textproduct: Bismarck

KEY MESSAGES

- Areas of fog, possibly dense, may return to portions of southeastern and far south central North Dakota tonight into Saturday morning.

- Dry weather with high temperatures above normal this weekend.

- Mainly dry weather conditions continue through much of next week, with continued above normal temperatures.

UPDATE

Issued at 557 PM CST Fri Nov 6 2026

Fog in the south central has not formed yet, although there are some low stratus in the area. The challenge will be satellite detection of the fog, there are high cirrus clouds in the same area. Hi-res models continue to have fog form starting after 6pm.

DISCUSSION

Issued at 240 PM CST Fri Nov 6 2026

Currently, embedded S/WV moving east across far south central Canada and the Northern Plains, with a weak sfc boundary across the Dakotas. Lingering clouds associated with the wave have kept afternoon temperatures on the cooler side south central and east in the 40s, while we have warmed up elsewhere into the 50s where the sky is clear.

RAP, HRRR, and RRFS all suggest fog redeveloping south central and southeast this evening ahead of the quasi-stationary boundary, then eroding west to east 06-14Z as the boundary shifts east. Have this in the forecast and HWO. Behind this boundary, winds become breezy out of the west/northwest on Saturday, with the combination of sunshine and mixing warming temperatures during the day well into the 50s to lower 60s.

Upper ridging over the Desert Southwest expands north and northeast across the Rockies and into the Northern Plains Sunday, with our flow aloft becoming more zonal and helping to maintain milder air over the region, with highs Sunday again in the mid 50s to lower 60s.

Above normal temperatures and mainly dry conditions look to persist well into next week. Ridging to our west and overall troughing across the eastern CONUS may allow weak impulses at times moving across the region. Uncertainty very high with any precipitation, which the low POP numbers of the NBM reflect. Near to above normal high temperatures in the mid 40s to mid 50s are forecast, cooler to the east and warmer to the west, with low 60s possible west on the warm side of the flow possible.

AVIATION /00Z TAFS THROUGH 00Z SUNDAY/

Issued at 557 PM CST Fri Nov 6 2026

VFR through the period. The south central will likely have areas of dense fog starting after 01z through Saturday morning. The fog should stay out of KBIS and KJMS, but will AMD TAF if it moves in. Winds will turn to the west and gust near 25kts by Saturday afternoon.

BIS WATCHES/WARNINGS/ADVISORIES

None.