Area Forecast Discussion
Issued by NWS Goodland, KS
Issued by NWS Goodland, KS
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410 FXUS63 KGLD 272044 AFDGLD Area Forecast Discussion National Weather Service Goodland KS 144 PM MST Thu Nov 27 2025 .KEY MESSAGES... - Strong northerly winds will develop in the wake of an Arctic cold frontal passage early Sat morning, strongest (30-40 G 55 mph) between sunrise and noon Sat. A few snow showers may accompany the frontal passage early Sat morning (prior to sunrise). - Below normal temps this weekend and early next week, coldest on Sun-Mon when highs will struggle to reach the freezing mark and morning lows may approach the single digits with wind chill readings as low as 0 to -5F. - Light accumulating snow possible late Sunday into Monday. && .SHORT TERM /THROUGH SATURDAY NIGHT/... Issued at 133 PM MST Thu Nov 27 2025 Today-Tonight: Pleasant/benign weather for Thanksgiving. Synoptic subsidence in the wake of an amplifying trough (downstream over the eastern CONUS) and a modest upper level ridge approaching from the west will foster light winds, near- average temps and mostly clear skies.. aside from occasional bouts of cirrus in NW flow aloft. Friday: An upper level wave moving ashore the Pacific Northwest (today) will progress east toward the northern Rockies (tonight), then abruptly dig SSE toward the central Rockies (Fri) -- after an interaction with shortwave energy progressing rapidly S-SSE through British Columbia/Alberta -- fostering the development of a broad lee cyclone in CO. Southerly low-level flow / warm advection on the eastern periphery of the developing cyclone will foster a modest warming trend with highs in the upper 40s to mid 50s, coolest in eastern / lower elevation portions of the area where a shallow cooler airmass will persist into the afternoon and low ceilings/stratus may develop beneath pervasive upper level cloud cover / cirrus. Friday night-Sat night: Guidance continues to indicate that the aforementioned upper wave will dig SSE to/near the OK Panhandle (Fri night).. then rapidly progress east (broad lee cyclone, in tow) across the Central/Southern Plains on Sat. The progressive nature of the cyclone and the Tri-State area`s position relative to the upper wave and cyclone suggests a low overall potential for precipitation in the NWS Goodland county warning area. Guidance presently suggests 2 distinct periods in which light precipitation could develop: [1] light rain prior to the cold frontal passage Friday evening (~00-06Z Sat) -- as the upper level wave digs SSE through WY-CO, most likely near the Tri-State border area and [2] snow/showers coincident with the cold frontal passage around or shortly before sunrise (~09-12Z) Saturday -- during a fleeting period of strong low-level frontogenesis, mainly in southwest NE and adjacent KS border counties. From a hazardous weather standpoint, strong northerly winds in the wake of the front are/remain the primary concern. Strong cold advection and abrupt pressure rises in the wake of the Arctic front will at least partially coincide with diurnal heating.. between sunrise and noon Saturday.. when forecast soundings indicate ~35-45 knot northerly low-level flow will be present within a shallow (surface to 3,000 ft AGL) mixed layer. If this is the case, one would expect sustained winds ~30-40 mph and gusts up to ~55 mph. From a prior experience standpoint, in the context of an abrupt Arctic cold frontal passage, guidance generally tends to under-do wind.. at onset, in particular. Either way, guidance indicates that northerly winds will weaken during the afternoon and rapidly diminish after sunset Saturday evening. && .LONG TERM /SUNDAY THROUGH THURSDAY/... Issued at 144 PM MST Thu Nov 27 2025 Sun-Mon: Long range guidance continues to suggest a potential for precipitation (snow) associated with a progressive shortwave traversing the 4-Corners, Rockies and Central/Southern Plains late Sun into Mon. At this range, confidence in precipitation coverage, location and amounts cannot be ascertained with much confidence. Broadly speaking, the progressive nature of the system suggests relatively low precipitation amounts (sub- warning criteria).. and the synoptic setup/pattern suggests light winds. Tue-Thu: Long range guidance suggests a warming/moderating trend (Tue) as the Arctic airmass exits the region / drains downhill to the east and a low-level southerly return flow pattern ensues -- followed by a cooling trend assoc/w another cold frontal passage mid-week. && .AVIATION /18Z TAFS THROUGH 18Z FRIDAY/... Issued at 915 AM MST Thu Nov 27 2025 GLD: VFR conditions will rule through the TAF period, with cloud cover confined to the mid-upper levels (above ~8,000 ft AGL). Light/variable winds (today) will shift to the ESE-SE and modestly increase to ~7-13 knots this evening and overnight.. when LLWS is expected in assoc/w a 40 KT southerly low-level jet. LLWS will end shortly after sunrise as the low-level jet weakens and surface winds veer to the S and increase to ~13-18 knots. MCK: VFR conditions are anticipated to prevail through the TAF period. While low stratus may develop over portions of central Kansas and south-central Nebraska near the end of the 18Z TAF period.. guidance continues to suggest that MVFR ceilings will be confined E and SE of the McCook terminal. Light/variable winds (today) will shift to the ESE-SE and modestly increase to ~6-12 knots this evening and overnight.. when LLWS is expected in assoc/w a 40 KT southerly low-level jet. LLWS will end within a few hours after sunrise as the low-level jet weakens and surface winds veer to the SSE and increase to ~15-20 knots. && .GLD WATCHES/WARNINGS/ADVISORIES... KS...None. CO...None. NE...None. && $$ SHORT TERM...Vincent LONG TERM...Vincent AVIATION...Vincent