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Area Forecast Discussion
Issued by NWS Twin Cities, MN
Issued by NWS Twin Cities, MN
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973 FXUS63 KMPX 231733 AFDMPX Area Forecast Discussion National Weather Service Twin Cities/Chanhassen MN 1133 AM CST Sun Feb 23 2025 .KEY MESSAGES... - Warm up continues with highs in the 40s and low 50s for most of this week. - A few chances for light rain/snow next week. Best chance currently is Tuesday night. && .DISCUSSION... Issued at 252 AM CST Sun Feb 23 2025 Mid-level clouds over much of MN and WI have slowed the fall of temperatures tonight. Portions of western WI and eastern MN have managed to cool into the mid to upper 20s with more breaks in the clouds. Farther west, temperatures are still largely in the 30s with even DXX and CNB above 40 early this morning. Radar is also showing returns within these clouds over western MN with the AWOS in MVE even reporting light drizzle. However, most of the precip is evaporating before it reaches the ground due to dry low-levels. Most of the clouds should move to our east later this morning, giving way to at least partly sunny skies. This will allow for another warm late February day. In fact, highs throughout this week will be well above normal with at least 40s for the entire area. Southwestern MN and areas along the Buffalo Ridge will see the warmest highs with values near or above 50. In fact, for the projected warmest days of the week (Monday and Tuesday) places in this region could even get close to 60. Due to temperatures overachieving Saturday afternoon, have blended in the 75th and even some 90th percentile of the NBM for high temperatures through Wednesday. Overnight lows are also forecast to be quite warm; largely above freezing tonight and in the upper 20s to lower 30s Monday through Thursday night. As for precipitation throughout this week, several shortwaves are forecast to pass through the Northern Plains/Upper Midwest within the northwesterly flow. The first wave will arrive Sunday night, but should mostly be off to the northeast limiting flurry chances to our WI counties. A more substantial shortwave looks to arrive during Monday. While moisture is limited with this feature, models do develop light QPF over the southern half of MN. The HRRR even shows what looks like cellular precip signatures with some non-zero MUCAPE nearby. Perhaps southern MN could see some building cumulus and maybe even a rumble of thunder Monday afternoon? We`ll have to see. Currently have 20-30% PoPs Monday for much of the area due to concerns about areal coverage. Guidance suggests the best chance for precip during the period will be associated with another shortwave Tuesday night into Wednesday. The GFS, ECMWF, and GEM all show weak surface cyclogenesis occurring near southwestern MN with an area of precip forming north of the low Tuesday night. Timing of when the precip occurs will be important as temperatures cool overnight bottoming out within a few degrees near freezing. Because of this, rain that happens initially could see at least a partial changeover to snow by sunrise Wednesday. This is most likely across western WI where perhaps a dusting of snow is possible Wednesday morning. Precip should change back over to all rain before exiting to our east by Wednesday afternoon. Friday`s forecast will also be interesting to monitor as guidance favors an Alberta Clipper passing through the Upper Midwest. While it currently looks like a majority of the precipitation will be off to our north and east, the bigger signal for us is strong winds following the passage of a cold front. Numerous EPS members have wind gusts exceeding 40 mph for MSP later Friday with even a few members near or above 50 mph. This will have to be watched as winds this strong would require headlines and present potentially hazardous weather. Cold air will also follow the front, which should remain over the region through most of next weekend. We also look to dry out for the weekend as upper-level ridging approaches from the west. Though, we may not stay dry for too long as long-range ensembles hint "troughiness" somewhere in the central CONUS during next week. && .AVIATION /18Z TAFS THROUGH 18Z MONDAY/... Issued at 1128 AM CST Sun Feb 23 2025 VFR conditions expected throughout this duration. Cloud decks will waver between 080-120 through Monday morning. Ceilings are scattering out at present, but will return this afternoon and remaining in place through tonight. The main issue will be stronger winds tonight into Monday morning, including LLWS this evening through most of the overnight hours in response to a low-level trough moving through the region. While surface winds remain SW, strong westerly winds within the lowest 2 kft will increase to 35-45kts, producing LLWS conditions during the evening through early morning hours. KMSP...Main issue will be LLWS associated with the passage of a low-level trough. At the surface, the strongest winds will be nearly down 22, possibly creating marginal crosswind concerns for overnight traffic. /OUTLOOK FOR KMSP/ TUE...VFR. Chc MVFR cigs. Wind NW 5-10 kts bcmg SW. WED...VFR. Chc MVFR/-RA early. Wind NW 10-15 kts. THU...VFR. Wind NW 5-10 kts. && .MPX WATCHES/WARNINGS/ADVISORIES... MN...None. WI...None. && $$ DISCUSSION...CTG AVIATION...PV