Marine Weather and Tide Forecast for Aten, NE

DISCUSSION
Issued at 248 PM CST Sat Dec 7 2024

CURRENT THROUGH TONIGHT: Quiet conditions continue across the region, with latest satellite imagery showing a bit cirrus still drifting overhead. With the aid of W/SW winds and efficient mixing, have seen temperatures rise into the 50s to lower 60s - which is notably warm compared to days past. Heading into the late afternoon/evening, should see breezy winds quickly subside allowing light and variable conditions to prevail overnight with lows in the upper 20s.

SUNDAY: Southerly winds and weak ridging will keep conditions mild Sunday, at least for most of the morning and afternoon, before a moisture starved cold front dives across the Northern Plains. Thus, expect above average temperatures to largely prevail - especially in areas east of I-29, where FROPA may take a bit longer to occur. As alluded to in the previous discussion, will also see winds pick up through the morning as the SPG tightens - with direction shifting northwesterly in the wake of FROPA. Currently have gusts ranging between 20 to 35 MPH, the strongest occurring across central SD.

SUNDAY NIGHT THROUGH WEDNESDAY: While winds look to weaken a bit Sunday night, expect another period of breezy gusts to return by daybreak Monday as the first push of CAA arrives and the secondary cold front swings through. Currently have widespread gusts between 30 to 40 MPH, with perhaps a few areas across south-central SD flirting with advisory level criteria. Outside of breezy conditions, will also see temperatures dive from the 30s to lower 40s back into the teens to 20s by Wednesday as an Arctic high pressure slides overhead. Regarding precipitation, have maintained NBM's low (<20%)
PoPs as soundings show limited saturation in the lower levels of the atmosphere. Ensemble probability of measurable (0.01" or more)
liquid equivalent also remain low to moderate (30-60%) during this time, so if we receive any precip, it would likely be light. Highest chances are focused along the US Hwy 14 corridor.

THURSDAY ONWARD: Northwesterly flow returns by Thursday into the end of next week. Little agreement in the details of the flow and any waves late next week, but pattern would favor near to above average temperatures returning.

AVIATION /00Z TAFS THROUGH 00Z MONDAY/
Issued at 455 PM CST Sat Dec 7 2024

VFR conditions expected through the TAF period. Winds will become light and variable tonight, increasing out of the southeast on Sunday morning. By early afternoon, winds will become gusty, while transitioning to west/northwesterly through the afternoon and evening with the passage of a boundary.

FSD WATCHES/WARNINGS/ADVISORIES
SD...None.
MN...None.
IA...None.
NE...None.