textproduct: Hastings

KEY MESSAGES

- A Heat Advisory remains in effect for a few of our east/southeast counties until 10PM tonight (Hamilton/Adam/Webster/Smith/Osborne counties) with counties including and south of Polk and Clay in NE and Jewell in KS now in effect until 9PM Monday.

- Highs Monday will again be expected to peak in the 90s to low 100s across the area with heat index values as high as 100-107 possible within the Advisory area.

- A few storms may pop up along a passing cold front Monday afternoon to night. It is uncertain how expansive the coverage of storms may become, though the best potential currently looks to be concentrated more towards the central to eastern portions of the area.

- The strongest storms Monday afternoon/evening may be capable of producing wind gusts in exceedance of 60MPH with hail up to the size of quarters possible.

- The rest of the week will look to maintain highs between the upper 80s to low 100s with occasional off-and-on period of thunderstorms.

DISCUSSION

Issued at 336 PM CDT Sun Jun 28 2026

Warm and humid air has made its push into the area today following the passage of a warm front this morning. Temperatures in the 90s to low 100s today with dewpoints in the 60s to low 70s have helped inflate heat index values to as high as 100-107 across far eastern portions of the area (places with the higher humidity and under the heat advisory). In terms of heat relief tonight for areas south and east of the Tri-Cities, temperatures will not be expected to drop below the upper 70s to low 80s (warmest lows across a few Kansas locations or Nebraska areas near and east of HWY-81).

The main change this forecast cycle has been the decision to locally extend the furthest eastern row of counties within today's heat advisory (Mitchell to Clay to Polk counties) until 9PM Monday. This decision comes as heat indices may once again near/exceeded 105 degrees Monday afternoon for these locations with limited overnight heat relief expected tonight into Monday morning. The latest forecast now highlights similar temperatures returning (possibly a degree or two lower than today) with lingering moisture content (upper 60s to low 70s dewpoints) that will keep conditions fairly similar on Monday. The one saving grace that could provide some heat relief may come from the presence of gusty southerly winds or even a few clouds building in during the later afternoon hours.

The southerly winds today will continue to increase this evening and overnight as wind speeds are expected to peak near 20-25MPH with gusts as high as 30-35+. These breezy condition should stick around for much of the night. Gusty winds lingering into the day Monday will later settle for much of the central to northwestern portions of the area. Far southern and eastern portions of the area, however, may still retain periods of gusty winds during the afternoon and evening hours (up to 25-35MPH gusts possible). Thankfully, the areas expected to have the greatest heat and humidity impacts will also be some of the same areas that likely receive these gusty winds or even some scattered cloud coverage later on.

Confidence regarding the storm potential for Monday afternoon to night has began to narrow some. A few storms, some of which may become severe, could form as a cold front passes through from west to east. Though a few storms could possibly fire off anywhere along this front (The NAMNEST model is more aggressive with storm coverage than some of the other models), the general consciences places the better storm potential across primarily the central (Tri-Citries area) as well as eastern to northern portions of the area (locations with the higher humidity and convective environment). Given the hot temperatures, MUCAPE values of up to 2,000-4,000J/kg would be available for storms to take advantage of as well as some 35-55kts of bulk shear in regards to increased support from the mid-to-upper level jet. A Marginal Risk of severe weather will be in place across most places (besides a few west/northwest portions of the area) with the greatest severe threat mainly falling between 5PM and 3AM Monday night. The main severe hazard with the stronger storms will be damaging wind gusts in excess of 60MPH. Hail up to the size of quarters may still be possible, though the hail threat will not be as significant.

Taking a step back to observe the synoptic environment, we observe a Northern Rockies center trough off to our northwest with a Southeast U.S. ridge resting southeast of the area. These two features will keep the mid-to-upper level jet nearby (just northwest of the local area) for now. This wave pattern will soon look to resemble a wetter signal with several shortwave disturbances, embedded within the jet, possible to pop out of the flow. These off-and-on disturbances could stir up a few sporadic thunderstorm activity. The forecast for much of the rest of the week now features at least minor PoPs across some portion of the forecast area every afternoon to night. Besides the occasional thunderstorm chances, the temperature forecast continues to keep highs in the upper 80s and 90s each day. Later on in the week (Friday and Saturday) a few southern Nebraska and Kansas locations may see highs near the tipple digits once more.

AVIATION /06Z TAFS THROUGH 06Z TUESDAY/

Issued at 1159 PM CDT Sun Jun 28 2026

For KGRI/KEAR Airports:

Overall, there is high confidence in VFR conditions through the period. There is only a low (20-30%) chance for thunderstorms late in the period (03-06Z Tuesday).

Surface winds remain gusty tonight, but stronger winds aloft will continue to lead to LLWS concerns through sunrise on Monday. Another round of LLWS is possible Monday night as well.

GID WATCHES/WARNINGS/ADVISORIES

NE...Heat Advisory until 9 PM CDT Monday for NEZ049-064-076-077-086- 087. KS...Heat Advisory until 9 PM CDT Monday for KSZ007-019.