The trough of low pressure over central Nebraska will continue to move to the east during the next 12 - 24 hours, placing North Platte in the position to receive wrap-around moisture. Models indicate sufficient mid-level moisture will be present for the development of mid-level clouds over northwestern Nebraska. There exists a possibilty of precipitation in the targeted area or the formation of low-level stratus. This will affect the final go/no go decision. In the longer term, a weaker trough is expected to move through the North Platte area for Thursday, bringing with it drier air. As of this forecast, conditions do not look favorable for mid-level cloud development on Thursday. Curtis/Adam/John
The CLEX-9 field campaign has made the decision to stand down all operations for Wednesday, October 10th. Strong drying aloft and downward forcing are moving over the target area. Clearing has occurred over all of NE Colorado and is spreading into WY / NE in the wake of a low pressure system. There are no positive indications for mid-level cloud formation over the WY / NE / CO region this morning. In the longer term... a ridge will build over the area Thursday and likely inhibit cloud formation. Thursday evening the region begins to come under the influence of the next trough from the Pacific Northwest, which could provide sampling opportunities from Friday into the weekend. John/Adam
Sunrise Central Daylight Time Begin civil twilight 7:22 a.m. Sunrise 7:50 a.m. Sun transit 1:30 p.m. Sunset 7:10 p.m. End civil twilight 7:38 p.m.