


Area Forecast Discussion
Issued by NWS Duluth, MN
Issued by NWS Duluth, MN
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052 FXUS63 KDLH 050803 AFDDLH Area Forecast Discussion National Weather Service Duluth MN 303 AM CDT Sat Jul 5 2025 .KEY MESSAGES... - A few strong thunderstorms remain possible today, with wind gusts of 40-60mph, small hail, and locally heavy rainfall the main threats. - Cooler and drier air arrives behind a passing cold front, with more seasonal temperatures expected through next week. - A couple opportunities for isolated to scattered showers and storms next week, but severe storms are not expected. && .DISCUSSION... Issued at 157 AM CDT Sat Jul 5 2025 A band of moderate to heavy rainfall, with embedded thunderstorms, is moving through the Northland this morning, ahead of a cold front currently entering far northwest MN. Instability parameters have decreased over the last couple of hours that coincided with a decrease in storm strength. Moisture transport remains high into the Northland, and expect moderate to heavy rainfall to continue. The front will continue southward, slowly pushing the band of rain eastward through the morning hours, with greatest rain chances shifting to over northwest WI. Activity will become more scattered through the day, as forcing weakens with the upper level trough pulling off to the east. PW values remain quite elevated at 2.0+ inches across northwest Wisconsin ahead of the front, resulting in periods of heavy rainfall. Given the current soil conditions and a more transient nature of the rainfall today, do not expect widespread flooding concerns across northwest Wisconsin. Cannot rule out a strong thunderstorm given wind shear values of 30-40kts, but lapse rates are weaker with much lower CAPE values than seen on Friday. Drier air and cooler temperatures arrive from northwest to southeast behind the cold front, with drier/rain free conditions on Sunday with highs in the upper 60s to upper 70s. Temperatures remain more seasonal through the week. A more zonal mid to upper-level flow pattern sets up early next week, with a shortwave arriving Monday afternoon, with isolated to scattered showers and storms possible. Another shortwave arrives in the Thursday to Friday timeframe. At this point, there doesn`t appear to be any strong signal for widespread strong to severe storm potential early next week. && .AVIATION /06Z TAFS THROUGH 06Z SUNDAY/... Issued at 1235 AM CDT Sat Jul 5 2025 A line of rainfall with embedded thunderstorms continues to move west to east through the Northland tonight, with current impacts - reductions in vis, heavy rainfall, and lightning - from HIB to BRD. As this activity continues eastward, expect reductions in vis due to heavy rainfall. Generally, winds will be from the south to southwest at less than 10kts. However, stronger TS, if they track across the terminal, could produce stronger wind gusts. This activity will slowly shift to HYR Saturday morning. As a cold front moves through the area, cigs lower early Saturday at most terminals, with winds becoming northwesterly, with speeds up to 10kts and gusts of 15-20kt during the afternoon. Winds should remain elevated enough to prevent widespread fog. Slight improvement in cigs is expected by early afternoon as rainfall begins to exit to the east. && .MARINE /FOR NEAR SHORE WATERS OF WESTERN LAKE SUPERIOR/... Issued at 157 AM CDT Sat Jul 5 2025 A few strong thunderstorms are possible this morning and afternoon as a cold front moves through the area. Southwest winds will become northerly through the day today, with wind gusts at the head of the lake at 15-20kts during the afternoon. Winds become northeasterly Sunday, with gusts up to 15kts around the Twin Ports. For the open water discussion, refer to the NWS Marquette Area Forecast Discussion at weather.gov/mqt. && .DLH WATCHES/WARNINGS/ADVISORIES... MN...Flood Watch until 1 PM CDT this afternoon for MNZ011-012- 019>021-025-026-033>037. WI...None. MARINE...None. && $$ DISCUSSION...HA AVIATION...HA MARINE...HA