James Holbeach🌀

last 6 hours of radar and satellite. #CycloneMitchell

Eastward upper outflow For STC #Mitchell looks restricted on the IR satellite loop which is likely hampering development with increasing shear also evident.

I think it has peaked and is unlikely to further intensify.

Winds picking back up on Barrow island with the backside of Severe Tropical #CycloneMitchell

Radar indicates some recent Southerly movement which may put Onslow in the firing line of the Eastern eyewall.

The last hour or so of Severe Tropical Cyclone #Mitchell viah Himawari-9 at high temporal resolution (2.5min). This is from the red, 640nm band imager.

Microwave image in red and green showing eye of cyclone Mitchell nust NE of Barrow island

Microwave image in red and green showing eye of cyclone Mitchell nust NE of Barrow island

Most recent MW images (05:25 AWST) show strongest convection is likely to be on backside of #Cyclone #Mitchell

Obs beginning to peak at Barrow Island for Severe Tropical #CycloneMitchell Pressure down to 980 hPa.

Admittedly this is resonably old (5:40am AWST 7th Feb) but it is the latest MW image with decent coverage, and it looks more impressive than I thought with really strong convection in the NE quad #CycloneMitchell.

It has definitely improved since then so Im looking forward to another good sat pass.

Large eye feature on the radar loop from Tropical Cyclone Mitchell, with outer bands hitting Port Hedland right now. Keep an eye on Barrow Island AWS as the centre of the system approaches. #CycloneMitchell

Most recent RGB satellite loop. Track map has a likely crossing near Onslow, a town of about 800 people but also crossing Barrow Island, where the worlds highest non tornadic wind was ever recorded.

Tropical Cyclone Mitchell (#21U / 20S) is a pretty large system and is currently at 982hPa Cat 2 (Aus scale) with sustained winds around the 50 kt (92km/h) mark.

With warm seas, low-mod shear tons of moisture and good outflow, it is expected to strengthen today to cat 3 with winds to 80 kt.

Tropical Low 21U -> Tropical cyclone. Seems likely for the Pilbra / Gascoyne regions of WA with all major models on the same page. It could be a nasty one too with some models down to 960 hPa. #21U

That flow tho.

You may have seen pictures, but have you ever seen video of a gigantic jet #TLE from space?

Astronaut Jeanette Epps captured this incredible sequence on July 20th, 2024 for the DTU/@science.esa.int Thor-Davis experiment. 🧪🔭

youtu.be/xN2J7_rOBJY

Credit: ESA/NASA/J. Epps
Processing: Simeon Schmauß

Ex TC Luana is drenching central WA right now

Mildura is seeing some seriously dry air! 48 °C with DP of -1.5 °C! #VicWx #AusWx

Former TC #Luana is over the #Kimberley region of #WesternAustralia. Another weak low pressure system is over the Cape York Peninsula, while monitoring tropical development near #Vanuatu next week.

Looks likethe broad eye feature is about to cross the coast.

Tropical Cyclone Luana just before it crosses the coast near Cape Leveque North of Broome

#TropicalCyclone #CycloneLuana #16U #17S #WAWx

James #Webb Space Telescope #JWST

Imaging dust knots in a planetary nebula

TARG: #NGC7293 #Helix Nebula
2024-10-24
PI: Garcia Marin, Macarena
NIRCAM 444-470 444 356 212 187 115

yuval-harpaz.github.io/astro/jwst_l...

NASA/ESA/CSA/STScI/j. Roger

Is the JWST image vertically flipped in orrientation? The lighting doesnt look correct?

INVEST 91S may develop into a cyclone before crossing the coast North of Cape Leveque. SSTs are about normal for this time of year but definitely enough to support development if the low slows down. #91S #WAWx #TropicalCyclone

This mess over Bonaparte gulf could consolidate into a tropical cyclone in the next week.

Using ai models to find errors in base data sets … especially when the models have been trained in the same data sets is impressive!!

Crab #pulsar and its environment in Messier 1. #Hubble image (ACS F550M). I added more frames. Same timescale between 2012 and 2016.

This is what it would look like to fly over the Martian North Pole aboard @esa.int's Mars Express orbiter.

This sequence of 117 images was captured by the VMC camera on June 14th, 2019 over the course of 3 hours and is played a 1200x speed. #planetsci

Credit: ESA/Simeon Schmauß

flic.kr/p/2rQAPdw

Wider view

On 6th Jan Severe Tropical Cyclone Jenna peaked at category 3 (Aus scale) after skirting the Cocos Islands.

It made an impressive sight as it span away over the Indian ocean!

#WX #Cyclone #WAWx #CycloneJenna

The North Atlantic tonight going into the final day of 2025. #avgeography @flightradar24.com

According to BOM Tropical Cyclone Hayley has now peaked as a category 4 on the Aus scale with 10 minute sustained wind speeds of 165 km/h (100 mph). JTWC 1 min est. is the same. Shear has seemingly begun to increase and should induce weakening leading up to landfall tonight local time.

Recently named Cyclone #Hayley has unexpectedly intensified into a category 4. A cat 3 landfall is expected in the northern Kimberley.

The last season to see 3 severe TC's before the New Year was way back in 1998-99.

The last season to see 3 cat 4 TC's before the New Year was... never!