Area Forecast Discussion
Issued by NWS Topeka, KS
Issued by NWS Topeka, KS
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568 FXUS63 KTOP 230436 AFDTOP Area Forecast Discussion National Weather Service Topeka KS 1036 PM CST Sat Nov 22 2025 .KEY MESSAGES... - Fog may redevelop in the overnight hours toward Sunday morning - Mild and dry Sunday, rain returns Monday and Monday night - Cooler air moves in Tuesday through Thursday, with the next chance for precipitation late in the week. && .DISCUSSION... Issued at 120 PM CST Sat Nov 22 2025 Morning stratus and fog have slowly shifted southward today, thanks in part to a weak shortwave trof in the upper flow that has moved into eastern Missouri. The large upper low that brought significant moisture to the west coast has slid southeastward over Baja California at it slowly advances east. Recent rains on Friday, coupled with sunshine and light winds today, should leave enough moisture in the boundary layer overnight for additional chances for fog development - particularly in low lying areas and near bodies of water. Chances for visibilities of less than a half mile are more prevalent near the Kansas river valley, and will carry areas of fog there with patchy elsewhere. A little more mixing and drier air may forego fog as you go northward toward the Nebraska border. The upper ridge on the east side of the low moves over the state on Sunday, and, once any morning fog burns off, should bring another day of above normal high temperatures and light winds. The track of the west coast low lifts it across Kansas and weakens as it does so, but not before bringing an area of rain into the forecast area Sunday night into Monday, with some light wrap around rain chances continuing Monday night. CAPE is negligible for most of the time, although could be enough for a rumble of thunder or two on Monday afternoon. Chances for a quarter inch of rain or less across eastern Kansas are about 40% with very few higher outliers. The cold front behind the low moves in for Tuesday, reinforced by an upper trof near the Canadian border advecting more cooler air southward. Highs are still in the 40s, which is below our normal high around 50, but not significantly so. Winds on the back side of the surface high swing back around from the south on Friday and would suggest warmer temperatures, followed by increasing uncertainty on the track of the next system for next weekend. Currently have rain chances on Saturday, but the upper trof is large and dynamic, with track likely to shift before then. Worth noting that this pattern would bring a cold shift toward the end of the month. && .AVIATION /06Z TAFS THROUGH 06Z MONDAY/... Issued at 1036 PM CST Sat Nov 22 2025 VFR initially at terminals before areas of fog are anticipated to develop between 08-10Z with some uncertainty of onset based on inconsistencies amongst short term guidance. This is likely based on winds just off the sfc being slightly more mixed initially, however should become most probable for IFR to LIFR visibilities to develop from 10-14Z at sites. The fog should gradually lift aft 15Z as southerly winds increase to just under 10 kts. && .TOP WATCHES/WARNINGS/ADVISORIES... Dense Fog Advisory until 10 AM CST Sunday for KSZ022-KSZ023- KSZ026-KSZ036-KSZ037-KSZ038-KSZ039-KSZ040-KSZ054-KSZ055-KSZ056- KSZ058-KSZ059. && $$ DISCUSSION...Craven AVIATION...Prieto