Fri 08/08/2025 1100 AES |
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Wind on the Ground (SW) 7kph Light Winds, no turbulence expected. |
Winds Aloft (N) 4kph Light Winds, no turbulence expected. Vertical Wind Shear: light |
Thermal Height 1402 m Great height for flying XC. |
Thermal Quality 100% Updraft Velocity 1.89m/s 370 ft/min |
Temperature 12 C It will be cold on the ground. It will be down to -2 C in the air. |
XC Potential (4hrs) 96km downwind XC or 60 km Triangle Possible by Sport Class Pilot. |
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Fri 08/08/2025 1300 AES |
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Wind on the Ground (SW) 7kph Light Winds, no turbulence expected. |
Winds Aloft (N) 7kph Light Winds, no turbulence expected. Vertical Wind Shear: moderate |
Thermal Height 1634 m Great height for flying XC. |
Thermal Quality 100% Updraft Velocity 2.1m/s 412 ft/min |
Temperature 13 C It will be cold on the ground. It will be down to -3.3 C in the air. |
XC Potential (4hrs) 96km downwind XC or 60 km Triangle Possible by Sport Class Pilot. |
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Fri 08/08/2025 1500 AES |
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Wind on the Ground (S) 7kph Light Winds, no turbulence expected. |
Winds Aloft (N) 7kph Light Winds, no turbulence expected. Vertical Wind Shear: moderate |
Thermal Height 1557 m Great height for flying XC. |
Thermal Quality 100% Updraft Velocity 1.65m/s 323 ft/min |
Temperature 14 C It will be cold on the ground. It will be down to -1.6 C in the air. |
XC Potential (4hrs) 96km downwind XC or 60 km Triangle Possible by Sport Class Pilot. |
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Fri 08/08/2025 1700 AES |
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Wind on the Ground (ENE) 7kph Light Winds, no turbulence expected. |
Winds Aloft (N) 11kph Moderate winds, light turbulence possible. 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 09/08/2025 1100 AES |
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Wind on the Ground (ENE) 11kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 11kph Moderate winds, light turbulence possible. Vertical Wind Shear: light |
Thermal Height 1267 m Great height for flying XC. |
Thermal Quality 90% Updraft Velocity 1.78m/s 349 ft/min |
Temperature 12 C It will be cold on the ground. It will be down to -0.7 C in the air. |
XC Potential (4hrs) 89.1km downwind XC or 48.6 km Triangle Possible by Sport Class Pilot. |
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Sat 09/08/2025 1300 AES |
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Wind on the Ground (ENE) 14kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 14kph Moderate winds, light turbulence possible. Vertical Wind Shear: moderate |
Thermal Height 1549 m Great height for flying XC. |
Thermal Quality 100% Updraft Velocity 2.06m/s 404 ft/min |
Temperature 14 C It will be cold on the ground. It will be down to -1.5 C in the air. |
XC Potential (4hrs) 102km downwind XC or 48 km Triangle Possible by Sport Class Pilot. |
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Sat 09/08/2025 1500 AES |
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Wind on the Ground (ENE) 11kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 11kph Moderate winds, light turbulence possible. Vertical Wind Shear: moderate |
Thermal Height 1533 m Great height for flying XC. |
Thermal Quality 90% Updraft Velocity 1.68m/s 329 ft/min |
Temperature 14 C It will be cold on the ground. It will be down to -1.3 C in the air. |
XC Potential (4hrs) 89.1km downwind XC or 48.6 km Triangle Possible by Sport Class Pilot. |
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Sat 09/08/2025 1700 AES |
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Wind on the Ground (NE) 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 0% Updraft Velocity 0m/s 0 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) 0km downwind XC or 0 km Triangle Possible by Sport Class Pilot. |
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Sun 10/08/2025 1100 AES |
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Wind on the Ground (ENE) 7kph Light Winds, no turbulence expected. |
Winds Aloft (N) 4kph Light Winds, no turbulence expected. Vertical Wind Shear: moderate |
Thermal Height 1341 m Great height for flying XC. |
Thermal Quality 100% Updraft Velocity 1.89m/s 370 ft/min |
Temperature 12 C It will be cold on the ground. It will be down to -1.4 C in the air. |
XC Potential (4hrs) 96km downwind XC or 60 km Triangle Possible by Sport Class Pilot. |
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Sun 10/08/2025 1300 AES |
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Wind on the Ground (N) 4kph Light Winds, no turbulence expected. |
Winds Aloft (N) 4kph Light Winds, no turbulence expected. Vertical Wind Shear: moderate |
Thermal Height 1776 m Great height for flying XC. |
Thermal Quality 100% Updraft Velocity 2.23m/s 437 ft/min |
Temperature 13 C It will be cold on the ground. It will be down to -4.8 C in the air. |
XC Potential (4hrs) 93km downwind XC or 66 km Triangle Possible by Sport Class Pilot. |
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Sun 10/08/2025 1500 AES |
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Wind on the Ground (SW) 0kph Light Winds, no turbulence expected. |
Winds Aloft (N) 4kph Light Winds, no turbulence expected. Vertical Wind Shear: moderate |
Thermal Height 657 m XC Possible but difficult conditions. |
Thermal Quality 100% Updraft Velocity 0.76m/s 149 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) 75km downwind XC or 60 km Triangle Possible by Sport Class Pilot. |
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Sun 10/08/2025 1700 AES |
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Wind on the Ground (ENE) 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 0% Updraft Velocity 0m/s 0 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) 0km downwind XC or 0 km Triangle Possible by Sport Class Pilot. |
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Mon 11/08/2025 1100 AES |
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Wind on the Ground (W) 7kph Light Winds, no turbulence expected. |
Winds Aloft (N) 4kph Light Winds, no turbulence expected. Vertical Wind Shear: moderate |
Thermal Height 1154 m Great height for flying XC. |
Thermal Quality 100% Updraft Velocity 1.79m/s 351 ft/min |
Temperature 11 C It will be cold on the ground. It will be down to -0.5 C in the air. |
XC Potential (4hrs) 96km downwind XC or 60 km Triangle Possible by Sport Class Pilot. |
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Mon 11/08/2025 1300 AES |
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Wind on the Ground (W) 7kph Light Winds, no turbulence expected. |
Winds Aloft (N) 4kph Light Winds, no turbulence expected. Vertical Wind Shear: moderate |
Thermal Height 1300 m Great height for flying XC. |
Thermal Quality 100% Updraft Velocity 1.48m/s 290 ft/min |
Temperature 12 C It will be cold on the ground. It will be down to -1 C in the air. |
XC Potential (4hrs) 96km downwind XC or 60 km Triangle Possible by Sport Class Pilot. |
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Mon 11/08/2025 1500 AES |
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Wind on the Ground (WNW) 7kph Light Winds, no turbulence expected. |
Winds Aloft (N) 7kph Light Winds, no turbulence expected. Vertical Wind Shear: light |
Thermal Height 657 m XC Possible but difficult conditions. |
Thermal Quality 60% Updraft Velocity 0.5m/s 98 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) 48km downwind XC or 30 km Triangle Possible by Sport Class Pilot. |
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Mon 11/08/2025 1700 AES |
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Wind on the Ground (WNW) 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 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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Tue 12/08/2025 1100 AES |
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Wind on the Ground (N) 18kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 18kph Moderate winds, light turbulence possible. Vertical Wind Shear: moderate |
Thermal Height 1251 m Great height for flying XC. |
Thermal Quality 60% Updraft Velocity 1.9m/s 372 ft/min |
Temperature 11 C It will be cold on the ground. It will be down to -1.5 C in the air. |
XC Potential (4hrs) 63km downwind XC or 25.2 km Triangle Possible by Sport Class Pilot. |
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Tue 12/08/2025 1300 AES |
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Wind on the Ground (N) 14kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 18kph Moderate winds, light turbulence possible. Vertical Wind Shear: moderate |
Thermal Height 1629 m Great height for flying XC. |
Thermal Quality 80% Updraft Velocity 2.24m/s 439 ft/min |
Temperature 12 C It will be cold on the ground. It will be down to -4.3 C in the air. |
XC Potential (4hrs) 81.6km downwind XC or 38.4 km Triangle Possible by Sport Class Pilot. |
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Tue 12/08/2025 1500 AES |
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Wind on the Ground (NNW) 14kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 18kph Moderate winds, light turbulence possible. Vertical Wind Shear: moderate |
Thermal Height 928 m XC Possible but difficult conditions. |
Thermal Quality 40% Updraft Velocity 1.15m/s 225 ft/min |
Temperature 12 C It will be cold on the ground. It will be down to 2.7 C in the air. |
XC Potential (4hrs) 34km downwind XC or 16 km Triangle Possible by Sport Class Pilot. |
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Tue 12/08/2025 1700 AES |
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Wind on the Ground (N) 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 0% Updraft Velocity 0m/s 0 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) 0km downwind XC or 0 km Triangle Possible by Sport Class Pilot. |
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Wed 13/08/2025 1100 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 60% Updraft Velocity 0.78m/s 153 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) 49.5km downwind XC or 27 km Triangle Possible by Sport Class Pilot. |
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Wed 13/08/2025 1300 AES |
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Wind on the Ground (NW) 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 60% Updraft Velocity 0.96m/s 188 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) 49.5km downwind XC or 27 km Triangle Possible by Sport Class Pilot. |
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Wed 13/08/2025 1500 AES |
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Wind on the Ground (WSW) 7kph Light Winds, no turbulence expected. |
Winds Aloft (N) 11kph Moderate winds, light turbulence possible. Vertical Wind Shear: light |
Thermal Height 835 m XC Possible but difficult conditions. |
Thermal Quality 80% Updraft Velocity 1.25m/s 245 ft/min |
Temperature 9 C It will be cold on the ground. It will be down to 0.7 C in the air. |
XC Potential (4hrs) 64km downwind XC or 40 km Triangle Possible by Sport Class Pilot. |
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Wed 13/08/2025 1700 AES |
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Wind on the Ground (S) 18kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 32kph 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 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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Thu 14/08/2025 1100 AES |
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Wind on the Ground (SW) 11kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 11kph Moderate winds, light turbulence possible. Vertical Wind Shear: light |
Thermal Height 1228 m Great height for flying XC. |
Thermal Quality 100% Updraft Velocity 1.87m/s 367 ft/min |
Temperature 10 C It will be cold on the ground. It will be down to -2.3 C in the air. |
XC Potential (4hrs) 99km downwind XC or 54 km Triangle Possible by Sport Class Pilot. |
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Thu 14/08/2025 1300 AES |
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Wind on the Ground (WSW) 11kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 11kph Moderate winds, light turbulence possible. Vertical Wind Shear: moderate |
Thermal Height 1419 m Great height for flying XC. |
Thermal Quality 100% Updraft Velocity 2.05m/s 402 ft/min |
Temperature 12 C It will be cold on the ground. It will be down to -2.2 C in the air. |
XC Potential (4hrs) 99km downwind XC or 54 km Triangle Possible by Sport Class Pilot. |
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Thu 14/08/2025 1500 AES |
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Wind on the Ground (WSW) 11kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 14kph Moderate winds, light turbulence possible. Vertical Wind Shear: moderate |
Thermal Height 1366 m Great height for flying XC. |
Thermal Quality 80% Updraft Velocity 1.63m/s 319 ft/min |
Temperature 13 C It will be cold on the ground. It will be down to -0.7 C in the air. |
XC Potential (4hrs) 79.2km downwind XC or 43.2 km Triangle Possible by Sport Class Pilot. |
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Thu 14/08/2025 1700 AES |
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Wind on the Ground (W) 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 0% Updraft Velocity 0m/s 0 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) 0km downwind XC or 0 km Triangle Possible by Sport Class Pilot. |
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Fri 15/08/2025 1100 AES |
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Wind on the Ground (NNW) 11kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 11kph Moderate winds, light turbulence possible. Vertical Wind Shear: light |
Thermal Height 963 m XC Possible but difficult conditions. |
Thermal Quality 90% Updraft Velocity 1.61m/s 316 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) 74.25km downwind XC or 40.5 km Triangle Possible by Sport Class Pilot. |
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Fri 15/08/2025 1300 AES |
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Wind on the Ground (NNW) 14kph Moderate winds, light turbulence possible. |
Winds Aloft (N) 18kph Moderate winds, light turbulence possible. Vertical Wind Shear: moderate |
Thermal Height 1164 m Great height for flying XC. |
Thermal Quality 70% Updraft Velocity 1.87m/s 367 ft/min |
Temperature 12 C It will be cold on the ground. It will be down to 0.4 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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Fri 15/08/2025 1500 AES |
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Wind on the Ground (NNW) 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 1134 m Great height for flying XC. |
Thermal Quality 50% Updraft Velocity 1.56m/s 306 ft/min |
Temperature 12 C It will be cold on the ground. It will be down to 0.7 C in the air. |
XC Potential (4hrs) 52.5km downwind XC or 21 km Triangle Possible by Sport Class Pilot. |
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Fri 15/08/2025 1700 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 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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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.
Wind speeds are average wind speeds, gusts will be higher.
Conditions are graded for how the average pilot will feel about them.
Great flying conditions for XC
Turbulent XC flying conditions
Dangerous flying conditions
Likely Poor XC flying conditions
Problems? Suggestions? Send me an email....