textproduct: North Platte

KEY MESSAGES

- Above normal temperatures continue this week with 80s/90s Tuesday, and 70s/80s each day Wednesday through Saturday.

- Confidence remains high (80-90%) that dry conditions persist for most if not all locations until the weekend.

- A pattern change will bring more seasonable temperatures early next week along with an increased rain potential though precise details remain uncertain at this time.

SHORT TERM /THROUGH TUESDAY NIGHT/

Issued at 308 PM CDT Mon Oct 5 2026

This afternoon, gusty south southwest winds were the primary change to the sensible weather across the local area. Midday wind gust readings ranged from 25 to 35 mph with the strongest occurring across the Sandhills into portions of central Nebraska. Temperatures were in the upper 70s to lower 80s for much of the area with additional warming expected with continued insolation for 3-5 more hours.

For tonight, winds should gradually weaken through the late afternoon and evening. This is attributable to the departure of the low-level speed max, located roughly 1-2km AGL, to the east. Winds should persist into the evening, though weaker, as the low-level jet stretches from northwest Kansas into southeastern South Dakota. This will promote mild lows across north central Nebraska tonight as winds manage to mix to the surface. Expect values only in the 50s, with some sheltered locations like river valleys holding onto the upper 40s.

Tuesday/Tuesday Night...another quite warm day is expected on Tuesday with various guidance suggesting more widespread 80s and potential for a few locations to hit the 90s. Surface trough will settle east through the area by early in the day with veering light winds for the daytime. Day over day increases with h85 temperatures, roughly 3-5C for most locations, suggest warmer peak temperatures should be possible from Monday's observations. NBM inner-quartile values do show an increase across the board with tight clustering suggesting fairly high confidence in occurrence. HREF probabilities for MaxT values exceeding 80F are nearly 100% across all areas but fall off considerably for exceeding 85F, particularly north of the Platte Valley system. Even with this in mind, statistical guidance has been fairly good recently and so the forecast highs lean considerably on the MET/METBC with a slight nudge to MAV/MAVBC output. The latter of these groups suggests monthly record highs could be in jeopardy, but this seems fairly unlikely thus the preference of leaning on the former. While drier air from the high terrain should spill east into west central Nebraska leading to humidity minimums falling into the 15 to 25 percent range, winds will fall short of 15 mph and keep any and all fire concerns low. A weak frontal boundary will settle south into the area late in the day with reinforcing high pressure quickly following. The introduction of northerly flow drawing in drier air should allow for a somewhat cooler night though lows will still hold in the upper 40s to lower 50s for the area though timing of this front may lead to further cooling in subsequent forecasts.

LONG TERM /WEDNESDAY THROUGH MONDAY/

Issued at 308 PM CDT Mon Oct 5 2026

Northwesterly flow will persist mid-week through the following weekend as low amplitude ridging resides off the southern California coast and deep troughing lingers across the Hudson Bay. While the forecast is largely dry for the latter half of the week, a subtle wrinkle could lead to some light precipitation potential Thursday though confidence in occurrence is low. Approaching high pressure may foster some weak fgen/moisture convergence on the leading edge and be enough to lead to shower and thunderstorm development. There's no NWP solution more bullish on this than the 12z NAM12 which not only shows fairly expansive coverage of rain/thunderstorms but also suggests rainfall amounts will exceed 1" for many locations. This seems fairly far-fetched given < 1" precipitable water values and uncertainties on enough lift to even materialize to lead to this activity. Even so, though to a much lesser degree, the early morning ECMWF shows some modest QPF splotches in the area and like the GFS, remains fairly inconsistent on this potential with wavering between subsequent model runs. There appears to be some ensemble support with EPS/GEFS both showing non-zero probabilities for measurable rain in the area though the NBM is very slow to pick up on this. For now, will keep PoPs limited to 10-14% which maintains a dry forecast but is a sizable increase from previous forecasts.

Friday into the weekend sees the beginning of a pattern change. Deep troughing will dive into the Pacific Northwest as ridging begins to wane over the eastern Pacific. Ridge breakdown locally begins Friday and continues into the weekend as southwesterly flow resumes. A pronounced h5 low should take shape by early next week which will likely stall the feature and delay its arrival onto the Plains. Multiple lead impulses ahead of the parent trough should support at least low-end precipitation chances late Sunday into Monday. With the arrival of the main upper-level low, precipitation chances should steadily increase. The NBM broadbrushes "Chance" categorical PoPs (35-45%) for late Monday into Tuesday and feel this is adequate for now. Some timing differences exist within the global models so later forecasts will likely see these values cleaned up some as confidence increases.

AVIATION /00Z TAFS THROUGH 00Z WEDNESDAY/

Issued at 621 PM CDT Mon Oct 5 2026

VFR conditions will persist through Tuesday as high pressure settles back over the region. Skies will remain clear to mostly clear with only some high level clouds possible. Any stronger wind gusts early this evening will gradually diminish after sunset. Expect a wind shift from the south to the north northwest by Tuesday afternoon, but winds will generally remain below 10 knots.

LBF WATCHES/WARNINGS/ADVISORIES

None.