


Area Forecast Discussion
Issued by NWS Grand Forks, ND
Issued by NWS Grand Forks, ND
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596 FXUS63 KFGF 250321 AFDFGF Area Forecast Discussion National Weather Service Grand Forks ND 1021 PM CDT Sun Aug 24 2025 .KEY MESSAGES... - The probability for widespread hazardous weather is low over the next 7 days. && .UPDATE... Issued at 1021 PM CDT Sun Aug 24 2025 With temps so far falling at the forecast rate frost potential seems low enough to forgo an advisory for tonight through afew areas will likley still drop into the upper 30s so take that into consideration if you have any especially sensitive plants. UPDATE Issued at 609 PM CDT Sun Aug 24 2025 Still monitoring frost potential for tonight but with dewpoints at peak heating barely dipping below 40 and less than ideal radiational cooling conditions as winds likely stay 3-6mph would thing only traditional cold spot like the bogs near the red lakes would get near or below the 36 mark. With that said still a 20 percent chance for some patchy frost but continuing to hold on issuing any related products. && .DISCUSSION... Issued at 231 PM CDT Sun Aug 24 2025 Northwesterly flow and surface high pressure will remain over the forecast area through tonight and Monday, with only some slight movement to the southeast by Monday night. This will keep the region cooler than average with scattered to broken daytime cumulus, although the sprinkles we saw yesterday afternoon look like they will stay to the east. The biggest question will be how low will temperatures go tonight with the surface high overhead and most of the cloud cover expected to dissipate. Continue to include the 25th percentile of the NBM, which takes our typically colder areas into the upper 30s. Lower percentiles would get us closer to the 36 mark needed for frost advisory, and the NBM shows about a 30 percent chance of that happening in the boggy areas of MN. At this point, given current dew points in the 40s will lean towards the 25th percentile rather than going lower and will think our chances for frost are low. Cool temps continue into Tuesday as the surface high slowly moves southeast and winds return to a more southwesterly direction. Models are showing a signal for a reinforcing shortwave moving down into the Great Lakes, bringing a few rain showers to the Lake of the Woods region but impacts look low. Temperatures warm back up to seasonal values for the later half of the work week as ridging builds in. Some of the ensemble members have a signal for some sort of ridge riding shortwave and some weak precip chances as we head into the weekend, but predictability is low. && .AVIATION /03Z TAFS THROUGH 06Z TUESDAY/... Issued at 1021 PM CDT Sun Aug 24 2025 VFR conditions forecast with minimal impact to area operations. Skies have cleared for the night with saturating sfc parcels likely leading to some scattered ground fog through not impactful outside of ditches and exceptionally low areas. Some scattered CU expected in the afternoon Monday with ceilings around 5000-6000. Winds NW in the afternoon before flipping to S/SW as high pressure passes over the area late in the eveing towards the end of the TAF period. && .FGF WATCHES/WARNINGS/ADVISORIES... ND...None. MN...None. && $$ UPDATE...TT DISCUSSION...JR AVIATION...TT