


Area Forecast Discussion
Issued by NWS Grand Forks, ND
Issued by NWS Grand Forks, ND
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296 FXUS63 KFGF 142030 AFDFGF Area Forecast Discussion National Weather Service Grand Forks ND 330 PM CDT Mon Jul 14 2025 .KEY MESSAGES... - There is a level 1 out of 5 risk for severe storms this evening into tonight. The main hazards will be damaging wind gusts, hail, and flash flooding. - There is a level 1 of 5 risk for severe thunderstorms for portions of west central Minnesota Tuesday afternoon. Hazards could include damaging wind gusts and hail. && .DISCUSSION... Issued at 330 PM CDT Mon Jul 14 2025 ...Synopsis... Zonal H5 flow prevails through the next several days, with ridging supported in the southeast CONUS and a deep H5 trough over the Hudson Bay. Several shortwaves traverse the flow this week, with the first bringing showers and thunderstorms to the area this afternoon through around Wednesday morning. Very warm temperatures today fall towards normal values heading into the middle part of this week. The active shortwave pattern prevails into the end of the week and into the weekend; however, the best chances for precipitation will be this afternoon into Tuesday. ...Severe Thunderstorms Possible Today and Tuesday... MUCAPE values this afternoon and evening continue to climb into the 1500 to 2000 J/Kg range. Cooler air at the surface and very warm 850mb temps are ensuring strong capping for most locations. A frontal boundary continues to lift north, however, which will provide an axis of development in the 850mb layer and up, with favorable conditions for elevated clusters of storms. The primary risk will be hail and flash flooding; however, damaging wind gusts could be a risk as well, mainly during the mid to late afternoon. With PW in the 1.5 to 2.0 inch range, and a slow-moving boundary, we need to consider the possibility of flash flooding. The front moves slowly southward on Tuesday as the shortwave pushes across the area. Similar expectations exist for the environment Tuesday afternoon and evening, with the risk area shifting slightly to the southeast. There remains about a 30 to 40 percent chance of 1 inch or more precipitation this evening and Tuesday. && .AVIATION /12Z TAFS THROUGH 12Z TUESDAY/... Issued at 1250 PM CDT Mon Jul 14 2025 VFR conditions prevail at all sites this afternoon, with MVFR and intermittent IFR conditions possible later this evening and overnight. Showers and isolated thunderstorms early this afternoon will diminish, with additional thunderstorms expected later this afternoon, evening, and overnight. A few of these storms could become severe. Winds remain out of the east to northeast through the period, with an increase in gusts heading into Tuesday morning. && .FGF WATCHES/WARNINGS/ADVISORIES... ND...None. MN...None. && $$ DISCUSSION...Riddle AVIATION...Lynch