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| image = Ernie 2017-04-07 0730Z.png | image = Ernie 2017-04-07 0730Z.png
| caption = Ernie rapidly intensifying to the northwest of ] on 7 April | caption = Ernie rapidly intensifying to the northwest of ] on 7 April
| formed = {{start date|2017|04|06|df=yes}} | formed = 6 April 2017
| dissipated = {{start date|2017|04|10|df=yes}} | dissipated = Currently active
| Post-tropical = 10 April
| 10-min winds = 120 | 10-min winds = 120
| 1-min winds = 130 | 1-min winds = 130
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}} }}


'''Severe Tropical Cyclone Ernie''' is currently a weakening ] located in the southeast ]. It was recently the first storm to become a Category 5 on the Australian scale since ] in January 2015, and currently the strongest storm worldwide in 2017. Developing from a tropical disturbance south of ] on 6 April, the cyclone intensified into a tropical cyclone shortly afterwards. Late that day, Ernie began a period of ], becoming a high-end Category 4-equivalent cyclone just over 24 hours after it formed. After reaching its peak intensity, the storm rapidly weakened before attaining a secondary peak as a high-end Category 2-equivalent cyclone on 8 April. '''Severe Tropical Cyclone Ernie''' was the first ] to become a Category 5 on the Australian scale since ] in January 2015, and currently the strongest storm worldwide in 2017. Developing from a tropical disturbance south of ] on 6 April, the cyclone intensified into a tropical cyclone shortly afterwards. Late that day, Ernie began a period of ], becoming a high-end Category 4-equivalent cyclone just over 24 hours after it formed. After reaching its peak intensity, the storm rapidly weakened before attaining a secondary peak as a high-end Category 2-equivalent cyclone on 8 April.


==Formation== ==Formation==

Revision as of 17:42, 10 April 2017

Severe Tropical Cyclone Ernie
Category 5 severe tropical cyclone (Aus scale)
Category 4 tropical cyclone (SSHWS)
Ernie rapidly intensifying to the northwest of Western Australia on 7 April
Formed6 April 2017
DissipatedCurrently active
(Post-tropical after 10 April)
Highest winds10-minute sustained: 220 km/h (140 mph)
1-minute sustained: 240 km/h (150 mph)
Gusts: 315 km/h (195 mph)
Lowest pressure922 hPa (mbar); 27.23 inHg
FatalitiesNone
DamageNone
Areas affectedNone
Part of the 2016–17 Australian region cyclone season

Severe Tropical Cyclone Ernie was the first tropical cyclone to become a Category 5 on the Australian scale since Cyclone Marcia in January 2015, and currently the strongest storm worldwide in 2017. Developing from a tropical disturbance south of Indonesia on 6 April, the cyclone intensified into a tropical cyclone shortly afterwards. Late that day, Ernie began a period of explosive intensification, becoming a high-end Category 4-equivalent cyclone just over 24 hours after it formed. After reaching its peak intensity, the storm rapidly weakened before attaining a secondary peak as a high-end Category 2-equivalent cyclone on 8 April.

Formation

Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
Map key 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

Rapid intensification

Demise

See also

  • Cyclone Gillian – rapidly intensified to a Category 5 on both scales in a similar area in March 2014

References

Tropical cyclones of the 2016–17 Australian region cyclone season
TL01U TL02U TL03U TL03F TL04U TL05U TL06U 1Yvette TL08U TL09U TL10U TL11U TL12U TL13U TL14U TL15U TL16U TL17U TL18U 1Alfred 2Blanche TL21U 222U 1Caleb 4Debbie TL25U 5Ernie TL27U 3Frances 1Greg