National Weather Service Text Product
AFOS product AFDBIS
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: AFDBIS
Product Timestamp: 2025-09-25 19:48 UTC
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697 FXUS63 KBIS 251948 AFDBIS Area Forecast Discussion National Weather Service Bismarck ND 248 PM CDT Thu Sep 25 2025 .KEY MESSAGES... - Above normal temperatures and dry weather expected through the weekend. - Breezy and dry conditions on Friday could lead near critical fire weather conditions. - Well above normal temperatures continue into next week, with low chances for rain returning by early to the middle of next week. && .DISCUSSION... Issued at 238 PM CDT Thu Sep 25 2025 Surface high pressure continues to move across the southern Saskatchewan bringing forth a cold front that has passed through the state. As a result high temperatures today are a few degrees cooler than yesterday, in the upper 60s to 70s across the state. Tonight, overnight low temperatures are forecast to drop down into the mid 40s to mid 50s across the state. High temperatures tomorrow will warm ahead of another cold front. Highs are forecast to warm into the upper 70s in the northwest to the mid 80s. A cold front will roll through the area tomorrow afternoon bringing forth breezy conditions across the state. Winds are forecast to sit around 20 mph with minimum relative humidity as low as 20 percent in the southwest, which could lead to a window of near critical fire weather conditions in the southwest. However, this will be all depend on the fuels status, areas like Adams county remain fairly green from recent rain while areas like Slope and Billings Counties continue to dry out and cure. Winds will die down after sunset as mixing reduces. Surface high pressure will pass over the area Saturday morning which could lead to low temperatures in the lower 40s maybe even upper 30s. This could result in possible patchy frost in low lying areas if low temperatures continue to trend downward. Upper level ridging will continue across the region through the weekend leading to above normal temperatures and dry conditions. High temperatures are forecast to sit in the 70s to lower 80s Saturday and warming into the 80s by Sunday. High temperatures in the 80s are forecast to persist through the middle of next week. Low temperatures could even approach record high lows by Tuesday of next week with lows in the 60s. Chances for showers and thunderstorms could return by early next week. Warm temperatures and increased dewpoints will lead to increased instability across the region. In addition the ensembles are showing an upper level trough under cutting the upper level ridge resulting in increase precipitation chances sometime early next week. However, the ensembles do differ on the timing of this system. && .AVIATION /18Z TAFS THROUGH 18Z FRIDAY/... Issued at 1223 PM CDT Thu Sep 25 2025 A cold front has passed through the region veering winds out the north earlier and now off to northeasterly. Winds will continue to veer out of the south by tonight. Another front is forecast to move through the region bringing in windy conditions across the state tomorrow afternoon. The wind will shift to westerly to northwesterly tomorrow as the front moves through. Skies will remain clear tonight as VFR conditions continue across the region. && .BIS WATCHES/WARNINGS/ADVISORIES... None. && $$ DISCUSSION...Johnson AVIATION...Johnson