Area Forecast Discussion
Issued by NWS Amarillo, TX
Issued by NWS Amarillo, TX
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220 FXUS64 KAMA 041922 AFDAMA Area Forecast Discussion National Weather Service Amarillo TX 222 PM CDT Tue Jun 4 2024 ...New SHORT TERM, LONG TERM... .SHORT TERM ... (This evening through Wednesday night) Issued at 221 PM CDT Tue Jun 4 2024 A couple stray storms can`t be ruled out this afternoon as a front reaching the KS-OK border as of 18z continues pushing south. Ahead of the boundary is a drying air mass characterized by falling dew pts and rising temps, while higher moisture content and cooler temps exist behind it. This front may provide enough forcing and theta-e advection with it to overcome capping and dry air, to perhaps pop off some convection. There have already been signs of this taking place up in SW Kansas, where some weak convection has pulsed up and down this morning. This activity has failed to maintain itself for any extended period of time despite the better moisture, which may be a sign of things to come for the area in the coming hours. If any elevated convection can tap into observed MLCAPE values of 2000-3000 J/kg and very steep low to mid level lapse rates of 8-10 deg C, they could be strong to marginally severe with gusty winds and hail the main threats. Overall, there`s only about a 10-15% chance from 4-8 PM across the eastern and southern Panhandles, generally east of a hypothetical Guymon to Amarillo line. Tomorrow will be warm once again as upper level ridging spreads towards the Plains region, centered over the southwest CONUS. Any moisture left over should be scoured away, resulting in no precipitation to speak of. High temperatures will climb to the 90s again, and overnight lows will be in the 60s. Harrel && .LONG TERM ... (Thursday through next Monday) Issued at 221 PM CDT Tue Jun 4 2024 The pattern for Thursday through the weekend into early next week has a high chance of being dominated by a high pressure system centered over the desert SW. The orientation of the high will be impacted by its interact with a low pressure system centered across the Great lakes during this same time. The interaction between these system has a high chance of leaving the panhandles under the influence of the high pressure but on its NE side setting up a NW flow. This pattern is similar to the one that occurred last week to early this week which lead to rain showers and thunderstorms. This pattern looks to do the same as it will allow moisture to stream back across the southern plains and allow short wave troughs round the ridge and move across the southern plains. This will allow for rounds of rain showers and thunderstorms each day across the panhandles even if the chances of any one spot seeing these being moderate to low. The overall dynamics during this NW flow event is supportive for the formation of a few strong to severe thunderstorms each day. The chances for these strong storms will vary each day based on the moisture, instability, and dynamics. What further improves confidence that these strong storms should occur is that this event is similar to a very recent event that produced severe weather in the panhandles. Now there is some overarching uncertainty with regard to the exact orientation of the ridge and the NW flow. There is a chance that the high pressure comes in stronger which will push more of the active weather into OK proper leaving lesser activity for the panhandles. Conversely if it is slightly weaker or remains as forecasted then the panhandles will be more likely to see the active weather. Temperatures for Thursday through Saturday will have a high chance of being hot with highs in the 90s to 100s. These temperatures are then likely to cool down Sunday as a cold front passes across the region with the cooler conditions lasting to mid week. The passage of the front should only impact the temperatures with the chance for rain shower and thunderstorms remaining across the panhandles. This passage of the cold front could be a sign that even more active weather could arrive in the panhandles for next work week as the short waves trough becomes more robust. However the uncertainty of the pattern does not lend much confidence to that prediction beyond active weather has higher odds than not of continuing. SH && .AVIATION... (18Z TAFS) Issued at 1220 PM CDT Tue Jun 4 2024 VFR conditions are favored at all sites for the 18z TAF period. Some scattered mid to low clouds may move in behind the cold front this afternoon, but any thicker ceilings should remain above MVFR thresholds. This front could also produce a stray storm or two near KGUY or KAMA this afternoon after 21z, but this only has a 10-15% chance of occurring. Otherwise expect winds to become mostly light and variable overnight. Harrel && .PRELIMINARY POINT TEMPS/POPS... Amarillo TX 64 94 66 96 / 10 0 0 10 Beaver OK 61 97 66 94 / 0 0 0 10 Boise City OK 58 94 62 91 / 10 0 0 20 Borger TX 65 98 69 100 / 0 0 0 10 Boys Ranch TX 64 98 66 99 / 0 0 0 10 Canyon TX 64 93 64 96 / 10 0 0 10 Clarendon TX 64 92 66 96 / 10 0 0 10 Dalhart TX 59 95 62 94 / 0 0 0 10 Guymon OK 60 96 64 93 / 0 0 0 10 Hereford TX 64 96 64 99 / 10 0 0 10 Lipscomb TX 63 96 67 95 / 10 0 0 10 Pampa TX 64 94 67 96 / 10 0 0 10 Shamrock TX 65 93 66 96 / 10 0 0 10 Wellington TX 66 94 67 98 / 10 0 0 10 && .AMA WATCHES/WARNINGS/ADVISORIES... TX...None. OK...None. && $$ SHORT TERM...38 LONG TERM....98 AVIATION...38