Good Friday Morning,
Expect significant enroute issues in the Greek/Southern Italy airspace today due to heavy traffic along with clusters of thunderstorms with tops in excess of FL 370. Work stoppages will occur today at Helsinki, mainly affecting Finnair. GA flights should not be affected. Significant storm likely to impact New Zealand from early Saturday morning through Sunday morning bringing heavy rain with some high mountain snow possible on the South Island. Staffing issues along with weather issues continue in portions of the NYC area today. Expect significant delays. LFSB, Mulhouse, with have parking restrictions due to the Art Basel Event from 16-20 June. Notam A2559/25 refers. Starship Super Heavy is expected to launch on 21 May between 2330z and 0134z. This will likely affect the airspace from the BRO area to just North of Puerto Rico. Primary back update day will be 22 May.
Critical weather days / geomagnetic storm outlook – a critical weather day is in effect for today to support severe weather operations across the Mid MS River and the OH river valley region. A minor(G1) geomagnetic storm is forecast for Sunday.
Tropical cyclone outlook – all is quiet.
CONUS severe weather outlook – next five days look fairly active in terms of severe weather. Today and Sunday look to be very active. The highlighted area today will be centered over KY and on Sunday it will be centered over Eastern KS.
Europe outlook – a closed off upper level low over Poland will be the dominant weather feature over Eastern Europe on Saturday while a nearly stationary area of high pressure resides to the North of Scotland. On Sunday the closed upper-level low will move very slowly to the East with a cold front extending from the low to the Western Black Sea. Isolated daytime showers and thunderstorms area likely over much of Eastern Europe over the weekend, but no severe weather is forecast.
North Atlantic jet stream forecast – on Sunday, an upper level low to the SE of Greenland and the upper level low over Poland will allow for light winds across the region, generally North of 50N. This pattern will likely continue on Monday.
Images courtesy of wxcharts.com, pivotal weather.com, tropicaltidbits.com, UK met office, Weather prediction center, aviation weather center, weathernerds.org, Tomer tropical weather and the joint typhoon warning center.
