Area Forecast Discussion
Issued by NWS Twin Cities, MN
Issued by NWS Twin Cities, MN
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774 FXUS63 KMPX 191936 AFDMPX Area Forecast Discussion National Weather Service Twin Cities/Chanhassen MN 236 PM CDT Sat Oct 19 2024 .KEY MESSAGES... - Well above average temperatures are expected through early next week. - Only a small chance for rain arrives late Tuesday into Wednesday with conditions remaining dry overall. && .DISCUSSION... Issued at 234 PM CDT Sat Oct 19 2024 A stalled frontal boundary has allowed a narrow swath of Minnesota from roughly Granite Falls through St. Cloud to Hinckley to pick up a couple hundredths to a tenth of an inch of precip over the past 6 hours. Otherwise, most have seen overcast skies through much of the day, with some clearing moving into far western Minnesota as of the 1pm hour. Temperature wise, central Minnesota has struggled to reach the low 50s while upper 60s and a few 70s are more common across southern Minnesota and western Wisconsin. Zooming in, there`s a fairly sharp gradient across the Twin Cities metro with upper 50s across northwestern Hennepin County to near 70 in southeastern Dakota County. In any case, clouds will continue to decrease through the evening hours as the boundary washes out over the region, setting the stage for ample sunshine and much warmer temperatures for the second half of the weekend. 850mb temperature anomalies of 10-15C are expected across the northern half of the CONUS tomorrow and Monday. BUFKIT soundings suggest we will be able to efficiently mix down that warmer air with highs tomorrow jumping into the low 80s, which is more than 20 degrees above normal. Records for daytime highs and record warm lows may be in jeopardy for all three of our climate sites into Monday. Despite the warmth and the return of some more appreciable southerly winds tomorrow, fire weather concerns remain fairly low with RH values bottoming out in the mid 30s as the southerly flow helps to pull in some Gulf moisture. Monday will need to be watched, however, with RH values forecast to fall below 30% across the southern third of Minnesota. Temperatures will once again be in the low to mid 80s, but records appear to be well out of reach (upper 80s). Things begin to shift by Monday night with a 500mb cutoff low ejecting out of the Rockies and into the Central Plains and a shortwave dropping down into the Dakotas. This associated cold front will sweep across Minnesota later in the day with a small chance of some showers across central Minnesota and western Wisconsin. The better chance for showers will lie closer to the surface low across northern Minnesota. An overnight uptick in PoPs is possible area wide with a LLJ kicking in through early Wednesday morning. Still, any meaningful precip will be hard to come by through the remainder of the period. Temperature wise, it will feel much more fall-like for at least a couple of days with highs settling back into 50s and 60s to end the work week. However, ensembles suggest we might not be done with the 70s just yet, with another warm up possible by next weekend. && .AVIATION /18Z TAFS THROUGH 18Z SUNDAY/... Issued at 1203 PM CDT Sat Oct 19 2024 Showers across central MN will continue moving northeast during the early afternoon. IFR cigs across western MN should improve throughout the next few hours with clearing skies this evening. Mid level clouds may linger into the overnight across WI and southern MN. Southwest winds will ease tonight, then increase again after 16Z with some gusts of 20 kts also possible. KMSP...The bulk of the showers should remain north of the terminal today with VFR conditions continuing. /OUTLOOK FOR KMSP/ SUN...VFR. Wind SW 10-15 kts. MON...VFR. Wind S 10-15 kts. TUE...VFR. Wind SW 5-10 kt && .MPX WATCHES/WARNINGS/ADVISORIES... MN...None. WI...None. && $$ DISCUSSION...Dye AVIATION...Borghoff