On Memorial Day, U.S. stock exchanges were closed, but in Paris, wheat prices surged due to predictions of decreased harvests in Ukraine, Africa, and Russia. The rise in prices is attributed to drought in North Africa, decreased production in Russia, and lower forecasts for Ukraine's grain and oilseed crops, leading to increased import needs. September wheat futures on Paris Euronext experienced a nearly 3% increase, reaching a 14-month high of €269/t or $292.6/t. The article also mentions a slight increase in the EU's wheat yield estimate for 2024, but concerns about Russia and Ukraine offset this optimism, resulting in reduced export forecasts for both countries. Ukraine's export purchase prices for wheat have also increased due to the dollar exchange rate. Potential rainfall in Ukraine and southwest Russia could impact the harvest projections.