Tropical Cyclone Technical Bulletin: AUSTRALIA - Western Australia Issued by Australian Government Bureau of Meteorology TROPICAL CYCLONE WARNING CENTRE at: 0121 UTC 25/03/2026 Name: Tropical Cyclone Narelle Identifier: 34U Data At: 0000 UTC Latitude: 17.2S Longitude: 120.4E Location Accuracy: within 20nm (35 km) Movement Towards: west southwest (249 deg) Speed of Movement: 12 knots (23 km/h) Maximum 10-Minute Wind: 45 knots (85 km/h) Maximum 3-Second Wind Gust: 65 knots (120 km/h) Central Pressure: 985 hPa Radius of 34-knot winds NE quadrant: 100 nm (185 km) Radius of 34-knot winds SE quadrant: 80 nm (150 km) Radius of 34-knot winds SW quadrant: 80 nm (165 km) Radius of 34-knot winds NW quadrant: 90 nm (165 km) Radius of 48-knot winds NE quadrant: Radius of 48-knot winds SE quadrant: Radius of 48-knot winds SW quadrant: Radius of 48-knot winds NW quadrant: Radius of 64-knot winds: Radius of Maximum Winds: 25 nm (45 km) Dvorak Intensity Code: T3.0/3.0/D1.0/24HRS STT:D0.5/06HRS Pressure of outermost isobar: 1000 hPa Radius of outermost closed isobar: 180 nm (335 km) FORECAST DATA Date/Time : Location : Loc. Accuracy: Max Wind : Central Pressure (UTC) : degrees : nm (km): knots(km/h): hPa +06: 25/0600: 17.6S 119.2E: 030 (060): 050 (095): 984 +12: 25/1200: 18.0S 118.1E: 040 (080): 055 (100): 981 +18: 25/1800: 18.4S 117.1E: 045 (080): 065 (120): 970 +24: 26/0000: 18.8S 115.9E: 040 (075): 075 (140): 961 +36: 26/1200: 20.0S 114.2E: 035 (065): 090 (165): 947 +48: 27/0000: 21.7S 113.0E: 050 (095): 095 (175): 942 +60: 27/1200: 24.4S 113.2E: 075 (135): 080 (150): 956 +72: 28/0000: 28.1S 114.9E: 105 (195): 050 (095): 981 +96: 29/0000: 35.8S 121.3E: 165 (300): 030 (055): 990 +120: 30/0000: None None: None (None): None (None): None REMARKS: Tropical Cyclone Narelle is now a Category 1 system and is expected to continue to intensify north of the Pilbara coast. Narelle's location was estimated using Broome radar, visible satellite imagery and recent microwave pass with good confidence. Recent imagery is showing a marked increase in spiral banding. Intensity analysed at 45 knots 10-min. Dvorak analysis: DT=3.0 using a curved band pattern with wrap of 0.5-0.6. Trend is D, MET/PAT=3.0 FT/CI=3.0. Recent objective guidance: (1-min means 0000UTC): ADT 61 kn, AiDT 51 kn, DPRINT 48 kn, DMINT (2236UTC) 55 kn, SATCON 60 kn. A recent SAR pass at 2140 UTC indicated large area of 30-40 knot winds in all quadrants. Intensity is consistent with most objective guidance. Environmental conditions are generally favourable for development. SSTs around 29 30 C persist along Narelle s track off the Pilbara coast but reduce as Narelle turns and tracks south past Exmouth, dropping below 26 C roughly south of Shark Bay. There is strong equatorward outflow, upper divergence and deep moisture and conditions are expected to remain favourable for at least the next 48 hours. Intensification is expected to continue during Wednesday and Thursday with a period of rapid intensification likely. Peak intensity of category 4 is forecast, but a peak intensity of Category 5 is possible. Narelle is being steered to the west southwest by the mid level ridge located over central Australia. By late Thursday a mid level trough in the Indian Ocean becomes the more influential factor and Narelle is expected to be steered south down the west coast during Friday and then south southeast across the South West Land Division during Saturday. The system is likely to impact the west coast as a severe tropical cyclone and then weaken as it moves southeast across the southwest of WA. It is likely to undergo transition to a mid latitude cold cored system by Sunday as it moves into the Southern Ocean. There is high confidence in this track but timing (speed along the track) remains uncertain. Copyright Commonwealth of Australia == The next bulletin for this system will be issued by: 25/0730 UTC.