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Mon 28/09/2026 1100 AES |
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Wind on the Ground (W) 11kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 4kph Light Winds, no turbulence expected. Vertical Wind Shear: moderate |
Thermal Height 1266 m Great height for flying XC. |
Thermal Quality 100% Updraft Velocity 2.14m/s 419 ft/min |
Temperature 13 C It will be cold on the ground. It will be down to 0.3 C in the air. |
XC Potential (4hrs) 99km downwind XC or 54 km Triangle Possible by Sport Class Pilot. |
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Mon 28/09/2026 1300 AES |
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Wind on the Ground (W) 11kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 7kph Light Winds, no turbulence expected. Vertical Wind Shear: moderate |
Thermal Height 1347 m Great height for flying XC. |
Thermal Quality 100% Updraft Velocity 2.18m/s 427 ft/min |
Temperature 15 C It will be cool on the ground. It will be down to 1.5 C in the air. |
XC Potential (4hrs) 99km downwind XC or 54 km Triangle Possible by Sport Class Pilot. |
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Mon 28/09/2026 1500 AES |
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Wind on the Ground (W) 11kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 7kph Light Winds, no turbulence expected. Vertical Wind Shear: moderate |
Thermal Height 1282 m Great height for flying XC. |
Thermal Quality 100% Updraft Velocity 1.81m/s 355 ft/min |
Temperature 16 C It will be cool on the ground. It will be down to 3.2 C in the air. |
XC Potential (4hrs) 99km downwind XC or 54 km Triangle Possible by Sport Class Pilot. |
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Mon 28/09/2026 1700 AES |
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Wind on the Ground (WNW) 11kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 11kph Moderate winds, light turbulence possible. Vertical Wind Shear: light |
Thermal Height 657 m XC Possible but difficult conditions. |
Thermal Quality 20% Updraft Velocity 0.39m/s 76 ft/min |
Temperature 15 C It will be cool on the ground. It will be down to 8.4 C in the air. |
XC Potential (4hrs) 16.5km downwind XC or 9 km Triangle Possible by Sport Class Pilot. |
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Tue 29/09/2026 1100 AES |
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Wind on the Ground (NW) 14kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 14kph Moderate winds, light turbulence possible. Vertical Wind Shear: moderate |
Thermal Height 1242 m Great height for flying XC. |
Thermal Quality 90% Updraft Velocity 2.08m/s 408 ft/min |
Temperature 15 C It will be cool on the ground. It will be down to 2.6 C in the air. |
XC Potential (4hrs) 91.8km downwind XC or 43.2 km Triangle Possible by Sport Class Pilot. |
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Tue 29/09/2026 1300 AES |
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Wind on the Ground (NW) 14kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 14kph Moderate winds, light turbulence possible. Vertical Wind Shear: light |
Thermal Height 1375 m Great height for flying XC. |
Thermal Quality 100% Updraft Velocity 2.17m/s 425 ft/min |
Temperature 16 C It will be cool on the ground. It will be down to 2.3 C in the air. |
XC Potential (4hrs) 102km downwind XC or 48 km Triangle Possible by Sport Class Pilot. |
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Tue 29/09/2026 1500 AES |
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Wind on the Ground (NW) 14kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 14kph Moderate winds, light turbulence possible. Vertical Wind Shear: light |
Thermal Height 1325 m Great height for flying XC. |
Thermal Quality 90% Updraft Velocity 1.81m/s 355 ft/min |
Temperature 17 C It will be cool on the ground. It will be down to 3.8 C in the air. |
XC Potential (4hrs) 91.8km downwind XC or 43.2 km Triangle Possible by Sport Class Pilot. |
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Tue 29/09/2026 1700 AES |
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Wind on the Ground (NNW) 11kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 14kph Moderate winds, light turbulence possible. Vertical Wind Shear: light |
Thermal Height 657 m XC Possible but difficult conditions. |
Thermal Quality 20% Updraft Velocity 0.4m/s 78 ft/min |
Temperature 17 C It will be cool on the ground. It will be down to 10.4 C in the air. |
XC Potential (4hrs) 16.5km downwind XC or 9 km Triangle Possible by Sport Class Pilot. |
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Wed 30/09/2026 1100 AES |
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Wind on the Ground (N) 18kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 22kph Strong winds, expect rough air, Downwind tasks possible only. Vertical Wind Shear: high |
Thermal Height 1051 m Great height for flying XC. |
Thermal Quality 50% Updraft Velocity 1.78m/s 349 ft/min |
Temperature 18 C It will be cool on the ground. It will be down to 7.5 C in the air. |
XC Potential (4hrs) 52.5km downwind XC or 21 km Triangle Possible by Sport Class Pilot. |
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Wed 30/09/2026 1300 AES |
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Wind on the Ground (NNW) 18kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 25kph Strong winds, expect rough air, Downwind tasks possible only. Vertical Wind Shear: moderate |
Thermal Height 1418 m Great height for flying XC. |
Thermal Quality 60% Updraft Velocity 2.11m/s 414 ft/min |
Temperature 20 C It will be pleasant on the ground. |
XC Potential (4hrs) 63km downwind XC or 25.2 km Triangle Possible by Sport Class Pilot. |
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Wed 30/09/2026 1500 AES |
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Wind on the Ground (N) 18kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 25kph Strong winds, expect rough air, Downwind tasks possible only. Vertical Wind Shear: moderate |
Thermal Height 1124 m Great height for flying XC. |
Thermal Quality 40% Updraft Velocity 1.47m/s 288 ft/min |
Temperature 20 C It will be pleasant on the ground. |
XC Potential (4hrs) 42km downwind XC or 16.8 km Triangle Possible by Sport Class Pilot. |
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Wed 30/09/2026 1700 AES |
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Wind on the Ground (NE) 18kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 25kph Strong winds, expect rough air, Downwind tasks possible only. Vertical Wind Shear: high |
Thermal Height 657 m XC Possible but difficult conditions. |
Thermal Quality 0% Updraft Velocity 0m/s 0 ft/min |
Temperature 19 C It will be cool on the ground. It will be down to 12.4 C in the air. |
XC Potential (4hrs) 0km downwind XC or 0 km Triangle Possible by Sport Class Pilot. |
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Thu 01/10/2026 1100 AES |
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Wind on the Ground (NE) 22kph Strong winds, expect rough air, Downwind tasks possible only. |
Winds Aloft (N) 29kph Strong winds, expect rough air, Downwind tasks possible only. Vertical Wind Shear: high |
Thermal Height 857 m XC Possible but difficult conditions. |
Thermal Quality 30% Updraft Velocity 1.38m/s 270 ft/min |
Temperature 19 C It will be cool on the ground. It will be down to 10.4 C in the air. |
XC Potential (4hrs) 27km downwind XC or 9 km Triangle Possible by Sport Class Pilot. |
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Thu 01/10/2026 1300 AES |
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Wind on the Ground (N) 25kph Strong winds, expect rough air, Downwind tasks possible only. |
Winds Aloft (N) 36kph Dangerous winds! It will be very rough with strong rotor and turbulence. Vertical Wind Shear: high |
Thermal Height 657 m XC Possible but difficult conditions. |
Thermal Quality 20% Updraft Velocity 1.04m/s 204 ft/min |
Temperature 21 C It will be pleasant on the ground. |
XC Potential (4hrs) 18.5km downwind XC or 5 km Triangle Possible by Sport Class Pilot. |
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Thu 01/10/2026 1500 AES |
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Wind on the Ground (NNW) 32kph Dangerous winds! It will be very rough with strong rotor and turbulence. |
Winds Aloft (N) 40kph Dangerous winds! It will be very rough with strong rotor and turbulence. Vertical Wind Shear: high |
Thermal Height 657 m XC Possible but difficult conditions. |
Thermal Quality 10% Updraft Velocity 0.94m/s 184 ft/min |
Temperature 21 C It will be pleasant on the ground. |
XC Potential (4hrs) 9.75km downwind XC or 1.5 km Triangle Possible by Sport Class Pilot. |
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Thu 01/10/2026 1700 AES |
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Wind on the Ground (N) 29kph Strong winds, expect rough air, Downwind tasks possible only. |
Winds Aloft (NNE) 43kph Dangerous winds! It will be very rough with strong rotor and turbulence. Vertical Wind Shear: high |
Thermal Height 657 m XC Possible but difficult conditions. |
Thermal Quality 0% Updraft Velocity 0m/s 0 ft/min |
Temperature 17 C It will be cool on the ground. It will be down to 10.4 C in the air. |
XC Potential (4hrs) 0km downwind XC or 0 km Triangle Possible by Sport Class Pilot. |
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Fri 02/10/2026 1100 AES |
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Wind on the Ground (NW) 18kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 25kph Strong winds, expect rough air, Downwind tasks possible only. Vertical Wind Shear: moderate |
Thermal Height 657 m XC Possible but difficult conditions. |
Thermal Quality 20% Updraft Velocity 0.62m/s 122 ft/min |
Temperature 14 C It will be cold on the ground. It will be down to 7.4 C in the air. |
XC Potential (4hrs) 17.5km downwind XC or 7 km Triangle Possible by Sport Class Pilot. |
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Fri 02/10/2026 1300 AES |
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Wind on the Ground (W) 22kph Strong winds, expect rough air, Downwind tasks possible only. |
Winds Aloft (N) 25kph Strong winds, expect rough air, Downwind tasks possible only. Vertical Wind Shear: moderate |
Thermal Height 657 m XC Possible but difficult conditions. |
Thermal Quality 10% Updraft Velocity 0.43m/s 84 ft/min |
Temperature 14 C It will be cold on the ground. It will be down to 7.4 C in the air. |
XC Potential (4hrs) 9km downwind XC or 3 km Triangle Possible by Sport Class Pilot. |
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Fri 02/10/2026 1500 AES |
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Wind on the Ground (SSE) 25kph Strong winds, expect rough air, Downwind tasks possible only. |
Winds Aloft (N) 29kph Strong winds, expect rough air, Downwind tasks possible only. Vertical Wind Shear: moderate |
Thermal Height 657 m XC Possible but difficult conditions. |
Thermal Quality 10% Updraft Velocity 0.34m/s 67 ft/min |
Temperature 11 C It will be cold on the ground. It will be down to 4.4 C in the air. |
XC Potential (4hrs) 9.25km downwind XC or 2.5 km Triangle Possible by Sport Class Pilot. |
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Fri 02/10/2026 1700 AES |
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Wind on the Ground (SW) 18kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 22kph Strong winds, expect rough air, Downwind tasks possible only. Vertical Wind Shear: moderate |
Thermal Height 657 m XC Possible but difficult conditions. |
Thermal Quality 20% Updraft Velocity 0.79m/s 155 ft/min |
Temperature 12 C It will be cold on the ground. It will be down to 5.4 C in the air. |
XC Potential (4hrs) 17.5km downwind XC or 7 km Triangle Possible by Sport Class Pilot. |
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Sat 03/10/2026 1100 AES |
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Wind on the Ground (S) 32kph Dangerous winds! It will be very rough with strong rotor and turbulence. |
Winds Aloft (NNE) 47kph Dangerous winds! It will be very rough with strong rotor and turbulence. Vertical Wind Shear: extreme |
Thermal Height 1433 m Great height for flying XC. |
Thermal Quality 30% Updraft Velocity 2.29m/s 449 ft/min |
Temperature 10 C It will be cold on the ground. It will be down to -4.3 C in the air. |
XC Potential (4hrs) 35.1km downwind XC or 5.4 km Triangle Possible by Sport Class Pilot. |
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Sat 03/10/2026 1300 AES |
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Wind on the Ground (S) 40kph Dangerous winds! It will be very rough with strong rotor and turbulence. |
Winds Aloft (NNE) 54kph Dangerous winds! It will be very rough with strong rotor and turbulence. Vertical Wind Shear: extreme |
Thermal Height 1444 m Great height for flying XC. |
Thermal Quality 30% Updraft Velocity 2.43m/s 476 ft/min |
Temperature 11 C It will be cold on the ground. It will be down to -3.4 C in the air. |
XC Potential (4hrs) 36.9km downwind XC or 1.8 km Triangle Possible by Sport Class Pilot. |
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Sat 03/10/2026 1500 AES |
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Wind on the Ground (S) 43kph Dangerous winds! It will be very rough with strong rotor and turbulence. |
Winds Aloft (NNE) 58kph Dangerous winds! It will be very rough with strong rotor and turbulence. Vertical Wind Shear: extreme |
Thermal Height 1189 m Great height for flying XC. |
Thermal Quality 20% Updraft Velocity 1.97m/s 386 ft/min |
Temperature 10 C It will be cold on the ground. It will be down to -1.9 C in the air. |
XC Potential (4hrs) 25.2km downwind XC or 0 km Triangle Possible by Sport Class Pilot. |
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Sat 03/10/2026 1700 AES |
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Wind on the Ground (S) 36kph Dangerous winds! It will be very rough with strong rotor and turbulence. |
Winds Aloft (NNE) 54kph Dangerous winds! It will be very rough with strong rotor and turbulence. Vertical Wind Shear: extreme |
Thermal Height 657 m XC Possible but difficult conditions. |
Thermal Quality 10% Updraft Velocity 0.93m/s 182 ft/min |
Temperature 9 C It will be cold on the ground. It will be down to 2.4 C in the air. |
XC Potential (4hrs) 10km downwind XC or 1 km Triangle Possible by Sport Class Pilot. |
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Sun 04/10/2026 1100 AES |
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Wind on the Ground (ESE) 7kph Light Winds, no turbulence expected. |
Winds Aloft (N) 7kph Light Winds, no turbulence expected. Vertical Wind Shear: light |
Thermal Height 923 m XC Possible but difficult conditions. |
Thermal Quality 100% Updraft Velocity 1.18m/s 231 ft/min |
Temperature 12 C It will be cold on the ground. It will be down to 2.8 C in the air. |
XC Potential (4hrs) 80km downwind XC or 50 km Triangle Possible by Sport Class Pilot. |
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Sun 04/10/2026 1300 AES |
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Wind on the Ground (SSE) 11kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 7kph Light Winds, no turbulence expected. Vertical Wind Shear: light |
Thermal Height 657 m XC Possible but difficult conditions. |
Thermal Quality 80% Updraft Velocity 1.1m/s 216 ft/min |
Temperature 13 C It will be cold on the ground. It will be down to 6.4 C in the air. |
XC Potential (4hrs) 66km downwind XC or 36 km Triangle Possible by Sport Class Pilot. |
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Sun 04/10/2026 1500 AES |
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Wind on the Ground (SSE) 22kph Strong winds, expect rough air, Downwind tasks possible only. |
Winds Aloft (N) 22kph Strong winds, expect rough air, Downwind tasks possible only. Vertical Wind Shear: light |
Thermal Height 657 m XC Possible but difficult conditions. |
Thermal Quality 20% Updraft Velocity 0.66m/s 129 ft/min |
Temperature 11 C It will be cold on the ground. It will be down to 4.4 C in the air. |
XC Potential (4hrs) 18km downwind XC or 6 km Triangle Possible by Sport Class Pilot. |
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Sun 04/10/2026 1700 AES |
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Wind on the Ground (SSE) 18kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 25kph Strong winds, expect rough air, Downwind tasks possible only. Vertical Wind Shear: moderate |
Thermal Height 657 m XC Possible but difficult conditions. |
Thermal Quality 10% Updraft Velocity 0.27m/s 53 ft/min |
Temperature 10 C It will be cold on the ground. It will be down to 3.4 C in the air. |
XC Potential (4hrs) 8.75km downwind XC or 3.5 km Triangle Possible by Sport Class Pilot. |
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Mon 05/10/2026 1100 AES |
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Wind on the Ground (NW) 14kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 18kph Moderate winds, light turbulence possible. Vertical Wind Shear: moderate |
Thermal Height 1299 m Great height for flying XC. |
Thermal Quality 70% Updraft Velocity 2.01m/s 394 ft/min |
Temperature 13 C It will be cold on the ground. It will be down to 0 C in the air. |
XC Potential (4hrs) 71.4km downwind XC or 33.6 km Triangle Possible by Sport Class Pilot. |
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Mon 05/10/2026 1300 AES |
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Wind on the Ground (WNW) 22kph Strong winds, expect rough air, Downwind tasks possible only. |
Winds Aloft (N) 25kph Strong winds, expect rough air, Downwind tasks possible only. Vertical Wind Shear: moderate |
Thermal Height 1684 m Great height for flying XC. |
Thermal Quality 70% Updraft Velocity 2.5m/s 490 ft/min |
Temperature 15 C It will be cool on the ground. It will be down to -1.8 C in the air. |
XC Potential (4hrs) 75.6km downwind XC or 25.2 km Triangle Possible by Sport Class Pilot. |
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Mon 05/10/2026 1500 AES |
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Wind on the Ground (WNW) 22kph Strong winds, expect rough air, Downwind tasks possible only. |
Winds Aloft (N) 25kph Strong winds, expect rough air, Downwind tasks possible only. Vertical Wind Shear: moderate |
Thermal Height 1600 m Great height for flying XC. |
Thermal Quality 50% Updraft Velocity 2.11m/s 414 ft/min |
Temperature 15 C It will be cool on the ground. It will be down to -1 C in the air. |
XC Potential (4hrs) 54km downwind XC or 18 km Triangle Possible by Sport Class Pilot. |
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Mon 05/10/2026 1700 AES |
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Wind on the Ground (WNW) 14kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 22kph Strong winds, expect rough air, Downwind tasks possible only. Vertical Wind Shear: moderate |
Thermal Height 657 m XC Possible but difficult conditions. |
Thermal Quality 30% Updraft Velocity 0.9m/s 176 ft/min |
Temperature 14 C It will be cold on the ground. It will be down to 7.4 C in the air. |
XC Potential (4hrs) 25.5km downwind XC or 12 km Triangle Possible by Sport Class Pilot. |
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This is aimed primarily at the club level pilot who wants to know what to expect for the next week.
Data is calculated from the GFS model data using the RASP calculations daily.
Wind strengths are graded for aircraft suitability. 
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Wind speeds are average wind speeds, gusts will be higher.
Conditions are graded for how the average pilot will feel about them. ![]()
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Great flying conditions for XC
Turbulent XC flying conditions
Dangerous flying conditions
Likely Poor XC flying conditions
Problems? Suggestions? Send me an email....