Winter Storm “Wesley” to affect a large area of the upper Midwest

Map: National Weather Service.

Southwest Airlines issued this statement:

Based on the forecasted weather conditions for the following cities, our scheduled service may be disrupted (flights may be delayed, diverted, and/or cancelled) on the following dates:

Wednesday, April 10:

• Milwaukee, WI (MKE)

Wednesday, April 10, and Thursday, April 11:

• Denver, CO (DEN)

Wednesday, April 10, through Friday, April 12:

• Minneapolis, MN (MSP)

Customers who are holding reservations for these cities on the dates noted above, and want to alter their travel plans may rebook in the original class of service or travel standby (within 14 days of their original date of travel between the original city-pairs and in accordance with our accommodation procedures) without paying any additional charge.

Customers who purchased their itinerary via Southwest.com or our mobile app are eligible to reschedule their travel plans online or from their mobile device.

Customers who did not purchase a ticket via Southwest.com can call 1-800-435-9792 to speak with a Customer Representative.

Customers in the U.S. scheduled to travel internationally must call 1-800-435-9792 to speak with a Customer Representative for assistance with rebooking.

Delta Air Lines issued this statement:

Delta has proactively issued two weather waivers ahead of a winter storm Wednesday and Thursday for the Upper Midwest area and Colorado.

This latest winter system is expected to bring frozen and mixed precipitation to Delta’s Minneapolis/St. Paul hub and surrounding cities, spanning from the Upper Peninsula of Michigan, down through Central Minnesota and down into eastern South Dakota and Colorado. Winter precipitation is slated to begin Wednesday afternoon through Thursday, prompting the potential for schedule adjustments Thursday as a result of field conditions at airports in the region.

Delta’s routes from the MSP hub:

Both the Upper Midwest and Colorado waivers allow customers traveling to, from or through the cities included to make a one-time change to their itinerary without incurring a fee.

Delta’s Meteorology team continues to keep an eye on the late-winter storm system, closely analyzing the latest data from various weather forecasting models as the storm moves through the Rocky Mountains. Factoring in the mountainous typography and other variables, each model has provided separate, though converging, forecasts for cities in the Upper Midwest region and Colorado.

As the system approaches, the weather prediction models are expected to more closely align on precipitation amounts, wind speeds and timing, allowing the airline’s meteorologists to provide the most accurate and detailed information to Delta’s operations teams. They’ll use that information to plan for any necessary changes to flight schedules to minimize the operational impact.

Customers are encouraged to check their flight status on Delta.com or the Fly Delta Mobile App. Customers can also get updates sent directly to their mobile device or by email with One-Time Flight Notification.​

Update April 8, 5 p.m. ET

Delta’s Meteorology team in the airline’s Operations and Customer Center are keeping an eye on a late winter storm system that is expected to bring frozen and mixed precipitation to the Northern Plains of the United States Wednesday afternoon through Thursday.

Moving east from the Pacific Northwest region Monday, specifics around timing, precipitation totals and wind speeds are still coming together as Delta meteorologists analyze the latest weather model data. Details around the storm will likely be better defined Tuesday after the system crosses the Rockies.

Wind speeds and precipitation totals will be better projected as the storm moves eastward from the Pacific Northwest.

Customers can check their flight status by visiting Delta.com, checking the Fly Delta Mobile App, opting in for updates sent directly to their mobile device or via email with a One-Time Flight Notification.