FXUS63 KFGF 022343 AFDFGF Area Forecast Discussion National Weather Service Grand Forks ND 643 PM CDT Wed Jul 2 2025 .KEY MESSAGES... - There is a level 2 out of 5 risk for severe storms for eastern North Dakota into northwest Minnesota late Thursday night into early Friday morning. Main hazards include hail to the size of ping pong balls and gusty winds to 60 mph. - Additional severe storm potential (level 1 out of 5 risk) during the afternoon and evening on Friday the Fourth of July eastern North Dakota into Minnesota. Main hazards include hail, gusty winds, and flash flooding. - Heat related impact potential exists Friday the Fourth of July as heat indices approach 100. && .UPDATE... Issued at 643 PM CDT Wed Jul 2 2025 Had a weak shower go up just north of Fargo, but quickly dissipated as it drew in dry mid-level air. Still some rather beefy cumulus hanging around the weak boundary in the area so will keep isolated POP mention with slight adjustments. However, any activity will be very isolated and impacts limited to a brief downpour. && .DISCUSSION... Issued at 349 PM CDT Wed Jul 2 2025 ...Synopsis... Upper ridge moving into the Northern Plains will allow increasing low level moisture content and warmer temperatures into the region starting today, peaking on Friday. While there is a small chance (20%) for an isolated thunderstorm today, lingering dry air and weak forcing for ascent will keep chances low. Should a thunderstorm form, gusty winds to 50 mph may occur. Cannot rule out a brief, landspout-type tornado if thunderstorm forms on a boundary extending from the Devils Lake basin into the Red River Valley. Thunderstorm chances markedly increase starting late tomorrow night as storms move out of central ND into eastern ND, and eventually into northwest Minnesota predawn/early Friday morning. Timing and location of thunderstorms will depend on how the low level jet impinges upon the area. Some storms may be severe. Main hazards will be gusty winds and hail, with wind being more dominate hazard should storms move through as linear/thunderstorm complex, or hail if they are more discrete. As the upper ridge continues to shift east, a surface front also moves east toward central/eastern ND. This will provide focus for widespread thunderstorms to form upon potentially as early as early afternoon. Moderate to high instability is forecast amid weak shear, bringing chance for storms to become severe. Hail and gusty winds will be main hazards. Perhaps more widespread will be the flash flood potential. Rich moisture content, high instability, and parallel flow along the front will make for efficient and high rain rates that could train over an area. Widespread convection starting as early as early afternoon lasting into early evening contributes to potential widespread chance of flash flooding, especially over urban areas/cities/towns. Heat impacts within the very moist air mass may occur Friday before thunderstorms as well. Temperatures well into the 90s and dew points well into the 70s will contribute to apparent temperatures around 100, best chance in the Red River Valley as well as just ahead of the front. While Friday holds greatest chance for heat-related impacts, Thursday may see some heat- related impacts as wet-bulb globe temperatures approach 80, mainly south of I-94 corridor due to increasing humidity and ample sunshine amid temperatures in the low 90s. Saturday, the rich moisture air mass pushes east of our area, with upper flow flattening. There will still be enough moisture and instability to continue a low chance for scattered showers and thunderstorms. Upper pattern is then favored to stay either flattened/zonal or northwesterly. This will promote near average temperatures as well as near average to slightly below average precipitation. && .AVIATION /00Z TAFS THROUGH 00Z FRIDAY/... Issued at 643 PM CDT Wed Jul 2 2025 VFR conditions with a few showers going up in the KFAR area, but are quickly dissipating before lightning can form. Have VCSH but will monitor in the unlikely event something stronger develops. Other airports are pretty quiet with northeast winds less than 10 kts. Winds will become light and variable at many locations overnight, then pick up out of the southeast tomorrow with gusts up above 20 kts possible. && .FGF WATCHES/WARNINGS/ADVISORIES... ND...None. MN...None. && $$ UPDATE...JR DISCUSSION...CJ AVIATION...JR