textproduct: Hastings

KEY MESSAGES

-Fog potential for this morning has decreased, however higher potential for fog, especially south of I-80, is still present Monday morning.

-Precipitation chances remain very low through the next few days.

-Pleasant fall weather with highs in the 60s-70s, mostly clear skies, and light winds to end the weekend/begin the school week.

UPDATE

Issued at 218 AM CST Sun Nov 8 2026

The potential for fog this morning has trended downward as drier air advected from the north and west has kept humidities low enough to create a less favorable environment for fog. Areas of localized fog, especially in low lying areas near rivers and streams are still possible though unlikely to be impactful. Ridging building over the Rockies continues a slight warming trend with highs today reaching the mid-to-upper 60s. Weak surface pressure-gradients also keep winds light. Additionally, mid and upper-level winds out of the north and west advecting dry continental air keeps skies mostly clear aside from some transient upper level clouds. Overnight, light winds and clear skies allow temps to cool into the low-to-mid 40s.

Overnight into Monday morning, conditions again appear favorable for fog development. Current model runs show light southerly winds and higher relative humidity values in the 90-95% range especially in areas south of I-80, though the best fog potential remains just outside of our area. As the ridge continues to build over the Rockies the warming trend continues on Monday with temperatures in our area reaching the upper 60s-low 70s. Continued mid and upper-level winds out of the north and west continue to keep skies mostly clear. A low-pressure system moving across the Canadian Prairie brings a weak cold front through the area during the afternoon/evening hours on Monday which will drop lows into the mid 30s-low 40s.

An embedded shortwave trough moving through the area starting Monday afternoon through Tuesday brings a slightly cooler day on Tuesday with highs in the low-to-mid 60s. The mid and upper-level flow remains similar to the previous days, keeping clouds and precip from forming over the area. Additionally, the pressure gradient force still remains weak which continues the trend of light and variable winds. After Tuesday, ridging starts building back into the area behind the shortwave.

DISCUSSION

Issued at 117 PM CST Sat Nov 7 2026

Broad, upper-level descent behind a passing shortwave trough has allowed clear skies and dry conditions to develop over the area this morning. These clear skies, along with weak westerly winds around 5-10 MPH, will allow highs to climb into the 60s this afternoon. These clear skies will be interrupted by an upper-level cloud band moving over the area this evening through tonight. Despite the temporary increase in cloud cover, temperatures are expected to fall into the upper 30s to low 40s by tomorrow morning. These cool temperatures along with light winds gradually becoming more northerly promote the development of fog tonight into tomorrow morning, particularly south of Interstate 80 in low-lying areas. The latest 2 REFS ensemble runs (6Z and 12Z) both show a 20-40% chance of seeing visibilities dropping below 1 mile by tomorrow morning.

As the upper-level trough continues to progress eastward, a small ridge is expected to build into the area Sunday through Monday. This ridge will help promote the persisting dry conditions, clear skies, and high temperatures increasing into the mid 60s Sunday and Tuesday afternoons and into the mid to upper 60s Monday afternoon. Light northerly winds Sunday morning will gradually become southerly throughout the day, with speeds remaining around 5-10 MPH.

The chance of fog returns tomorrow night into Monday morning, as light winds and clear skies allow lows to fall into the low 40s. Recent model guidance currently indicates a 40-70% of seeing visibilities falling below 1 mile by Monday at 8AM, particularly for areas south of Highway 30.

Overall, model guidance is in agreement that a shortwave trough will pass over the area Tuesday evening into Wednesday, causing surface pressure to fall across the area. This strengthening pressure gradient will cause the surface wind speeds to increase, with gusts of 30-35 MPH possible Wednesday. Despite this wave moving overhead, the chance of precipitation remains minimal (up to a 5% chance Wednesday).

As a larger scale trough, with embedded shortwaves, develops across the northeast and a ridge develops over the western CONUS, greater uncertainty enters the forecast, as models disagree on the location and magnitude of this large-scale wave. For example, current ECMWF guidance shifts this trough more to the east, allowing warmer temperatures to develop across the Plains towards the end of next week. On the contrary, the GFS has this trough shifted more to the west, keeping cooler temperatures and windy conditions in the forecast longer. This disagreement has lead to current NBM guidance showing a spread of 15 degrees between the 75th to 25th percentile Friday afternoon, with a spread of 10 degrees entering the area as early as Thursday morning.

AVIATION /12Z TAFS THROUGH 12Z MONDAY/

Issued at 515 AM CST Sun Nov 8 2026

For KGRI/KEAR Airports:

VFR conditions are expected throughout the TAF period. Skies will be clear for most of the period aside from some transient upper level clouds. Winds start the period out of the northwest then begin to shift to light and variable around 16Z for KEAR and 18Z at KGRI. At around 2Z wind direction becomes more consistent out of the southwest and remain there through the rest of the period.

GID WATCHES/WARNINGS/ADVISORIES

NE...None. KS...None.