Area Forecast Discussion
Issued by NWS Amarillo, TX
Issued by NWS Amarillo, TX
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697 FXUS64 KAMA 161138 AFDAMA Area Forecast Discussion National Weather Service Amarillo TX 638 AM CDT Sun Aug 16 2026 ...New AVIATION... .KEY MESSAGES... Issued at 631 AM CDT Sun Aug 16 2026 - Another round of showers and thunderstorms are possible this afternoon and evening, which could lead to severe wind gusts and localized flash flooding. - High pressure is expected to build back in this week resulting in another round of widespread triple-digit temperatures. - A new system moving into our east mid-week may result in similar shower and thunderstorms opportunity as last week. && .SHORT TERM... (Today through Monday night) Issued at 1227 AM CDT Sun Aug 16 2026 Present CAMs continue to see the Panhandles stay active today as we look to deal with two different lifting mechanism driving storm production in our south and northwest. The first of these mechanism looks to be a weak frontal boundary that could be our key to see storms across the Southern and Central portions of the Texas Panhandles. The issue with this mechanism, however, is going to be on the final placement of the boundary, which will effect how far south storm will actually start. Overnight CAMs have suggest that this boundary will likely settle a county or so south our CWA, which does bring better chances of activity reaching the I-40 corridor. While this has been a more recent trend, it does line up better with what radar imagery saw last night. Given this, we have decided to spread our chances of precipitation further south then previously forecasted. As for the second lifting mechanism, much like yesterday, look for a new short-wave to aid in forcing activity off the Southern Front Range and into the Northwestern Panhandles. As for impacts, expected instability is roughly as good as it was yesterday with areas working with around 1500 to 2000 J/kg of MLCAPE. However, a distinct lack of wind shear for tomorrow is expected to keep most of these storms more vertical making it hard to stay organized long enough to produce much in terms of hail. Instead concern will be more focused on the potential for damaging winds and localized flooding. As it stands, current CAMs are seeing around 1200 to 1500 J/kg of DCAPE that could result in some down burst winds pushing 60 to 70 mph. Meanwhile, PWAT values for tomorrow continue to trend higher than yesterdays activity with some areas peaking over the 1.5 inch mark. This could lead to much better rainfall rates and localized flash flooding, especially in urban environments and areas that have already seen decent rainfall from yesterday. Otherwise look for slightly cooler temperatures for the afternoon with highs in the upper 80s to low 90s. Moving into Monday, models do see the upper-level high pressure system start to retrograde back west towards the Panhandles. This movement will be start of the Panhandles warming back up and drying back out. Still chances of isolated thunderstorms do look remain present for the north that afternoon and evening albeit at only around a 10 to 20 percent. && .LONG TERM... (Tuesday through Saturday) Issued at 1227 AM CDT Sun Aug 16 2026 Model agreement continues to trend towards the current upper-level high retrograding back west during the course of next week. This retrograde will eventually see said high back over the Panhandles resulting in a return of the more widespread triple-digit temperatures for Tuesday alongside the potential need for another round of heat related products. Unfortunately this return of high pressure will see our chances of storms drop off for the day as well. However, present GFS and ECMWF runs have finally gotten into better agreement on the supposed trough digging south sometime Wednesday into Thursday. Currently these runs have see the main axis of the trough further east then what the GFS was initially trying to do, which will keep keep us out of the main activity push from the trough unfortunately. However, this position does open the Panhandles to some very good northwesterly upper-level flow, which will be beneficial in seeing storms push off the mountains to our west and into our area once again. Present ensembles have also picked up on the idea with current NBM now giving us a 10 to 20 percent chance of seeing precipitation in our west and north clear into Friday evening. However, given that this high have been staying very potent in most of the model runs confidence in these chances holding out are not too high. For now, look for temperatures in the upper 90s to triple-digits to be the norm for the week. && .AVIATION... (12Z TAFS) Issued at 629 AM CDT Sun Aug 16 2026 Scattered thunderstorms are expected for much of the forecast area this afternoon and evening, leading to PROB30 groups for KAMA and KDHT. KGUY may need PROB30 groups as well, but recent southward trends in storm activity have led to lower confidence. Winds will be 10 kts or less turning from variable directions throughout the period. Prevailing sky conditions should be VFR at all sites over the next 24 hrs. Harrel && .AMA WATCHES/WARNINGS/ADVISORIES... TX...None. OK...None. && $$ SHORT TERM...11 LONG TERM....11 AVIATION...38