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Area Forecast Discussion
Issued by NWS Twin Cities, MN
Issued by NWS Twin Cities, MN
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800 FXUS63 KMPX 230514 AFDMPX Area Forecast Discussion National Weather Service Twin Cities/Chanhassen MN 1114 PM CST Sat Feb 22 2025 .KEY MESSAGES... - Warm up continues with highs in the 40s and low 50s tomorrow through Tuesday. - A few chances for light rain/snow next week. Best chance currently is Tuesday night. && .DISCUSSION... Issued at 318 PM CST Sat Feb 22 2025 Many locations have warmed above freezing for the first time since February 3rd. This marks the longest running streak of below freezing temperatures since the winter of 2019 when we saw 31 days in a row (at MSP Airport). Interestingly though, the 2019 stretch occurred after the infamous Polar Vortex from that January... the 31 days lasted from February into March. This recent stretch of cold weather is only the 92nd longest stretch of AOB 32 degrees (since the period of record began in 1872). Despite some cloud cover across the region, you can see a retreating line of snow cover on satellite throughout the day, especially in SW MN along the Buffalo Ridge. Snow depth was already limited in that region, but a mix of the late February sun angle and SW flow over the Ridge has allowed temperatures to soar into the upper 40s and eat away at any snow left on the ground. Thermal ridging will continue to build across the western half of the CONUS as we head into next week, allowing much of the Northern Plains to climb 10-20 degrees above normal for this time of year. A series of shortwaves will bring several chances for light rain/snow this week, with the best setup looking to be Tuesday night into Wednesday. QPF has remained around a tenth or less, and rain is favored. More of a wintry mix could occur overnight as temperatures drop off to the north of I-94. There could be more of a drastic gradient in temperatures this week than models suggest, with more cloud and snow cover to the north and an already snow-free ground across much of SW MN. Temperatures will start to cool closer to normal by this weekend following the passage of another decent looking Clipper to the north. && .AVIATION /06Z TAFS THROUGH 06Z MONDAY/... Issued at 1058 PM CST Sat Feb 22 2025 For STC, CAMs have been persistent on fog developing between 12-16Z this morning. However, a modestly saturated boundary layer in forecast soundings and projected mid-level cloud cover cast uncertainty into how much fog will develop. Have went with a 3 hour period of MVFR visibilities to show the possibility of some patchy fog. Elsewhere, VFR is expected the entire period with mid to high-level clouds. Light south-southwesterly winds tonight will increase to 5-10 knots Sunday afternoon. Westerly LLWS of 40-45 knots is expected for most MN terminals late Sunday evening. KMSP...Have omitted any westerly wind shear mentions in the TAF for Sunday night. Forecast values for wind shear generally look to be too low. /OUTLOOK FOR KMSP/ MON...VFR. Wind W 10-15 kts. TUE...VFR. Chc MVFR cigs. Wind NW 5-10 kts bcmg SW. WED...VFR. Chc MVFR/-RA early. Wind NW 10-15 kts. && .MPX WATCHES/WARNINGS/ADVISORIES... MN...None. WI...None. && $$ DISCUSSION... AVIATION...CTG