Tropical Cyclone Technical Bulletin: AUSTRALIA - Queensland Issued by Australian Government Bureau of Meteorology TROPICAL CYCLONE WARNING CENTRE at: 0656 UTC 04/04/2026 Name: Tropical Low Identifier: 37U Data At: 0600 UTC Latitude: 9.1S Longitude: 155.1E Location Accuracy: within 20nm (35 km) Movement Towards: west northwest (284 deg) Speed of Movement: 4 knots (8 km/h) Maximum 10-Minute Wind: 40 knots (75 km/h) Maximum 3-Second Wind Gust: 55 knots (100 km/h) Central Pressure: 991 hPa Radius of 34-knot winds NE quadrant: Radius of 34-knot winds SE quadrant: Radius of 34-knot winds SW quadrant: None 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: Dvorak Intensity Code: T2.5/2.5/D1.0/24HRS STT: S0.0/6HRS Pressure of outermost isobar: 1002 hPa Radius of outermost closed isobar: 160 nm (295 km) FORECAST DATA Date/Time : Location : Loc. Accuracy: Max Wind : Central Pressure (UTC) : degrees : nm (km): knots(km/h): hPa +06: 04/1200: 9.3S 154.9E: 045 (080): 045 (085): 987 +12: 04/1800: 9.4S 154.7E: 050 (095): 050 (095): 984 +18: 05/0000: 9.5S 154.4E: 060 (110): 055 (100): 980 +24: 05/0600: 9.7S 154.4E: 065 (115): 060 (110): 976 +36: 05/1800: 9.8S 154.5E: 070 (135): 070 (130): 967 +48: 06/0600: 10.1S 154.8E: 080 (150): 080 (150): 959 +60: 06/1800: 10.3S 155.1E: 090 (165): 080 (150): 959 +72: 07/0600: 10.3S 155.2E: 105 (195): 080 (150): 958 +96: 08/0600: 10.3S 155.3E: 150 (280): 075 (140): 963 +120: 09/0600: 11.1S 154.5E: 205 (385): 070 (130): 969 REMARKS: 37U is developing and is forecast to reach tropical cyclone intensity Saturday night while remaining slow moving. Position is based on visible satellite imagery with moderate confidence. The satellite imagery indicates 37U is still currently being affected by easterly shear, though there is some good outer spiral banding present with upper fanning cirrus evident. Intensity is assessed at 40 knots, based primarily on a partial ASCAT pass at 2306 UTC showing 40 knots in the northwest quadrant. Dvorak analysis gives DT = 3.0 from a shear pattern or 2.5 using a curved band, with MET = 2.5 and no PT adjustment; FT/CI is set at 2.5/2.5. Some objective guidance has commenced (0530UC) ADT 39 kts, AiDT 34 kts, DPRINT 41 kts, DMINT (0308UTC) 28 kts, MW Sounders (0307UTC 51 kts. Environmental conditions are favourable for further intensification, despite current easterly shear of around 15 to 20 knots. This shear is expected to weaken as the upper trough to the southeast moves away, while warm SSTs near 30 C, ample moisture and good upper outflow support ongoing development. 37U is forecast to become a tropical cyclone during Saturday and may reach severe tropical cyclone intensity by late Sunday or early Monday. Beyond that time, model guidance suggests continued intensification into the middle of next week, followed by possible weakening. The extent of any later weakening will depend partly on track and proximity to land. The current steering pattern is weak with a ridge to the south balanced by the northwesterlies to the north of the system, as a result 37U is likely to remain slow moving, looping around the Solomon Sea. Next week a mid-level ridge to the east will strengthen, and is expected to direct 37U towards the southwest, but confidence in the longer term steering is low. Copyright Commonwealth of Australia == The next bulletin for this system will be issued by: 04/1330 UTC.