Area Forecast Discussion
Issued by NWS Amarillo, TX
Issued by NWS Amarillo, TX
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688 FXUS64 KAMA 091905 AFDAMA Area Forecast Discussion National Weather Service Amarillo TX 205 PM CDT Tue Jul 9 2024 ...New SHORT TERM, LONG TERM... .SHORT TERM ... (This evening through Wednesday night) Issued at 204 PM CDT Tue Jul 9 2024 What remains of today as well as tomorrow could be our best chances for showers and thunderstorms for this week mostly thanks to the still present northwesterly flow seen in the upper-levels. This flow will aid in moving any convection started off the southern Rockies over the Western Panhandles for this evening and Wednesday. Despite the decent northwesterly flow, however, chances are still rather limited with latest CAMs seeing best chances for isolated storms until late this evening. Severe potential is not that great either, with most CAMs seeing less than 100o J/kg of MLCAPE. Still a severe wind gust can not be fully ruled out, especially if the inverted V soundings the RAP is presenting comes to fruition. Rather, the better chances may follow Wednesday afternoon with models seeing a short-wave move through and act as a boundary for the day. As it stands latest CAMs are seeing the potential for showers around and south of I-40 with guidance seeing POPs around 20 to 30% for the afternoon and evening. Severe potential is better in terms of MLCAPE with most models seeing 1000 to 2000 J/kg present across I-40 and south. However, the shear is not the greatest with only a handful of models seeing effective bulk shear near 20kt. Once again the main threat may be more on the wind side of things with the sounding and DCAPE suggest a severe wind gust can not be ruled out from a collapsing thunderstorm. Otherwise, drier conditions look to follow in the overnight as models see the stronger upper-level high begin to move in. As for temperatures, look for them to be on the rise today and tomorrow with most locations returning to the low to mid 90s both afternoons. Scoleri && .LONG TERM ... (Thursday through next Monday) Issued at 204 PM CDT Tue Jul 9 2024 Warm and dry will likely be the main themes clear into the next week as many models see the strong 500mb high pressure system shift east and place the Panhandles underneath it clear through Monday. This will cause the upper-level flow to shift to a more northerly to near stagnate flow which will make it hard for anything that develops off the western mountain ranges to move through. The only exception may be Thursday, when flow could still be strong enough in afternoon. However, confidence in such a outcome is not high given that would require high dewpoints to hold, which not many models are expecting. Otherwise, the main issue for what remains of the week will be the continue rising temperatures. As it stands, all locations will look to be in the mid to upper 90s as early as Friday, with chances at triple digits getting better as we head into the weekend. Scoleri && .AVIATION... (18Z TAFS) Issued at 1223 PM CDT Tue Jul 9 2024 For the 18Z TAFs, isolated thunderstorms may move into western sections late this afternoon and evening. However, due to expected sparse coverage and uncertainty on where any storms will be located this far out in time, have opted not to mention at the terminal sites for this forecast cycle. Otherwise, VFR conditions are expected through 18Z Wednesday. 02 && .PRELIMINARY POINT TEMPS/POPS... Amarillo TX 65 94 64 94 / 10 30 20 10 Beaver OK 63 96 64 97 / 0 10 0 0 Boise City OK 59 91 60 93 / 10 10 0 0 Borger TX 67 99 67 100 / 10 20 10 10 Boys Ranch TX 64 95 64 96 / 20 30 20 10 Canyon TX 64 92 61 92 / 20 30 20 10 Clarendon TX 66 94 65 94 / 0 30 10 10 Dalhart TX 59 93 59 94 / 10 20 10 0 Guymon OK 61 94 61 97 / 10 10 0 0 Hereford TX 64 94 62 94 / 30 30 20 10 Lipscomb TX 65 96 65 98 / 0 20 10 0 Pampa TX 64 94 64 94 / 10 30 10 10 Shamrock TX 66 95 65 96 / 0 30 0 10 Wellington TX 67 96 66 97 / 0 20 10 10 && .AMA WATCHES/WARNINGS/ADVISORIES... TX...None. OK...None. && $$ SHORT TERM...11 LONG TERM....11 AVIATION...02