Area Forecast Discussion
Issued by NWS Grand Forks, ND
Issued by NWS Grand Forks, ND
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440 FXUS63 KFGF 081708 AFDFGF Area Forecast Discussion National Weather Service Grand Forks ND 1208 PM CDT Sun Mar 8 2026 .KEY MESSAGES... - Much warmer this weekend with elevated fire weather potential. - Snow chances return for the workweek. && .UPDATE... Issued at 625 AM CDT Sun Mar 8 2026 Cloud cover continues to spread into the area, with a few radar returns noted; however, most observation sites across the area remain dry. Winds continue out of the west to southwest this morning, with a few gusts to near 20 mph. Winds will increase by mid morning as low level winds increase and mix to the surface. Gusts up to 40 mph are possible this afternoon, especially west of the Red River. UPDATE Issued at 1146 PM CST Sat Mar 7 2026 Vort digging down into eastern ND this evening has brought some light rain showers to portions of the CWA. Most locations have seen sprinkles at best, but a few spots got a couple of hundredths of rain. Southwest to west winds have bumped up temps above freezing and that should continue into the overnight, even as another weak vort moving through brings the possibility of a few more rain showers according to the CAMs. Better precipitation chances with the cold front late tomorrow into tomorrow night, so increased POPs a bit higher than the NBM. Some snow mixing in is possible with the colder air arriving tomorrow evening, but amounts look light and impacts minimal at this point. && .DISCUSSION... Issued at 1254 PM CST Sat Mar 7 2026 ...Synopsis... Surface analysis this afternoon indicates a surface low pressure over central Saskatchewan with an attached warm front stretching from north to south over the Red River Valley. Behind this front, temperatures are quickly increasing to above freezing. This should continue to expand through the afternoon as warm air advection overcomes radiational processes from the current snowpack. As we progress into the evening, warm air advection aloft will intensify isentropic ascent, bringing a swath of light to moderate rainfall. This will be fairly quick moving and should remain rain thanks to the warm temperatures, although there is the low chance for some snow to mix in depending on the variability of temperature profiles. Regardless, impacts will be very limited as accumulating snow is very unlikely and rain accumulations should range generally between 0.01-0.05". Snowpack erosion continues through the week as above normal temperatures continue. Frequent chances for rain/snow arise through next week as we remain with elevated 500mb flow across the region. High uncertainty exists towards the end of the period as the cutoff low continues to generate very high model dispersion in trajectory of the flow. ...FIRE WEATHER CONCERNS... With the current warming pattern through the weekend, we do begin to turn our attention to fire weather. The highest confidence is in winds with a modest confidence in minimum relative humidity. Strong westerly winds between 20-25 mph will exist through Sunday afternoon with occasional gusts approaching 35-40 mph. For today, winds will remain mostly southwesterly with a shift to westerly after sunset. Relative humidity values will remain below 50% in regions without any meaningful snowpack. Based on satellite, this is pretty much a west to east line of Valley City to Park Rapids and all points southward. The warmest spots tomorrow could fall as low as the 30s. With the elevated wind speeds expected through tomorrow, near critical fire weather conditions may arise in the southern portions of our area. Finer fuels should be the primary concern as ERC values remain generally between 20-40% in the forecast through tomorrow based on NRCC percentile plots and HRB values sit at 30. && .AVIATION /18Z TAFS THROUGH 18Z MONDAY/... Issued at 1206 PM CDT Sun Mar 8 2026 The primary aviation impacts for the TAF period will come from low level wind shear and periodic wind gusts to 30-35 knots. This afternoon, westerly winds will continue with gradually falling ceilings, but will maintain VFR status. This will continue into the evening hours, with intermittent chances for rain. Impacts from rain should remain minimal and isolated to brief reductions in visibility to MVFR. Snow may mix in at times and continue to reduce visibility, but again aviation impacts should remain fairly limited. Around this time frame, a strong low level jet will be sweeping through bringing a period of low level wind shear. All of this should exit the region just after midnight, giving way to VFR conditions and no aviation impacts. && .FGF WATCHES/WARNINGS/ADVISORIES... ND...None. MN...None. && $$ UPDATE...Lynch/JR DISCUSSION...Perroux AVIATION...Perroux