Flymaster Open 2025 Krusevo weather forecast July 12th

 

Summary of the Day forecast

The NE winds dissapear from the frame, and light west winds appear in our area. 

Higher temperatures +5 C, and lower humidity create a high air density combination.

Thermal triggering is good, organized thermals close to the ground, and an east breeze which can create convergence lines above Krusevo mountains.

Very high cloud bases, and top of lift higher than yesterday.

Initially we will have east winds below the inversion of 1600-1700m. After 13.30 the sun will switch to the west side and west gusts may be stronger. But Clouds which will grow all around the high ground may bring east gusts for take off from the D1. Later D2 will be the take off.

Possible convergence line across Krusevo mountain ridge can increase cloud coverage from north to south up to 70%, especially to the North and to the South at 16.30h.

More Details

Barometer & trend: Stable   

Temperature range DT: 17-30 = 13C suggest good triggering

Dewpoint / time: 5 C at 15.00h 

Humidity: drops by 5% making the day stronger than yesterday

Cloud base: 3400m at 14.00h to the high ground and 3100m in the valley

Cloud top: +1500m from cloud base with spreadout above high ground

Cloud types: Cu, Spreadout after 16.30h

Cloud coverage: up to 55% in the valley at 16.00h, maybe more to the south

Average Thermal: 3,7 m/s 

Peak Thermal at Altitude: 3m/s at 1000, 4m/s at 1500m, +4,5m/s at 2000m similar

Top of Thermals: +100m vs yesterday theoretically up to 2600 usable hight

Best Thermal Zone: 1700-2200m 

Wind Gust: 15-20 kph

Ground wind: ESE <10 kph

600m: ESE <10kph

1200m: ESE <10kph

1800m: W <10 kph closing to the inversion

2400m: W 15 kph

3000m:  West 20 kph

3600m: West 20 kph

winds below 1700 may swich to West after 13.30h

Day starts organizing thermals at 12.00h later 1h

Conditions start declining after 18.00h later 1h

Best conditions Period 13.00-18.00h

Peak thermal conditions at 15.00h, like yesterday

Task duration 4 h 

Calculated XC speed 35+ kph faster to the south 

Potential Day XC distance 120km similar to yesterday

Ideal task 77 km

Rain West north west after 17.00