David Haig's play Pressure is a historical drama based on the true story of the weather forecaster who was charged with deciding on the date for D-Day, the Allied invasion of France in June 1944. It was first performed at the Royal Lyceum Theatre, Edinburgh, on 1 May 2014 in a co-production between The Lyceum and Chichester Festival Theatre.
The play's action begins on 2 June 1944, at the Supreme Headquarters of the Allied Expeditionary Force in Portsmouth, England. Everything is in place for the biggest invasion ever known in Europe – D-Day. One last crucial question remains: will the weather be right on the day? Problematically there are two opposing forecasts. American celebrity weatherman Colonel Krick predicts sunshine, while Scot Dr James Stagg, Chief Meteorological Officer for the Allied Forces, forecasts a storm. As the world watches and waits, General Eisenhower, Allied Supreme Commander, must decide which of these bitter antagonists to trust. The decision will not only seal the fates of thousands of men, but could win or lose the entire war.
The premiere production was directed by John Dove and designed by Colin Richmond. It was performed by David Haig (as James Stagg), Scott Gilmour, Anthony Bowers, Gilly Gilchrist, Robert Jack, Michael Mackenzie, Laura Rogers, Malcolm Sinclair, Tim Beckmann and Alister Cameron.
The production transferred to the Minerva Theatre, Chichester, on 31 May 2014. It was revived on a UK tour in February 2018, with performances at Park Theatre, London, in March 2018, and transferred to the Ambassadors Theatre in the West End in June 2018.