FXUS63 KBIS 192143 AFDBIS Area Forecast Discussion National Weather Service Bismarck ND Issued by National Weather Service Grand Forks ND 443 PM CDT Thu Mar 19 2026 .KEY MESSAGES... - Well above average temperatures through the rest of the week over most locations. Possible record setting, especially over western and southern locations. - Dry through remainder of work week, with precipitation chances returning Saturday/Saturday night. - Cooler temperatures to start the upcoming week. && .DISCUSSION... Issued at 442 PM CDT Thu Mar 19 2026 Near critical fire weather conditions are expected across southwestern North Dakota through the late afternoon. For tonight, the ongoing melting of snowpack lingering across the north central into eastern North Dakota and lighter winds could allow for another round of patchy fog to develop tonight into Thursday morning. Similar conditions are expected to persist Friday and Saturday as broad ridging persists across the Northern Plains, with highs into the 60s and 70s and gusty west to northwest winds in the afternoon. The winds are expected to become more widespread on Saturday, as a cold front is progged to dip south across the region some time during the day. Ensemble members remain a little split on the timing of the front, though notably less so than the previous forecast cycles. A slower moving front is currently favored by a majority of ensemble members (60% of them), which will allow for highs across the north to remain broadly in the 50s and 60s through Saturday afternoon. The slower solution would also delay the onset of lighter precipitation (20 to 40 percent chance) on Saturday to the afternoon and evening, which would favor a rain-snow mix across the north. This scenario is reflected in the NBM. A minority cluster also exists (approximately 40 percent of the ensemble members), which still champions a faster moving front, corresponding to a scenario that would promote cooler highs in the 30s and 40s across the north. The cooler temperatures in that scenario, and the early onset of precipitation, would allow more snowfall across the north in that case. Overall the precipitation amounts should be light, with only a light dusting to a few tenths of an inch of snow (highest in the Turtle Mountains) anticipated at this time. Cooler, more seasonable temperatures are expected on Sunday on the back side of the cold front, with highs from the lower 30s north central to the upper 40s in the southwest. A return to southwesterly flow aloft late Sunday through early next week will return the forecast to a dry and warming pattern. The degree of warming is still a little uncertain as the ensembles struggle to resolve the breakdown of the ridge ahead of a decent wave moving in later in the week. With this wave, chances for precipitation and gusty winds are anticipated, though the location and degree of either remain uncertain this far ahead of time. && .AVIATION /18Z TAFS THROUGH 18Z FRIDAY/... Issued at 1230 PM CDT Thu Mar 19 2026 VFR ceilings and visibility is mainly expected throughout the 18Z TAF period. Patchy fog and MVFR to IFR ceilings are expected to develop tonight through Thursday morning in the north central and eastern North Dakota where melting snowpack can be found. Have added MVFR ceilings to KJMS, though confidence is too low to include visibility reductions due to fog at this time. Gusty west winds are expected through this afternoon, with sustained speeds up to 25 knots and gusts up to 35 knots. Winds should diminish through the evening, becoming light and variable overnight. && .BIS WATCHES/WARNINGS/ADVISORIES... None. && $$ DISCUSSION...CJS AVIATION...Adam