WWSO21 ABRF 190638
IDQ20015
Australian Bureau of Meteorology
Tropical Cyclone Warning Centre

SATELLITE ANALYSIS BULLETIN
Issued at 0638 UTC on 19 OCTOBER 2026
Tropical Cyclone Wati 01F

190600 UTC

Located near 20.6S 157.8W

Analysis based on: EIR and earlier vis/microwave imagery

Latitude Detection Sum: 8

Longitude Detection Sum: 21

Dvorak analysis: T2.5/3.0/W1.0/24HRS STT:W0.5/6HRS

Wati is weakening under strong northwesterly wind shear and cool SST (24C).
Location unclear based on EIR and extrapolation from earlier AMSR3 microwave at
2344UTC. Some model positioning considered. No other recent microwave or
scatterometry to assist. Centre northwest of deep convection in line with shear
environment.  

Dvorak based upon shear pattern within ~0.5. DT in the range of 2.5-3.0.
Weakening 24h trend, MET=2.0 but PAT adjustment to 2.5. FT=2.5 and CI held
higher at 3.0. 

Intensity estimated at 45kn.

Gales asymmetric estimated NE/SE/SW/NW at 100/90/60/50 nm, inferred from model
and earlier scat, albeit limited. 

No further bulletins will be issued for this system as it is not likely to have
tropical characteristics within 24h.