Remnants of Tropical Cyclone Trevor have been pulled this way by a trough, and it is pretty humid now.

Water vapour imagery from the Himiwari 8 met satellite show less water in the low pressure system, and the trough is eating it.

It is possible the trough could bring the disturbence that is Ex-TC Trevor over the Coral Sea to redevelop back into a TC but I don't think It'll get retaining its identity (weakening to a point it is barely noticable)

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I have some of the remnants of 🌀 Tropical Cyclone Trevor overhead right now, a Low pressure trough which was generated by a cold front down south has swept through Australia and is starting to pull Ex-TC Trevor East creating a band of Nimbostratus and probably a few thunderstorms scattered.

Himiwari 8 Image source : http://satview.bom.gov.au/

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Himiwari 8 Visible+IR view of Australia, Ex-Tropical Cyclone Trevor is the swirl of cloud near the center of the Northern Territory, the waves of cloud into Queensland are the outer bands of Ex-Tropical Cyclone Trevor that became removed during landfall yesterday and are stimulating some thunderstorms.

🌀 Severe Tropical Cyclone Veronica made landfall today over in Western Australia as a Category 3 storm on both the Aus Scale, and Saffir-Simpson Hurricane Scale.

Also within range of this image there seems to be an active point of convection in the South Pacific Convergence Zone (an extention of the InterTropical Convergence Zone aka The Monsoon or ITCZ) which might become the focus of a new Tropical Depression in the coming days or weeks.

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The sheded outer rainbands of Ex-Tropical Cyclone Trevor are just about reaching be here now they are stimulating thunderstorm development especially with warm humid air coming off the Coral sea due to a high pressure system.

The central low the remnants of Trevor should start taking a more Eastward track soon which should bring it my way depending on how deep the low is still there might be some non-Tropical Cyclogenic deepening that might occur, plus with being closer to the Coral sea the rains it lost out west (over the incredibly arid center of Australia) might replenish.

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The current synoptic chart for Australia with IR satellite imagery background.

the blue doted lines indicate low presure trough, and blue doted line with different sized dots is a monsoon trough.

Landfelled 🌀 Severe Tropical Cyclone Trevor seen near the Gulf of Carpenteria & 🌀 Severe Tropical Cyclone Veronica Northern Western Australia expected to make landfall tomorrow.

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🌀 Severe Tropical Cyclone Trevor made its second landfall at ~1124 UTC+10 (AEST) as a Category 4 Severe Tropical Cyclone on the Australian Tropical Cyclone Scale and a Category 3 Major Hurricane on the Saffir-Simpson Hurricane Wind scale.

It made landfall ~100km west of the Northern Territory-Queensland border.

🌀 Severe Tropical Cyclone Veronica is actually a Category 4 Severe Tropical Cyclone on ATCS while being a Category 1 Hurricane on SSHWS, this major divide is due to difference on what qualifies as sustained wind between the two scales with ATCS using 10 min average, where SSHWS uses 1 min average. (ATCS defines it right as that is the universal standard put forward by the World Meteorological Organization's Tropical Cyclone Programm)

Veronica is expected to make landfall around 1500 UTC+10 (AEST) between Whim Creek and Port Hedland as a Category 4 Severe Tropical Cyclone ATCS.

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I think 🌀 Severe Tropical Cyclone Trevor will intensify a bit further before landfall later today, the convection has really flared up and there is a hot-tower that has formed in the northern semicircle (hot towers are incredibly tall cumulonimbus that typically only occurs in the tropics, when they occur within a Tropical Cyclone it can indicate future rapid inhensification)

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I noticed that on satellite imagery recently the eye has shown up but it is bloody tiny you quite literrally need a microscope just to see it on the the satellite images.

Cyclone Trevor approaching land with pinhole eye ― YouStorm https://youtu.be/K6BgJYgSMcU

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Mornington Island weather observatory is starting to wack up those mm of rains with 🌀 Severe Tropical Cyclone Trevor getting close they're getting some pretty intense rainbands from the Category 4 (Australian Tropical Cyclone Scale).

Wind hasn't changed much, it has increased but not yet to the Tropical Storm force that is expected there during the next few hours.

Landfall is expect just west of the Northern Territory-Queensland border at 1pm today.

Forecast wind radii:
35+kts (Tropical Storm) - ~150km
63+kts (Hurricane) - ~50km
96+kts (Major Hurricane) - ~25km

note: This isn't the only Tropical Cyclone affecting Australia at this point in time 🌀 Severe Tropical Cyclone Veronica will make landfall asa Category 4 near Port Hedland tomorrow.

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512 km composite Gulf of Carpentaria (Mornington Is) Radar Loop http://www.bom.gov.au/products/IDR361.loop.shtml

🌀 Severe Tropical Cyclone Trevor is within 194km of Mornington Island Radar. Winds at the station are 26kts [48km/h, 30mph] but as the Cyclone intensifies and moves closer the radar will enter the radii of Tropical Storm force though Hurricane, and Major Hurricane forced winds should be focused ~100km and 50km diameter respectivily from the Cyclones center.

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🌀 Severe Tropical Cyclone Trevor is now a Category 3/2 on the Australian Tropical Cyclone Scale/Saffir-Simpson Hurricane Wind Scale, it is expected to make a second landfall in the next 24 hours.

🌀 Severe Tropical Cyclone Veronica is currently a Category 4/4 ATCS/SSHWS but is expected to increase briefly to Category 5 (ATCS) potentially borderline Category 5 on SSHWS before weakening right before landfall near Port Hedland.

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Cyclones Trevor and Veronica, double trouble 21 Mar 2019 ― YouStorm https://youtu.be/tGjwcH1-qxU

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Both 🌀 Severe Tropical Cyclone Trevor and 🌀 Severe Tropical Cyclone Veronica have their eyes mostly covered and you need to look carefully on the visible imagery to actually see the indent of subsiding air that forms the eye.

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The Australian Defense Force has be mobilised to help evacuate remote comunities in the path of 🌀 Severe Tropical Cyclone Trevor now a Category 3 on the Australian Tropical Cyclone Scale, expected to intensify to Category 4 by its second landfall.

Cyclone Trevor reintensifying - March 22 12:39AEST ― Force Thirteen https://youtu.be/M0BWBJamgv4

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The Australia Bureau of Meteorology gif-ified the radar loop from Weipa radar showing 🌀 Tropical Cyclone Trevor (Then Severe Tropical Cyclone Trevor) making landfall as a Category 3 on both the Australian Tropical Cyclone Scale, and Saffir-Simpson Hurricane Wind Scale on the 19th.

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🌀 Severe Tropical Cyclone Veronica's Eye is poorly visible on IR imagery, it is weird that a Category 4 Tropical Cyclone would have such a filled in eye unless it is weakening.

🌀 Tropical Cyclone Trevor hasn't developed a eye again after its first landfall it stalled not to far off the coast so it has barely had its feet wet, it was forecasted to make Category 3 overnight, it is 0424 UTC+10 (AEST) and based on my Subjective Dvorak Technique Score it is still around a ~3.5T (I haven't checked CIMSS Advanced Dvorak Technique Score but it surely can't be to far off mine) which makes it a mid Category 2 Tropical Cyclone on the Australian Tropical Cyclone Scale, and borderline Category 1 on Saffir-Simpson Hurricane Wind Scale. Meaning it has barely made any progress.

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If you've been Watching 🌀 Severe Tropical Cyclone Trevor (now Tropical Cyclone Trevor) over the past few days from its landfall just south of Lockhart River, to today using Weipa Airport radar you might want to to change to using Mornington Island radar soon as 🌀 Tropical Cyclone Trevor has moved slighly south and the southern eyewall is now visible from Mornington Island radar.

It is now a Category 2 Tropical Cyclone ATCS, and Category 1 SSHWS, it is expected to intensify overnight to a Category 3 Severe Tropical Cyclone ATCS or Category 2 to 3 SSHWS now that it has emerged over the Gulf of Carpenteria.

Gulf SSTs are between 30 and 32ºC, Vertical Windshear is between 5 and 10kts (ideal for intensification), the relative humidity in the mid layer is >80% though there is dry <40% to the west of the system however I think the liklihood of that being ingested and killing off intensification is unlikely as a lot of mid layer humid air is being pulled out from over the Coral Sea into the gulf.

Sources for graphics:

Australian Bureau or Meteorology ― http://www.bom.gov.au/cyclone

GFS Animation - Tropical Tidbits - Hurricanes ― https://www.tropicaltidbits.com/analysis/models/

Abreviations:

ATCS ― Australian Tropical Cyclone Scale.

GFS ― Global Forecast System.

SSHWS ― Saffir-Simpson Hurricane Wind Scale.

SST ― Sea Surface Temperatures.

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🌀 Severe Tropical Cyclone Veronica is now a Category 4 Severe Tropical Cyclone on the Australian Tropical Cyclone Scale (ATCS), or Category 4 Major Hurricane on the Saffir-Simpson Hurricane Wind Scale (SSHWS).

🌀 Tropical Cyclone Trevor is now Category 2 Tropical Cyclone ATCS or Tropical Storm SSHWS.

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WEATHER UPDATE: tropical cyclone Trevor rapidly intensifying, 21 March 2019 ― Australian Bureau of Meteorology https://youtu.be/x1-UE8Ef5bE

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🌀 Tropical Cyclone Trevor is probably only half an hour away from moving over the Gulf of Carpenteria.

It should reintensify back out there, currently it is a Category 1 Tropical Cyclone (ATCS) or Tropical Storm (SSHWS), so it has survived keeping its Tropical Cyclone status across tde entire Cape (though to be fair it did make landfall as Category 3 on both ATCS, and SSHWS, and the land there is only about 100km)

Right now going by the center of circulation from Weipa radar it is over Thud Point.

Abreviations:

ATCS ― Australian Tropical Cyclone Scale.

SSHWS ― Saffir-Simpson Hurricane Wind Scale.

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