Tropical Cyclone Technical Bulletin: AUSTRALIA - Western Australia Issued by Australian Government Bureau of Meteorology TROPICAL CYCLONE WARNING CENTRE at: 0622 UTC 27/03/2026 Name: Severe Tropical Cyclone Narelle Identifier: 34U Data At: 0600 UTC Latitude: 23.6S Longitude: 113.8E Location Accuracy: within 15nm (30 km) Movement Towards: south (173 deg) Speed of Movement: 13 knots (23 km/h) Maximum 10-Minute Wind: 80 knots (150 km/h) Maximum 3-Second Wind Gust: 110 knots (205 km/h) Central Pressure: 956 hPa Radius of 34-knot winds NE quadrant: 130 nm (240 km) Radius of 34-knot winds SE quadrant: 120 nm (220 km) Radius of 34-knot winds SW quadrant: 120 nm (150 km) Radius of 34-knot winds NW quadrant: 80 nm (150 km) Radius of 48-knot winds NE quadrant: 80 nm (150 km) Radius of 48-knot winds SE quadrant: 90 nm (165 km) Radius of 48-knot winds SW quadrant: 60 nm (110 km) Radius of 48-knot winds NW quadrant: 60 nm (110 km) Radius of 64-knot winds: 40 nm (40 km) Radius of Maximum Winds: 20 nm (35 km) Dvorak Intensity Code: T4.5/5.0/W0.5/24HRS STT:W0.5/06HRS Pressure of outermost isobar: 999 hPa Radius of outermost closed isobar: 100 nm (185 km) FORECAST DATA Date/Time : Location : Loc. Accuracy: Max Wind : Central Pressure (UTC) : degrees : nm (km): knots(km/h): hPa +06: 27/1200: 25.7S 114.3E: 025 (050): 060 (110): 973 +12: 27/1800: 27.6S 115.1E: 035 (070): 050 (095): 980 +18: 28/0000: 29.8S 116.5E: 045 (085): 040 (075): 986 +24: 28/0600: 32.0S 118.3E: 050 (095): 035 (065): 989 +36: 28/1800: None None: None (None): None (None): None +48: 29/0600: None None: None (None): None (None): None +60: 29/1800: None None: None (None): None (None): None +72: 30/0600: None None: None (None): None (None): None +96: 31/0600: None None: None (None): None (None): None +120: 01/0600: None None: None (None): None (None): None REMARKS: Severe Tropical Cyclone Narelle crossed the coast at about 0130 UTC just south of Coral Bay. Location was determined from animated satellite imagery and Carnarvon radar with good confidence. Learmonth radar is not available. Satellite imagery is showing a slowly filling in eye with a warming and shrinking surrounding ring. Microwave imagery indicated an eye replacement cycle occurred last night, which resulted in a decrease in the eye size. Dvorak analysis: Over land and not applicable. However, since Narelle has just crossed the coast it is DT 4.5, with an eye pattern with LG surrounding temperature, OW/LG eye and no minimum width ring temperature, and a 0.5 adjustment for an elongated eye. MET is 3.5 with a W+ trend, PAT of 4.0. FT/CI of 4.5/5.0. Recent objective guidance at 0520 UTC: (1-min means): DPRINT 94 kn. Thevenard Island observed gusts to 88 kn around 1740UTC, with a mean 10 min mean up around 64kn at 1700 UTC. Learmonth observed a 108 gust at 22:31 UTC. Intensity has been set at 80 knots (10-min), which is in line with subjective Dvorak and within objective estimate error bounds. SSTs are now irrelevant with the track being entirely over land. Mid-level and upper level shear are on the increasing trend, with upper shear being analysed as WSW 15 to 20 knots. Narelle's recent weakening is mostly due to interactions with the land. As Narelle moves south over land wind shear is forecast to increase further. Narelle is being steered by a mid-level ridge to the east. The ridge erodes due to an approaching upper trough, with Narelle expected to move to the south southeast and then accelerate as the trough gets closer later today and during Saturday. This faster speed of motion is expected to enhance the winds to the northeast of the system as it tracks over land, with winds to the northeast of the system being stronger than the standard inland decay rate. Copyright Commonwealth of Australia == There will be no further bulletins for this system unless it moves back over open water and reintensifies.