Overall Red alert Tropical Cyclone for NORMA-23
in Mexico

Event summary

Tropical Cyclone NORMA-23 can have a high humanitarian impact based on the maximum sustained wind speed, exposed population and vulnerability.

GDACS ID TC 1001024
Name NORMA-23
Glide number: TC-2023-000206-MEX
From - To 17 Oct - 23 Oct
Exposed countries Mexico
Exposed population 430 thousand in Category 1 or higher
Maximum wind speed 213 km/h Category 4
Maximum storm surge 0.5 m (21 Oct 19:00 UTC)
Vulnerability Medium (Mexico)


For more info on GDACS alert score click here.
Wind Storm surge Rainfall GDACS score
GDACS NOAA 56 km/h 0.4 m n.a. 0.5
Single TC: maximum expected impact (wind, storm surge, rainfall)
HWRF 216 km/h 0.6 m 1024 mm 0.5
GFS 191 km/h 0.5 m 812 mm 0.5
ECMWF 90 km/h 0.5 m 848 mm 0.5
Maximum expected impact (wind, storm surge and rainfall) using different data sources.
Virtual OSOCC
Meteo assessment
Satellite products
Analytical products
Mexico - Severe weather and floods (ECHO 18 Oct 2023)Wed, 18 Oct 2023 10:20

  • Over the past few days, heavy rainfall and strong winds have affected parts of Veracruz State in eastern Mexico, causing floods and severe weather-related incidents, triggering landslides and resulting in casualties and damage.
  • According to local authorities, one person died in Coatzacoalcos City in a severe weather-related incident due to strong winds. More than 700 houses have been hit by floods and nine municipalities have been affected by severe weather events.
  • Moreover, a new tropical cyclone, named NORMA, could approach the western coastal areas of Mexico, particularly the Baja California Sur, on 22-23 October, and it could bring heavy rainfall and strong winds over the area.
  • For the next 24 hours, moderate rain is expected over the affected state while heavy rainfall is forecast over Jalisco, Colima, Michoacán and Guerrero.
Mexico - Tropical cyclone NORMA (ECHO 19 Oct 2023)Thu, 19 Oct 2023 09:44

  • A new tropical cyclone named NORMA formed over the eastern North Pacific Ocean on 17 October and started moving toward central-western Mexico as a tropical storm, streghtening. On 19 October at 3.00 UTC, its centre was located over the Ocean approximately 740 km south of Cabo San Lucas City, the southernmost tip of the California Peninsula, Baja California Sur State, with maximum sustained winds of 150 km/h (Cat. 1 Hurricane.
  • NORMA is forecast to continue northward ant to make landfall in the southernmost area of Baja California Sur State in the evening (UTC) of 21 October, with maximum sustained winds up to 120-130 km/h (Cat. 1 Hurricane).
  • On 20-22 October, very heavy rainfall, strong winds and storm surge are forecast over the southern California Peninsula and the coastal area of western Mexico, in particular northern Nayarit and Sinaloa States.
NORMA-23 - EC/ECHO daily mapFri, 20 Oct 2023 17:28

A new EC/ECHO daily map is now available
Mexico - Tropical cyclone NORMA, update (ECHO 23 Oct 2023)Mon, 23 Oct 2023 10:44

  • On 21-22 October, tropical cyclone NORMA made landfall over the area of Cabo San Lucas City, on the southernmost tip of the California Peninsula, Baja California Sur State as a Cat. 1 Hurricane and continued toward northern Sinaloa State, as a tropical storm. On 23 October at 6.00 UTC, its centre was located over the Gulf of California approximately 80 km west of the Altata Town, central-northern Sinaloa State with maximum sustained winds of 75 km/h (tropical storm).
  • Media reports, as of 23 October, around 200 evacuated people in a number of shelters across the area of Cabo San Lucas City and La Paz Town.
  • NORMA is forecast to make a second landfall over the coastal area of central-northern Sinaloa State in the late morning (UTC) of 23 October, with maximum sustained winds up to 75 km/h.
  • Over the next 24 hours, very heavy rainfall, strong winds and storm surge are forecast over most of Sinaloa State. A tropical storm warning is still in force over most of the coast of the aformentioned state. 
Detailed event map. European Union, 2024. Map produced by EC-JRC.
The boundaries and the names shown on this map do not imply official endorsement or acceptance by the European Union.

Updates on volcanic activity (Smithsonian)

Latest media headlines

Articles: 872 | About casualties: 12 | Last hour: 1

27.10.2023 Mexico - Produce industry watchful of rains post Hurricane ... 2023-10-27T13:06+0200.

Early reports indicate that the impact of Hurricane Otis, a Category 5 hurricane that landed near Acapulco early Wednesday morning, is minimal on produce. “Yesterday, I would have told you we were expecting to lose 1 to 1 ½ days of h
27.10.23 Mexique: Acapulco dévastée par l'ouragan meurtrier Otis2023-10-27T11:17+0200.

"Malheureusement, nous avons reçu un rapport du gouvernement de l'Etat et de la municipalité faisant état de 27 morts et de quatre disparus", a déclaré la secrétaire à la Sécurité Rosa Icela Rodriguez lors de la conférence de presse quotidi
Tempête Philippe : les réflexes à adopter si vous êtes de passage (ou ... 2023-10-27T10:05+0200.

Acapulco partiellement dévastée après le passage de l’ouragan de catégorie 5, Otis. La célèbre station balnéaire au Mexique a subi des pertes humaines et dégâts matériels importants, alors que le territoire a subi des rafales de vent allant
La station balnéaire défigurée2023-10-27T08:05+0200.

Au moins 27 personnes ont été tuées par le puissant ouragan Otis qui a dévasté et isolé la célèbre station balnéaire d'Acapulco, dans le sud-ouest du Mexique, où les secours s'organisent jeudi. "Malheureusement, nous avons reçu un rapport d

Estimated casualties (PAGER)

USGS estimates the number of casualties for each earthquake for the Prompt Assessment of Global Earthquakes for Response (PAGER) product.
The graph shows the current fatalities estimate.

Exposed population

Data, images, links, services and documents

For this events, GDACS has links to information from the following sources: EC-JRC (40), (2), DesInventar (1), WMO (1), INFORM (2),