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Cayman Islands Government

09/26/2022 | Press release | Distributed by Public on 09/25/2022 21:32

CINWS Update 25 Sept 10pm

Issued: Sunday 25th September - 10PM

As of 10PM, Tropical Storm Ian was located at 17.3N and 81.4W of about 137 miles S of Grand Cayman with maximum sustained winds of 65 mph. Tropical Storm Ian is moving towards the NW at 13 mph with minimum central pressure of 989mb / 29.21 inches.

BASED ON LATEST FORECAST TRACK

  • The onset of Tropical Storm Force Winds for Grand Cayman is: Mon Sep-26, 4:00 AM
  • The closest point of approach: Center is 73 miles SW of Grand Cayman: Mon Sep-26, 7:00 AM
  • End of Tropical Storm force winds for Grand Cayman is: Mon Sep-26, 3:00 PM

IF THE STORM CONTINUES ON ITS LATEST FORECAST TRACK

Expected weather conditions for the Cayman Islands:

Grand Cayman:

Overcast skies with widespread thunderstorms are expected from Sunday evening with tropical storm conditions by early Monday morning as the system nears the Cayman Islands. Extremely rough seas accompanied by storm surge are also expected. Swells generated by Ian will spread into the Cayman area later today.

Sister Islands:

Overcast skies along with widespread thunderstorms are expected from Sunday evening as Tropical Storm Ian moves closer to the Cayman Islands. Extremely rough seas along with swells and storm surges are also expected. Given the adjustments to forecast track the possibility for storm force winds are lower for the Sister Islands.

WARNINGS

A FLOOD WARNING WILL BE IN EFFECT FOR THE CAYMAN ISLANDS

Estimated Rainfall Amount per Day

  • Sunday Sep. 25: 25.4 to 50.8 mm (1 - 2 inches)

  • Monday Sep. 26: 50.8 to 101.6 mm (2 - 4 inches)

  • Tuesday Sep. 27: 25.4 to 50.8 mm (1 - 2 inches)

GUSTY WINDS ARE EXPECTED FOR THE CAYMAN ISLANDS

Estimated Wind direction and Speeds - (Beginning Sunday night)

Grand Cayman

  • Sunday Night: SE at 20 to 30 mph

  • Monday Morning: SE at 40 to 50 mph with higher gusts

  • Monday Afternoon: S at 30 to 40 mph

  • Monday Evening: S at 20 to 30 mph

Sister Islands

  • Sunday: ESE at 15 to 20 mph with higher gusts

  • Monday: SE at 25 to 30 mph with higher gusts

A MARINE WARNING WILL BE IN EFFECT FOR THE CAYMAN ISLANDS. ALL MARINE CRAFT SHOULD SEEK AND REMAINS IN SAFE HABOUR.

Estimated Wave Heights

  • Sunday Sep. 25: 6 to 8 feet especially along the south coast.

  • Monday Sep. 26: 11 to 14 feet especially along the south and west coast.

  • Tuesday Sep. 27: 6 to 8 feet especially along the south and west coast.

  • Swells of 5 to 7 feet are likely along with 2 to 4 feet of storm surge.

THE NEXT BULLETIN WILL BE ISSUED AT 4:00 AM MONDAY 26-SEP-2022.