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Thu 28/05/2026 1100 AES |
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Wind on the Ground (SSE) 4kph Light Winds, no turbulence expected. |
Winds Aloft (N) 7kph Light Winds, no turbulence expected. Vertical Wind Shear: moderate |
Thermal Height 657 m XC Possible but difficult conditions. |
Thermal Quality 90% Updraft Velocity 1.05m/s 206 ft/min |
Temperature 16 C It will be cool on the ground. It will be down to 9.4 C in the air. |
XC Potential (4hrs) 69.75km downwind XC or 49.5 km Triangle Possible by Sport Class Pilot. |
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Thu 28/05/2026 1300 AES |
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Wind on the Ground (NNW) 0kph Light Winds, no turbulence expected. |
Winds Aloft (N) 7kph Light Winds, no turbulence expected. Vertical Wind Shear: moderate |
Thermal Height 1237 m Great height for flying XC. |
Thermal Quality 100% Updraft Velocity 1.55m/s 304 ft/min |
Temperature 18 C It will be cool on the ground. It will be down to 5.6 C in the air. |
XC Potential (4hrs) 90km downwind XC or 72 km Triangle Possible by Sport Class Pilot. |
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Thu 28/05/2026 1500 AES |
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Wind on the Ground (NW) 7kph Light Winds, no turbulence expected. |
Winds Aloft (N) 7kph Light Winds, no turbulence expected. Vertical Wind Shear: moderate |
Thermal Height 657 m XC Possible but difficult conditions. |
Thermal Quality 90% Updraft Velocity 1.02m/s 200 ft/min |
Temperature 18 C It will be cool on the ground. It will be down to 11.4 C in the air. |
XC Potential (4hrs) 72km downwind XC or 45 km Triangle Possible by Sport Class Pilot. |
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Thu 28/05/2026 1700 AES |
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Wind on the Ground (WNW) 7kph Light Winds, no turbulence expected. |
Winds Aloft (N) 4kph Light Winds, no turbulence expected. Vertical Wind Shear: light |
Thermal Height 657 m XC Possible but difficult conditions. |
Thermal Quality 0% Updraft Velocity 0m/s 0 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) 0km downwind XC or 0 km Triangle Possible by Sport Class Pilot. |
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Fri 29/05/2026 1100 AES |
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Wind on the Ground (WNW) 7kph Light Winds, no turbulence expected. |
Winds Aloft (N) 4kph Light Winds, no turbulence expected. Vertical Wind Shear: light |
Thermal Height 715 m XC Possible but difficult conditions. |
Thermal Quality 100% Updraft Velocity 1.15m/s 225 ft/min |
Temperature 15 C It will be cool on the ground. It will be down to 7.9 C in the air. |
XC Potential (4hrs) 80km downwind XC or 50 km Triangle Possible by Sport Class Pilot. |
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Fri 29/05/2026 1300 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 891 m XC Possible but difficult conditions. |
Thermal Quality 100% Updraft Velocity 1.37m/s 269 ft/min |
Temperature 16 C It will be cool on the ground. It will be down to 7.1 C in the air. |
XC Potential (4hrs) 82.5km downwind XC or 45 km Triangle Possible by Sport Class Pilot. |
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Fri 29/05/2026 1500 AES |
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Wind on the Ground (WNW) 18kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 18kph Moderate winds, light turbulence possible. Vertical Wind Shear: light |
Thermal Height 657 m XC Possible but difficult conditions. |
Thermal Quality 40% Updraft Velocity 1m/s 196 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) 35km downwind XC or 14 km Triangle Possible by Sport Class Pilot. |
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Fri 29/05/2026 1700 AES |
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Wind on the Ground (NW) 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: moderate |
Thermal Height 657 m XC Possible but difficult conditions. |
Thermal Quality 0% Updraft Velocity 0m/s 0 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) 0km downwind XC or 0 km Triangle Possible by Sport Class Pilot. |
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Sat 30/05/2026 1100 AES |
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Wind on the Ground (W) 14kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 18kph Moderate winds, light turbulence possible. Vertical Wind Shear: moderate |
Thermal Height 980 m XC Possible but difficult conditions. |
Thermal Quality 50% Updraft Velocity 1.55m/s 304 ft/min |
Temperature 11 C It will be cold on the ground. It will be down to 1.2 C in the air. |
XC Potential (4hrs) 42.5km downwind XC or 20 km Triangle Possible by Sport Class Pilot. |
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Sat 30/05/2026 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 1055 m Great height for flying XC. |
Thermal Quality 40% Updraft Velocity 1.39m/s 272 ft/min |
Temperature 11 C It will be cold on the ground. It will be down to 0.4 C in the air. |
XC Potential (4hrs) 43.2km downwind XC or 14.4 km Triangle Possible by Sport Class Pilot. |
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Sat 30/05/2026 1500 AES |
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Wind on the Ground (WSW) 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 1037 m Great height for flying XC. |
Thermal Quality 40% Updraft Velocity 1.36m/s 267 ft/min |
Temperature 10 C It will be cold on the ground. It will be down to -0.4 C in the air. |
XC Potential (4hrs) 43.2km downwind XC or 14.4 km Triangle Possible by Sport Class Pilot. |
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Sat 30/05/2026 1700 AES |
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Wind on the Ground (SW) 18kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 29kph 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 8 C It will be cold on the ground. It will be down to 1.4 C in the air. |
XC Potential (4hrs) 0km downwind XC or 0 km Triangle Possible by Sport Class Pilot. |
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Sun 31/05/2026 1100 AES |
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Wind on the Ground (WSW) 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 934 m XC Possible but difficult conditions. |
Thermal Quality 30% Updraft Velocity 1.26m/s 247 ft/min |
Temperature 7 C It will be cold on the ground. It will be down to -2.3 C in the air. |
XC Potential (4hrs) 26.25km downwind XC or 10.5 km Triangle Possible by Sport Class Pilot. |
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Sun 31/05/2026 1300 AES |
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Wind on the Ground (SW) 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 1216 m Great height for flying XC. |
Thermal Quality 50% Updraft Velocity 1.87m/s 367 ft/min |
Temperature 8 C It will be cold on the ground. It will be down to -4.2 C in the air. |
XC Potential (4hrs) 54km downwind XC or 18 km Triangle Possible by Sport Class Pilot. |
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Sun 31/05/2026 1500 AES |
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Wind on the Ground (W) 14kph 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 30% Updraft Velocity 0.71m/s 139 ft/min |
Temperature 7 C It will be cold on the ground. It will be down to 0.4 C in the air. |
XC Potential (4hrs) 25.5km downwind XC or 12 km Triangle Possible by Sport Class Pilot. |
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Sun 31/05/2026 1700 AES |
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Wind on the Ground (WNW) 14kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 18kph Moderate winds, light turbulence possible. Vertical Wind Shear: moderate |
Thermal Height 657 m XC Possible but difficult conditions. |
Thermal Quality 10% Updraft Velocity 0.18m/s 35 ft/min |
Temperature 6 C It will be cold on the ground. It will be down to -0.6 C in the air. |
XC Potential (4hrs) 8.5km downwind XC or 4 km Triangle Possible by Sport Class Pilot. |
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Mon 01/06/2026 1100 AES |
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Wind on the Ground (NNE) 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: moderate |
Thermal Height 830 m XC Possible but difficult conditions. |
Thermal Quality 30% Updraft Velocity 1.38m/s 270 ft/min |
Temperature 8 C It will be cold on the ground. It will be down to -0.3 C in the air. |
XC Potential (4hrs) 27km downwind XC or 9 km Triangle Possible by Sport Class Pilot. |
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Mon 01/06/2026 1300 AES |
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Wind on the Ground (N) 29kph 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: moderate |
Thermal Height 1132 m Great height for flying XC. |
Thermal Quality 30% Updraft Velocity 1.73m/s 339 ft/min |
Temperature 9 C It will be cold on the ground. It will be down to -2.3 C in the air. |
XC Potential (4hrs) 34.2km downwind XC or 7.2 km Triangle Possible by Sport Class Pilot. |
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Mon 01/06/2026 1500 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 10% Updraft Velocity 0.81m/s 159 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) 9.5km downwind XC or 2 km Triangle Possible by Sport Class Pilot. |
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Mon 01/06/2026 1700 AES |
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Wind on the Ground (N) 29kph Strong winds, expect rough air, Downwind tasks possible only. |
Winds Aloft (NNE) 50kph 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 0% Updraft Velocity 0m/s 0 ft/min |
Temperature 7 C It will be cold on the ground. It will be down to 0.4 C in the air. |
XC Potential (4hrs) 0km downwind XC or 0 km Triangle Possible by Sport Class Pilot. |
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Tue 02/06/2026 1100 AES |
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Wind on the Ground (WNW) 29kph 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 10% Updraft Velocity 0.56m/s 110 ft/min |
Temperature 7 C It will be cold on the ground. It will be down to 0.4 C in the air. |
XC Potential (4hrs) 9.5km downwind XC or 2 km Triangle Possible by Sport Class Pilot. |
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Tue 02/06/2026 1300 AES |
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Wind on the Ground (WNW) 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 0.39m/s 76 ft/min |
Temperature 7 C It will be cold on the ground. It will be down to 0.4 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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Tue 02/06/2026 1500 AES |
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Wind on the Ground (WNW) 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 0% Updraft Velocity 0.17m/s 33 ft/min |
Temperature 7 C It will be cold on the ground. It will be down to 0.4 C in the air. |
XC Potential (4hrs) 0km downwind XC or 0 km Triangle Possible by Sport Class Pilot. |
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Tue 02/06/2026 1700 AES |
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Wind on the Ground (WNW) 25kph Strong winds, expect rough air, Downwind tasks possible only. |
Winds Aloft (NNE) 58kph 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 0% Updraft Velocity 0m/s 0 ft/min |
Temperature 7 C It will be cold on the ground. It will be down to 0.4 C in the air. |
XC Potential (4hrs) 0km downwind XC or 0 km Triangle Possible by Sport Class Pilot. |
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Wed 03/06/2026 1100 AES |
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Wind on the Ground (WNW) 29kph Strong winds, expect rough air, Downwind tasks possible only. |
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 0.49m/s 96 ft/min |
Temperature 6 C It will be cold on the ground. It will be down to -0.6 C in the air. |
XC Potential (4hrs) 9.5km downwind XC or 2 km Triangle Possible by Sport Class Pilot. |
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Wed 03/06/2026 1300 AES |
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Wind on the Ground (WNW) 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 0.48m/s 94 ft/min |
Temperature 7 C It will be cold on the ground. It will be down to 0.4 C in the air. |
XC Potential (4hrs) 9.75km downwind XC or 1.5 km Triangle Possible by Sport Class Pilot. |
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Wed 03/06/2026 1500 AES |
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Wind on the Ground (WNW) 32kph Dangerous winds! It will be very rough with strong rotor and turbulence. |
Winds Aloft (NNE) 43kph 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 0% Updraft Velocity 0.31m/s 61 ft/min |
Temperature 7 C It will be cold on the ground. It will be down to 0.4 C in the air. |
XC Potential (4hrs) 0km downwind XC or 0 km Triangle Possible by Sport Class Pilot. |
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Wed 03/06/2026 1700 AES |
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Wind on the Ground (WNW) 32kph Dangerous winds! It will be very rough with strong rotor and turbulence. |
Winds Aloft (NNE) 72kph 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 0% Updraft Velocity 0m/s 0 ft/min |
Temperature 6 C It will be cold on the ground. It will be down to -0.6 C in the air. |
XC Potential (4hrs) 0km downwind XC or 0 km Triangle Possible by Sport Class Pilot. |
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Thu 04/06/2026 1100 AES |
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Wind on the Ground (WNW) 29kph 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 10% Updraft Velocity 0.83m/s 163 ft/min |
Temperature 5 C It will be cold on the ground. It will be down to -1.6 C in the air. |
XC Potential (4hrs) 9.5km downwind XC or 2 km Triangle Possible by Sport Class Pilot. |
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Thu 04/06/2026 1300 AES |
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Wind on the Ground (WNW) 29kph 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: moderate |
Thermal Height 657 m XC Possible but difficult conditions. |
Thermal Quality 10% Updraft Velocity 0.79m/s 155 ft/min |
Temperature 6 C It will be cold on the ground. It will be down to -0.6 C in the air. |
XC Potential (4hrs) 9.5km downwind XC or 2 km Triangle Possible by Sport Class Pilot. |
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Thu 04/06/2026 1500 AES |
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Wind on the Ground (WNW) 29kph 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 0.9m/s 176 ft/min |
Temperature 6 C It will be cold on the ground. It will be down to -0.6 C in the air. |
XC Potential (4hrs) 19km downwind XC or 4 km Triangle Possible by Sport Class Pilot. |
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Thu 04/06/2026 1700 AES |
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Wind on the Ground (WNW) 25kph Strong winds, expect rough air, Downwind tasks possible only. |
Winds Aloft (NNE) 50kph 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 0% Updraft Velocity 0m/s 0 ft/min |
Temperature 5 C It will be cold on the ground. It will be down to -1.6 C in the air. |
XC Potential (4hrs) 0km downwind XC or 0 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....