textproduct: Omaha/Valley

KEY MESSAGES

- Remaining light rain activity will continue to shift south of the area, with anything that does reach the ground staying close to a trace.

- Cooler temperatures are expected the through Wednesday, with frost possible Wednesday and Thursday mornings across northeast Nebraska.

- High temperatures will gradually rise back into the 70s by the end of the work week, with additional rain chances (40-70%) Saturday into Sunday.

DISCUSSION

Issued at 132 PM CDT Tue May 5 2026

Today and Tonight:

Water vapor imagery this afternoon features a broad trough over the northeastern CONUS squashing most of the mid/upper flow south of the area, while a cutoff low pushes further into the Great Basin. Cooler conditions have settled into the area after the frontal passage yesterday, with 50s and 60s on tap for highs this afternoon underneath a building cumulus field and mid/upper clouds continuing to waft by across southeast Nebraska into Iowa. Embedded in those mid/upper clouds have been some very light shower activity, that has only amounted in trace measurements, and is set to further diminish through the day. Our continue green-up continues to tamp down fire danger, with RH values in the 25-35% this afternoon and even drier conditions later this week needing stronger winds to cause concern. Heading into the overnight hours, the northerly wind will funnel cooler air into the area, with 30s expected at our lowest. Cloud cover overnight could keep us from cooling too much, and the current forecast is on the chilly side of guidance -- meaning if we realize it or cooler, northeast Nebraska may need a Freeze Warning for a handful of counties. Winds should be just enough to keep frost formation limited, making a Frost Advisory unlikely at this time.

Wednesday and Beyond:

Moving forward through the middle of the week, we'll continue to see the aforementioned low to the west push to the east, but struggle to move into the area as it is steered southeast underneath the stout trough to the northeast. We'll be stuck in northwesterly flow through the weekend into Next week, with rain chances making or breaking on weak shortwaves that will only amount to meager rainfall if they do end up precipitating. The area's most widespread chance at rainfall arrives from British Columbia/Alberta Saturday, with quite a bit of wiggle room existing in it's placement. The trough to the northeast will still be continuing to swirl over the Great Lakes, and will repel systems away from moving too far eastward into the Central and Northern Plains. Temperatures will stay cool Wednesday, and then start a slow climb that continues over the next 7 days as heights build over the western third of the CONUS.

AVIATION /18Z TAFS THROUGH 18Z WEDNESDAY/

Issued at 1235 PM CDT Tue May 5 2026

VFR conditions are expected to last through the next 24 hours, with north-northwesterly winds and occasional gusts to 15-20 kts occurring through the afternoon. Winds will become light overnight, varying somewhat in direction but leaning northerly, before returning north-northwesterly tomorrow morning.

OAX WATCHES/WARNINGS/ADVISORIES

NE...None. IA...None.