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
Exposed countries Mexico, United States
Exposed population 920 thousand in Category 1 or higher
Maximum wind speed 148 km/h
Maximum storm surge 1.1 m (25 Jul 22:00 UTC)
Vulnerability Medium (Mexico)
Landfall between
25 Jul 2020 21:00 - 26 Jul 2020 03:00

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 0.1 m n.a. 1.5
Overall 148 km/h 1.1 m n.a. 1.5

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 960000 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 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
Green 9 25 Jul 2020 03:00 120 10.8 million Few people United States
Green 10 25 Jul 2020 09:00 130 8.7 million 100 thousand United States
Orange 11 25 Jul 2020 15:00 130 9.8 million 110 thousand United States, Mexico
Green 12 25 Jul 2020 21:00 148 9 million 20 thousand United States
Orange 13 26 Jul 2020 03:00 120 10.3 million 960 thousand United States, Mexico

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 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
9 25 Jul 2020 03:00 Tropical storm 102 no people no people 27.1, -94.8
GREEN
10 25 Jul 2020 09:00 Tropical storm 111 no people 410000 people 27, -95.8
GREEN
11 25 Jul 2020 15:00 Category 1 130 <1000 people 3.2 million people 27.1, -96.3
GREEN
12 25 Jul 2020 21:00 Category 1 148 360000 people 3.4 million people 26.8, -97.2 United States
ORANGE
13 26 Jul 2020 03:00 Category 1 120 920000 people 9.3 million people 26.6, -98 United States
GREEN
13 26 Jul 2020 12:00 Tropical storm 83 no people 9.6 million people 26.2, -99.1 Mexico
GREEN
13 27 Jul 2020 00:00 Tropical depression 56 no people no people 25.4, -100.6 Mexico
GREEN
13 27 Jul 2020 12:00 Tropical depression 37 no people no people 24.6, -101.9 Mexico
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
Mexico

Provinces

Region Province Country
Texas United States
Tamaulipas Mexico
Nuevo Leon Mexico

Populated places

Name Region Province Country City class Population
Raymondville Texas United States City 9700 people
Edinburg Texas United States City 48000 people
Donna Texas United States City 15000 people
McAllen Texas United States City 110000 people
Mission Texas United States City 45000 people
Pharr Texas United States City 47000 people
Rio Grande City Texas United States City 12000 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)
Edinburg Rio Grande Valley 24 0
Bell Airfield 9 0
Norman & White 27 0
Cannon Aviation 20 0
T R Funk Inc. 7 0
El Coyote Ranch 60 0
Moore Field 67 0
Armstrong Ranch 8 0
Gross (Private) 48 0
Mid Valley 21 0
Mid-Valley Dusters Inc 28 0
Miller International MFE 33 Civ. Paved Yes 7100
San Rafael Ranch 96 0
Charles R Johnson 3 0
Diamond O Ranch 128 0
Putz 35 0
Starr County 85 0

Dams

Reservoir Dam Name River Year
Monte Alto Reservoir Delta Lake Unit 2 Levee OS 1939
Lake Edinburg Retama Reservoir Levee OS 1935
Marte R. Gomez San Juan 1946

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

1.1 m

The maximum Storm surge height is  1.1m in Yarborough, United States. This height is estimated for 25 Jul 2020 22:00 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 (138 locations). Calculation based on advisory number 13 of 26 Jul 2020 03:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert Date (UTC) Name Country Storm surge height (m)
25 Jul 2020 22:00 Yarborough United States  1.1
26 Jul 2020 00:00 Flour Bluff United States  1.0
26 Jul 2020 00:00 Kenney Lane West Colonia United States  1.0
26 Jul 2020 00:00 Port Ingleside United States  1.0
26 Jul 2020 00:00 Indian Trails Lane Colonia United States  1.0
26 Jul 2020 00:00 Country Acres Colonia United States  1.0
26 Jul 2020 00:00 Country Estates Colonia United States  1.0
26 Jul 2020 00:00 Aransas Pass United States  1.0
26 Jul 2020 00:00 Estes United States  1.0
26 Jul 2020 00:00 Shell Ridge United States  1.0
25 Jul 2020 13:00 Palacios United States  0.8
25 Jul 2020 13:00 Port O'Connor United States  0.8
26 Jul 2020 00:00 Rockport United States  0.8
26 Jul 2020 00:00 Copano Village United States  0.8
26 Jul 2020 00:00 Fulton United States  0.8
25 Jul 2020 03:00 Nadeau United States  0.7
25 Jul 2020 03:00 Texas City Junction United States  0.7
25 Jul 2020 03:00 Bayou Vista United States  0.7
25 Jul 2020 03:00 Texas City United States  0.7
25 Jul 2020 03:00 Anderson Ways United States  0.7
25 Jul 2020 03:00 Virginia Point United States  0.7
25 Jul 2020 03:00 Port Bolivar United States  0.7
25 Jul 2020 03:00 Fort Travis United States  0.7
25 Jul 2020 03:00 Flake United States  0.7
25 Jul 2020 03:00 Elmgrove United States  0.7
25 Jul 2020 03:00 Crystal Beach United States  0.7
25 Jul 2020 03:00 Bolivar Peninsula United States  0.7
25 Jul 2020 19:00 Mustang Beach United States  0.7
25 Jul 2020 19:00 Port Aransas United States  0.7
25 Jul 2020 11:00 Hoskins United States  0.7
25 Jul 2020 11:00 Valasco Heights United States  0.7
25 Jul 2020 11:00 Freeport United States  0.7
25 Jul 2020 11:00 Mims United States  0.7
25 Jul 2020 11:00 Hoskins United States  0.7
25 Jul 2020 11:00 Port Morris United States  0.7
25 Jul 2020 03:00 High Island United States  0.7
25 Jul 2020 12:00 Matagorda United States  0.6
25 Jul 2020 12:00 Chinquapin United States  0.6
25 Jul 2020 06:00 Patton United States  0.6
25 Jul 2020 07:00 Red Fish Cove United States  0.6
25 Jul 2020 03:00 Johnson's Bayou United States  0.6
25 Jul 2020 03:00 Constance Beach United States  0.6
25 Jul 2020 03:00 Peveto Beach United States  0.6
25 Jul 2020 03:00 Holly Beach United States  0.6
25 Jul 2020 19:00 Spanish Village United States  0.6
25 Jul 2020 07:00 Jamaica Beach United States  0.6
25 Jul 2020 10:00 Gulf Park United States  0.6
25 Jul 2020 07:00 Bay Harbor United States  0.6
25 Jul 2020 07:00 Sea Isle United States  0.6
25 Jul 2020 06:00 Caplen United States  0.6
25 Jul 2020 06:00 Gilchrist United States  0.6
25 Jul 2020 03:00 Cameron United States  0.6
25 Jul 2020 07:00 Quintana United States  0.6
25 Jul 2020 07:00 Surfside United States  0.6
25 Jul 2020 07:00 Surfside Beach United States  0.6
25 Jul 2020 07:00 Galveston United States  0.6
25 Jul 2020 07:00 Bryan Beach United States  0.6
25 Jul 2020 04:00 Oak Grove United States  0.6
25 Jul 2020 02:00 Intracoastal City United States  0.6
25 Jul 2020 03:00 Grand Chenier United States  0.5
25 Jul 2020 02:00 Cheniere Au Tigre United States  0.5
25 Jul 2020 19:00 Holly Beach United States  0.4
25 Jul 2020 19:00 Laguna Vista United States  0.4
25 Jul 2020 14:00 South Padre Island United States  0.4
25 Jul 2020 14:00 Boca Chica United States  0.4
25 Jul 2020 03:00 Gordy United States  0.3
25 Jul 2020 03:00 South Bend United States  0.3
25 Jul 2020 03:00 Ellerstie United States  0.3
25 Jul 2020 19:00 Laguna Heights United States  0.3
25 Jul 2020 19:00 Port Isabel United States  0.3
25 Jul 2020 19:00 Kopernik Shores United States  0.3
25 Jul 2020 03:00 Leeville United States  0.3
25 Jul 2020 03:00 Gulf Park Estates United States  0.3
25 Jul 2020 03:00 Bassa Bassa United States  0.3
25 Jul 2020 03:00 West Point United States  0.3
25 Jul 2020 03:00 Grand Ecaille United States  0.2
25 Jul 2020 03:00 Hilda United States  0.2
25 Jul 2020 03:00 Gautier United States  0.2
25 Jul 2020 03:00 Breton United States  0.2
25 Jul 2020 16:00 Fraccionamiento Nuevo Leon Mexico  0.2
25 Jul 2020 03:00 Pascagoula United States  0.2
25 Jul 2020 03:00 Cheniere Caminada United States  0.2
25 Jul 2020 03:00 Grand Isle United States  0.2
25 Jul 2020 03:00 Sunrise United States  0.2
25 Jul 2020 03:00 Buras United States  0.2
25 Jul 2020 03:00 Balantanche Mexico  0.2
25 Jul 2020 03:00 Port Fourchon United States  0.2
25 Jul 2020 03:00 Ostrica United States  0.2
25 Jul 2020 03:00 Neptune United States  0.2
25 Jul 2020 03:00 Fort Jackson United States  0.2
25 Jul 2020 04:00 Sisal Mexico  0.2
25 Jul 2020 04:00 Celestum Mexico  0.2
25 Jul 2020 03:00 Boothville United States  0.1
25 Jul 2020 02:00 Bayou La Batre United States  0.1
25 Jul 2020 02:00 Coden United States  0.1
25 Jul 2020 02:00 Nelson United States  0.1
25 Jul 2020 02:00 Heron Bay United States  0.1
25 Jul 2020 02:00 Alabama Port United States  0.1
25 Jul 2020 03:00 Dauphin Island United States  0.1
25 Jul 2020 03:00 Fort Gaines United States  0.1
25 Jul 2020 03:00 Champoton Mexico  0.1
25 Jul 2020 03:00 Haltunchen Mexico  0.1
25 Jul 2020 03:00 Seybaplaya Mexico  0.1
25 Jul 2020 03:00 Fort Morgan United States  0.1
25 Jul 2020 02:00 Magnolia Springs United States  0.1
25 Jul 2020 02:00 Oyster Bay United States  0.1
25 Jul 2020 02:00 Bon Secaur United States  0.1
25 Jul 2020 02:00 Oak United States  0.1
25 Jul 2020 02:00 Gulf Shores United States  0.1
25 Jul 2020 02:00 Swift United States  0.1
25 Jul 2020 02:00 Romar Beach United States  0.1
25 Jul 2020 02:00 Miffin United States  0.1
25 Jul 2020 03:00 Hoquel Mexico  0.1
25 Jul 2020 03:00 Duvic United States  0.1
25 Jul 2020 02:00 Noham Mexico  0.1
25 Jul 2020 02:00 Santa Cruz Mexico  0.1
25 Jul 2020 02:00 Sabancuy Mexico  0.1
25 Jul 2020 06:00 Chelem Mexico  0.1
25 Jul 2020 06:00 Progreso Mexico  0.1
25 Jul 2020 06:00 Pixoy Mexico  0.1
25 Jul 2020 06:00 Telchac Puerto Mexico  0.1
25 Jul 2020 06:00 Chabihau Mexico  0.1
25 Jul 2020 06:00 Mina de Oro Mexico  0.1
25 Jul 2020 06:00 Cedar Key United States  0.1
25 Jul 2020 02:00 Gulf Highlands United States  0.1
25 Jul 2020 03:00 Cedar Grove United States  0.1
25 Jul 2020 04:00 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 05:00 Sun N Sand Beaches United States  0.1
25 Jul 2020 06:00 Dekle Beach United States  0.1
25 Jul 2020 06:00 Beacon Square United States  0.1
25 Jul 2020 06:00 Gulf Harbors United States  0.1
25 Jul 2020 06:00 New Port Richey United States  0.1
25 Jul 2020 06:00 Elfers United States  0.1
25 Jul 2020 06:00 Cerrito Mexico  0.1
25 Jul 2020 06:00 Chisahcab Mexico  0.1
26 Jul 2020 13:00 El Mezquital Mexico  0.1