617 FXUS63 KFGF 072141 AFDFGFArea Forecast Discussion National Weather Service Grand Forks ND 441 PM CDT Tue Oct 7 2025
.KEY MESSAGES...
- Freeze warning impacts late tonight into early Wednesday morning over portions of the Red River Valley into northwest Minnesota.
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.DISCUSSION... Issued at 353 PM CDT Tue Oct 7 2025
...Synopsis...
Strong subsidence and surface high pressure will maintain dry conditions through late week. This will promote efficient radiational cooling in a cool air mass in the heart of the surface high that will migrate into central Minnesota by Wednesday morning. This will drive freezing temperatures into the upper 20s for locations mainly east of the Red River Valley.
Very dry air and increasing southerly winds will bring potential for near critical fire weather conditions for Minnesota locations east of Highway 59 corridor Wednesday afternoon. Should winds look to exceed 15 mph, near critical fire weather conditions will ensue.
Into late this week, warming trend is still on track as upper ridging builds into the central CONUS into south-central CAN, with a brief halt in warming around Friday as a weak cold front moves through. With upper ridging building this weekend, southwest flow aloft is progged by late weekend. This will promote increased moisture into the Northern Plains, and bring our next chance for precipitation. At this time, there are no signals for impactful weather from this chance of precipitation.
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.AVIATION /18Z TAFS THROUGH 18Z WEDNESDAY/... Issued at 1208 PM CDT Tue Oct 7 2025
High confidence in VFR conditions throughout the TAF period for all sites. Dry air mass over the area will lead to SKC dominating at all sites. Dry air mass will prevent fog formation as well.
Winds will be generally light and variable below 6kt through at least 00Z. Winds increase out of the south 10-15kt in eastern ND between 00Z-12Z, with all sites seeing increase 15-20kt gusting to 28kt out of the south, highest in eastern North Dakota and the Red River Valley.
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.FGF WATCHES/WARNINGS/ADVISORIES... ND...Freeze Warning from midnight tonight to 9 AM CDT Wednesday for NDZ008-016-027-029-030. MN...Freeze Warning from midnight tonight to 9 AM CDT Wednesday for MNZ001-002-004>009-013>017-022>024-027-028-031-032.
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DISCUSSION...CJ AVIATION...CJ
NWS FGF Office Area Forecast Discussion