Overall Green Tropical Cyclone for BORIS-26 in Mexico from 07 Jun 2026 15:00 UTC to 09 Jun 2026 15:00 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve awareness, information exchange and coordination in the first phase after major sudden-onset disasters.

Overall Green Tropical Cyclone for BORIS-26

in Mexico

09 Jun 2026 15 UTC

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Meteorological source:

GDACS NOAA

Impact Single TC

Impact based on all weather systems in the area

Impact

Tropical Cyclone BORIS-26 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source	GDACS
Exposed countries	Mexico
Exposed population	No people in Category 1 or higher
Maximum wind speed	74 km/h
Maximum storm surge	0.4 m (09 Jun 07:00 UTC)
Vulnerability	Medium (Mexico)
Landfall	between 09 Jun 2026 03:00 - 09 Jun 2026 09:00 in Mexico

GDACS Score

GDACS score for Tropical Cyclones is 0.5 (GREEN Level), 1.5 (ORANGE Level), 2.5 (RED Level)
For more info on GDACS core click here.

	Wind	Storm surge	Rainfall	GDACS score
Current	46 km/h	0.4 m	n.a.	0.5
Overall	74 km/h	0.4 m	n.a.	0.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track) based on GDACS impact

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Wind

46 km/h Current Max.

Up to 1.2 million people in Tropical Storm strength or higher (see SSHS)

Impact Timeline

N°	Date (UTC)	Max Winds (km/h)	Population in Tropical Storm or higher	Population in Cat 1. or higher	Countries
1	07 Jun 2026 15:00	74	3.7 million	No people	Mexico
2	07 Jun 2026 21:00	74	2.7 million	No people	Mexico
3	08 Jun 2026 03:00	65	2.9 million	No people	Mexico
4	08 Jun 2026 09:00	65	2 million	No people	Mexico
5	08 Jun 2026 15:00	74	2 million	No people	Mexico
6	08 Jun 2026 18:00	74	2.1 million	No people	Mexico
7	08 Jun 2026 21:00	74	1.7 million	No people	Mexico
8	09 Jun 2026 03:00	74	800 thousand	No people	Mexico
9	09 Jun 2026 09:00	65	1.7 million	No people	Mexico
10	09 Jun 2026 15:00	46	1.2 million	No people	Mexico

Bulletin Timeline

N°	Date (UTC)	Category (SSHS)	Max winds (km/h)	Population in Cat.1 or higher	Population in Tropical Storm or higher	Location (lat, lon)	Countries
1	07 Jun 2026 15:00	Tropical depression	56	no people	110000 people	15.5, -99.9
2	07 Jun 2026 21:00	Tropical depression	56	no people	1.3 million people	15.7, -99.7
3	08 Jun 2026 03:00	Tropical depression	56	no people	420000 people	15.3, -99.4
4	08 Jun 2026 09:00	Tropical storm	65	no people	640000 people	15.9, -99.2
5	08 Jun 2026 15:00	Tropical storm	65	no people	1.4 million people	16, -99.2
6	08 Jun 2026 18:00	Tropical storm	74	no people	270000 people	15.3, -99.2
7	08 Jun 2026 21:00	Tropical storm	74	no people	1.3 million people	15.5, -99
8	09 Jun 2026 03:00	Tropical storm	74	no people	810000 people	16, -98.3
9	09 Jun 2026 09:00	Tropical storm	65	no people	1.7 million people	16.4, -98.4	Mexico
10	09 Jun 2026 15:00	Tropical depression	46	no people	no people	16.9, -98.9	Mexico
10	10 Jun 2026 00:00	Tropical depression	37	no people	no people	17.3, -99.7	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	Population in Tropical Storm or higher strength
Mexico	1.2 million people

Provinces

Region Province	Country	Population in Tropical Storm or higher strength
Guerrero	Mexico	820000 people
Oaxaca	Mexico	390000 people

Populated places

Name	Region Province	Country	City class	Population
Ayutla	Guerrero	Mexico	City	9900 people
San Marcos	Guerrero	Mexico	City	12000 people
Manzintla	Guerrero	Mexico	City	-
Jamiltepec	Oaxaca	Mexico	City	9800 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)
Ta lo de Soto		149				0
Pinotepa Nacional	PNO	unknown				0

Dams

Reservoir	Dam Name	River	Year
	El Guineo	Nexpa	1985

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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.

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StormSurge

0.4 m

The maximum Storm surge height is 0.4m in Huajapan, Mexico. This height is estimated for 09 Jun 2026 07:00 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 (64 locations). Calculation based on advisory number 9 of 09 Jun 2026 09:00:00 UTC. (Simulation using 0.5 minute resolution)

Level	Date (UTC)	Name	Country	Storm surge height (m)
	09 Jun 2026 07:00	Huajapan	Mexico	0.4
	09 Jun 2026 07:00	El Roble	Mexico	0.4
	09 Jun 2026 09:00	Cachimba	Mexico	0.3
	09 Jun 2026 04:00	Lagarto	Mexico	0.2
	09 Jun 2026 04:00	Santa Maria Xandani	Mexico	0.2
	09 Jun 2026 04:00	Union Hidalgo	Mexico	0.2
	09 Jun 2026 04:00	Chicapa	Mexico	0.2
	09 Jun 2026 05:00	La Majada	Mexico	0.2
	09 Jun 2026 05:00	Boqueron	Mexico	0.2
	09 Jun 2026 05:00	Solo Dios	Mexico	0.2
	09 Jun 2026 08:00	Arista	Mexico	0.2
	09 Jun 2026 10:00	San Dionisio del Mar	Mexico	0.2
	09 Jun 2026 05:00	Buenavista	Mexico	0.2
	09 Jun 2026 03:00	Pesqueria	Mexico	0.2
	09 Jun 2026 05:00	Pasito de la Senora	Mexico	0.2
	09 Jun 2026 09:00	San Francisco del Mar	Mexico	0.2
	09 Jun 2026 04:00	Tamiahua	Mexico	0.2
	09 Jun 2026 04:00	La Verde	Guatemala	0.2
	09 Jun 2026 04:00	El Tulate	Guatemala	0.2
	09 Jun 2026 06:00	Pie Cerro	Mexico	0.1
	09 Jun 2026 04:00	Puerto de San Benito	Mexico	0.1
	09 Jun 2026 04:00	Tenixtepec	Mexico	0.1
	09 Jun 2026 03:00	Costa Rica	Mexico	0.1
	09 Jun 2026 03:00	La Concepion	Mexico	0.1
	09 Jun 2026 04:00	Laja	Mexico	0.1
	09 Jun 2026 06:00	El Mezquital	Mexico	0.1
	09 Jun 2026 06:00	Los Ebanos	Mexico	0.1
	09 Jun 2026 04:00	Champerico	Guatemala	0.1
	09 Jun 2026 04:00	Tecojate	Guatemala	0.1
	09 Jun 2026 11:00	Tierra Colorada	Mexico	0.1
	09 Jun 2026 05:00	Salina Cruz	Mexico	0.1
	09 Jun 2026 04:00	Barra de San Jose	Mexico	0.1
	09 Jun 2026 05:00	Majada Villalobos	Mexico	0.1
	09 Jun 2026 09:00	El Porvenir	Mexico	0.1
	09 Jun 2026 07:00	Port O'Connor	United States	0.1
	09 Jun 2026 07:00	Palacios	United States	0.1
	09 Jun 2026 04:00	Tahuesco	Guatemala	0.1
	09 Jun 2026 04:00	La Herradura	El Salvador	0.1
	09 Jun 2026 04:00	El Zapote	El Salvador	0.1
	09 Jun 2026 04:00	Hacienda La Chepona	El Salvador	0.1
	09 Jun 2026 04:00	Nueva Venecia	Guatemala	0.1
	09 Jun 2026 04:00	San Jose Rama Blanca	Guatemala	0.1
	09 Jun 2026 04:00	Sipacate	Guatemala	0.1
	09 Jun 2026 04:00	Tecolutla	Mexico	0.1
	09 Jun 2026 04:00	Isla de Mendez	El Salvador	0.1
	09 Jun 2026 04:00	El Espiritu Santo	El Salvador	0.1
	09 Jun 2026 05:00	Corral de Mulas	El Salvador	0.1
	09 Jun 2026 04:00	Barra Madre Vieja	Guatemala	0.1
	08 Jun 2026 09:00	Marquelia	Mexico	0.1
	09 Jun 2026 04:00	La Tuza	Mexico	0.1
	09 Jun 2026 06:00	El Naranjal	Mexico	0.1
	09 Jun 2026 05:00	Garrapateras	Mexico	0.1
	09 Jun 2026 06:00	Cabo Rojito	Mexico	0.1
	09 Jun 2026 06:00	La Mata	Mexico	0.1
	09 Jun 2026 06:00	Agua Dulce	Mexico	0.1
	09 Jun 2026 04:00	Ocos	Guatemala	0.1
	09 Jun 2026 04:00	El Chico	Guatemala	0.1
	09 Jun 2026 08:00	San Jose de los Leones	Mexico	0.1
	09 Jun 2026 13:00	Calderas	Mexico	0.1
	09 Jun 2026 04:00	Barra de Santiago	El Salvador	0.1
	09 Jun 2026 04:00	Acapan	Guatemala	0.1
	09 Jun 2026 04:00	Buenos Aires	El Salvador	0.1
	09 Jun 2026 04:00	Metalio	El Salvador	0.1
	09 Jun 2026 03:00	El Tular	Mexico	0.1

Disclaimer - Copyright
While we try everything to ensure accuracy, this information is purely indicative and should not be used for any decision making without alternate sources of information.
The JRC is not responsible for any damage or loss resulting from the use of the information presented on this website.
The designations employed and the presentation of material on the map do not imply the expression of any opinion whatsoever on the part of the European Union concerning the legal status of any country, territory or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.