SOUTHERN HEMISPHERE
TROPICAL CYCLONE
YASI
TRACK FORECAST GRAPHICS AND SATELLITE
IMAGES COURTESY OF NRL/MONTEREY. TRACK
FORECASTS COURTESY OF JTWC.
ACTIVITY SUMMARY SINCE 01 July 2012

NUMBER OF WARNED CYCLONES IN JANUARY: 7
AVERAGE NUMBER OF CYCLONES IN JANUARY: 5.7
TOTAL NUMBER OF WARNED CYCLONES SINCE 01 JULY 2012: 13
AVERAGE NUMBER OF CYCLONES SINCE 01 JULY: 12.1

ACTIVITY SUMMARY FOR JANUARY 2013: There were 7 Tropical Cyclones in the Southern Hemisphere in
January which is above the normal of 5.7. Developing though late monsoon activtiy and the MJO combined for
an active month.

Tropical Cyclone TC07S (Dumile) was in progress at the beginning of the month having just developed. Peaking
at 70kt on the 3rd the storm passed close enough to La Reunion for outer bands to bring gusty winds and rains.
The storm proceeded south and became extratropical on the 5th.

Tropical Cyclone TC 08S (Narelle) formed near 11.8S 119.9E on the 7th. The storm curved arounf the NW and
W coast of Australia offshore enough to have minimal effect peaking at 115kt on the 11th and becoming
extratropical on the 14th.

Tropical Cyclone TC 09S (Emange) A sheared system, it formed near 11.8S 80.5E on the 12th moving slowly
with 35 kt winds and dissipating on the 17th due to shear.

Tropical Cyclone TC 10P (Garry) formed near 12.8S 176.8W on the 20th north of Samoa and tracked E-SE
over open water peaking at 85 kt on the 25th becoming extratropical on the 27th.

Tropical Cyclone TC 11P (Oswald) formed in the Gulf of Carpentaria on the 21st and made landfall 12 hours
later on the Cape York Peninsula with 35kt winds. The remnant low resulted in heavy rains, sebere
thunderstorms and tornadoes with flooding in Queensland.

Tropical Cyclone TC 12S (Peta) formed near 19.7S 117.8E just off the NW coast of Australia on the 22nd
making landfall 12 hours later with 35 kt winds dissipating on the 23rd. This was small storm and effects were
minimal.

Tropical Cyclone TC13S (Felleng) formed near 12.9S 65.5E on the 26th recurving east of Madagascar peaking
at 115kt on the 30th. the storm weakened due to shear and land interaction with fringe winds along the coast.
The storm became extratropical on the 3rd.