Area Forecast Discussion
Issued by NWS Grand Forks, ND
Issued by NWS Grand Forks, ND
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796 FXUS63 KFGF 081153 AFDFGF Area Forecast Discussion National Weather Service Grand Forks ND 653 AM CDT Wed Jul 8 2026 .KEY MESSAGES... - Level 1 out of 5 risk Thursday overnight for the Devils Lake basin. Isolated severe storms possible. - Dangerous heat this weekend into early next week. && .UPDATE... Issued at 544 AM CDT Wed Jul 8 2026 The higher end scenerio of severe storms and very heavy rainfall overnight did not occur. That is a good thing. Flood watch was cancelled early. A few showers yet around SE ND into WC MN early this morning, otherwise a dry day today with mix of cloud and sun. && .DISCUSSION... Issued at 156 PM CDT Tue Jul 7 2026 ...Synopsis... Ensembles are in good agreement with the large scale pattern over the next 7 days, depicting the current zonal flow to transition into a sort of omega block pattern with ridging across the central CONUS. Details less certain of course. ...Severe and Flash Flood Potential... Water vapor imagery indicates an upper level trough across Montana slowly propagating eastward. As this feature continue to propagate eastward this evening, anticipate a strong 850mb jet to develop with nose of this feature into the southern Red River Valley. Currently, showers are developing along a 700mb boundary across central North Dakota, with additional activity associated with an MCV across the southern RRV and west central Minnesota. This activity will continue eastward, although impacts will be minimal. Later this evening, the 850mb front will shift north as the low level jet increases. Surface instability will remain across South Dakota, but with instability along the elevated front and stronger warm air advection there is a very high chance for elevated thunderstorms along and south of I-94/Hwy10. Severe Potential...Freezing levels are near 15 Kft, but given the elevated nature of the storms potential exists for near severe to severe hail given MUCAPE near 2000 J/Kg and effective shear near 50 knots. Potential also exists for severe wind given the anticipated strong low level bulk shear, even with the storm being elevated. The elevated nature of the storms will limit severe potential, but will not eliminate severe potential. Excessive rainfall/flash flood potential...Anticipate heavy rainfall rates given PWATS near 1.75 inches along with soundings indicating efficient rainfall rate processes (plus high freezing level). Given the west to east position of the elevated front, potential also exists for training storms. CAM guidance indicating mean rainfall 1-2 inches with max rainfall near 5 inches. Given all of this, plus the rain that fell yesterday (1-2 inches) across west central Minnesota, will issue a flood watch for flash flood potential (10p-7a). ...Dangerous Heat... As the ridging builds into the weekend, anticipate max temperatures 95F-100F (maybe a bit warmer) across much of the region Saturday through Monday. Heat risk, wet bulb globe temp, and heat index values all indicate a dangerous heat episode. && .AVIATION /12Z TAFS THROUGH 12Z THURSDAY/... Issued at 651 AM CDT Wed Jul 8 2026 A mix bag of sky cover out there this morning predominately mix of high and mid clouds and that is the trend today before clearing takes hold later today and especially tonight. Light winds north to 10 kts today and then near calm tonight. May have some local fog tonight. && .FGF WATCHES/WARNINGS/ADVISORIES... ND...None. MN...None. && $$ UPDATE...Riddle/JR DISCUSSION...TG AVIATION...Riddle