Area Forecast Discussion
Issued by NWS Bismarck, ND
Issued by NWS Bismarck, ND
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617 FXUS63 KBIS 180916 AFDBIS Area Forecast Discussion National Weather Service Bismarck ND 316 AM CST Tue Nov 18 2025 .KEY MESSAGES... - 20 percent chance of light rain south tonight into Wednesday morning. - Above average highs mainly in the 40s to low 50s this workweek, though highs in the upper 30s are forecast periodically in the northeast and in the Turtle Mountains. - Colder temperatures and above average precipitation are favored for the last week of November. && .DISCUSSION... Issued at 316 AM CST Tue Nov 18 2025 A little light rain continues passing through central North Dakota early this morning, with light returns approaching the far northwest. However, temperatures remain in the mid 30s for central parts of the state. Therefore, the probability for freezing rain this morning remains low in the central. The far northwest, on the other hand, is colder. But returns up there appear pretty light with little evidence of anything reaching the surface. As such, not expecting much more than flurries or sprinkles in the northwest this morning. Either way, any light precipitation within the state should end towards sunrise, or shortly thereafter. Mostly dry conditions are then expected for the day today before another shortwave potentially brings light rain passing from west to east tonight and into Wednesday morning. Lows where mentionable PoPs are present generally remain above freezing. So unless skies clear prior to rain falling (not the favored solution at this time), freezing rain potential tonight seems pretty low as well. For the remainder of the week, mostly dry zonal to northwesterly flow aloft is forecast. Without a particularly cool airmass in place, this will maintain above average temperatures for most locations, most days, as highs generally remain in the 40s to low 50s. Cooler highs in the upper 30s are forecast in the northeast and Turtle Mountains at times. However, average highs in those areas are already less than 35 degrees, while areas further west and south are closer to 40 degrees. Lows are also expected to remain above average and mostly in the upper 20s to mid 30s, though are progged to become a bit cooler at for Wednesday and Thursday nights. For next week, trends favor much cooler conditions next week, though NBM ensemble temperature spreads remain high. In addition, the CPC also continues to favor above average precipitation. Bear in mind, above average precipitation for this time of of year is only around 15 hundredths of liquid equivalent, or approximately any system that drops 1 to 3 inches of snow. && .AVIATION /06Z TAFS THROUGH 06Z WEDNESDAY/... Issued at 944 PM CST Mon Nov 17 2025 VFR conditions to begin the 06Z TAF period and VFR conditions expected through much of the period at all TAF sites. Low pressure over the central and southern portions of the Northern Plains will track east overnight. North Dakota will remain mostly cloudy through the period but most of the precipitation will remain south of the ND Border. There is an area of light rain showers over central ND that will move little overnight and may change over to mixed precipitation with mostly a rain snow mix. However there is a small chance (20%) that some light freezing rain could mix in with the precipitation. Ceilings are currently forecast to remain VFR through the period at KXWA, KMOT and KJMS. KDIK and KBIS are showing low to medium probabilities (20-40 percent) for MVFR ceilings Tuesday morning. KDIK could also see some patchy fog late tonight into Tuesday morning. Easterly surface flow 5-15kts will shift southerly by Tuesday morning at all TAF sites. && .BIS WATCHES/WARNINGS/ADVISORIES... None. && $$ DISCUSSION...Telken AVIATION...TWH