.1
15 Sep 2021 08:00 Rio Lagartos Mexico  0.1
15 Sep 2021 11:00 El Cuyo Mexico  0.1
15 Sep 2021 03:00 Destin United States  0.1