A sinkhole discovered near Runway 4/22 at LaGuardia Airport in New York has resulted in the immediate closure of the runway, prompting the Port Authority of New York & New Jersey to mobilize emergency construction and engineering crews for repairs. The sinkhole was identified during a routine inspection, and the Port Authority is working to address the issue swiftly and safely. Travelers are advised to expect significant delays and cancellations, particularly as thunderstorms are also forecasted to impact air traffic on Wednesday. The Federal Aviation Administration (FAA) has reported that weather-related delays are already affecting flights at LaGuardia and the other major airports serving the New York City area, as well as in Washington, D.C. This disruption comes just ahead of the busy Memorial Day travel period, further complicating travel plans for many. Southwest Airlines has indicated that approximately 20 of its arrivals will be delayed due to the sinkhole and adverse weather conditions. Delta Air Lines has introduced a weather waiver policy, allowing customers to rebook flights without incurring fees until Sunday, although other airlines have yet to respond regarding their policies.