Cyclone formation alert

Track map of tropical low 18U on the Kimberly coast. From www.bom.gov.au.

Severe tropical cyclone Zelia has developed to a category 5 system northwest of Port Hedland.

STORM NEWS

Tropical cyclone Zelia has developed to a category 5 severe tropical cyclone northwest of Port Hedland and forecast to make landfall Friday evening. Tropical cyclone Tahlia continues to move west in the Indian Ocean.

Tropical Cyclone Categories

Cat 1 : Tropical Cyclone 90 to 125 km/hr gales

Cat 2 : Tropical Cyclone 125-164 km/hr destructive winds

Cat 3 : Severe Tropical Cyclone 165 - 224 km/hr very destructive winds

Cat 4 : Severe Tropical Cyclone 225 - 279 km/hr very destructive winds

Cat 5 : Severe Tropical Cyclone More than 280 km/hr extremely destructive winds