textproduct: Duluth

KEY MESSAGES

- Areas of scattered snow showers with blustery northwest winds continue through this afternoon, diminishing through the evening and overnight. Localized visibility reductions and brief accumulations are expected.

- Light lake effect snow continues for Iron County, but may finally come to an end through the day Friday with drier air cutting off snowfall production.

- Next chance of snow through this weekend for areas from from Brainerd to Two Harbors and southeast, with the best chance (60%+) across NW WI. Locally higher amounts are possible for the South Shore.

DISCUSSION

Issued at 315 PM CST Thu Nov 27 2025

Deep in the backside of yesterday's low pressure, the Northland has seen predominantly overcast skies with some scattered snow showers this afternoon, partially enhanced in some places by large inland lakes. These showers have been able to drop visibilities as low as a 1/2 mile at times with quick minor snow accumulations. The moisture and lift supporting this activity should pull out of the Northland this evening and overnight into Friday, bringing much of the precipitation to an end. Our persistent lake effect snow for Iron County could continue into Friday midday to afternoon, but even that should wane into Friday evening as drier air moves in and winds begin to shift. A Winter Weather Advisory remains in effect for Iron County but will likely be allowed to expire at 6pm as remaining amounts should be fairly light.

Following about 12 hours of very subtle ridging and high pressure Friday evening into Saturday morning, a wide trough makes its way into the Central Plains Saturday, on track to bring heavy snow to areas to our south. However, there is no blocking high pressure to our north with this system and the PWAT plume does partially reach up into the Northland with some marginal synoptic lift. This is expected to lead to at least light snowfall accumulations for southern portions of the CWA with a greater than 20% chance of 2"+ for areas from Brainerd to Two Harbors and southeast. Much of NW WI has a 50-80% chance for the same amount. Winds off Lake Superior briefly turn northeast on Saturday, which could prime areas around the head of the lake for some snowfall, before those winds turn northwest once again bringing some localized higher amounts to the South Shore. At this point, current amounts are not headline worthy, but depending on future trends some Winter Weather Advisories may be needed.

Even colder air is expected to be pulled into the Northland behind this system bringing highs in the teens and lows below zero for the beginning of the work week. Through next week, global models are in decent agreement that we'll remain under northwest flow with a low over Hudson Bay. This could spit off some little shortwaves that have the potential to bring some clipper type systems to the Northland with additional light snow accumulations.

AVIATION /00Z TAFS THROUGH 00Z SATURDAY/

Issued at 524 PM CST Thu Nov 27 2025

A mix of MVFR and VFR ceilings out across the Northland this evening. Numerous snow showers can be seen on the radar that pack enough punch to drop visibilities to VLIFR at times. These snow showers are very transient leading to short periods of poor conditions and limited snow accumulations. This activity will taper off through the evening hours. We will still see some streamers coming off of the larger inland lakes that still may impact INL/HIB. Largely expect a return to VFR by tomorrow afternoon, the exception will be HYR which may still have lingering MVFR ceilings.

MARINE /FOR NEAR SHORE WATERS OF WESTERN LAKE SUPERIOR/

Issued at 315 PM CST Thu Nov 27 2025

Brisk northwest winds continue across Western Lake Superior this evening and into Friday morning, slowly weakening. Along portions of the North Shore, winds have been very strong, gusting upwards of 35- 40knots and a Gale Warning remains in effect. Little to no model data support this high of winds, so uncertainty is high on when gales will truly end, but based on observations so far today have extended the Gale Warning through 9pm for now. Through the day Friday, any lingering warning and advisories should be able to drop off as winds diminish.

For the open water discussion, refer to the NWS Marquette Area Forecast Discussion at weather.gov/mqt.

DLH WATCHES/WARNINGS/ADVISORIES

MN...None. WI...Winter Weather Advisory until 6 PM CST this evening for WIZ004. MARINE...Small Craft Advisory until 9 AM CST Friday for LSZ121-143- 146>148-150. Gale Warning until 9 PM CST this evening for LSZ140>142. Small Craft Advisory until midnight CST tonight for LSZ144-145.