Watches, Warnings, Advisories
Drought Monitor
Sioux Falls NWS Weather Story
Forecast Discussion
Forecast Discussion
000 FXUS63 KFSD 302030 AFDFSD AREA FORECAST DISCUSSION National Weather Service Sioux Falls SD 230 PM CST Mon Jan 30 2023 .SHORT TERM...(This Evening through Tuesday) Issued at 228 PM CST Mon Jan 30 2023 Quiet conditions continue across the region with latest observations showing light W/SW winds and temperatures in the positive to negative single digits. While wind chills have improved since this morning, still have a vast majority of our area in the negative teens. Should see winds become a bit more breezy as direction turns southerly this evening, allowing a bit of WAA to infiltrate the region. Nonetheless, with mostly clear skies in the forecast and an expansive snow pack still in place, expect efficient radational cooling to occur overnight. As a result, have lows once again falling into the negative single digits to negative teens with wind chill values ranging from -30 to -20 degrees. Thus, like the past few nights, have gone ahead and issued an area wide Wind Chill Advisory from 00z to 16z after collaboration with neighbors. Otherwise, look for another quiet day to prevail Tuesday. With ample sunshine in place and W/SW winds, should see afternoon highs moderate a bit back into the single digits to teens. May even see a few locations across south central SD approach the lower 20s. .LONG TERM...(Tuesday Night through Monday) Issued at 228 PM CST Mon Jan 30 2023 We`ll see another cold push of air Tuesday night - however, unlike days past, do not expect wind chills to reach advisory levels. Rather, have overnight lows only dipping into the positive to negative single digits, with wind chills ranging from -15 to -5 degrees. Will still be cold nonetheless, so we encourage you to bundle up if heading outdoors! Expect temperatures to slowly moderate heading into mid week, with highs forecast to rise into the teens to lower 20s both Wednesday and Thursday. However, as alluded to in the previous discussion - should see another shot of arctic air return Thursday night as a Canadian high pressure drifts overhead. As a result, have overnight lows falling into the negative single digits to negative teens. Wind chills during this time are currently flirting with advisory criteria, so will continue to monitor trends in the coming shifts in the event that future headlines are needed. Otherwise, look for warmer temperatures to return heading into the weekend as strong mid-level WAA blossoms across the region. Currently have highs ranging from mid 20s to mid 30s, with the warmest values generally along and west of the James River. Lows will also be notably warmer, as values only fall into the teens. In regard to precipitation, long term guidance does hint at the potential for seeing some light snow early next week. However, since this potential remains in the far latter half of the extended period, do not plan to put much emphasis on anything just yet. Certainly something to keep an eye on in the coming days though. && .AVIATION...(For the 18Z TAFS through 18Z Tuesday Afternoon) Issued at 1124 AM CST Mon Jan 30 2023 VFR conditions are forecast to prevail this TAF cycle. Winds will transition to be out of south by the early evening hours, becoming marginally breezy throughout the overnight period. Otherwise, look for direction to turn southwesterly Tuesday morning. && .FSD WATCHES/WARNINGS/ADVISORIES... SD...Wind Chill Advisory from 8 PM this evening to 10 AM CST Tuesday for SDZ066>071. Wind Chill Advisory from 6 PM this evening to 10 AM CST Tuesday for SDZ038>040-050-052>065. MN...Wind Chill Advisory from 8 PM this evening to 10 AM CST Tuesday for MNZ081-089-090. Wind Chill Advisory from 6 PM this evening to 10 AM CST Tuesday for MNZ071-072-080-097-098. IA...Wind Chill Advisory from 8 PM this evening to 10 AM CST Tuesday for IAZ001>003-012>014-020>022-031-032. NE...Wind Chill Advisory from 8 PM this evening to 10 AM CST Tuesday for NEZ013-014. && $$ SHORT TERM...SST LONG TERM...SST AVIATION...SST