048 FXUS63 KTOP 072318 AFDTOPArea Forecast Discussion National Weather Service Topeka KS 618 PM CDT Tue Oct 7 2025
.KEY MESSAGES...
- Cooler tonight and tomorrow, followed by another warming trend through the weekend.
- Very low (10%) rain chances Thursday and Friday mornings, but otherwise dry through the weekend.
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.DISCUSSION... Issued at 231 PM CDT Tue Oct 7 2025
The shortwave trough that brought yesterday`s cold front is moving away to the northeast, allowing morning rain and clouds to clear across our area. Behind the front, temperatures are still in the 60s despite plenty of sun, with northerly winds advecting drier dewpoints southward. Surface ridging will stay in place for the next 36 hours, keeping cool temperatures around. With clear and calm conditions, lows tomorrow morning will fall into the low/mid 40s. This may allow for some areas of fog to develop, most likely in the usual low-lying areas of northeast Kansas. High temperatures warm a bit tomorrow, but still stay slightly below average.
We`ll warm back up Thursday into the weekend as upper ridging again takes hold across the middle part of the country. A rather amplified pattern with upper lows over both coasts will prevent the ridge axis from moving too much until later in the weekend. So we`ll see a return to temperatures in the 80s Friday through Sunday, with overnight lows also 5-10 degrees above average. Can`t completely rule out a few showers Thursday morning and again Friday morning with a pair of weak mid-level perturbations. However moisture and forcing for ascent will be limited, keeping any rain chances around or below 15 percent. By early next week, we may begin to see some slightly better rain chances as the ridge axis shifts to our east and mid-level flow becomes southwesterly ahead of the next trough. However there is still a lot of uncertainty with the overall evolution of individual shortwaves by this point, keeping confidence low on the details.
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.AVIATION /00Z TAFS THROUGH 00Z THURSDAY/... Issued at 618 PM CDT Tue Oct 7 2025
VFR conditions dominate, outside of some shallow fog near sunrise Wednesday morning. KTOP and KMHK are most likely to be impacted, but uncertainty remains in how widespread and dense fog will be. Any fog dissipates by 13z or so.
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.TOP WATCHES/WARNINGS/ADVISORIES... None.
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DISCUSSION...Reese AVIATION...Flanagan
NWS TOP Office Area Forecast Discussion