Australian Government Bureau of Meteorology
Tropical Cyclone Advice
Tropical Cyclone Warning Centre
Transmitters serving the Onslow, Exmouth, Ningaloo, and Coral Bay areas are requested to USE the Standard Emergency Warning Signal before broadcasting the following warning
TOP PRIORITY FOR IMMEDIATE BROADCAST
TROPICAL CYCLONE ADVICE NUMBER 39
Issued at 05:58 PM WST on Sunday 08 February 2026
Headline:
Tropical Cyclone Mitchell (21U), category 2, impacting the Onslow and Exmouth regions as it moves towards the North West Cape this evening then down the Ningaloo coast.
Areas Affected:
Warning zone: Onslow to south of Carnarvon, including Exmouth, and extending inland through the western Pilbara and northwest Gascoyne.
Watch zone: South of Carnarvon to Overlander Roadhouse, including Denham, and extending to inland parts of the western Gascoyne, including Gascoyne Junction.
Cancelled zone: Barrow Island.
Details of Tropical Cyclone Mitchell 21U at 6:00 pm AWST:
Intensity: Category 2, sustained winds near the centre of 110 kilometres per hour with wind gusts to 155 kilometres per hour.
Location: within 30 kilometres of 21.4 degrees South 114.1 degrees East, estimated to be 110 kilometres west northwest of Onslow and 60 kilometres north of Exmouth.
Movement: west southwest at 18 kilometres per hour.
Tropical Cyclone Mitchell (21U), category 2 intensity, is expected to maintain its strength as it moves southwest towards the North West Cape this evening. Mitchell will then move south near the Ningaloo and Carnarvon coasts on Monday.
Hazards:
DESTRUCTIVE WIND GUSTS to 155 km/h are occurring over coastal areas west of Onslow, and are expected to develop over the North West Cape (including Exmouth) this afternoon and evening. Destructive wind gusts may extend further down the coast to Coral Bay on Monday morning.
GALES with DAMAGING WIND GUSTS to 120 km/h are occurring along coastal areas from west of Mardie to Exmouth. GALES with DAMAGING WIND GUSTS to 120 km/h are forecast to extend further south to Coral Bay and inland parts of the western Pilbara and far northern Gascoyne later this evening or overnight. During Monday, GALES should extend further south through the western Gascoyne, possibly developing over Carnarvon, Denham and Gascoyne Junction during Monday afternoon and evening.
Widespread moderate to HEAVY RAINFALL which may lead to FLASH FLOODING is likely over the west Pilbara coast, extending to the west Gascoyne region on Monday. Local areas of INTENSE rainfall leading to SEVERE FLASH FLOODING may occur around the west Pilbara coast around Exmouth and Ningaloo, including the North West Cape, during this afternoon and overnight into Monday morning.
ABNORMALLY HIGH TIDES are expected along the west Pilbara coast, including Onslow and Exmouth. Tides are likely to rise above the normal high tide mark this afternoon and again on Monday morning's high tide, causing FLOODING of low-lying coastal areas. ABNORMALLY HIGH TIDES are expected along the Gascoyne coast, including Carnarvon, with Monday afternoon's high tide.
Recommended Action:
Ensure you know what to do in a cyclone. For the latest DFES community alerts and warnings visit www.emergency.wa.gov.au or download the Emergency WA app.
Cyclone advices and DFES Alerts are available by dialling 13 DFES (13 3337)
A map showing the track of the cyclone is available at:
http://www.bom.gov.au/cyclone
Forecast
Antonymyre (20.6632°S, 117.0934°E, 11m AMSL) set as my default location ›
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Seven day forecast
Today: Partly cloudy. Very high chance of rain in the far W, medium chance elsewhere. The chance of a thunderstorm, possibly severe with heavy rain which may lead to flash flooding in the SW. Winds N/NE 30 to 45 km/h tending N/NW 25 to 35 km/h in the late morning and early afternoon. Overnight temperatures falling to the low to mid 20s with daytime temperatures reaching 32 to 37. Destructive wind gusts exceeding 130 km/h expected due to Tropical Cyclone Mitchell.
Forecast for Antonymyre (20.6632°S, 117.0934°E, 11m AMSL) Mon Tue Wed Thu Fri Sat Sun Summary
Minimum 27° 27° 26° 26° 26° 26° 26° Maximum 34° 35° 36° 35° 35° 35° 35° Chance of rain 50% 50% 5% 5% 30% 30% 40% Likely amount < 1mm < 1mm < 1mm < 1mm < 1mm < 1mm < 1mm UV index Extreme Extreme Extreme Extreme Extreme Extreme Extreme Fire Danger Rating High Moderate Moderate Moderate - - - Frost risk Nil Nil Nil Nil Nil Nil Nil 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm Wind speed 22
(km/h)27
(km/h)15
(km/h)28
(km/h)15
(km/h)28
(km/h)18
(km/h)27
(km/h)18
(km/h)28
(km/h)15
(km/h)24
(km/h)13
(km/h)23
(km/h)Wind direction NNE N W WNW WSW WNW WSW NNW ENE N ESE N SW NNW Relative humidity 75% 68% 74% 63% 69% 51% 62% 52% 67% 57% 64% 52% 66% 54% Dew point 26°C 27°C 26°C 26°C 25°C 24°C 23°C 23°C 24°C 24°C 24°C 23°C 24°C 24°C -
Warnings
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Sunrise and sunset times
Sunrise / Sunset for Antonymyre (20.6632°S, 117.0934°E, 11m AMSL) First light Sunrise Sunset Last light Moon rise Moon set Moon phase Last quarter New moon First quarter Full moon 5:36am WST 5:59am WST 6:52pm WST 7:15pm WST 11:29pm WST 12:18pm WST
3rd quarter
Last quarter Feb 09 New moon Feb 17 First quarter Feb 24 Full moon Mar 03 -
Temperature for next 5 days
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Rain for next 5 days