390 FXUS64 KAMA 081513 AFDAMAArea Forecast Discussion National Weather Service Amarillo TX 1013 AM CDT Mon Sep 8 2025
...New UPDATE...
.UPDATE... Issued at 1010 AM CDT Mon Sep 8 2025
A line of thunderstorms remains in place across northwestern Oklahoma through Hemphill/Wheeler counties in the Texas Panhandle. These storms continue to slowly slide to the east/southeast and should be out of the area in the next hour or two. Models are still very inconsistent on the area for potential additional storm development for this afternoon. Given the model spread and with some of the models showing storm initiation further west, have included low end mentions of PoPs for most of the Panhandles this afternoon. The rest of the forecast remains on track through this afternoon.
Muscha
&&
.KEY MESSAGES... Issued at 1205 AM CDT Mon Sep 8 2025
- Thunderstorms are possible today across mainly the eastern Panhandles. Some of the storms may become severe, with large hail and damaging winds the primary hazards.
- Mostly dry conditions are forecast Wednesday through Friday with temperatures near to slightly above average each afternoon.
&&
.SHORT TERM... (Today through Tuesday night) Issued at 1205 AM CDT Mon Sep 8 2025
Showers and storms have cleared the Panhandles and re-development is not expected overnight as convective inhibition has taken over the region. What`s left of the 500mb shortwave is situated over SW Kansas, and is exiting to the east. There`s a low chance (~20%) we could see some light scattered showers develop early this morning after 6 AM across the eastern Panhandles, but would likely be very short-lived due to lack of lift.
The crest of upper level ridging will remain just to our west over the Rockies this afternoon, but temperatures will warm further as it approaches. Highs in the 80s are forecast (a few of the typical warm spots will likely reach 90), and it will feel slightly muggy as 15- 20 mph south winds advect dew pts in the 60s. We`ll be keeping an eye on the eastern Panhandles this afternoon-evening when a sfc trough may provide enough lift to generate isolated to scattered thunderstorms near the TX-OK state line. CAMs still support this scenario, and even depict one or two benefit supercells riding a boundary as they move south. Shear values of 40 kts combined with 1500-2500 J/kg MLCAPE will be more than favorable for storms to potentially become severe with large hail and damaging winds the primary hazards. If low-level shear profiles turned out to be more favorable, there would even be a low-end tornado threat (the overall probability for tornadoes is ~2% or less within 25 miles of any given location). Convection may congeal into a small cluster with time, which may necessitate higher POPs across the east should this trend persist. Regardless, activity should gradually decay as it moves east-southeast towards the Red River and Texas Big Country through the evening hours. PWATs are progged to be sustained in the 1.0-1.5" range across our east, with a 30-40kt LLJ pumping quality theta-e directly into these storms. Localized heavy rain and flooding can`t be ruled out as a result (10-30% chance for localized rainfall totals >1").
500mb ridging is projected to further influence our weather on Tuesday, enhancing the mid week warming trend with highs in upper 80s to mid 90s. If we are going to get any additional precipitation Tue, it would be aided by 700mb theta-e advection during the day. However, large-scale subsidence will be hard to overcome, lending meager POPs
NWS AMA Office Area Forecast Discussion