textproduct: North Platte

KEY MESSAGES

- Heat remains the main concern through Monday for much of western Nebraska with daytime highs ranging from the middle 90s to low 100s and similar heat indices.

- Fire concerns increase this weekend, particularly west of Highway 83, with breezy winds returning to go with the heat and dry air.

- Precipitation chances return as early as Sunday, but meaningful precipitation appears unlikely until Tuesday- Wednesday and mainly for far western zones (20-30% of > 0.25").

SHORT TERM /THROUGH SATURDAY/

Issued at 326 PM CDT Thu Jul 16 2026

Early this afternoon, diurnal cumulus developed across much of central and portions of western Nebraska. The NAM12 solution long depicted this as a likelihood and has as much the past few days. Afternoon temperatures ranged from upper 80s to middle 90s with the warmest values being across northern Nebraska. Winds persisted out of the south with occasional gusts nearing 20 mph and this is likely to be the peak speeds for the remainder of the daytime.

Tonight...modest low-level jet will develop this evening but advection regimes will largely be shunted east by late tonight and flow generally weak at that. As a result, overnight lows were lowered slightly and should better align with recent observed lows across the area. This suggests low to middle 60s for most and some locations across far north central Nebraska reaching the upper 60s to near 70F. This will limit relief from the heat as these values remain 5-10F above normal for mid-July.

Friday/Friday Night...a day of heighten concern for the anticipated heat across the area. Various heat parameters continue to highlight much of western Nebraska under some level of concern, culminating with the experimental NWS Heat Risk showing the "Major" category (level 3 of 4) across portions of north central Nebraska. Across the region, broad ridging will remain anchored immediately west of the area with h5 high pressure situated over Wyoming. Thermal ridging will work downslope off the higher terrain highlighted by h10-h5 thickness values climbing to 585 dam for much of the local area with h7 temperatures reaching 10-13C. The high temperature forecast leans on the model blend with bias correction to produce widespread 90s to near 100F along the Highway 20 corridor. This same bias correction was used to populated afternoon dew point values which maintains low 50s in the northwest to near 60F for central Nebraska. The result is heat indices (HI) reaching the upper 90s to near 100F along the Niobrara Valley east of Highway 83 but overall middle 90s elsewhere. This falls short of Heat Advisory criteria (HI >= 100F). That said, wet bulb globe temperatures will climb into the moderate and high levels for some of these same areas emphasizing the concern for persons expected to spend extended time outdoors. Persons should take adequate precautions to protect themselves from the heat. Overnight lows leaned heavily on MET/MAV guidance with a larger blend of the latter which was the warmer of the two solutions. This again painted widespread 60s with a few locations touching 70F for north central Nebraska. Weaker winds as a backdoor cool front settles in our northern zones should prevent the boundary layer from remaining overly mixed.

LONG TERM /SATURDAY NIGHT THROUGH THURSDAY/

Issued at 326 PM CDT Thu Jul 16 2026

Saturday through Monday...cool front will settle south through early Saturday as high pressure passes by to the northeast. Any lingering low-level density gradient should wash out by midday with broad easterly flow developing across much of the area. This is generally a cooling wind for western Nebraska with upslope flow and air originating from upper Mississippi Valley. This suggests a slightly cooler day and leaned on MET/NAM12 guidance to lower highs a bit. While most locations should still manage to touch the low to middle 90s, heat concerns will subside slightly across the area for roughly 24 hours. Strengthening flow on the backside of departing high pressure should keep low temperatures on the warmer side Saturday night into Sunday. And this will serve as a quick start to another hot day. NBM probabilities for > 100F increase substantially from near 30% on Saturday to 50-80% on Sunday across our northern zones. WBGT risk levels creep up to the High and Extreme levels and the current forecast calls for 100F+ heat indices so headlines may need considered with later forecasts. A warm front will stall just north of the area across southern South Dakota and potentially serve as a focus for rain and thunderstorms. While the NBM paints modest PoPs around 30% across our north, many NWP solutions keep precipitation north of us. This is further advertised by EPS/GEFS solutions which shows paints QPF from the higher percentile outputs largely across the South Dakota and little if anything south of Highway 20. Should activity develop further south, the high temperature forecast could be hindered but as alluded to, this is a low probability of occurrence. Equally high potential will exist on Monday for > 100F heat but focus will move to central and southwest Nebraska. A frontal boundary will again approach from the north with more steady northerly flow expected in its wake. Current timing favors a Monday evening passage but any quickening of its progression could lead to a downward trend in forecast high temperatures. It it interesting to note that NBM 10th-90th MaxT spread has increased slightly, particularly across our northern zones and suggests some quicker progression with the front is beginning to appear in various NWP guidance. This bears watching. Greater rain and thunderstorm potential will materialize across the High Plains west of the local area but will be combating relatively dry air, strong capping, and subsidence aloft (h5 height rises). This will largely prevent much activity from reaching west central Nebraska and keeps the focus across the Panhandle. Given limited rain potential, some dry lightning will be possible so will need to monitor for this potential in the coming day.

Tuesday and beyond...the area should squarely reside in a cooler airmass behind the now departing frontal boundary. This should allow for temperatures to fall to more seasonable levels for Tuesday and further decrease to slightly below normal values by midweek as surface high pressure glances by. NBM spread for MaxT values increases sizeably in the extended period. Overall though, broad upper high pressure will remain in place across the Southern Plains with upstream ridging through the end of the week. This suggests warm air will not be far away and day-to-day wavering of the forecast highs remains possible (10th to 90th spread nears 20F). Precipitation potential climbs for Tuesday through Thursday but will continue to favor our far western zones so many locations may struggle to see beneficial rainfall amounts. Indeed, EPS/GEFS potential to exceed 0.10" **run total** QPF through the end of the valid forecast period only hits 70-90% for the Sandhills and west with 50% or less for much of central and eastern Nebraska in that same timeframe.

AVIATION /18Z TAFS THROUGH 18Z FRIDAY/

Issued at 1249 PM CDT Thu Jul 16 2026

VFR conditions are expected through the forecast period.

Afternoon cumulus will expand across much of central and southwest Nebraska, likely lingering late into the evening hours. Cloud bases should remain at or above 6kft AGL. Though a shallow convective cell cannot be ruled out, this potential is greatest for central and eastern Nebraska which should miss either the KLBF or KVTN terminals. Expect thinning of clouds late tonight before renewed development returns by late morning Friday.

LBF WATCHES/WARNINGS/ADVISORIES

None.