976 FXUS64 KAMA 091756 AFDAMAArea Forecast Discussion National Weather Service Amarillo TX 1256 PM CDT Tue Sep 9 2025
...New KEY MESSAGES, SHORT TERM, LONG TERM, AVIATION...
.KEY MESSAGES... Issued at 1250 PM CDT Tue Sep 9 2025
- Thunderstorm chances continue today and tomorrow for portions of the Panhandles. Storms today may become severe, with large hail and damaging winds being the primary hazards.
- Dry conditions are forecast later this week before storm chances ramp up this weekend.
- Afternoon high temperatures will consistently be in the 80s to low 90s each day.
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.SHORT TERM... (This evening through Wednesday night) Issued at 1250 PM CDT Tue Sep 9 2025
Visible satellite imagery early this afternoon depicts cumulus building across the higher terrain in New Mexico with isolated storms attempting to form over that region. Further east for the Panhandles, temperatures have already warmed up into the 80s for the entire area with mostly clear skies in place. Moisture will remain adequate for storm development over the southern High Plains this afternoon through tonight. Similar to yesterday, synoptic scale forcing is lacking for today but with temperatures expected to be a bit warmer, convective temperatures are forecast to be reached this afternoon. This could lead to isolated to scattered storms developing by late this afternoon and continuing into the evening. Some of the 60s dew points that are currently in place should mix out as we heat up this afternoon, but am skeptical that dew points will mix down into the mid to upper 40s that some of the CAMs are depicting. Blended NBM dew points did quite well yesterday and they are only forecast to drop into the mid to low 50s, so am keeping those in the forecast for now. In either case, drier air will be in place at the surface which will lead to higher DCAPE values so damaging wind gusts will be a hazard with any storms today. Additionally, MLCAPE along with bulk shear values will remain sufficient for large hail and potentially hail upwards of 2 inches should an updraft be able to sustain itself for long enough. Convection from CO/KS may also move into the northern Panhandles overnight, but the severe threat should be well over with by then.
Center of high pressure should be south of the forecast area on Wednesday with temperatures once again in the upper 80s to low 90s. Mid level moisture should still be present even though drier air should once again be in place at the surface. Synoptic support for storms will once again be lacking on Wednesday but storms may still be able to form off of the higher terrain and move east or convective temperatures are reached. Either of these scenarios may result in thunderstorms reaching at least the western Panhandles during the afternoon into the evening hours. Severe storms are currently not expected given the lack of instability, but strong wind gusts cannot be ruled out with drier conditions in the lower levels of the atmosphere.
Muscha
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.LONG TERM... (Thursday through next Monday) Issued at 1250 PM CDT Tue Sep 9 2025
The center of the upper level low pressure system is forecast to be across northern Nevada late this week with the base of the trough reaching the Desert Southwest. Over the High Plains, ridging will remain in place with high pressure over Oklahoma and Arkansas. This pattern will not be favorable for thunderstorms to develop across the region so dry conditions are expected on Thursday and Friday. As the trough lifts east and northeast this upcoming weekend, southwest flow aloft may allow Pacific and Gulf of America moisture to increase over the Panhandles. If the base of the trough moves over the region on Saturday night into Sunday, showers and thunderstorms will be possible. That looks like the best time frame for thunderstorms at this time during the long term forecast period based on the latest suite of global model guidance. Given the fairly stagnant pattern over the Panhandles, temperatures will consistently stay in the 80s to lower 90s each afternoon through early next week.
Muscha
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.AVIATION... (18Z TAFS) Issued at 1250 PM CDT Tue Sep 9 2025
VFR conditions are forecast for this TAF cycle. Main thing to watch out for are isolated thunderstorms later this afternoon through this evening. The potential for storms to move over any one terminal is too low to mention in the TAFs at this time. Outside of the storm potential, winds will remain out of the southwest to southeast around 10-20 kts with occasional higher gusts.
Muscha
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.AMA WATCHES/WARNINGS/ADVISORIES... TX...None. OK...None. &&
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SHORT TERM...05 LONG TERM....05 AVIATION...05
NWS AMA Office Area Forecast Discussion