Soaring Weather Forecast Aug 19th - for Aetheria pre-PWC and 33rd Hellenic Championship 2024

 

Summary of the day - General Weather

The unstable air has been well established in the area.

A local front will pass from the area at 15:00 making conditions not fit.

Cirrus in the morning from the SW followed by As and Cu with Overdevelopment. Later at 15.00 we expect CuCon and CBs

Frontal zones are expected in Italy and in the Balkan peninsula. 

Solar radiation increases further which combines with 70% humidity and the mixture is super unstable.

No change in Barometer, no change in humidity. 

Yesterday Cirrus clouds delayed the evolution of events. on Monday We still have some cirrus, and Ac clouds but in the first cloud layer gap precipitation will come sooner at 15.00.

The most important change is the increase of the SouthWest winds above 30kph at 3000m

Details

Temperatures

Barometer unchanged at 1003mb

Min Τ 22 Max Τ32  ΔΤ 10 C relatively unstable conditions

Dewpoint increases above high ground and stays low above the valley. This will give higher cloudbase in the west valley than above the mountains

Clouds Forecast

Cloudbase initially 2300 at 11.30h, later at 15.00h will increase to 3300m average, then gradually decline.

The southern the higher cloudbase as yesterday

cloud tops +2000 above Askio, +3000 above the valley and +6000-8000m in Kastoria. 

Cloud coverage expected 35-55% at 15.00h in the valley and Kastoria 100% at 15.00h

Cloud Types Ci, As, Cu, Cu Con, CBs

Inversion Levels 800m, 2300m

Thermals Analysis

Thermals at levels +4m above 1000m at siatista, +5>1400m

Top of Lift 2700m at 15.00, then decline after 16.00h

Zone Ideal between 1500 and 2300m

Winds at 15.00

Wind Gust 25+kph

from Ground to 1200m S15kph

At 1800m South 20kph 

At 2400m S22kph

At 3000m SW 30

>3000m SW>30kph

Speeds and flight Duration

XC Speed 30kph

Start of the Day 11.00

decline day after 16.00

Duration of XC 2-3h due to rain 

Potential Task N/A