On May 17, 2026, separate meteorological events involving landspout tornadoes were documented in Aurora, Colorado, and the Cape Coral-Fort Myers region of Florida.

2026年5月17日，在科羅拉多州的奧羅拉（Aurora）以及佛羅里達州的開普科勒-邁阿密（Cape Coral-Fort Myers）地區，分別記錄到了涉及陸上龍捲風的獨立氣象事件。

In Colorado, a landspout tornado commenced at approximately 14:20 hours in eastern Aurora, specifically situated south of Denver International Airport and north of the Plains Conservation Center. According to meteorologist Chris Bianchi, this event constituted the initial confirmed tornado within the state for the 2026 calendar year. The phenomenon is characterized by the vertical extension of pre-existing surface vorticity into a developing cumulus cloud, a process distinct from the large-scale rotation inherent in supercell tornadoes. Statistical data indicates that landspouts comprise approximately 85 to 90 percent of Colorado's annual average of 45 tornadoes, typically manifesting as EF-0 or EF-1 events east of the Interstate 25 corridor. No casualties or structural damages were reported in the Aurora instance.

在科羅拉多州，一個陸上龍捲風於約 14:20 在奧羅拉（Aurora）東部開始，具體位於丹佛國際機場以南及平原保育中心（Plains Conservation Center）以北。根據氣象學家 Chris Bianchi 的說法，此次事件是 2026 曆年內該州首個確認的龍捲風。該現象的特徵是預先存在的地面渦度垂直延伸至發展中的積雲中，這一過程與超級單體龍捲風固有的規模化旋轉截然不同。統計數據顯示，陸上龍捲風約佔科羅拉多州每年平均 45 個龍捲風的 85% 至 90%，通常表現為 25 號州際公路走廊東側的 EF-0 或 EF-1 等級事件。奧羅拉此次事件未報告有人員傷亡或結構損壞。

Simultaneously, the Southwest Florida region experienced a band of severe thunderstorms. National Weather Service (NWS) meteorologist Tony Hurt indicated that preliminary evidence suggests the occurrence of two landspout tornadoes in the Cape Coral-Fort Myers area. One event reportedly transitioned into a waterspout upon crossing the Caloosahatchee River. Wind velocities were estimated between 65 and 80 miles per hour, resulting in light to moderate structural damage. These events are attributed to the interaction of sea breeze boundaries. Furthermore, the system precipitated over 3 inches of rainfall in parts of Naples, providing a marginal mitigation of the extreme drought conditions currently affecting Lee and Collier counties, as identified by the National Oceanic and Atmospheric Administration (NOAA).

與此同時，佛羅里達州西南部地區經歷了一帶強烈雷暴。美國國家氣象局（NWS）氣象學家 Tony Hurt 指出，初步證據顯示開普科勒-邁阿密（Cape Coral-Fort Myers）地區發生了兩個陸上龍捲風。據報導，其中一次事件在跨越卡盧薩哈奇河（Caloosahatchee River）後轉變為水龍捲。風速估計在每小時 65 至 80 英里之間，導致輕微至中度的結構損壞。這些事件被歸因於海風邊界的相互作用。此外，該系統在拿波里（Naples）部分地區帶來了超過 3 英吋的降雨，根據美國國家海洋及大氣管理局（NOAA）的認定，這對目前影響李郡（Lee）和科利爾郡（Collier）的極端乾旱狀況產生了輕微的緩解。

Both regions experienced transient landspout activity on May 17, resulting in minimal damage and, in the case of Florida, providing necessary precipitation to drought-stricken areas.

兩個地區在 5 月 17 日均經歷了短暫的陸上龍捲風活動，導致的損害極小，且在佛羅里達州的案例中，為乾旱地區提供了必要的降水。