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Area Forecast Discussion
Issued by NWS Twin Cities, MN
Issued by NWS Twin Cities, MN
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339 FXUS63 KMPX 101949 AFDMPX Area Forecast Discussion National Weather Service Twin Cities/Chanhassen MN 249 PM CDT Sat Aug 10 2024 .KEY MESSAGES... - Light rain possible tomorrow night into Monday along and south of the MN River Valley. - Next period of active weather to come Wednesday into Thursday next week. && .DISCUSSION... Issued at 246 PM CDT Sat Aug 10 2024 We will not accept any complaints about the weather today, with about as perfect weather conditions as one could expected for August 10th. The only real change for Sunday from today is we`ll have high pressure overhead on Sunday, which means no more gusty northwest winds. Sunday night, models continue to show a weak shortwave scooting across the northern Plains. There`s a pretty even split in both the deterministic models and CAMs with how far north light rain with this wave makes it, with about half looking like the GFS in bringing rain as far north as the MN River Valley and the other half like the ECMWF in keeping almost all of the QPF south of MN. Given where the HREF mean h5 speed max is located, along with where the href tacks a weak h7 low and surface warm front, the forcing would say the southern solutions are looking more likely for Sunday night. Instability is near non existent Sunday night, so this will be just a general shower threat, with no concerns for severe weather or excessive rainfall. Behind this wave on Tuesday, we`ll see h5 heights build as a ridge moves in from the west. This will give us dry weather for Tuesday, but this ridges slips off to our east on Wednesday, setting the table for a more active period of weather Wednesday and Thursday. There`s still lots of spread with the timing of this feature, so it`s hard to say much more than there will be periods of showers and storms, with the best chance looking to come Wednesday night. At the very least, it doesn`t look like a favorable setup for a significant severe weather threat, but with pwats again increasing over 1.5" and some form of a LLJ being in place, some localized heavy rain could be possible. For the end of next week, we could see some lingering showers on Friday, but for the most part, it looks like we`ll be switching around to a northerly surface flow, with the weather trending drier and pleasant for next weekend. && .AVIATION /18Z TAFS THROUGH 18Z SUNDAY/... Issued at 1226 PM CDT Sat Aug 10 2024 We`re on the diurnal upswing with both wind speeds and cloud cover now. Both of these drop off with the setting sun and with the high moving overhead for Sunday, we will not see a return of gusty winds, with the cu field on Sunday being confined to eastern MN and western WI. KMSP...No additional concerns. /OUTLOOK FOR KMSP/ MON...VFR. Wind SE 5 kts. TUE...VFR. Wind SE 5 kts. WED...VFR. Chc -SHRA/TS. Wind SE 5-10 kts. && .MPX WATCHES/WARNINGS/ADVISORIES... MN...None. WI...None. && $$ DISCUSSION...MPG AVIATION...MPG