Tropical Cyclone Technical Bulletin: AUSTRALIA - Northern Territory Issued by Australian Government Bureau of Meteorology TROPICAL CYCLONE WARNING CENTRE at: 0659 UTC 21/03/2026 Name: Severe Tropical Cyclone Narelle Identifier: 34U Data At: 0600 UTC Latitude: 13.0S Longitude: 137.8E Location Accuracy: within 20nm (35 km) Movement Towards: west (275 deg) Speed of Movement: 11 knots (21 km/h) Maximum 10-Minute Wind: 65 knots (120 km/h) Maximum 3-Second Wind Gust: 90 knots (165 km/h) Central Pressure: 978 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 (130 km) Radius of 34-knot winds NW quadrant: 70 nm (130 km) Radius of 48-knot winds NE quadrant: 40 nm (75 km) Radius of 48-knot winds SE quadrant: 40 nm (75 km) Radius of 48-knot winds SW quadrant: 30 nm (55 km) Radius of 48-knot winds NW quadrant: 30 nm (55 km) Radius of 64-knot winds: 25 nm (25 km) Radius of Maximum Winds: 25 nm (45 km) Dvorak Intensity Code: T3.5/3.5/D0.5/18HRS STT:S0.0/06HRS Pressure of outermost isobar: 1004 hPa Radius of outermost closed isobar: 200 nm (370 km) FORECAST DATA Date/Time : Location : Loc. Accuracy: Max Wind : Central Pressure (UTC) : degrees : nm (km): knots(km/h): hPa +06: 21/1200: 13.2S 137.0E: 030 (055): 070 (130): 973 +12: 21/1800: 13.4S 136.0E: 035 (065): 055 (100): 985 +18: 22/0000: 13.6S 134.8E: 035 (065): 040 (075): 994 +24: 22/0600: 13.8S 133.5E: 035 (065): 030 (055): 1000 +36: 22/1800: 14.0S 130.9E: 045 (085): 030 (055): 1000 +48: 23/0600: 14.5S 128.5E: 045 (085): 035 (065): 997 +60: 23/1800: 14.8S 125.8E: 055 (100): 030 (055): 1000 +72: 24/0600: 15.5S 123.7E: 065 (120): 030 (055): 1000 +96: 25/0600: 16.6S 119.4E: 090 (165): 050 (095): 988 +120: 26/0600: 17.6S 115.1E: 115 (210): 070 (130): 974 REMARKS: Severe Tropical Cyclone Narelle is starting to approach the eastern Northern Territory. The broad centre of Narelle is now evident on the Gove radar, and in addition to visible satellite imagery has been used to locate Narelle's centre with good confidence. The centre is broad, and this broad centre was also seen in SAR imagery from this morning at 2015 UTC 20 March. In spite of the presence of vertical wind shear (CIMSS assessed 19 kn ESE at 0000 UTC), in recent hours Narelle has shown improved curvature. Dvorak analysis: a curved bant pattern with a wrap of 0.8-1.0 yields a DT of 3.5. No MET or PT as not yet over water for long enough. FT/CI = 3.5. Objective aids at 0530 UTC (1-min means): ADT 59 kn, AiDT 65 kn, DPRINT 52 kn, DMINT (0411 UTC) 58 kn, MW sounders (0410 UTC) 74 kn, and SATCON 72 kn. Current intensity is set at 65 kn, based on objective aids, and influenced by earlier SAR at 2015 UTC and Gove Dopplar Radar (adjusted to account for scan elevation), these are both in line with a 65 kn system. Narelle has begun to impact the eastern Northern Territory coast and the environment remains generally favourable due to warm SSTs, high moisture, and moderate wind shear, until increased land interactions lead to weakening. A small amount of intensification is forecast in the next 6 hours, prior to landfall on the eastern Northern Territory coast tonight or early Sunday morning. A strong mid-level ridge extending across Australia into the Coral Sea will remain the dominant steering mechanism for Narelle well into next week. There is high confidence in a westward forecast track across northern Australia. Following landfall over the Northern Territory overnight tonight, Narelle will then move across the Top End and off the Kimberley coast next week, where redevelopment into a tropical cyclone is again likely. Copyright Commonwealth of Australia == The next bulletin for this system will be issued by: 21/1330 UTC.