Area Forecast Discussion
Issued by NWS Dodge City, KS
Issued by NWS Dodge City, KS
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776 FXUS63 KDDC 142331 AFDDDC Area Forecast Discussion National Weather Service Dodge City KS 631 PM CDT Fri Jun 14 2024 .KEY MESSAGES... - Severe thunderstorms are possible this evening as storms roll east-northeast out of southeast CO. Primary hazard will be damaging wind gusts. - Another round of storms is possible Saturday afternoon and evening, however weak mid/upper level flow should limit severity. - Strong southerly winds are likely early next week, especially Monday and Tuesday. && .DISCUSSION... Issued at 200 PM CDT Fri Jun 14 2024 Visible satellite observations show widespread cloud debris is lingering over southwest KS from overnight convection, which is keeping temperatures in most locations much cooler than expected in the upper 70s/low 80s. That said, continued erosion of this cloud cover over the next couple hours should still allow afternoon highs to reach into the upper 80s/low 90s. Otherwise, latest water vapor satellite imagery and RAP upper air analysis show a compact shortwave impulse over the Four Corners region that is moving northeast towards the central Rockies. As forcing for ascent increases ahead of this wave, thunderstorm development is anticipated across south-central and southeast CO within an environment characterized by modest buoyancy and deep-layer shear. With time, upscale growth into a loosely organized convective system is likely, which will move east- northeast into western KS by 22-00Z. DCAPE values ahead of this complex are progged to be in the 1200-1400 J/Kg range, which will once again support damaging wind gusts as the primary severe hazard. There is some uncertainty regarding how far east thunderstorms can reach, as a few HREF members suggest activity will decay before US-283. This seems reasonable given the aforementioned lingering cloud cover, which will inhibit surface parcels. However, deep-layer shear increases slightly with northward extent, which may support MCS maintenance across roughly the northern half of our CWA. Either way, convection will be largely clear of our area by 08Z, and the remainder of the overnight period will be quiet with lows in the low 60s west to low 70s east. Daytime Saturday, short range ensembles agree the compact upper level impulse will eject onto the central plains. As forcing for ascent associated with this wave interacts with any remnant outflow boundaries, another round of scattered thunderstorms appears likely roughly along and near an axis from Liberal/Meade to Wakeeney/Hays. Weak deep layer shear should limit storm severity, but a few severe wind gusts or quarter sized hail stones cannot be ruled out. Sunday into early next work week, medium range ensembles continue to suggest broad, longwave upper level troughing will become established over the western CONUS. With modest southwesterly flow across the central Rockies, fairly deep leeside surface troughing will develop over eastern CO that will persists well into the week. Mass response around this feature will result in strong southerly winds, especially on Monday and Tuesday, sustained in the 25-35 mph range with gusts up to 50 mph. Additionally, precipitation chances will remain somewhat elevated as both ECMWF EPS and GEFS probability of QPF > 0.01" is at least in the 30-60% range each day through Wednesday, and as high as the 70-80% range Thursday and Friday. && .AVIATION /00Z TAFS THROUGH 00Z SATURDAY/... Issued at 613 PM CDT Fri Jun 14 2024 A broken line of strong/severe thunderstorms is expected to impact all four terminals in some manner this evening. We will continue with VCTS in the TAFs with amendments likely as storms draw closer to terminals for when timing of prevailing TSRA becomes more clear. Thunderstorms are expected to move east of DDC and HYS by late tonight with aviation weather improving as winds become light and variable. On Saturday, winds will increase out of the southwest at around 20 knots areawide with gusts to around 30 knots at times in the afternoon. && .DDC WATCHES/WARNINGS/ADVISORIES... None. && $$ DISCUSSION...Springer AVIATION...Umscheid