textproduct: North Platte

KEY MESSAGES

- Dangerous heat persists into this evening for areas east of Highway 61. Temperatures are then expected to fall back into the low to middle 90s into midweek.

- Scattered thunderstorms are possible through tonight. A few storms could be strong to severe, with a threat for damaging wind gusts.

- A threat for daily showers and thunderstorms persists through Thursday across western and north central Nebraska. Warmer and drier conditions then return for the weekend.

SHORT TERM /THROUGH TUESDAY NIGHT/

Issued at 315 PM CDT Mon Jul 27 2026

Dangerous heat continues across much of the area this afternoon, with a combination of temperatures in the 90s and high humidity. This has pushed heat index values above 100F for areas along and east of HWY 61. Further west, persistent cloud cover and scattered showers and thunderstorms have kept temperatures cooler. Have opted to cancel the Heat Advisory west of HWY 61 with this in mind. The dangerous heat conditions will continue into this evening east of HWY 61, and the Heat Advisory remains in effect through 10 PM CDT.

The other concern for the rest of today and tonight will be a threat for strong to severe thunderstorms. Confidence in convective evolution remains low, with a few different potential mechanisms for thunderstorm initiation. The first is within a broad upslope regime where thunderstorms have recently initiated over southwestern South Dakota in the vicinity of the Black Hills. These storms could pose a risk for damaging winds as they move east with time, and could impact areas near and north of HWY 20 later this afternoon. Confidence in any severe weather quickly wanes south of HWY 20 and near and west of HWY 61 for now, as the aforementioned cloudy and rainy conditions have limited instability. Additional thunderstorms have recently initiated over portions of eastern Colorado/northwest Kansas, in the vicinity of a stalled surface boundary. These storms could also pose a risk for damaging wind gusts, as they move northeastward into southwest Nebraska with time. Recent high-res guidance suggests some threat for outflow from both the northern and southern thunderstorm regimes to move into the area by tonight, and could bring a threat for locally heavy rainfall wherever they eventually interact. Confidence in this is low of course, though will need to be monitored closely.

Relief from the dangerously hot conditions finally arrives tomorrow, as the anomalously warm air is finally shunted to the southeast of the area. That said, highs tomorrow and for much of the week are still expected to climb into the lower 90s across the entire area. A threat for thunderstorms exists again tomorrow off the high terrain, though confidence in this remains low for now. In fact, recent high-res guidance suggests that the bulk of thunderstorms may stay off to the southwest of the area in northeastern Colorado and northwest Kansas. Should any storms impact southwest Nebraska tomorrow, damaging winds again would be a threat, so trends will continue to be monitored.

LONG TERM /WEDNESDAY THROUGH MONDAY/

Issued at 315 PM CDT Mon Jul 27 2026

The active pattern persist into Wednesday and Thursday, as northwest flow continues aloft. This will keep a near daily threat for showers and thunderstorms across the area, as storms initiate and move east off the high terrain. It will also keep the area from seeing dangerous heat indicies through the end of the workweek, with daily highs remaining in the lower 90s. That said, conditions are expected to remain humid and could push heat index values into the middle 90s by Thursday. Stronger upper high pressure then begins to establish across the Four Corners as we head into this weekend, with flow weakening aloft and becoming more northerly. Heights rise aloft and this looks to bring drier conditions back to the area for Friday and into the weekend. Persistent warm advection will also boost highs back towards the middle 90s by early next week, with NBM probabilities creeping upwards (~50-70% probability of MaxT >95F) for much of the area. This could bring a return of heat concerns as we head into August, and trends will continue to be monitored.

AVIATION /18Z TAFS THROUGH 18Z TUESDAY/

Issued at 1240 PM CDT Mon Jul 27 2026

Outside of thunderstorms, VFR conditions are expected to prevail through tomorrow afternoon across western and north central Nebraska. Scattered thunderstorms are expected to impact western and southwest Nebraska this evening and tonight, leading to brief MVFR visibilities and gusty, erratic winds. Any lingering thunderstorms are expected to exit the area prior to sunrise tomorrow morning.

Winds remain easterly this afternoon and evening, at 10 to 15kts. Winds then become light and variable overnight, at 5kts or less.

LBF WATCHES/WARNINGS/ADVISORIES

Heat Advisory until 10 PM CDT /9 PM MDT/ this evening for NEZ005>010-023>029-035>038-057>059-069>071-094.