Flymaster Open 2025 Krusevo weather forecast 9th June

 

Summary of the Day forecast

Finally, the time has come! 

The frontal zone has passed, leaving behind increased humidity, increased barometric pressure, lower temperatures and lighter north wings.

As we said before, our valley is relatively protected from the north winds, and the high sun energy together with enough strong thermals will create a barrier against this north winds leaving us a window of opportunity.

However, the north winds will be higher before the boundary layer starts organizing thermals and after the conditions start to decline. This means that the wind will drop from 12.30 to 16.00 in the take off, and in the valley the window will be better between 13.00 and 16.00h. After 16.00 we have potentially strong wings to the landing (22-32kph).

Initially we have a first cycle of the day with early clouds lifting up the humid air of the area. At 12.00 the conditions will drop and restart, with clouds on the mountains.

At 14.00 we have clouds in the center of the valley, until 16.00, when conditions start declining and cloud coverage starts to drop below 50%. 

thermals will be broken below 1600m , organize better and accelerate above this altitude as they mix with higher cold air mass.

More Details

Barometer & trend: 1012 mb increased after the frontal pass  

Temperature range DT: 12-25 = 13C which is high temperature contrast for thermal triggering

Dewpoint / time: 4,5 C West and 6,5 C East of the valley at 15.00h

Humidity: 40%

Cloud base: +2900m at 15.00h to the west , and +2600m in the valley east side

Cloud top: 4000m+ at 15.00h

Cloud types: Cu, Spreadout after 15.00h

Cloud coverage: up to 50% first in the mountains and later in the valley after 14.00h

Average Thermal: 3,1 m/s

Peak Thermal at Altitude: 3,1m/s at 1000, 4m/s at 1500m, +4,5m/s above 1500m

Top of Thermals: 2900 m to the west and 2650 to the east

Best Thermal Zone: 1600-2600m 

Wind Gust at take off: 7-18kph/13.00h, 14-24kph/15.00h, 22-31kph/16.00h

Wind Gust at landing: 22-32kph/13.00h, 14-24kph/15.00h, 22-32kph/16.00h

Winds at 15.00:

Ground wind:North 10-15 kph

600m: North 10-15 kph

1200m: North 10-15kph kph

1800m: North 12-15 kph

2400m: North 15-20 kph

3000m:  North 15-20kph kph

3600m: North West 25 kph

Day starts organizing at 10.30-11.00h

Conditions start declining after 17.30h

Best conditions Period 12.00-17.00h

Peak thermal conditions at 14.00h

Task duration 3,5h 

Calculated XC speed 35-37kph

Potential Day XC distance 130km

Ideal task 75 km

Rain east 100km