Cyclone Peter

Australian region cyclone in 1978–1979

Severe Tropical Cyclone Peter
Cyclone Peter near peak intensity on 31 December
Meteorological history
Formed28 December 1978
Dissipated3 January 1979
Category 3 severe tropical cyclone
10-minute sustained (BOM)
Highest winds150 km/h (90 mph)
Lowest pressure980 hPa (mbar); 28.94 inHg
Tropical storm
1-minute sustained (SSHWS/JTWC)
Highest winds110 km/h (70 mph)
Lowest pressure980 hPa (mbar); 28.94 inHg
Overall effects
Fatalities2 total
Damage$11.4 million (1978 USD)
Areas affectedNorthern Territory, Far North Queensland
IBTrACSEdit this at Wikidata

Part of the 1978–79 Australian region cyclone season

Severe Tropical Cyclone Peter was at the time, the wettest tropical cyclone on record in Australia, until it was surpassed by Cyclone Jasper in 2023. The third system and first severe tropical cyclone of the 1978–79 season, Peter developed on 29 December from a weak low pressure area over the Gulf of Carpentaria. Peter moved southeastward and deepened while brushing Arnhem Land. Initially a tropical low, it strengthened into a Category 1 cyclone by 12:00 UTC on 29 December. Peter intensified further on 30 December and became a Category 2 cyclone. On the following day, the cyclone peaked with maximum sustained winds of 110 km/h (70 mph). Peter weakened to a Category 1 cyclone before making landfall near the mouth of the Edward River in Queensland. While crossing the Cape York Peninsula, the storm weakened slowly. After reaching Pacific Ocean near Cooktown, the storm decelerated and meandered offshore, but dissipated just offshore on 4 January.

While trekking slowly offshore the east coast of Queensland, the storm dropped very heavy rainfall, peaking at 1,947 millimetres (76.7 in) at Mount Bellenden Ker, making it the wettest tropical cyclone on record in Australia at the time. Severe flooding occurred, especially in the Cairns area. The most severe damage was dealt to sugar cane, which suffered 70 to 90 percent destruction. Some flights were canceled at the Cairns Airport due to standing water. Floodwaters forced at least 50 people to flee their homes in Cairns. A number of roads, including major highways, were flooded throughout coastal areas of Far North Queensland. Rainfall and winds also resulted in many power and telephone service outages through the region. There were two fatalities and damage reached approximately $10 million (1979 AUD; $11.4 million 1979 USD).

Meteorological history

Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
  Tropical depression (≤38 mph, ≤62 km/h)
  Tropical storm (39–73 mph, 63–118 km/h)
  Category 1 (74–95 mph, 119–153 km/h)
  Category 2 (96–110 mph, 154–177 km/h)
  Category 3 (111–129 mph, 178–208 km/h)
  Category 4 (130–156 mph, 209–251 km/h)
  Category 5 (≥157 mph, ≥252 km/h)
  Unknown
Storm type
circle Tropical cyclone
square Subtropical cyclone
triangle Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression