Overall Orange alert Tropical Cyclone for HANNA-20
in Mexico, United States

Impact

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

Meteorological source GDACS (NOAA)
Exposed countries Mexico, United States
Exposed population 920 thousand in Category 1 or higher
Maximum wind speed 148 km/h
Maximum storm surge 1.2 m (25 Jul 20:00 UTC)
Vulnerability Medium (Mexico)

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
GDACS Current 120 km/h 1.2 m n.a. 0.5
GDACS Overall 148 km/h 1.2 m n.a. 0.5

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

Wind

120 km/h Current

Up to 5100 people in Category 1 strength or higher (see SSHS)

Impact Timeline

Alert Date (UTC) Max Winds (km/h) Population in
Tropical Storm
Population in
Cat. 1 or higher
Countries
Green 1 23 Jul 2020 03:00 74 1.1 million No people United States
Green 2 23 Jul 2020 09:00 74 1.7 million No people United States, Mexico
Green 3 23 Jul 2020 15:00 83 1.5 million No people United States, Mexico
Green 4 23 Jul 2020 21:00 93 1.4 million No people United States, Mexico
Green 5 24 Jul 2020 03:00 102 2.6 million No people United States, Mexico
Green 6 24 Jul 2020 09:00 102 6.7 million No people United States, Mexico
Green 7 24 Jul 2020 15:00 102 7.5 million No people United States, Mexico
Green 8 24 Jul 2020 21:00 120 3.6 million 5 thousand United States

Bulletin Timeline

Alert Date (UTC) Category Max winds
(km/h)
Population in
Tropical Storm
Population in
Cat.1 or higher
Location (lat, lon) Countries
GREEN
1 23 Jul 2020 03:00 Tropical depression 46 no people no people 25.9, -88.2
GREEN
2 23 Jul 2020 09:00 Tropical depression 46 no people no people 26, -90
GREEN
3 23 Jul 2020 15:00 Tropical depression 56 no people no people 26.3, -90.7
GREEN
4 23 Jul 2020 21:00 Tropical depression 56 no people no people 26.1, -90.7
GREEN
5 24 Jul 2020 03:00 Tropical storm 65 no people no people 26.2, -91.4
GREEN
6 24 Jul 2020 09:00 Tropical storm 65 no people no people 26.7, -92.4
GREEN
7 24 Jul 2020 15:00 Tropical storm 74 no people no people 27.2, -93.2
GREEN
8 24 Jul 2020 21:00 Tropical storm 83 no people no people 27.3, -94.3
GREEN
8 25 Jul 2020 06:00 Tropical storm 102 620000 people <1000 people 27.4, -95.6 United States
GREEN
8 25 Jul 2020 18:00 Category 1 120 3.2 million people 5100 people 27.3, -97.2 United States
GREEN
8 26 Jul 2020 06:00 Tropical storm 74 2.9 million people no people 27, -98.6 Mexico
GREEN
8 26 Jul 2020 18:00 Tropical depression 46 no people no people 26.6, -100.3 Mexico
GREEN
8 27 Jul 2020 06:00 Tropical depression 37 no people no people 25.6, -102 Mexico
Actual track of the current bulletin
The alert for forecast greater than 3 days is limited to Orange level.



Exposed population

Countries

Country
United States

Provinces

Region Province Country Population
Texas United States 17.6 million people

Populated places

Name Region Province Country City class Population
Sarita Texas United States City -
Falfurrias Texas United States City 5200 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)
Brooks County 34 0
Cage Ranch 45 0
Kaffie Ranch 137 0

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

1.2 m

The maximum Storm surge height is  1.2m in Flour Bluff, United States. This height is estimated for 25 Jul 2020 20:00 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.

Locations affected by Storm surge (138 locations). Calculation based on advisory number 8 of 24 Jul 2020 21:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert Date (UTC) Name Country Storm surge height (m)
25 Jul 2020 20:00 Flour Bluff United States  1.2
25 Jul 2020 20:00 Kenney Lane West Colonia United States  1.2
25 Jul 2020 20:00 Port Ingleside United States  1.2
25 Jul 2020 20:00 Indian Trails Lane Colonia United States  1.2
25 Jul 2020 20:00 Country Acres Colonia United States  1.2
25 Jul 2020 20:00 Country Estates Colonia United States  1.2
25 Jul 2020 20:00 Aransas Pass United States  1.2
25 Jul 2020 20:00 Estes United States  1.2
25 Jul 2020 20:00 Shell Ridge United States  1.2
25 Jul 2020 20:00 Rockport United States  1.1
25 Jul 2020 20:00 Copano Village United States  1.1
25 Jul 2020 20:00 Fulton United States  1.1
26 Jul 2020 09:00 Flake United States  0.9
26 Jul 2020 09:00 Elmgrove United States  0.9
26 Jul 2020 09:00 Crystal Beach United States  0.9
26 Jul 2020 09:00 Nadeau United States  0.9
26 Jul 2020 09:00 Texas City Junction United States  0.9
26 Jul 2020 09:00 Bayou Vista United States  0.9
26 Jul 2020 09:00 Texas City United States  0.9
26 Jul 2020 09:00 Virginia Point United States  0.9
26 Jul 2020 09:00 Port Bolivar United States  0.9
26 Jul 2020 09:00 Fort Travis United States  0.9
25 Jul 2020 20:00 Yarborough United States  0.9
25 Jul 2020 05:00 Anderson Ways United States  0.8
26 Jul 2020 10:00 Bolivar Peninsula United States  0.8
25 Jul 2020 12:00 Palacios United States  0.8
25 Jul 2020 12:00 Port O'Connor United States  0.8
25 Jul 2020 17:00 Mustang Beach United States  0.8
25 Jul 2020 17:00 Port Aransas United States  0.8
25 Jul 2020 05:00 Hoskins United States  0.7
25 Jul 2020 05:00 Valasco Heights United States  0.7
25 Jul 2020 05:00 Freeport United States  0.7
25 Jul 2020 05:00 Mims United States  0.7
25 Jul 2020 05:00 Hoskins United States  0.7
25 Jul 2020 05:00 Port Morris United States  0.7
25 Jul 2020 05:00 High Island United States  0.7
25 Jul 2020 05:00 Patton United States  0.7
25 Jul 2020 16:00 Spanish Village United States  0.7
25 Jul 2020 04:00 Quintana United States  0.7
25 Jul 2020 04:00 Surfside United States  0.7
25 Jul 2020 04:00 Surfside Beach United States  0.7
25 Jul 2020 05:00 Jamaica Beach United States  0.7
25 Jul 2020 04:00 Red Fish Cove United States  0.7
25 Jul 2020 05:00 Caplen United States  0.7
25 Jul 2020 05:00 Gilchrist United States  0.7
25 Jul 2020 04:00 Bay Harbor United States  0.7
25 Jul 2020 04:00 Sea Isle United States  0.7
25 Jul 2020 04:00 Galveston United States  0.7
25 Jul 2020 05:00 Gulf Park United States  0.7
25 Jul 2020 05:00 Johnson's Bayou United States  0.7
25 Jul 2020 05:00 Constance Beach United States  0.7
25 Jul 2020 05:00 Peveto Beach United States  0.7
25 Jul 2020 04:00 Holly Beach United States  0.7
25 Jul 2020 04:00 Bryan Beach United States  0.6
25 Jul 2020 04:00 Cameron United States  0.6
25 Jul 2020 11:00 Matagorda United States  0.6
25 Jul 2020 11:00 Chinquapin United States  0.6
25 Jul 2020 04:00 Intracoastal City United States  0.6
25 Jul 2020 04:00 Oak Grove United States  0.6
25 Jul 2020 04:00 Grand Chenier United States  0.5
25 Jul 2020 05:00 Cheniere Au Tigre United States  0.5
26 Jul 2020 10:00 Gordy United States  0.4
26 Jul 2020 10:00 South Bend United States  0.4
26 Jul 2020 10:00 Ellerstie United States  0.4
25 Jul 2020 05:00 Leeville United States  0.3
25 Jul 2020 15:00 Holly Beach United States  0.3
25 Jul 2020 15:00 Laguna Vista United States  0.3
25 Jul 2020 05:00 Bassa Bassa United States  0.2
25 Jul 2020 04:00 Gulf Park Estates United States  0.2
25 Jul 2020 10:00 South Padre Island United States  0.2
25 Jul 2020 10:00 Boca Chica United States  0.2
25 Jul 2020 06:00 Grand Ecaille United States  0.2
25 Jul 2020 04:00 West Point United States  0.2
25 Jul 2020 04:00 Breton United States  0.2
25 Jul 2020 16:00 Laguna Heights United States  0.2
25 Jul 2020 16:00 Port Isabel United States  0.2
25 Jul 2020 14:00 Kopernik Shores United States  0.2
25 Jul 2020 04:00 Hilda United States  0.2
25 Jul 2020 04:00 Gautier United States  0.2
25 Jul 2020 04:00 Cheniere Caminada United States  0.2
25 Jul 2020 04:00 Grand Isle United States  0.2
25 Jul 2020 03:00 Pascagoula United States  0.2
25 Jul 2020 16:00 Fraccionamiento Nuevo Leon Mexico  0.2
25 Jul 2020 04:00 Balantanche Mexico  0.2
25 Jul 2020 05:00 Port Fourchon United States  0.2
25 Jul 2020 04:00 Sunrise United States  0.2
25 Jul 2020 04:00 Buras United States  0.2
25 Jul 2020 04:00 Ostrica United States  0.2
25 Jul 2020 04:00 Neptune United States  0.2
25 Jul 2020 05:00 Celestum Mexico  0.2
25 Jul 2020 05:00 Fort Jackson United States  0.1
25 Jul 2020 03:00 Bayou La Batre United States  0.1
25 Jul 2020 03:00 Coden United States  0.1
25 Jul 2020 03:00 Nelson United States  0.1
26 Jul 2020 13:00 Sisal Mexico  0.1
25 Jul 2020 05:00 Boothville United States  0.1
25 Jul 2020 04:00 Haltunchen Mexico  0.1
25 Jul 2020 04:00 Seybaplaya Mexico  0.1
25 Jul 2020 03:00 Heron Bay United States  0.1
25 Jul 2020 03:00 Alabama Port United States  0.1
25 Jul 2020 04:00 Champoton Mexico  0.1
26 Jul 2020 08:00 Surf United States  0.1
26 Jul 2020 08:00 Sun N Sand Beaches United States  0.1
26 Jul 2020 11:00 Playa de Tasajera Cuba  0.1
26 Jul 2020 08:00 Dauphin Island United States  0.1
26 Jul 2020 08:00 Fort Gaines United States  0.1
25 Jul 2020 03:00 Gulf Highlands United States  0.1
25 Jul 2020 03:00 Cedar Grove United States  0.1
25 Jul 2020 03:00 Gasque United States  0.1
25 Jul 2020 05:00 Porfirio Diaz Mexico  0.1
25 Jul 2020 05:00 Chenkan Mexico  0.1
25 Jul 2020 04:00 Hoquel Mexico  0.1
25 Jul 2020 04:00 Sabancuy Mexico  0.1
25 Jul 2020 04:00 Noham Mexico  0.1
26 Jul 2020 09:00 El Cajio Cuba  0.1
26 Jul 2020 12:00 Caserio Pescadores Cuba  0.1
25 Jul 2020 04:00 Duvic United States  0.1
25 Jul 2020 04:00 Fort Morgan United States  0.1
25 Jul 2020 03:00 Magnolia Springs United States  0.1
25 Jul 2020 03:00 Oyster Bay United States  0.1
25 Jul 2020 03:00 Bon Secaur United States  0.1
25 Jul 2020 03:00 Oak United States  0.1
25 Jul 2020 03:00 Gulf Shores United States  0.1
25 Jul 2020 03:00 Swift United States  0.1
25 Jul 2020 03:00 Romar Beach United States  0.1
25 Jul 2020 03:00 Miffin United States  0.1
26 Jul 2020 08:00 Lanark Village United States  0.1
26 Jul 2020 08:00 Big Blackjack Landing United States  0.1
25 Jul 2020 04:00 Santa Cruz Mexico  0.1
26 Jul 2020 08:00 Dekle Beach United States  0.1
26 Jul 2020 08:00 Keaton Beach United States  0.1
26 Jul 2020 08:00 Fish Creek United States  0.1
25 Jul 2020 07:00 Telchac Puerto Mexico  0.1
25 Jul 2020 07:00 Chabihau Mexico  0.1
25 Jul 2020 07:00 Mina de Oro Mexico  0.1
25 Jul 2020 07:00 Cedar Key United States  0.1
26 Jul 2020 09:00 Surgidero de Batabano Cuba  0.1
26 Jul 2020 09:00 Batabano Cuba  0.1