How Pacific Hurricanes Are Triggering Floods in Southwest Colorado: Is Climate Change to Blame?

Two hurricane systems recently hit the Pacific Ocean, bringing historic rainfall to western Colorado. The southwest part of the state suffered significant flooding, especially in La Plata and Archuleta counties, where costs are estimated to exceed $1 million. Pagosa Springs was particularly affected, with videos on social media showing hot springs resorts flooded by the San Juan River. Thankfully, reports indicate no lasting damage here.

Amid the flooding, the availability of federal assistance remains uncertain due to a government shutdown. Most FEMA workers are still on the job, but funding from the Disaster Relief Fund is running low. This could lead to delays in reimbursements for states and municipalities.

In response to the situation, Gov. Jared Polis has verbally declared a disaster, activating additional resources. The state has also extended tax deadlines for those impacted. Officials are working with FEMA and other federal entities to assess the damage and mobilize support.

Climate Change and Flooding

Over a short span, some areas recorded up to six inches of rain. The Upper San Juan SNOTEL site experienced its largest two-day precipitation since 2005, while the Vallecito site reported its highest-ever measurement. This unusual amount of rainfall raises questions about climate change’s influence.

Russ Schumacher, Colorado’s State Climatologist, indicates that warmer ocean temperatures may contribute to larger hurricanes that produce more rain. Research shows that hurricane severity is indeed linked to climate change. He mentioned that even a small increase in rainfall can worsen flooding.

Historically, similar moisture from hurricanes has reached Colorado, with significant floods recorded, like the one in October 1911. Today, after these floods, there may be some silver lining: the region could benefit from increased soil moisture and reservoir levels, potentially easing drought conditions in the future.

Interestingly, only 1.3% of Colorado remained in extreme drought a week after the flooding, down from 14%. While the shift from severe drought to flooding isn’t ideal, it underscores the need for better water management strategies.

In summary, while flooding can bring challenges, it also provides a glimpse into how our climate is shifting and how we can adapt to ensure a more sustainable future. For more insights on climate change and its effects, you can check out this analysis.

Source link